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[Know Tungsten] Tungsten Compounds Used As Raw Materials to Manufacture Chemical Products

Category: Tungsten Audio
Published on 01 June 2018
Hits: 1006
tungstic acid picture

Tungsten compounds such as sodium tungstate, ammonium tungstates, tungsten oxides or tungstic acid are commonly used as raw materials to manufacture chemical products. The following list gives a few examples.

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[Know Tungsten] Chemical Applications of Tungsten in the Form of Catalysts

Category: Tungsten Audio
Published on 01 June 2018
Hits: 948
tungsten in form of catalysts picture

In chemical processes, catalysts are used to modify the mechanisms of chemical reactions. By providing an energetically favorable pathway, catalysts accelerate reactions which would normally be too slow or would not even take place.  After the reaction, the catalyst remains essentially unchanged.

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[Know Tungsten] Tungsten Concentrate Decomposition Method – Nitric Acid

Category: Tungsten Audio
Published on 30 May 2018
Hits: 674
tungsten concentrate decomposition method - nitric acid image

Calcium tungstate reacts with nitric acid chemical formula:

CaWO4(S)+HNO3=H2WO+Ca(NO3)2

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[Know Tungsten] Tungsten Ore Decomposition Method – Hydrochloric Acid

Category: Tungsten Audio
Published on 29 May 2018
Hits: 659
HCL decomposition method image

Hydrochloric acid is the main method to process tungsten scheelite, chemical formula of reaction between calcium tungstate and hydrochloric acid:

CaWO4+2HCI=H2WO+CaCL2

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[Know Tungsten] Tungsten Ore Decomposition Process – Sodium Hydroxide

Category: Tungsten Audio
Published on 22 May 2018
Hits: 588
tungsten-ore-decomposition-process-sodium-hydroxide-image

Sodium hydroxide is the main agent for tungsten ore decomposition process. Tungsten concentrate has high purity, can be easily decomposed, so use NaOH is easy and environmental friendly. So NaOH plays an important role in tungsten ore decomposition process.

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[Know Tungsten] Separation of Tungsten and Molybdenum in Tungsten Concentrate

Category: Tungsten Audio
Published on 02 May 2018
Hits: 595
separation of tungsten and molybdenum in tungsten concentrate image

Tungsten and molybdenum are accompanying elements in tungsten mine. However, in tungsten concentrate beneficiation, its hard to separate them because they are similar element, both belong to VIB clan in periodic table of elements.

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[Know Tungsten] Tungsten Concentrate Gravity Separation – Roll Crusher

Category: Tungsten Audio
Published on 28 April 2018
Hits: 592
tungsten concentrate gravity separation – roll crusher image

Roll crusher has advantages of big crushing ratio, low noise, simple structure, the crushed material is uniform in grain size, smart protection carrier and save. It is widely used in some tungsten mine in south of Jiangxi Province.

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[Know Tungsten] Phosphotungstic Heteropoly Acid

Category: Tungsten Audio
Published on 28 April 2018
Hits: 567
phosphotungstic heteropoly acid image

Phosphotungstic heteropoly acid is a kind of heteropoly tungstate, is also called keggin type phosphotungstic or dodecaphosphotungstic acid. It is a kind of solid strong acid, can be used as catalyst in organic catalytic reaction. It has excellent catalytic property.

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[Know Tungsten] Tungsten Concentrate Gravity Separation – Ball Mill

Category: Tungsten Audio
Published on 28 April 2018
Hits: 577
tungsten concentrate gravity separation - ball mill image

After artificial beneficiation, tungsten concentrate will enter gravity separation. In grinding and tungsten slime recovery process need fine grinding, the equipment is ball mill.

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[Know Tungsten] Tungsten Is Important for Electrical Contact Materials

Category: Tungsten Audio
Published on 26 April 2018
Hits: 585
tungsten contact picture

Tungsten is practically the only material used for electron emitters. Although other, more electropositive, metals would yield higher emission rates, the advantage of tungsten is its extremely low vapour pressure even at high temperatures.

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