ion exchange

and (2) an ion exchange step in which at least the acid catalyst of acidic compounds is removed by an anion exchange resin.

Sodium chloride and hydrochloric acid are often used to regenerate spent ion exchange resins used in water purification.

At present, nuclear engineers clean cobalt from the system by trapping it in what are known as ion-exchange resins.

The method has been used on the ion-exchange membrane caustic soda system in Shenyang Chemical Industry Co. Ltd. with good performance.

The total amount of ion exchange state, carbonate state and ferric-manganese oxidation state has very little effects on full selenium.

The glass undergoes ion exchange at relatively low temperatures to a depth of at least 30 mum.

solution, due to a combination of ion exchange and electrostatic interactions governing the adsorption process.

Solid acid catalyst is a main aspect of catalyst development. Ion-exchange resin is one of solid catalysts used widely.

Crude triglycerides are contacted with a variety of adsorbents and ion exchange resins to reduce the levels of impurities.

Chemical modification includes treatment of coupling agent, surface covering, purification, ion exchange, laminated treatment with compound.

In this study, ultrafiltration, ion-exchange and reverse osmosis were used to separate natural taurine from oyster.

and the boronic acid solution after ion exchange is cooled through the cooling groove and purified by means of recrystallization.

Ion exchange is a mature technology, and its advantages are simple operation, under certain conditions, with better result.

Compared with inorganic catalysts, the ion exchange resin as catalysts shows excellent catalytic performance and could be readily recycled.

The ion exchange between mixed water and unconsolidated deposits inside caves is characteristic of cation exchange adsorption.

Ion exchange is one of practical measures to treat electro plating wastewater for reuse.

It is clear that catalysis with ion exchange resins provides an effective and efficient answer to a number of catalytic problems.

An improvement of automated sample analysis was observed for water and urine calcium samples extracted with ion exchange filters.

The cations were transported out of the soil and captured in the ion exchange medium.

Thus, the invention uses two different ion-exchange resins on each side of a porous polymeric support film.

CHEMICAL ANALYSIS OF CHROMIUM ORES. DETERMINATION OF LEAD . ATOMIC ABSORPTION SPECTROMETRIC METHOD AFTER SEPARATION ON ION-EXCHANGE RESIN.

METHODS: Ion exchange chromatography on CM-52 and ultrafiltration were used to separate AFU from crude extract of liver cancer tissue.

the production methods of low alcoholic liquor making include multiple filtration, ion exchange, absorption, distillation.

Ion exchange HPLC is an alternative that yields milligram quantities of purified plasmid DNA within an hour.

The characteristics of the channel were investigated using ion-exchange and pharmacological methods.

The ion exchange ability and adsorption ability of zeolite from coal fly ash(CFA) are analysis according to its spatial structure.

The essence of ion exchange chromatography is the electrostatic interactions between target protein and functional ligand in the adsorbent.

A suitable ion exchange medium was used to capture and subsequently recover the cations.

The principle, characteristics, application and development trend of ion-exchange fiber in absorbing heavy metal of sewage are introduced.

IONS SEPARATION IN LIQUID PHASE. POLYMERIC ION EXCHANGE MEMBRANES. CHARACTERISATION AND TEST METHODS OF HOMOPOLAR MEMBRANES.

Electrolytic recovery and ion exchange are used to recover silver from photo-processing wastewater.

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

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

UGRh2GT was purified by ammonium sulfate precipitation, hydrophobic interaction chromatography and ion exchange chromatography.

As the final stage in low density wastewater treatment system, ion-exchange method showed more advantages than some others.

The principle and method of producible anhydrous alcohol by the way of ion-exchange membrane electrophoresis are reported.

Water cleaning ion exchange resin, Pure water production equipment, Seawater desalination equipment.

Various system configurations are presented, and reflect a significant shift from ion exchange based systems to membrane based systems.

The ion exchange ability of the acylated weak base resin could be improved obviously by acid pickling.

The results show that the most speciation is residua and the least speciation is ion exchange.

The catalytic synthesis of dibutyl adipate with organic acid, inorganic salt, solid super-acid, ion-exchange resin, HPA etc. were reviewed.

But the ion exchange resin law is suitable lowly for the processing density the withdrawal big, contains the virulent metal waste water.

Comprehensive analysis showed that inorganic ion-exchange chromatography will be the main tendency of future 90Y generator preparation.

For each pair of amino acids, determine which will be eluted first from the ion-exchange column using a pH 7. 0 Buffer.

The FTIR, mechanical properties, moisture content and ion exchange capacity of membranes were investigated.

The polymers containing calixarene-based ion exchange resin will be widely applied in treating waste water containing poisonous metal ions.

gaining strong acid anode ion exchange fiber, strong base or weak base cathode exchange fiber, carboxylic acid anode exchange fiber.

In this study, the preparation of the NCS float single panel fire-resistant glass with ion- exchange means was studied.

The H(superscript ) and OH(superscript -) ions produced by water dissociation may self regenerate ion exchange resins.

Used ion-exchange filter element could be recycled by producer and no pollution will happen.

Unfortunately, the ion-exchange technique traps many more non-radioactive iron ions than radioactive cobalt ones.

The experimental results show that D-992 ion exchange resin has good adsorptive and desorptive performance and a good future.

The formation of the bone-like apatite was greatly affected by surface property and velocity of ion-exchange.

The mechanism of particle diffusion control for ion exchange process was determined by indirect judgment method.

Deactivation is not found during the ion exchange by using molten potassium nitrite.

Based on the analysis of a large amount of experiments, we developed a special glass material for ion-exchange technology.

There are solvent extraction, ion exchange, vacuum melting, vacuum distillation or sublimation, electro migration and regional melting, etc.

This text mainly generalizes about the ion exchange of the enamel caries progress and fluoride prevention and cure.

The maintenance of bipolar ion-exchange membrane electrolyzer during its operation is discussed.

And compared to fixed bed ion exchange process, the moving bed ion exchange process has relative superiority and value of promotion.

Ion exchange chromatography is a promising technique for boron isotopes separation.

Objective: Using organic membrane filtration and ion exchange to extract L-valine from the fermentation broth.

Degradation of lyophilized formulations was quantified using size exclusion (SEC) and ion-exchange chromatography (IEX).

A combination of ion exchange and electrochemical reduction for nitrate removal from drinking water.

The static electricity adsorption and the ion exchange adsorption for fluorine ion were achieved in the acidity solution.

The deterioration of ion exchange resin in boiler water treatment was analysed and the solving measurement was put forward.

The filtered solution is then passed through small beads of an ion-exchange resin.

Deionization removes ionizable minerals from tap water by passing the water through ion-exchange beds.

In this dissertation, we conducted a systematical research on the glass-based ion-exchange technology.

Ion exchange resigns pose various problems like poor thermal stability and low specific surface area.

The Deionized Water System shall include regeneration units for the ion exchange beds.

Influence factors and rules for adsorption and ion-exchange of ammonia nitrogen by zeolite were analyzed.

Anomalous point of refractive indices during ion exchange process was discovered.

The influence of polyethylene glycol on the aluminum hydroxide product in the process of ion-exchange membrane electrolysis was studied.

Either diatomite or ion exchange resin can be selected as regenerator according to customer's requirement.

The invention discloses a process for refining lecithin and cephalin from mixed bed ion exchange resin.

The applications of ion exchange resins in analytical chemistry were reviewed briefly in this paper.

Recent research and progress of ion exchange resin membrane (IEM) in soil testing were summarized.

They are removed more readily by chemical flocculation , activated carbon absorption and ion exchange .

Ion-exchange resin sells in market in form of filter.

Reverse osmosis in addition to the basic principle of salt, is to use the choice of ion exchange membrane through sex.

LC is mainly based on mechanisms of adsorption, mass distribution, ion exchange, size exclusion or stereochemical interaction.

The borosilicate glass was strengthened by using low temperature ion exchange method.

The nano-tubes can remove the surfactant through ion exchange then get alumina nano-tubes.

The phytic acid was extracted with delipid corn blastula by immersion, neutralization, acidification, ion exchange and evaporation.

It is used before ion exchange system as a means for pre-desalination and can extend the regeneration cycle of the ion exchange system.

A method for measuring the specific surface area and pore volume of ion-exchange resin by N_2 absorption apparatus is introduced.

APPLICATION OF SEPARATIONS ON ION-EXCHANGE RESINES. RESIN TYPES, COLUMN MAKING AND UTILISATION.

The operation of DeNora 29DD350 ion-exchange membrane electrolyzer during the production are summarized.

In view of reaction time, production cost and other factors, the ion-exchange resin method was regarded as the best technology.

preparing defibrase with ion-exchange chromatography.

There are airtight interlayer, gaseous diffusion carrier, and metal lead wire on two sides of ion exchange membrane.

The adsorption kinetics and adsorption isotherm of Ca 2 from sugar liquor by using ion exchange fiber were investigated in this paper.

And the relationship between time and substrate concentration in each compartment of ion exchange and current efficiency is discussed.

Zeolites are minerals with ion-exchange properties.

At present, the main method used in China in the production of potassium carbonate is ion-exchange method.

Questions met in the production of ion - exchange membrane caustic soda and the.

Recovery of uranium from liquors from shale attack by ion exchange.

In dynamic ion exchange, the IEC ofthe hollow fibre membrane increases as temperature rises.

Waste treatment by ion exchange produces a reusable water.

The article purified wheat esterase with the method of DEAE-52 Ion Exchange Chromatography.

The method of modified 13X molecular sieve by microwave composite ion-exchange was introduced.

In many medicinal products, ion exchange resins are used as taste-masked agents.

The design proposals of the sieve plate in bottom draining device of the ZLX-1200 ion exchange tower are introduced.

Generally, the natural cycle is shorter when the uranium ion exchange column is full, while the uranium ion exchange column is empty.

Chitosan and ion exchange resins can effectly decrease the acidity of kiwi wine.

This outer-surface adsorption is a kind of colloidal and ion exchange ads sorption.

Ion exchange is used extensively for the separation and purification of amino acids.

Through salting-out and CM-52 ion-exchange chromatography, the crude collagen was purified.

The situation of technology and use of domestic ion-exchange membrane electrolyzers is introduced.

First, Ag -Na ion exchange was run in nitrate melt . Then a electric field was applied.

To purify 4 kinds of pegylated pharmaceutical proteins, cation ion exchange chromatography was used.

The catalyst for synthesis of methylamine is made from mordenite which is pretreated and through ion exchange.

This paper summarizes the application and the development of ion exchange resin.

For example, L- isoleucine is separated by crystallization from a fermentation broth that has been filtered and subjected to ion exchange.

The stability of ion exchange resins is relatively poor and can not be used at high temperature for long term.

The research was made in fabrication and application of multimode waveguides using the Ag -Na ion-exchange technique in glass.

The application of carbon tubular filters in the primary refinement of brine used for the production of ion-exchange membrane caustic soda

Question of Rare Earth Complexes in Ion Exchange Separation and Extraction Chromatography

Preparation and characterization of a new pharmaceutical grade excipient: sodium polystyrene sulfonate-ion exchange resin

Determination of Heat Stable Salts in Amine Solution Used in Desulfurization by Electrodialysis-Ion Exchange Coupled with Ion Chromatography

Industry: Softened Water Equipment; Ion exchange equipment; Oxygen removal equipment; Water disinfection equipment; Desalination equipment;

Optimize the system design to ensure the running life of ion - exchange membrane

Evaluating the differences in extracting Levodopa between the ion-exchange resin method versus activated carbon adsorption method

Advancement of Ion Exchange Chromatography and Hydrophobic Interaction Chromatography Media Application in Protein Chromatography

Measurement of Ion Exchange Capacity and Rate of Calcium in Zeolite Used in Detergent by Ion Selective Electrode

Application Analysis of Using Ion - exchange Technology to Remove the Heat-stable Salt in Amine Solutions

Domestic ion-exchange membrane caustic soda coexisting with metal-anode diaphragm in the long term

Industry: Softened Water Equipment; Reverse osmosis equipment; Ion exchange equipment; Oxygen removal equipment; Water supply equipment;

The cause on conductivity increase of ion-exchange demineralized water and control measures

Detection of the suspending object content from second brine refining in ion-exchange membrane caustic soda production by spectrophotometry

A Study of the Environmental Safe Technology on the Production of Glycine by Ion-exchange Membrane

Industry: Sewage Treatment Plants; Sedimentation; Air Flotation; Reverse osmosis equipment; Filter; Ion exchange equipment;

Industry: Drinking water treatment equipment; Ion exchange equipment; Electrodialysis Equipment;

Industry: Sewage Treatment Equipment; Heat transfer equipment; Ion exchange equipment; Distillation equipment;

Separation of several aminoglycoside antibiotics with ion-exchange column following with pulsed integrated amperometric detection

Factors influencing the service life of ion exchange membrane and countermeasures against them

Industry: Other pharmaceutical equipment; Pressure filtration device; Filter; Membrane; Filter; Ion exchange resins;

Synthesis and characterization of porous crystalline indium sulfide and its ion exchange capacities for Cesium

Industry: Sewage Treatment Plants; Air Flotation; Aeration equipment; Softened Water Equipment; Ion exchange equipment; Filler;

Industry: Gas equipment; Energy-saving equipment; Sewage Treatment Equipment; Oxygen removal equipment; Ion exchange equipment;

Treatment of Electroplating Wastewater by the Combined Process of Chemical Flocculation Sedimentation-Sand Filtration-Ion Exchange

Domestic rectification technology matching bipolar ion - exchange membrane electrolytic device

Industry: Sewage Treatment Plants; Aeration equipment; Softened Water Equipment; Ion exchange equipment; Filter; Filter Media;

Industry: Heat insulation materials; Foam; Ion exchange resins; Throttle; Flame retardant synthetic material; Inhibitor;

Microstructural study of spent ion exchange resin ASC cement-solidification matrix

Study of racetrack waveguide resonator filter fabricated by ion-exchange technique

Zr loaded waste ion-exchange resin used for fluoride removal

Application of Ion Exchange in the Treatment of Electroplating Waste Water Containing Heavy Metal and Its Development

Industry: Hydrochloric acid; Sulfuric acid; Single alcohol; Pyrimidine; Polyurethane resin; Ion exchange resins;

Determination of trace tantalum in stone coal slag with flow injection-ion exchange separation and preconcentration-spectrophotometry;

Industry: Polyamide resin; Phenolic resin; Unsaturated polyester resin; Ion exchange resins; Sulfide; Portland;

Analysis of factors influencing the quality of liquid ion-exchange membrane caustic soda and its improving method

Atomic Absorption Spectrometry Determination of Trace Manganese in Mineral by Separation and Pro -concentration with ion exchange process

Ion-Exchange Chromatographic Behavior and Characterization of Staphylococcus aureus in Exponential Phase

Series Ammonia Extrication Ion-exchange Treatment in Equipotential Waste Mother Liquor of Monosodium Glutamate Production

Industry: Manganese oxide; Hydrochloric acid; Sulfuric acid; Other inorganic; Ion exchange resins; Chemical Agents;

Assessing nutrient supplying characteristics of slow - release - compound fertilizer by ion exchange resin membrane

Industry: Phenolic resin; Unsaturated polyester resin; Ion exchange resins; Other synthetic resin; Alkanes; Olefin;

The Automation Control System and Software Development for Ion Exchange Membrane Caustic soda Producing Device by Naturalness Circularly Way

Application of falling - film evaporators with double - effect, counter- current on evaporation of ion - exchange membrane caustic soda

Optimization of the technology of treating copper-containing wastewater from printed wire board by ion exchange process

Industry: Iron oxide; Titanium oxide; Sewage Treatment Plants; Ion exchange equipment; Air Flotation; Water supply equipment;

Isolation and Purification of Ribosome-Inactivating Proteins from Bitter Melon Seeds by Ion Exchange Chromatographic Columns in Series

Determination of Potassium and Sodium in High Purity Tungsten Powder by Ion-Exchange Chromatography-Flame Atomic Emission Spectrometry

Determination of Organic Acids in Cosmetics by Ion-exchange Chromatography Suppressed Conductivity Detection

Industry: Phenolic resin; Acrylic; Unsaturated polyester resin; Ion exchange resins; Amino resin; Silicone Resin;

Discussion on the application of ion-exchange technology in the fire-resistant oil quality improvement

The comparison of two sets of chlorine gas treatment system for ion-exchange membrane caustic soda facility

Study of Separation of Vanadium from Ammonium Molybdate Solution by Ion Exchange

Selection of large-scale bipolar type ion-exchange membrane electrolyzer and its running status

Electrochemically switched ion exchange properties of electrodeposited nickel hexacyanoferrate thin films

Simultaneous analysis with ion-exchange chromatography for the contents of organic acids and inorganic anions in green tea

Prediction-Verification Method Determining the Refractive Index Profile for Ion-exchange Planar Waveguide

Highly Efficient Separation of Proteins Using High Performance Ion Exchange Membrane Chromatography

Comparison of production technology and investment of diaphragm caustic soda with those of ion-exchange membrane

Industry: Ion exchange resins; Amino resin; Acrylic; Other polymers; Epoxy resin; Unsaturated polyester resin;

Industry: Ion exchange resins; Acrylic; Amino resin; Unsaturated polyester resin; Phenolic resin; Epoxy resin;

Ion Exchange Preconcentration Technique in Capillary Zone Electrophoresis

Discussion on the Recovery Rate of Tungsten in Production of APT by Ion-exchange Technique of Hydrometallurgy

Reasons for forming pinholes and cracks in ion-exchange membrane and their effects as well as patching-up skills

Determination of Mononucleotides in Extraction Product of Chlorella by Ion Exchange Chromatography

Application of glass - fibre - reinforced plastics equipment in ion -exchange membrane engineering

Industry: Ketone; Chemical fiber; Chemical Processing; Chemical Agents; Ion exchange resins;

Determination of Ru in Geological Sample by Polarography after Seperation and Preconcentration Using Ion Exchange Resin

Structural features of packed moving-bed ion-exchange equipment and calculation of lectotype for uranium extraction process

Research on Pretreatment of Polyvinyl-alcohol Desizing Wastewater by Ion-exchange Membrane Electrolysis

Influence of cell homogenization on interactions between biomass and adsorbent in expanded bed ion-exchange adsorption

Industry: Epoxy resin; Polyurethane resin; Urea-formaldehyde resin; Acrylic; Ion exchange resins;

Adsorption, Ion Exchange And Catalysis: Design Of Operations And Environmental Applications

Industry: Process raw materials; Ion exchange resins; Integrated companies; Trade Advisory;

Summary of indigenous ion exchange resins used in water treatment of thermal power plants

Determination of trace tantalum in stone coal slag with flow injection- ion exchange separation and spectrophotometry

Study on the Effects of Material from Determination of Aluminum Oxide Components in Ion-exchange Membrane Caustic Soda on Standard Curve

Characterization of Ralstonia solanacearum in different growth phases by high performance ion exchange liquid chromatography analysis

Thermodynamic study of adsorption of catechin on ion exchange fiber

Flame Atomic-absorption Method Applied to Determination Content of Ion of Iron in Ion-exchange Resin

Reformation of the control system in expanded reproduction for ion-exchange membrane caustic soda

An experimental study of Pb-feldspar synthesis by ion exchange reaction

Preliminary isolation of opioid antagonist peptides from rice bran protein by ion-exchange chromatography;

The reformation of chlorine treatment facility in the expansion of ion-exchange membrane caustic soda production facility

On a Study of Waste in EMM Production in Electrolysis Way-Ion Exchange Film

Determination of the solubility product of lead chloride by ion-exchange chromatography

The Limiting Current Density in the System of Ion-exchange Membrane and Ammonium Sulfate Solution

Study of Adsorption of Gentamycin on Carboxylic Ion Exchange Fiber

The Application of Ion Exchange Membrane Electrolysis Technology on Nonferrous Metallurgy

Industry: Other hydrocarbons; Polyamide resin; Acrylic; Ion exchange resins; Amino resin;

Microscale Experiment Research on Ion Exchange Meterage Solubility Product Constant

Lime and soil interaction can be divided into four categories : First, ion exchange;

Determination of ammonia in secondary brine for production of ion- exchange- membrane caustic soda by gas sensing electrode

A Study on Peak Compression Effect in Ion-Exchange Capillary Electrochromatography with Relaxation Theory

Industry: Ion exchange resins; Specialty Plastics; Specialty Plastics;

Maintenance and administration of ion - exchange membrane electrolyzer

Electrode Selection for Oxidation of Cerium by Cation Ion-exchange Membrane Electrolysis in Sulfuric Acid Solution

A simple ion-exchange resin procedure for extracting plant-available elements from soil

Determination of trace silver by flow injection on-line ion exchange coupled with flame atomic absorption spectrometry

hollow fibre; ion-exchange membranes; diffusion coefficients. ;

Modular construction of chelating resin towers in electrolysis systems of ion -exchange membrane caustic soda

Dynamic Characteristics of Potassium Release from Controlled Release Fertilizer by Using Ion Exchange Resin Membrane

Industry: Polyurethane resin; Acrylic; Phenolic resin; Epoxy resin; Ion exchange resins;

Preparation and Fundamental Characteristics of Spherical Lignin-Based Ion Exchange Resin

Retrofit of the Medium Drain Tanks of a Mixing Ion Exchange Unit

On-Line Determination of Trace Amounts Cu, Zn and Pb in Wolfram Ore by Flow Injection Ion Exchange-Flame Atomic Absorption Spectrometry

Study of Protein Drug Separation by A New Type Ion Exchange Column

Industry: Mixer; Sanding machine; Chemical Plants; Ion exchange resins; Ketone; Other oxides;

Separation and purification of corn Anti-hypertension peptides by ion exchange chromatography

Separation and Purification of Recombinant Human Serum Albumin by Ion Exchange Chromatography

High Speed Separation and Quantitation of Ralstonia solana-cearum of Different Virulence Using High Performance Ion Exchange Chromatography

Preparation of Ag-carrying Zeolite AntimiCrobial with Ion Exchange Method and the Study of Its Properties

Standard Practice for the Ion Exchange Separation of Uranium and Plutonium Prior to Isotopic Analysis

The Effects of Post-Peak Retrograde Ion-Exchange and Net Transfer Reactions on the Calculated Temperatures and Pressures

Separation and Analysis of Animal Intestinal Flora by High Performance Ion- exchange Chromatograph

Determination for particle size range, effective size and uniformity coefficient of ion exchange resins

Application of Ion Exchange Membrane in Electroplating Wastewater Treatment

Synthesis of dichlorobenzidine hydrochloride using an ion exchange membrane

Industry: Ion exchange resins; Other sewage treatment equipment; Chemical Plants;

Preparation of high purity pancreatic kininogenase by ion-exchange chromatography

Ion - Exchange Resin and Its Application to Wastewater Treatment

Treatment of regenerating wastewater of ion-exchange resin in electric power plant with catalyzed oxidation

Reduction of ferric iron in titanium sulfate solution by the ion-exchange membrane primary cell method

Reasons for blockage of the inlet flexible pipe of ACI bipolar ion-exchange membrane electrolyzer

Operation failures of key equipment for production of ion - exchange membrane caustic soda and their handling

Studies on the discharge performance of organic synthetic ion exchange membrane fuel cell of synthetic phenol;

Purification of Soluble-Antigen From Bovine Retina by One-Step Ion Exchange Chromatography

Studies on the Ion Exchange Adsorption of Carboxyl-pyridine-containing Amphoteric Ion Exchange Fibers

Development and application of emergency shut-down device in ion-exchange membrane caustic soda production

Experiment Study on Treatment of Acidic Underground Water Containing Heavy Metals by Ion Exchange Process

Determination of Trace Gold in Rock Salt Samples with Ion Exchange Separation and Enrichment Polarography

Regeneration of High Performance Ion Exchange Chromatographic Column in Protein Separations and Purifications

Selection of Determination Conditions of Ester by saponification-ion Exchange Process