What are the uses of ammonium hydrogen fluoride？

What are the uses of ammonium hydrogen fluoride？

Ammonium hydrogen fluoride is very effective. Limestone and dolomite are commonly used to introduce magnesium oxide and calcium oxide.

Light soda can be used in chemical production of sodium silicate, baking soda and borax. In the metallurgical industry, used as a flux for steelmaking and antimony smelting, as a flotation agent for desulfurization and beneficiation; In leather industry, it is used for degreasing leather and neutralizing chrome tanning to improve the alkalinity of chrome tanning solution. Heavy soda is mainly used to make glass; Soaps can also be made by reacting fatty acids with soda ash; In the chemical industry, sodium salts, metallic carbonate bleaching agents, fillers, detergents, catalysts and dyes are prepared.

Mineral sources of Al2O3. Sandstone is a hard and dense rock cemented by timely particles and viscous materials under the action of geological high pressure. According to the nature of viscous material, it can be divided into viscous sandstone, arkose sandstone and calcareous sandstone. Therefore, the composition of sandstone depends not only on timely particles, but also on the type and content of viscous materials. Sandstone.

According to the actual water quality, Bian Xiao suggested using three-effect evaporation device to treat sodium fluoride wastewater. The equipment adopts 24-hour continuous feed in and out system operation, the average wastewater treatment capacity is 0t/h, three-effect evaporation device rated evaporation capacity ≥0.95t/h; Steam consumption ≤ 0.4t/h.

The use of ammonium hydrogen fluoride is effective and the physical properties of aluminum fluoride are affected. In terms of physical properties, electrolytic production requires aluminum fluoride with coarse particle size, good current performance, fast melting and uniform mixing with electrolyte. At present, in the production of large prebaked cell, aluminum fluoride is transported in super dense phase, so it must have good fluidity. In addition, due to the use of fixed point timing of the middle blanking, after adding the need for rapid melting and uniform mixing, conducive to the smooth electrolytic reaction. As can be seen from the table, keeping a low electrolytic temperature in electrolytic production can reduce the production of hydrogen fluoride, which is conducive to maintaining the concentration of aluminum fluoride in the electrolyte and reducing its loss. In the process of aluminum electrolysis, with the increase of electrolysis temperature, the hydrolysis reaction of aluminum fluoride becomes more intense, and the conversion and yield are also higher.

A brief history of discovery After The German merchant Bertrand discovered that phosphorus was produced by the German chemist Kunkel, the English chemist Boyle also produced phosphorus. He was also an early chemist who studied the properties and compounds of phosphorus. "White smoke is produced by the combustion of phosphorus," he wrote in his 1682 paper "New Experiments on Observed Cold Light." "The solution produced by the interaction of white smoke with water is acidic." Among them, white smoke is phosphoric anhydride (phosphorus dioxide), and the solution produced by reaction with water is phosphoric acid, but he did not do further research on phosphoric acid.

"Crystal dehydrating method", also known as mother liquid circulation method, is in sodium metasilicate solution to add crystal seeds or reduce the temperature of mother liquid for crystallization, and then centrifugal dehydration, and then dynamic drying, screening, powder products. This method is difficult to mass produce, but the product has good appearance and fluidity, and the physical and chemical indexes can meet the requirements of HG/T2568-94 standard. The method of "crystallization pulverization" is to concentrate the sodium metasilicate solution to the required concentration, and guide the solution to crystallize into massive solid by adding crystal seeds and additives. The free water is converted into crystal water, and the solid is crushed to get the finished product. This method has the advantage of being small.

The application of ammonium hydrogen fluoride is introduced. If you need to purchase ammonium hydrogen fluoride, you can contact us.