The production of boron chemicals Business Articles | August 6 Cheap Chris Archer Jersey , 2013 In a narrow sense, boron chemicals are generally referred to the process of the boron-containing minerals, the industrial production activities of preparing borax, boric acid.?
In a broad perspective, boron chemicals refer to the mining and processing of boronresource (borax, boric acid, boron powder, calcium borate and other primary products production) Cheap Jung-ho Kang Jersey , deep processingof primary borides, including a variety of special boron chemicals, fine boroncompounds, the production of boron-containing new materials. y groups ester type complex ions. Aqueous solution has weak bactericidaleffect, a small amount showing a gentle physiological role, a large dose cancause shock then affect the central nervous system.
Produceborax methods include acid Cheap Willie Stargell Jersey , ordinary pressure alkaline hydrolysis, carbon alkalineand water leaching solution method. Among them, the ordinary pressure alkaline hydrolysis is suitable for processing aschariteand boron sodium solution mining, carbon alkaline method is suitable for treatinglower grade ascharite, water leaching solution method is suitable for handlingnatural borax mines. Currently is mainly used carbon alkaline method.
Themethod of producing boric acid by treatment method can be divided into one-stepand two-step method. One-step method is used inorganic acids directly treatboron-containing mineral. Of which including sulfuric acid, hydrochloric acid,nitric acid method. At present, Chinese boron acid industry is mainly used sulfuricacid method. Two-step method is based on sulfuric acid Wholesale Pirates Hats , hydrochloric acid,nitric acid treat industrial borax (decahydrate borax or borax pentahydrate) toprepare boric acid, wherein the sulfuric acid method was an earlier productionprocess adopted in China.In recent years, nitric acid treating borax decahydrate and borax pentahydrate toproduce boric acid, the nitrate method process of sodium nitrate developedrapidly and has become China''simportant two-step process for boric acid.
Sulfuricacid as decomposers treating boron minerals one step process, the advantage is maturetechnology, the process is simple, less investment in equipment Wholesale Pirates Hoodies , easyoperation. Therefore, has long been subject to people''s attention. But thereare also requirements for higher grade, not suitable for processing low-gradeboron; serious corrosion of equipment; product quality control in largerlimitations, boron with low yield. Lack of reliable liquor utilization method, havegreater impact on environment and other disadvantages.
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