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A Preparation Method of Ammonium Paratungstate Using Tungsten-contained Soft Waste Material 122

The researchers proposed a preparation method of ammonium paratungstate (APT) using tungsten-contained soft waste material. And the obtained APT can be directly used in the production of tungsten alloys or be applied as additives for chemical products. More details, please visit: http://ammonium-paratungstate.com/index.html A Preparation Method of Ammonium Paratungstate Using Tungsten-contained Soft Waste Material Put 900g of AMT leaching residue (WO3 content of 89.5%) in the reaction kettle and add 3600mL of 6wt% diluted ammonia water (molar ratio NH3: WO3=3.9), reacted…

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Preparation of Ammonium Paratungstate Using Tungsten-contained Waste Material 125

Researchers have proposed a method for producing ammonium paratungstate using tungsten-contained waste material, which has the advantages of short production process. Evaporated and crystallized waste ammonia gas and wastewater can be recycled and reused. And it significantly reduces emissions of waste gas and wastewater. Also, it improves the tungsten recovery rate. More details, please visit: http://ammonium-paratungstate.com/index.html A Method for Producing Ammonium Paratungstate Using Tungsten-contained Waste Material Step One: Acid leaching and removing impurities from tungsten-contained waste material (containing metal tungsten…

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How to Produce Ammonium Paratungstate Using Tungsten-contained Soft Waste Material? 152

How to produce ammonium paratungstate using tungsten-contained soft waste material? The researchers proposed a method for producing ammonium paratungstate using tungsten-contained soft waste material. The method has the characteristics of short process flow, low investment in equipment, high productivity and yield, low cost of recycling, and no waste liquid that pollutes the environment. More details, please visit: http://ammonium-paratungstate.com/index.html A Method for Producing Ammonium Paratungstate Using Tungsten-contained Soft Waste Material Step One: Mix tungsten-contained soft waste material with dilute ammonia water,…

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Recycling of Tungsten from APT Crystallization Mother Liquor 130

Why should tungsten in APT crystallization mother liquor be recycled? APT, or ammonium paratungstate, is an important intermediate product in the tungsten smelting process. More details, please visit: http://ammonium-paratungstate.com/index.html The classic ammonium paratungstate production process mainly includes the steps of ore decomposition, transformation to obtain crude ammonium tungstate solution, removal of impurities in crude ammonium tungstate solution, crystallization to obtain ammonium paratungstate and its crystallization mother liquor, and recycling of crystallization mother liquor. In other words, APT crystallization mother liquor…

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How to Recycle Ammonium Tungstate from Ammonium Paratungstate Crystallization Mother Liquor? 143

How to recycle ammonium tungstate from ammonium paratungstate crystallization mother liquor? The researchers proposed a process for recycling ammonium tungstate from ammonium paratungstate crystallization mother liquor. The purity of ammonium tungstate obtained by this method is high, and the production cost is effectively reduced. More details, please visit: http://ammonium-paratungstate.com/index.html A Process of Recycling Ammonium Tungstate from Ammonium Paratungstate Crystallization Mother Liquor Step One: Add 1.7kg of the theoretical amount of 300% phosphoric acid to the ammonium paratungstate crystallization mother liquor…

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How to Treat APT Production Wastewater? 119

How to treat APT production wastewater? There is a large amount of wastewater during the production process of APT (ammonium paratungstate). And the wastewater contains a large amount of magnesium sulfate, sodium sulfate and a small amount of heavy metal ions. So, it will cause serious pollution and waste of water resources if the production water is directly discharged without treatment. Then, how to treat APT production wastewater? More details, please visit: http://ammonium-paratungstate.com/index.html The researchers used the “neutralization + filtration…

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Tungsten Carbide Glass Cutter Applied for Cutting Window Glass 109

Tungsten carbide glass cutter applied for cutting window glass has the characteristics of good wear resistance, good thermal hardness (up to 900-1000 °C, maintaining 60HRC), high hardness (86-93HRA, equivalent to 69-81HRC), and its lifespan 5-80 times higher than high-speed steel. More details, please visit: http://www.tungsten-carbide.com.cn/tungsten-carbide-blade-bar.html The tungsten carbide material used in a glass cutter is sintered and formed, that is, the powder is pressed into a blank, and then heated into a sintering furnace to a certain temperature (sintering temperature),…

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Tungsten Carbide Glass Cutter Applied for Cutting Ornamental Glass 123

Tungsten carbide glass cutter has higher hardness than glass and is durable, sharp, and corrosion-resistant, so it is applied for cutting ornamental glass. In general, the hardness of glass is 6-7. It means that the hardness of the glass cutter is higher than 7. More details, please visit: http://www.tungsten-carbide.com.cn/tungsten-carbide-blade-bar.html Tungsten carbide cutting wheels have been proven to have a significantly longer life than steel cutting wheels and offer greater and more reproducible penetration in scoring as well as easier opening…

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Tungsten Carbide Glass Cutter Applied for Cutting Heavy Sheet Glass 154

Tungsten carbide glass cutter may be applied for cutting heavy sheet glass as it is usually made of YG5 and other grades of tungsten carbide with properties of high hardness, excellent wear resistance and long service life. And there is a layer of diamond coating or diamond-like coating on the surface of glass cutter to improve its hardness. More details, please visit: http://www.tungsten-carbide.com.cn/tungsten-carbide-blade-bar.html While large sheets of glass are usually cut with a computer-assisted CNC semi-automatic glass cutting table. These…

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Tungsten Carbide Glass Cutter Applied for Cutting Plate Glass 117

Tungsten carbide glass cutter is welcomed for cutting plate glass. And it is the tungsten carbide cutting wheel that plays a role of scoring a line on the glass, and then split it through mechanical stress along the line. The advantage of this method is that the processing method is simple, the glass can be effectively broken, and the cost is relatively low. More details, please visit: http://www.tungsten-carbide.com.cn/tungsten-carbide-blade-bar.html Matters need attention when you use a tungsten carbide glass cutter to…

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