Search results for keyword: ammonia
Preparation of ammonium metatungstate
文章： Ammonium tungstate is a chemical compound with its chemical formula being (NH4)2WO4. It is an inorganic compound composed of ammonium and tungstate ions. Such compounds are considered to be important compounds in many industries such as ceramic, pharmaceutical, and dye production businesses ......
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Preparation of ammonium perrhenate
The Production of Ammonium Perruthenate
Ammonium perruthenate is a key chemical component commonly found in laboratories. It is used as an oxidizing agent, reagent, and fertilizer, and is a major component of many chemical processes. The most common uses of ammonium perruthenate are to purify dri......
Selenium Extraction by Alkaline Earth Metal Chlorination
Selenium Extraction from Soil by Alkali Metal Chloride
Selenium is an essential micronutrient for human and animal health, however, it is also a contaminant of soil and water due to industrial activity. Selenium can be extracted from soil using alkali metal chloride. This method is relatively sim......
Lithium Extraction by Sulfuric Acid
Lithium Extraction by Sulfuric Acid
Lithium is an important resource for a variety of applications, including batteries, optical lenses, medicine, electronics, and more. As a result, having efficient methods of lithium extraction is important, especially in terms of economic viability and sustain......
Ammonium paratungstate hydrogen reduction
ammonia Hydrogen Reduction
Introduction
The ammonia Hydrogen Reduction (AHR) is a chemical process used to reduce nitrogen in the atmosphere with hydrogen. This process has been used as a form of air pollutant control since the 1960s, and in the recent decades, has become a more efficient, cost-......
Scheelite Sodium Carbonate Hydraulic Boiling Decomposition
Abstract
Sodium carbonate and tungsten ore are dissolved in water at high temperature and pressure in order to produce tungsten carbide. This process, called hydrothermal decomposition, produces a mixture of sodium carbonate and tungsten carbide in solution. In this experiment, sodium carbonate w......
Nickel alloys resistant to crevice and phosphoric acid corrosion
Nickel Alloy Resistant to Crevice Corrosion and Phosphoric Acid Corrosion
Introduction
Nickel alloy is a type of alloy material composed of nickel as the base element, chromium and various other alloying elements. It has excellent properties such as heat resistance, corrosion resistance and high ......
Rhodium powder in precious metal materials
Ruthenium powder
Ruthenium is a chemical element with the symbol Ru and atomic number 44. It is a rare transition metal belonging to the platinum group of the periodic table. Ruthenium is usually found as a minor component of platinum ores; it is usually extracted as a by-product of platinum and p......
Gold Extraction from Pyrite Cinder
Introduction
Pyrometallurgical processes such as smelting, roasting and calcining are used to extract valuable metals from ores and other sources. The process of pyrometallurgy is widely known for extracting gold from its ore and is typically done in two stages. Initially, the ore is roasted or h......
Silver extraction from zinc smelting slag
Recycling Zinc Residues to Produce Silver
Zinc is a metal used in a variety of applications, ranging from automotive parts to consumer goods. To produce zinc, the metal is refined from ore and then processed into a number of different products, such as electrical wiring, pipes, and rods. Along th......
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