ammonia

The two astronauts disconnected an old empty ammonia tank and got a new one ready to put in its place.

Noting this, the experimenters deduced that ammonia was the airborne molecule to which the bacteria were responding.

And for anyone thinking of a squid feast, Walker-Smith said giant squid contain high levels of ammonia in their bodies to help them float.

Researchers have been trying to explain the origin of the ammonia that triggered the formation of the first biomolecules on Earth.

He came home in the early morning hours, high on ammonia and bleach, and made my mother prepare dinner for him in the dark.

If the wet spot smells sort of sweet (not like urine, which has the harsher odor of ammonia), it's likely to be amniotic fluid.

And I'm going to ask, after I reach equilibrium, what is the partial pressure of nitrogen hydrogen and ammonia?

"It's like this: You're watching gay porn, feeling good . . . suddenly they stuff ammonia into your nose, " a man whispers to his friend.

The recuperator tube of ammonia condenser on a factory was made of 316L stainless steel and pitted after used for only one year.

Liquid ammonia, mainly used as refrigerant or to make Ammonium and nitrogen, is an important yet dangerous chemical.

Amines are basic nitrogenous compounds in which one, two or three atoms of hydrogen in ammonia are replaced by alkyl or aryl groups.

On Jupiter, the same sort of clouds can form, but the crystals are made of ammonia instead of water.

The refrigerator uses chemical reactions of ammonia, butane and water to turn a heat input into a cold output.

With the exception of a few companies, most ammonia producers operated at close to capacity.

Unfortunate enough to be bitten, the available ammonia water or anti-histamine agent class steroid ointment to treat.

The effect of temperature on nitrification in a two-stage BAF system used for the treatment of ammonia-rich river water was investigated.

After twice removal, the concentrations of phosphate and ammonia nitrogen in the hogpen waste water can come up to the discharge standards.

Methods: To use the technology of ultrasonic drawing, the means of little white mouse and ammonia water, as well as phenol red drain amount.

The material is impermeable to air and fluids and can withstand at least eight hours of exposure to corrosive chlorine and ammonia gas.

Ammonia gas has been used experimentally to neutralize the acid, while other solutions are being researched.

well - kept heat : imported ammonia polyester bubbled to improve the heat preservation effect . in winter , overnight water is still hot.

The researchers say that knocks out the possibility that the ammonia resulted from contamination during the experiment.

the other end of the mixed gas outlet pipe is connected with a determinator for ammonia dissociation rate.

Rhizobia are able to induce the organogenesis of root nodules on leguminous plants and reduce atmospheric nitrogen into ammonia.

The ammonia nitrogen is the main organic pollutant. At present, the river has not been polluted by the heavy metal yet.

Hydrazine is similar to chlorine or ammonia in that it affects the lungs and breathing tissue, the general said.

The ammonia volatilization reduction of humic acid urea correlated significantly with its nutrient-release mode and soil ambient.

Karl Fischer titration was applied to determine the water in Sulfadiazine Zine, using methanol-ammonia as the solvent.

The studies indicate that the ultrasonic irradiation is an effective method for the degradation of ammonia-nitrogen from landfill leachate.

The necessity and feasibility of using ESD in ammonia plant are presented in the light of the interlock management situation.

Any of a class of inorganic coordinationcompounds of ammonia and a metallic salt.

Theoretical analysis and thermodynamic calculation were made to compare with the traditional ammonia vapor compression heat pump cycle.

The company used fire hydrants to pump more than a million gallons of wastewater contaminated with ammonia onto the ground.

Coking wastewater is one kind of organic wastewater, difficult to be degraded with high concentration of ammonia and organisms.

the main form of inorganic nitrogen in sediments was of ammonia, and the submerged plant cannot change this case.

The methanol molecule has the best catalytic effect among the three molecules followed by the water and ammonia molecules.

As the second largest chemical products except ethane, the synthetic Ammonia is an essential intermediate for the fertilizer production.

You've got to have ammonia somewhere in the process.

This paper deals with the law of organics, TSS and ammonia nitrogen removals by treatment with two-stage biological aerated filter tank.

During MD experiments, the titration using formaldehyde was applied to determine the concentration of ammonia in water.

oak given a weathered appearance by exposure to fumes of ammonia; used for cabinetwork.

After descending the copper etching liquid waste simply by adding a little salt and ammonia etching can be recycled standards.

The ammonia is an importance of nitrogen vegetable the fertilizer synthesize an ammonia industry is a foundation chemistry industry of a.

The invention discloses an ammonia nitrogen adsorbent and a preparation and application method thereof.

CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION. LIQUEFIED AMMONIA. (EUROPEAN STANDARD EN 12126).

Quantitative analysis results showed that the maximal ammonia volatilization was lower than 0. 5% of the total nitrogen of influent in SSF.

This incident, antifreeze, ammonia water and the absence of a stipulation in the contract, therefore no breach.

Micro screens, nana-titanium oxide, UV light are integrated in a tank for ammonia, nitrogen and sludge removal to save both space and cost.

CHEMICALS USED FOR TREATMENT OF WATER INTENDED FOR HUMAN CONSUMPTION. AMMONIA SOLUTION. (EUROPEAN STANDARD EN 12122).

Pluto's companion Charon might be covered with active volcanoes of ammonia-rich water spewing forth from the moon's deep interior.

Discovery is delivering a new astronaut sleeping quarters, an ammonia tank and a gyroscope for the space station.

Amine: Any of a class of nitrogen-containing organic compounds derived, either in principle or in practice, from ammonia (NH3).

Detailed professional observations revealed that high-flying light-colored ammonia-based clouds formed over the planet-circling dark belt.

It was supposed that zeolite decreased the ammonia volatilization in composting mainly by the adsorption of ammonium nitrogen.

Haber lends his name to a process for the industrial synthesis of ammonia, an important component of fertilizer in modern agriculture.

Ammonia volatilization and hydrogen sulfide volatilization were the main reason of stench arising in poultry composting process.

This might be the main reason that it caused death that the ammonia nitrogen waspoisonned. 3.

Studied the effects of ultrasonic time, quantity of ammonia, and the quantity and chain length of the fatty acid on the ferrofluids.

Put some yeast on the stains and wash with water. It will be more effective if a little bit of ammonia solution is added during washing.

As a chemical it's also used in insecticides, water purification, sewage treatment and the production of ammonia.

Modification of ammonia synthesis section in the company is introduced.

Due to the tight supply of raw material coal and the rise in its price, the production cost of ammonia has increased by a big margin.

as the smell of ammonia is a reflection of rot rather than the enzymatic action that breaks down the proteins of the milk.

TESTING FOR LEAK TIGHTNESS BY MEANS OF AMMONIA. LOCATING OF LEAKS BY THE SUCTION CUP METHOD.

The stone can be used for to clean to discard aquatic and total ammonia nitrogen.

Areas of its research include organic nitrogen, ammonia concentrations, aquatic food webs, and global nitrogen budget.

Crystal O, the scene of the ammonia gas cylinder may also be leaking bottles.

Two types of process in large ammonia plant using residue oil as a feed is described. Main technology and their development is discussed.

But, as regulatory and code officials become informed of its relative safety, ammonia "s use should be expanded. "

TESTING FOR LEAK TIGHTNESS BY MEANS OF AMMONIA. LOCATING OF LEAKS BY OVERALL PRESSURIZATION.

Ammonia selective catalytic reduction (SCR) of nitrogen oxide is the only industrialized flue gas DeNOx technology.

New Hubble images reveal what happened to one of Jupiter's main cloud belts: it's hiding behind ammonia clouds.

And its advantages includes low cost, high efficiency, good water-proof property and no the irritant smell of ammonia water.

Washing zirconium hydroxide by ammonia and ethanol to break the agglomerate particles was used and proved in the experiments.

In liaoning FGD market, ammonia resource is rich, so ammonia desulphurization technology is to be selected prioritly.

The results showed that adsorption properties to formaldehyde of the expanded graphite were promoted rapidly after modification by ammonia.

A method combining qualitative and quantitative RBI analysis is adopted to carry out risk assessment on the synthetic ammonia plant.

Results Dry cough-syrup can reduce the reaction of ammonia caused the number of mice cough, an increase in mice tracheal phenol red output.

and the nitriding atmosphere is ammonia and propane gas or other gas or liquid which can generate nitrogen atoms and carbon atoms.

Optimization of operating the secondary reformer in an ammonia plant is investigated by process simulation.

the water removed of sodium sulfate removed is removed also sulfate radicals and ammonia, and can directly return to a production plant.

The stable and safe operation of the ammonia plant is severely affected by the air lock ammonia cooler.

The inhibition of 18 substituted phenolics to ammonia-oxidizing activity of sediment was measured by means of oscillator test.

Several reactions involving the direct assimilation of ammonia into organic compounds have been described in living systems.

The new technology for ammonia distillation in coke oven gas purification system and its characteristics are introduced.

The body essential ammonia acid have 8 kinds and be close to animal nutrition protein.

We study of ammonia, water and TEOS concentration on the impact of nanoparticle size.

But its return to original state product is mainly the ammonia nitrogen, but is not the ideal nitrogen.

Ammonia from protein digestion, the primary excretory product, is converted to urea to be excreted in urine.

Further, reacted mixed gas can be separated and the separated ammonia can be used as an ammonia gas source for combined alkali preparation.

Ammonia from protein digestion, the primary excretory product, is converted to urea to be excreted in urine.

Further, reacted mixed gas can be separated and the separated ammonia can be used as an ammonia gas source for combined alkali preparation.

Ethanolamine and its derivative di-and triethanolamine result from reacting ammonia with ethylene oxide.

In that research, the team sent sparks through a mixture of methane, ammonia, carbon dioxide, and hydrogen sulfide.

Failure occurs in the operation of the liquid ammonia transfer pump, so an analysis is made of the causes for its failure.

Process conditions for the reforming section of an ammonia plant are optimized by process simulation.

Diuril may cause a potassium deficit. , which may in turn cause relative alkalosis and result in a lowered blood brain barrier to ammonia.

Among industrial damage was the collapse of two chemical plants, spilling 80 tonnes of liquid ammonia, according to Xinhua news agency.

Ammonia, paint thinner or even the spray from opening a carbonated soda can set of the alarm.

The invention relates to a method for purifying and recycling benzoic hydrocarbon, ammonia and coal tar from coke-oven gas.

The invention relates to a method for purifying and recycling benzoic hydrocarbon, ammonia and coal tar from coke-oven gas.

The constructional features as well as temperature distribution of the internals of 3beds quench-tube cooled ammonia converter are given.

It is prepared by reacting anhydrous ammonia and carbon dioxide gas under very high pressure in the presence of a suitable catalyst.

Amid the gaseous pollutants they inhale are carbon monoxide, sulphur dioxide, nitrogen oxides, hydrochloric acid, ammonia and hydrocarbons.

Methods: The cough model induced by ammonia liquor in mice was used to observe the antitussive effects.

And pulls out the ammonia acid and depends the nitric acid the stimulation to be strongest.

More broadly, ammonium hydroxide (see ammonia) and soluble hydroxides of the alkaline earth metals are also called alkalies.

Finally, an example of application for a double faces dry gas seal used in an ammonia pump is given.

Compare with nitrate nitrogen, ammonia can be assimilated to amide and amino acid around roots and absorbed directly.

Meteorites may have released compounds including hydrocarbon chains and a large amount of ammonia, which is rich in nitrogen.

Meteorites may have released compounds including hydrocarbon chains and a large amount of ammonia, which is rich in nitrogen.

Ammonia production in the presence of urease-producing bacteria is responsible for the production of struvite in the human body.

The microbial mechanism and process performance of anaerobic ammonia oxidation (ANAMMOX) were systematically studied.

The invention relates to a technology for leaching silver from ores with ammonia free thiosulfate solution.

ATM is a white crystalline power, easily effloresce in air, Slightly soluble in water, Soluble in ammonia water and alkalies.

Experimental results showed that the precision of ammonia electrode assay was better than that of Nessler assay.

Sufficient ammonia source is required during starter-making and different ammonia source has subdominant effects on microbial metabolism.

Recently, the catalysts for ammonia synthesis with higher stability, higher activity and lower cost have received considerable attention.

PHOTOGRAPHY. AMMONIA PROCESSED DIAZO PHOTOGRAPHIC FILM. SPECIFICATION FOR STABILITY.

Ultrafine copper powder was prepared using hydrazine hydrate as reducing agent and ammonia water as the complexing agent.

By this method, the ammonia gas released from decomposition can be recirculated for producing ammonium nitrate or others.

By 1930 ammonia production was a thriving segment of the American chemical industry.

It also supplies liquid oxygen , liquid nitrogen, acetylene, carbon dioxide, hydrogen, propane, freon, liquid ammonia, and rare element gas.

Familiar with the cold storage refrigeration process, skilled ammonia screw chillers operating procedures.

Reliability of a complex synthetic ammonia system is influenced by many factors.

Ammonia is emitted by soils and animals, including cows, and is the primary neutralizer of atmospheric acidity.

Wet ammonia desulphurization process and its actual application are described.

Wastewater treatment plants concentrate large quantities of phosphorus and ammonia in their sludge-handling streams.

One of these is a mixture of ammonia and water.

Modified ACFs treated with acids and salts were produced. The absorption properties of the ACFs for benzene and ammonia were studied.

'A lot of the evidence shows that ammonia was not present in much abundance in the early Earth, so where did it come from? '

Hexagonal cone-shaped ZnO nano material were synthesized by the esterification between Zinc acetate and Ammonia water .

The results showed that the increase of nitrate-nitrogen resulted from biological nitrification of ammonia-nitrogen.

a large scale enterprise producing sodium bicarbonate, ordinary superphosphate , sulfuric acid, humic acid, synthetic ammonia, etc.

There is no accurate method for analyzing the reduction degree of pre-reduced catalyst for ammonia synthesis at present.

Ammonia and 5 organic amines are found to be effectively adsorbed by the self-made weekly acidic ion-exchange fiber.

But environmental groups told the Bush administration that "ammonia emissions from poultry operations pose great risk to public health. "

The removal of ammonia in a zeolite media biological aerated filter (ZBAF) includes two types of reactions: nitrification and ion exchange.

To oxidize(an ammonia compound)into nitric acid, nitrous acid, or any nitrate or nitrite, especially by the action of nitrobacteria.

The carbon black extracted from synthetic ammonia wastewater, after dried, can meet the quality requirement for conductive carbon black.

The article introduces the application of fixed ammonia alkali additive decomposition equipment on coking wastewater.

Ammonia and nitrite were not detected at the start, and no precipitation of fluoride salts was observed during these bioassays.

Damage at a chemical plant was also reported, with hundreds of people buried and tonnes of poisonous liquid ammonia released.

The subject put forward a new way to reduce the concentration of ammonia-nitrogen to a low level allowed by biological treatment.

Ammonia, also known as anhydrous ammonia, a colorless liquid.

The invention features available raw materials, small ammonia ratio, simple technique, easy operation and high product purity.

Studies of two species of soil bacteria showed that both colonies could detect the scent of airborne ammonia.

The major occupational risk factors were hydrogen sulfide, ammonia, benzene, non-methane hydrocarbon, gasoline and noise.

Dilute acid pretreatment, ammonia steeping pretreatment (ASP) and stream explosion process (SEP) of biomass are reviewed.

Nitrate nitrogen accelerates growth, ammonium nitrogen inhibits growth, the depression effect of ammonia chloride is obvious.

The utility model discloses a device for facilitating the replacement of a synthetic ammonia condenser, which is a trailer.

Ammonia may be a sign of renal failure and elevated acetone levels can indicate diabetes.

Flight controllers tried to restart the disabled ammonia pump early on Sunday but the circuit breaker tripped again.

Write the net equation for the synthesis of aspartate (a nonessential amino acid) from glucose, carbon dioxide, and ammonia.

LIGHT OLEFINS FOR INDUSTRIAL USE. DETERMINATION OF AMMONIA. SPECTROPHOTOMETRIC METHOD.

It has been long believed that only ammonia-oxidizing bacteria (AOB) could catalyze ammonia oxidation.

The suggestion is proposed for specification on the terms of aqua ammonia and ammonium hydroxide.

Methods Methods of cotton-pellet induced proliferation of granulation, phenol red and coughing stimulated by ammonia were used.

He also replaced the toxic ammonia that had been the original cooling agent.

A protective gas generation system is adopted with dissociation of liquid ammonia to get hydrogen and air separation to get nitrogen .

Ammonia gas released by fertilized cropland is a cause of air pollution. The land can also release nitrous oxide, a heat-trapping gas.

L- Citrulline helps the body rid itself of ammonia, a by-product of exercise.

Inference system is adopted to realize the extreme temperature control of saturating hot water tower in shift section of ammonia plant.

The utility model relates to a membrane type apparatus for removing ammonia and nitrogen.

Hydrogen is produced by the steam reforming of natural gas, the electrolysis of water and the dissociation of ammonia.

A brief sum-up is made of the process flow, process parameters and operation of the ammonia stilling.

The improvement of Multiple centrifugal pump sealing protection ring for ammonia production was introduced.

The invention provides a method for treating wastewater containing ammonia, vanadium, chrome and sodium sulfate.

Variations of the process enable production of high purity hydrogen, methanol, ammonia, methane or low heating value gas.

Bites can be treatment with suction cup to suck out the toxin and apply 3% ammonia solution or 5% sodium hydrocarbonate solution.

A very important type of gelatin dynamites are the so-called ammonia gelatins.

The type and extent of soil salinization affect the evaporation rate of ammonia significantly.

The acid proper-ties of its coking in front and behind by temperature programmed desorption of ammonia(TPD).

Like a frozen asteroid belt, it's littered with chunks of ice and frozen methane and ammonia.

The adsorption of palygorskite, collected from Xuyi, Jiangsu province, on ammonia nitrogen in waste water was discussed in the paper.

After superfluous dithizoneanalyticalgrade is wiped off by ammonia, determining absorbency and comparing with standard series.

When the resin is exhausted, exchange capacity can be regenerated with weak alkali-ammonia solution.

Bacteria in the nodules of leguminous plants' roots convert soil nitrogen into ammonia, the feedstock of nitrogen fertiliser.

Measurements of paniculate ammonium and gaseous ammonia in ambient air were studied by denuder difference and filter packs.

The SCR reactors are designed to accommodate sufficient catalyst to achieve guaranteed NOx reduction rate and ammonia slip.

With the increasing of fertilizer and ammonia , the technology of ammonia synthesis has developed greatly.

Detergents , bleach and harsh acids will quickly deteriorate canvas, whereas ammonia and alcohol will dry and cloud vinyl.

Besides water, the plume also contained carbon monoxide, carbon dioxide, ammonia, sodium, mercury and silver.

It turns out other plants also clean the air, of contaminants ranging from ammonia to benzene.

The results showed that adding crystal seed is good for ammonia- nitrogen wiping off rate, but bad for form big particle diameter crystal.

The results have shown that steel slag and zeolite can remove effectively phosphate and ammonia nitrogen from hogpen waste water.

Capacity of Ammonia- nitrogen and Orthophosphate Removal by Immobilized Scenedesmus sp .

Air quality issues include emissions of ammonia, hydrogen sulphide, volatile organic compounds and dust.

When synthetic ammonia, if makes the catalyst with the osmium, may obtain the high conversion rate under not too high temperature.

The hotter the weather, the more quickly the waste breaks down into ammonia to be taken up by plants.

G: Denotes gauges cleaned for gaseous steam, oxygen, hydrogen, carbon dioxide, acetylene and ammonia service etc.

The evolution of the ammonia molecule in linearly polarized microwave field was discussed.

The urine of urea have seed the taste of ammonia, the content of the larger (water content, the taste is the less) thick.

Over a period of six years, the scientists found that planting three rows of trees reduced total dust and ammonia by more than half.

Discovery is delivering a new astronaut sleepingcordersandquartersan ammonia tank anda gyroscope for the space station.

The N2 released from methanol synthesis can be used to synthesize ammonia for urea production.

Ammonia soluble in water, soluble in water after the formation of ammonium hydroxide solution of the alkaline.

This study could supply basis for the process control of new ammonia removal technology by using molecular diagnosis.

A good correlation of ammonia removal efficiency, nitrification rate and TN removal efficiency was found.

The PL linewidth is decreased with increasing ammonia flow rate due to the improved uniformity of Si-ncs under high NH3 flow rate condition.

Ammonia is a colourless gas with a very pungent odour.

Compared with the process with ammonia liquor, this new process had many advantages of high yield, small pollution and stable quality.

Give play to the resource advantage of Dazhou and speed up the development of large scale synthesis ammonia and methanol priority projects.

Dissolved ammonia, acting as an antifreeze, would help to keep it from freezing solid.

Yellowish nitrogen- doped titania with nitrogen source from ammonia was prepared by sol-gel method in room temperature.

The latest advances in platinum alloy catalytic gauzes for ammonia oxidation to manufacture nitric ads is reviewed.

The influencing factors in the process of determining ammonia were mainly studied and the best experiment parameters were offered.

Twelve Sector-specific tools: Pulp &paper, cement, aluminum, iron &steel, nitric acid, ammonia, lime, etc.

Natural and modified zeolite have strong selective adsorption ability to ammonia nitrogen in the wastewater.

Weekly testing for ammonia, nitrite, nitrate , turbidity, iodide, and strontium.

Examples include acids, lye, bleach, ammonia, sodium hydroxide and formaldehyde.

The other was the "ammonia incident" of "Modern City" in 2001, where there were ammonia indoor.

The main process and equipment of methanol heat exchanger EA - 206 in ammonia unit are introduced, and corrosion mechanisms is studied.

Pear is unfavorable use together with alkalescent medicine, the tea that be like ammonia alkaline, saleratus .

It is not practical to introduce ammonia and carbon dioxide separately into the gypsum slurry .

Penicillin of hydroxide ammonia benzyl: Action is stronger than ammoniac benzyl penicillin.

the average rate of nitrosation is above 80% through increasing the mass concentration of influent ammonia.

through the comparison of production operation data, evaluation was made for application effect of A203 type ammonia synthesis catalyst.

Objective: To observe the symptom and treatment effect of upper respiratory tract injury induced by ammonia poisoning.

DEA and TEA are "amines" (ammonia compounds) and can form cancer-causing nitrosamines when they come in contact with nitrates.

Ammonia converter is chemical plant works in the high temperature, high pressure and causticity environment.

In some ways , anhydrous ammonia is just as safe to handle as gasoline .

Study on the precursor phase composition of iron catalyst and discovery of FeO based catalyst for ammonia synthesis.

And electrolysis method using chemical precipitation of copper from copper ammonia water waste.

A compound derived from ammonia by replacing hydrogen atoms by univalent hydrocarbon radicals .

it has the capacity of fixing microbes and adjusting the equilibrium of free amine and ammonia ions.

In recent years, HPF desulfurization process using ammonia as alkaline source was developed in domestic.

Using TEOS as precursor, ammonia as catalyst, silica antireflective coating was prepared by sol-gel process.

Immense heat and pressure in the shock wave spark the creation of ammonia, or NH3, from nitrogen in the air and hydrogen in the comet.

Clearly visible shadows cast by Saturn's rings dense clouds of ammonia to the atmosphere.

Furthermore, ammonia is a typical soluble polar solvent, so the research on the ammonia will have a great practical significance.

The transporting, handling, garnering and producing of liquid ammonia were with high pressure.

They found that over a period of six years, planting three rows of trees reduced total dust and ammonia by more than half.

The coked waste water is one kind of the organic waste water which has high dense ammonia nitrogen and the organic matter.

The major components of PM are sulfate, nitrates, ammonia, sodium chloride, carbon, mineral dust and water.

The main influence factors of autotrophic ammonia removal were studied in batch tests by use of the biofilm from the reactors.

amorphous White powder. Tosic. Insoluble in water, Soluble in acids and ammonia chloride solution.

Conclusion Blood ammonia concentration increases in patients with constipation, therefore they should receive operation as soon as possible.

The mixture of ammonia and hydrochloric gas can bring nitrogen and ammonium chloride , with white mist being .

Jupiter From Hubble NASA scientists think Jupiter's missing southern belt is hiding out behind ammonia clouds.

TS-1 wAS synthesized using TPABr AS the template and ammonia, n-Butylamine, TEAOH etc. were used to adjust the pH value of the gel.

Life generates methane, ammonia, oxygen, hydrogen, carbon dioxide, and many other gases.

The quench gas of Kellogg multi-bed ammonia converter is the gas from tube-side of heat exchanger -C , whose temperature is C.

Ammonia and nitrite could be removed simultaneously in the ANAMMOX reactors.

This article introduces the layer-by-layer temperature-increasing reduction of A203 Low-temperature ammonia Synthesis catalyst.

Meanwhile, ammonia and amine formed in the reaction process can be reused.

shoe grease: - available gasoline wipe, and then concentrated ammonia soap then wash addition.

3-Aminopropanol was prepared by catalytic hydrogenation of ethylene cyanohydrin with improved Raney Ni catalyst in presence of ammonia.

The rapid increase of water temperature in spring induced a decrease of the ammonia removal efficiency .

Under the circumstances of the energy lacking and prices increasing, the energy saving of Ammonia industry has become a hot topic.