ore

Metal ores are often found mixed with rock and dirt and are rarely pure enough to be processed straight away .

It is often found free in nature and also occurs in compounds and in mixed ores.

This system also can be applied to analytical works in biological, ores, chemicals, and other corrosion environment, with a good prospect .

A concentration process is important now that the depletion of high grade ores is possible.

Smashing equipment mainly used for aquaculture, pet feed, chemical products, medicines, activated carbon, ores and other materials.

Arsenic-bearing gold ore is one of the refractory gold ores . Its conventional cyanidation leaching rate is generally very low.

The author introduces the productive process of the technology practice soaked out with FeS_2 ores and MnO ores.

Spontaneous combustion of sulfide ores is one of the major hazards in safe mining of sulfurous ore deposits.

This ores points out a kind of each trade of of nation to who beneficial, even an each merchandise of national production is cheaper.

The invention provides an additive and a method for extracting vanadium by roasting stone coal ores, and a preparation method thereof.

The first series of certified reference materials of iron ores to which 15 certified values are assigned was prepared.

The partition of silver in ores is controlled by mineralization intensity, grain size and embedded form Of silver. . .

Gravity milling of ores is a very important way in physical mineral separation field. It is widely used and capable of managing.

Manganese ores. Determination of arsenic content. Spectrophotometric and volumetric determinations.

Copper ores are generally brightly coloured minerals which would be attractive as applied decoration.

The characteristics of orebody of deposit, mineralization, ores, ore genesis as well as metallogenic mechanism are discussed in this paper.

As an efficient machine for treating fine particle ores, flotation column has found wide applications in flotation process.

the two establish a formidable aerial scouting and combat team. Such ores are known as wind riders.

The invention relates to a floating and collecting agent of bertrandite beryllium ores and application thereof.

Iron ores. Determination of titanium content. Spectrophotometric determination.

Deep processing ability for manganese ores in Guangxi remains low though the ore reserves is taking first place in China.

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

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

CHEMICAL ANALYSIS OF CHROMIUM ORES. DETERMINATION OF PHOSPHORUS. SPECTROPHOTOMETRIC METHOD.

Chemical analysis of manganese ores . Spectrophotometric determination of titanium .

CHEMICAL ANALYSIS OF MANGANESE ORES. SPECTROPHOTOMETRIC DETERMINATION OF PHOSPHORUS.

disseminated ores, sulfides are also encountered as bands, reniform masses, and coatings associated with colloform textures.

CHEMICAL ANALYSIS OF MANGANESE ORES. SPECTROPHOTOMETRIC AND VOLUMETRIC DETERMINATION OF CHROMIUM.

The Meishan mirabilite ores are characterized by high Ca content, large mirabilite crystalline, shallow occurrence depth and giant reserves.

l: Plants which refine crude ores are often located in countries other than those in which the crude ores are mined.

Iron ores. Determination of phosphorus content. Molybdenum blue spectrophotometric method.

The acquisition of the ores and oil underneath African soil is more easily hidden from public view than that of the land above .

Iron ores. Determination of manganese content. Periodate spectrophotometric method.

CHEMICAL ANALYSIS OF MANGANESE ORES. SPECTROPHOTOMETRIC AND GRAVIMETRIC DETERMINATION OF NICKEL.

Test results show that the gravity-flotation combined flowsheet is an effective method for treating Sulfide-Oxidized Pb-Zn mixed ores.

CHEMICAL ANALYSIS OF MANGANESE ORES. SPECTROPHOTOMETRIC DETERMINATION OF VANADIUM.

The nature of a refractory gold ore in Guizhou was introduced. The technology for recovering gold from the ores was proposed.

Being carrier minerals, the gold ores from Henan Province contain pyrite universally, in which the gold is closely associated with pyrite.

Manganese ores. Determination of active oxygen content, expressed as manganese dioxide. Titrimetric method.

IRON ORES. DETERMINATION OF TITANIUM CONTENT. DIANTIPYRYLMETHANE SPECTROPHOTOMETRIC METHOD.

MANGANESE ORES AND CONCENTRATES. DETERMINATION OF ARSENIC CONTENT. SPECTROMETRIC METHOD.

The boron ores in different countries have different characteristics, which determine diverse production methods of boric acid.

It is applied for leaching of ores or concentrates and for the precipitation of metals or oxides from leach solutions.

The presence of sulphate ores flotation by potential regulation and control is discussed. The previous research results are summarized.

CHEMICAL ANALYSIS OF MANGANESE ORES. DETERMINATION OF COPPER, ZINC AND LEAD. ATOMIC ABSORPTION SPECTROMETRIC METHOD.

IRON ORES. DETERMINATION OF ARSENIC CONTENT. MOLYBDENUM BLUE SPECTROPHOTOMETRIC METHOD.

CHEMICAL ANALYSIS OF MANGANESE ORES. DETERMINATION OF IRON. ATOMIC ABSORPTION SPECTROMETRIC METHOD.

CHEMICAL ANALYSIS OF MANGANESE ORES. SPECTROPHOTOMETRIC DETERMINATION OF COBALT.

CHEMICAL ANALYSIS OF MANGANESE ORES. SPECTROPHOTOMETRIC DETERMINATION OF COPPER.

Manganese ores. Determination of lead content. Gravimetric determination.

MANGANESE ORES AND CONCENTRATES. DETERMINATION OF LEAD CONTENT. POLAROGRAPHIC METHODS.

BioleachIng, Involves the biological oxidation of copper present In these ores to produce soluble copper sulfate.

Iron ores. Determination of aluminium content. Flame atomic absorption spectrometric method.

Iron ores. Determination of hygroscopic moisture in analytical samples. Gravimetric and Karl Fischer methods.

It's the criminal bankers, the Wall Street hooligans, and their pathetic w#ores in WashingtonDC who are the parasites destroying the world.

CHEMICAL ANALYSIS OF MANGANESE ORES. POTENTIOMETRIC DETERMINATION OF MANGANESE.

Result shows that the microwave heating of laterite ores is a self-stable process, without the phenomenon of heat runaway.

The dwarfs came flocking around in little troops, leaving their work of digging out precious ores, eager for the ham.

Nearby, connected by a broad gravel road, is a gaping wound in the earth, a strip mine where metal ores for construction are extracted.

The developing process of the certified reference material for composition analysis of rare earth ores was introduced.

The method gave low determination limit and wider linear area. It was satisfied the demand of iron ores analysis.

Iron ores. Determination of silicon content. Reduced molybdosilicate spectrophotometric method.

meanwhile, many metal ores are precipitation of basin fluid consisting of water and dissolved ore-forming materials.

rocks of steady productive layer, good quality ores, widespread distribution, and rich amount of resource.

On this basis, reducing smelting of nickel-laterite ores roasted was investigated.

This technique opened up a suitable development way for exploitation of low-grade gold ores.

Chemical analysis of manganese ores. Determination of moisture content (on laboratory samples).

CHEMICAL ANALYSIS OF MANGANESE ORES. POLAROGRAPHIC AND GRAVIMETRIC DETERMINATION OF ZINC.

IRON ORES. DETERMINATION OF ALUMINIUM CONTENT. OXINE GRAVIMETRIC AND TITRIMETRIC METHODS.

IRON ORES. DETERMINATION OF COPPER CONTENT. FLAME ATOMIC ABSORPTION SPECTROMETRIC METHOD.

The metallurgical properties of several sinters and natural ores for Shuicheng Iron and Steel Co. , Ltd. were investigated.

Laterite ores can be approximately divided into two categories: the limonite and the humus soil.

The mineral processing efficiency of copper oxide ores is lower, which has influence on mine production profitability.

To recover iron from its ores, the oxides are reduced by heating together with coke and limestone.

Its output is based mainly on hundreds of small mines which have the flexibility to target higher-grade ores quickly when metal prices rise.

Iron ores. Spectrophotometric determination of vanadium.

Iron ores. Spectrophotometric determination of chromium.

CHEMICAL ANALYSIS OF MANGANESE ORES. GRAVIMETRIC DETERMINATION OF SILICON DIOXIDE.

CHEMICAL ANALYSIS OF MANGANESE ORES. DETERMINATION OF SULPHUR. COMBUSTION METHOD.

CHEMICAL ANALYSIS OF CHROMIUM ORES. DETERMINATION OF SILICA (GRAVIMETRIC METHOD).

This paper reports on the full scale tests of production of crystalline rare earth carbonates from low grade heavy rare earth ores.

A sample preparation method with filter paper for X-ray fluorescence spectrometric analysis of Fe, Cu, Pb, Zn in ores was achieved.

he wet metallurgy technologies for smelting copper sulfide, copper oxide and natural copper ores are reviewed.

Thought accepts performance which others thinking highly of is immodest ores arrogant and complacent.

The properties of imported ores at Guofeng Iron and Steel Co. , Ltd. (abbreviated by Guofeng) were studied by experiment.

Lead ore : British lead ores have been worked since pre- Roman times . It contains silver .

CHEMICAL ANALYSIS OF MANGANESE ORES. DETERMINATION OF ALUMINA, LIME AND MAGNESIA ATOMIC ABSORPTION SPECTROMETRIE METHOD.

Primary Au-bearing sulfide ores rich in organic carbon, clay, arsenic and copper are widely dispersed over west Shimian.

Iron ores. Spectrophotometric determination of nickel.

IRON ORES. DETERMINATION OF SULPHUR CONTENT. BARIUM SULFATE GRAVIMETRIC METHOD.

CHEMICAL ANALYSIS OF MANGANESE ORES. GRAVIMETRIC DETERMINATION OF BARIUM OXIDE.

Laboratory research on chemical leaching and bioleaching of the stored ores in gob from Shouwangfen Copper Mine are conducted.

CHEMICAL ANALYSIS OF CHROMIUM ORES. DETERMINATION OF IRON OXIDE. TITRIMETRIC METHOD.

Recent research activities on cobalt-containing ores and concentrates are discussed.

IRON ORES. DETERMINATION OF TOTAL IRON CONTENT. SILVER REDUCTION TITRIMETRIC METHOD.

Block ores in deposit has good quality and is easily chosed, which are good production materials in glass and pottery lines.

Good technical targets are gained by adopting the preferential flotation circuit on the properties of raw ores.

Lime is widely used in the beneficiation or recovery of non- ferrous metal ores .

A large portion of the work involves drilling and extracting oil and gas or mining of ores, stone, sand and gravel.

The portable metallic element analyzer can directly measure ores in fields, which is convenient to carry and use, and the accuracy is high.

The Inca Indians used it to carry metal ores from mines in the mountains.

At twilight or in cloudy weather, the co er-covered ores of old castles and churches lend the city a dream-like atom here.

Blending is the process of mixing different batches of ores for the purpose of adjusting the physical and chemical properties.

IRON ORES. DETERMINATION OF FLUORINE CONTENT. ION-SELECTIVE ELECTRODE METHOD.

The favorable parts for bonanza ores are beneath clay zones and adjacent to pyrite deposit or in depression and funnel.

IRON ORES. DETERMINATION OF ALUMINIUM CONTENT. EDTA TITRIMETRIC METHOD.

The rate of gold adsorption by carbon from leach liquor after cyanide leaching of roasted ores reached to 99. 91%.

Iron ores. Determination of silicon content. Gravimetric methods.

During mining of sulfide ores at non-coal mines , there are many spontaneous fire accidents due to ores with rich sulfide.

Poisnous and noxious substances in the imported iron ores must not bring or possibly bring harm to man and environment.

Poly-complex collector H907 for phosphate ores is developed by the mixture of polythene acetic ester and methyl sulfonate.

It was reported that trace amounts of arsenic in iron ores, spherical ores and sintering ores were determined by GFAAS.

Joy Global Inc. is a manufacturer and servicer of mining equipment for the extraction of coal and other minerals, and ores.

the released uranium is concerntated into ores along the tensile and tensor-shear fractures.

Aniline aerofloat is a superior collector for nonferrous metals sulphide ores.

The silver in ores occurs mainly as independent silver minerals around sulfides or in crack disulfide.

Plants which refine crude ores are often located in countries.

The cash deal, valued at around $9 billion, will supplement Vedanta's existing businesses in copper, zinc, aluminium and iron ores.

More giant bulk carriers will lower the prices of ores delivered to China and stimulate trade growth, they say.

China criticised the decision, justifying its limits on exports of metal ores and other materials on environmental grounds.

Iron ores. Determination of sulphur content. Combustion method.

It is iron-gray and fairly soft and ductile. Found in many ores, it is about as abundant as copper and three times as abundant as lead.

In this work, the feasibility of increasing proportion of lump ores in blast furnace was investigated.

IRON ORES. DETERMINATION OF WATER SOLUBLE CHLORIDE CONTENT. ION-SELECTIVE ELECTRODE METHOD.

The ores are all dominated by Cu with minor Zn, and the deposits are classified as the Cu type.

The basic principles of desilication of bauxite ores by reverse flotation are described.

Production of nickel from laterite ores has occurred for over 100 years beginning with processing of garnierite ores from New Caledonia.

used of powdery metals or ores; to cause to become a coherent mass by heating without melting.

These may provide some thermodynamic data for high-temperature oxidation pressure leaching of ores containing In2S3.

Widespread as the occurrence of uranium is, the ores are mostly very low-grade.

Several application cases for fine-grinding of Mo, Fe, Au ores by stirred mill were illustrated in this paper.

Iron -- and metal-concentrating bacteria create metallic ores.

The lead isotope study shows that ores of the Mujiazhuang copper deposit and the host rocks contain very high radiogenic lead.

Various " metasomatic textures" of ores were formed in diagenetic stage.

And also it is practicable that using high grade Panzhihua concentrates to replace part of import ores.

A geological prospecting engineer who had made a spectral analysis of ores discovered a new open-cut coalmine.

indicating that these sulfide ores and BIFs were relational to volcanic activity.

The imported ores generally had lower contents of main metal and couldn' t meet enterprise' s requirement for high-temperature ore.

The research orientation of separation of copper and molybdenum ores is put forward.

were processed and the results were compared with known gold deposit ores positions and geology.

IRON ORES PELLETS. DETERMINATION OF CRUSHING STRENGTH.

AML is specialized in all Manganese related business from Ores to Alloys, Metals and Chemicals.

A discussion is made on the beneficiation processes for different types of phosphorite ores and the beneficiation results.

Iron ores. Titrimetric determination of calcium.

Chemical analysis of manganese ores. Determination of lime.

Iron ores and concentrates, including roasted iron pyrites.

Imported iron ores were digested by microwave using (HCl HNO3 HF), The content of Arsenic in iron ores were determined using HG-AAS.

Ying Kou Port, which has a listed arm, mainly serves to export grain from Northeast China, and to import iron ores.

Their materials costs are largely governed by prices on world markets for fuels and ores.

A new cleaner hydrometallurgical flowsheet for recovering zinc from sphalerite ores was proposed.

The increase of cell depth is beneficial to the reverse flotation of bauxite ores.

Ore is very important. Each map provides different types of ores, to attack the ore can obtain the appropriate money.

The oxidation and self-heating mechanism of sulfide ores was summarized.

The Quarren were skilled miners, drawing precious ores from the ocean floors.

IRON ORES. DETERMINATION OF PHOSPHORE CONTENT. TITRIMETRIC METHOD.

IRON ORES. DETERMINATION OF SIZE DISTRIBUTION BY SIEVING.

After innumerable hardships, the prospecting team discovered a lot of new ores.

In order to develop new iron ore resources, pellets with the addition of two new imported iron ores were researched.

IRON ORES. DETERMINATION OF TUMBLER STRENGTH.

From the point of view of bacteriology , the authors discuss the nature and mechanism of bacterial leaching of sulfide ores.

However Xiazhuang ores is depleted in REE, especially depleted in LREE, and has higher U negative abnormality than the host rocks.

This regularity is used to guide the mining of oxidation ores with good economic effect.

It occurs in Uranium ores as a by product of nuclear decay.

This paper suggests a determination method of trace thorium in ores according to DBS-arsenazo and colour-reaction of thorium.

Ores from the old mine are already smelted, but those from the new mine are not.

The technology does not have exact demands on the raw ores and has good adaptability.

Sends all stone and ores without an adjacent transparent block as iron ore above height 20, diamond below.

Because of excavation sequence, high stress concentration occurs in the boundary ores, which leads to difficulty in mining of boundary ores.

is used only in war to deny recycling capabilities ores part of a profit ninjaing hit and run operation.

In particular, from 2004 to 2009, a rapid growth of imported iron ores resulted in a continuous rise in price.

The expectation of application prospects of zinc oxide ores' treatment technology is carried out.

Iron ores. Preparation of predried test samples for chemical analysis.

As a result, annealing will have significant effect on the processing properties of ores.

Coal, metallic ores, and other useful substances found in the earth, are still more limited than land.

These first samples are ores quizes. Notice that they vary in colour from white to pink to red.

Chemical analysis of iron ores. Determination of carbon dioxyde.

By self-cost and revenue comparison method, inferior limit of low grade ores is calculated as 1.

This mission would help astronauts and engineers learn how to process asteroid materials and ores in space.

Nonsulfide zinc deposits were usually mistaken as oxidation ores of zinc.

The partition of silver in ores shows grading with level.

a excavation in the earth from which ores and minerals are extracted.

China has some, but not much, and the ores tend to be low grade.

Gold ores here are brilliant and dazzling. After being smelt and processed carefully, they can turn into exquisite gold handicrafts.

A dwarf cleric declares a holy crusade against ores.

SAMPLING OF MANGANESE OR CHROMIUM ORES.

Telluride dominates the metal ore minerals, and more than 95% of gold budget in the ores occurs as telluride.

Bio-oxidation could liberate gold enclosed by sulfides, such as pyrite, arsenopyrite, etc. to allow the ores treated by heap-leaching.

Copper ores and concentrates.

There are metal ores in the rocks nearby and ice in the shadows of the crater below.

Test flow is simple and efficient test to handle the ores.

Sub jade Sub jade mean that is caught ores to degrade the malachite carried by the flowing water in the river originally.

This paper describes how to use the robot to realize on-line moisture determination for iron ores.

Unlike a refined product such as copper, iron ores vary widely in quality, with different levels of impurities and moisture.

A theoretical basis has been obtained to make further use of domestic iron ores and foreign ores.

Hides all ores and chests that don't have an adjacent transparent block.

The type of the ores of Bayinhanggai Gold Deposit is very singular, which is attached to lean sulphide quartz vein type Gold Deposit.

The fluorine in ores was determinated by fluorine ion selective electrode with the limit of 0.

Lead ores and concentrates.

Iron ores. Determination of copper content. 2, 2`-biquinolyl spectrophotometric method.

Crude mineral ores and crude oil must be purified before they can be used.

The mine is currently working toward a A$30 billion (US$30. 62 billion) expansion designed to tap these ores.

The gold resources in China and present status of pretreatment process of various refractory gold ores are reviewed.

Unexploited rare metal ores have a good perspective.

Point and originate in growing ores originally of the mountain.

The reserve is big. (4) Poor ores are many.

The extremely low grade iron ore in Hebei contains 15. 69% of TFe only, and iron ores mainly exist in magnetite (50. 16%).

Hadn't twined ores of silver and lead been found?

It showed from the study that a better leaching index can be achieved by adopting this process to treat such kind gold ores.

The ores of all three metals are plentiful, so it is easy to expand production.

That's an area rich in ores.

In pace with high-grade ores reduced, development of low grade ores, gangues and tailings becomes more and more important.

The basic flow and kinds of Iron Ores Flotation Reagent has been summarized.

It can cook the same things the furnace can smelt, including ores and other mod items.

Different kinds of ores were exploited to build factories.

We want to buy Bullion-Gold and Silver, Ores Tantalo, Gold, Amethyst, Crystal. Bullion-Gold and Silver.

Imports of all ores, slag and ash grew to $108 billion in 2010, from $25. 9 billion in 2005.

There are some five specimens of rocks and ores in the museum.

The computing result of the new model was good: there was great differential income gap between the different ores or zones;

Influence of Processing Method for the Determination Result of Ferromagnetism Content of Iron Ores

Changba the complex nature of lead-zinc ores, oxidation rate, sphalerite, galena and gangue fabric embedded close;

Progress of Looking for the Manganese Ores of Good Quality in the Area of Northeastern Guizhou and Its Prospects

Standard Test Method for Analysis of Ores, Minerals, and Rocks by the Fire Assay Preconcentration Optical Emission Spectroscopy

Manganese ores; Determination of chromium content; Diphenylcarbazide photometric method and silver persulphate titrimetric method

Predominant Factors Affecting the Explosive Effectiveness for Tantalum-Niobium Open-pit Ores and Its Modification Measures

The Experimental Study of Flotation on Improving Recovery of A Lead Ores

Biooxidation Pretreatment Technology for Refractory Gold Ores and Its Commercial Application

Chromium ores and concentrates; Determination of silicon content; Molecular absorption spectrometric method and gravimetric method

Aluminium ores; experimental determination of the heterogeneity of distribution of a lot

Study on Synthesis of a New Flotation Agent and Its Application in Copper Sulphide Ores

Manganese ores and concentrates; Determination of copper content; Extraction-spectrometric and spectrometric methods

New Concept of Iron Ores Sintering Basic Characteristics

Industry: Electronics manufacturing equipment; Body and accessories; Black metal ores; Light non-ferrous metals; Metal Packaging Machinery;

Electrochemical treatment of wastewater from flotation of phosphate ores and its recycling for processing uses

Analysis of aluminium ores - Chemical methods - Method for determination of phosphorus content: spectrophotometric method

Aluminium ores; Determination of phosphorus content; Molybdenum blue spectrophotometric method

Experimental investigation on comprehensive utilization of the residue from oxide copper ores ammoniac leaching

Manganese ores and concentrates; Determination of aluminium, copper, lead and zinc contents; Flame atomic absorption spectrometric method

Manganese ores and concentrates; Determination of calcium and magnesium contents; Flame atomic absorption spectrometric method

Manganese ores and concentrates; determination of hygroscopic moisture content in analytical samples; gravimetric method

Methods for chemical analysis of iron ores--The flame atomic absorption spectrophotometric method for the determination of cupper content

Manganese ores and concentrates; Determination of sodium and potassium contents; Flame atomic absorption spectrometric method

Analysis of aluminium ores - Chemical methods - Method for determination of titanium content: spectrophotometric method

Aluminium ores; Determination of total silicon content; Combined gravimetric and spectrophotometric method

Aluminium ores; experimental determination of the heterogeneity of constitution

Industry: Non-ferrous metal processing materials; Black metal ores; Meter; Fertilizer machinery; Voltage measuring devices;

Industry: Black metal ores; Relay; Rectifier, ballast; Motor; Refrigeration Equipment; Heat transfer equipment; Hammer, ax;

Manganese ores and concentrates; Determination of potassium and sodium content; Flame atomic emission spectrometric method

Methods for chemical analysis of iron ores--The potassium permanganate volumetric method for the determination of calcium content

Standard Guide for Preparing Certificates for Reference materials Relating to Chemical Composition of Metals, Ores, and Related Materials

Manganese ores and concentrates; determination of aluminium content; photometric and gravimetric methods