Boron – Preparation
The sodium metaborate first obtained is by decomposing the magnesium borate solution with concentrated alkali, then crystallizing NaBO2 solution in strong alkali, making it dissolve into water to make a concentrated solution. Adjusting the alkalinity of the solution by passing CO2 will concentrate the crystallization and obtain sodium tetraborate. Adjust the acidity of the sodium tetraborate solution with sulfuric to precipitate crystals of boric acids with low solubility. After heating, boric acid dehydrates to produce borontrioxide. Then, after drying, crude-boron is obtained through reducing B2O3 by magnesium or aluminium. The crude boron undergoes three different treatments: hydrochloric, sodium hydroxide and hydrogen fluoride. This results in brown amorphous, 95-98% pure boron.
By hydrogen reduction, you can make monomeric, pure boron. You pass a mixture of hydrogen with borontribromide through the wire. After heating the wire to 1500K by electric heat, the borontribromide will be reduced by the hydrogen.
You can also obtain boron by heating magnesium or aluminum powder and reducing boron dioxide.
Use of boron for industrial purposes
Boron, a chemical raw-material mineral, has a variety of uses. It is primarily used to produce borax, boric acids, and boron as well as the elemental boron. It is widely used in metallurgy as well as building materials, electrical appliances and chemicals, light-weight wool, nuclear industries, medicine, agriculture and other sectors. Important raw materials. Boron is used in more than 300 products. Glass, ceramics, detergents, and fertilizers for agriculture are some of the major uses.
Elemental Boron is used for a variety of purposes, including as a good reducing, oxidizing, and brominating agent. Other uses include blending materials of organic syntheses, high voltage, high frequency electricity, plasma arc insulation, and transmission windows of radar.
Boron The boron element is found in trace amounts of alloys. When combined with plastics or aluminum alloys it can be used to shield neutrons. Boron-containing additives improve sintering, which is important in the metal industry. The quality of ore can reduce the melting point and reduce the expansion. It also improves strength and hardness. Boron and its derivatives are also used in metallurgy as co-solvents and a raw materials for the production of boron-iron boron steel. The addition of titanium boride or lithium boride to building materials and heat-resistant alloys can produce these compounds. Borates, borides, and other borates are essential components in enamel, ceramics, glass, and ceramics. They can be used to improve the surface finish and gloss of a product.
Zinc borate may be used to create fireproof fibers. It’s a good fire retardant. It can also be used for bleaching or mordant dying. In fabric bleaching, sodium metaborate can be used. Additionally, boron compounds and paint desiccants can be used to make soldering and wastewater treatment agents that contain mercury in the paper industry.
Boron can be found as a trace in quartz. How to reduce as much boron in the purification process for high-purity, quartz sand becomes the key process. The presence of Boron reduces quartz melting point and decreases the number uses of the quartz crucible. This increases production costs of monocrystalline Silicon.
China has abundant boron-ore resources but boron-ore products cannot meet domestic construction needs. Domestic borax production was around 400,000 tons in 2007, imported boron-ore products were about 648.700 tons. This shows a high dependence on imports.
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