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Bisphenol A polycarbonate of bisphenol A quality purchase wholesale sales Shanghai Lin Yan and Trade

Bisphenol A polycarbonate of bisphenol A quality purchase wholesale sales Shanghai Lin Yan and Trade
Bisphenol A polycarbonate of bisphenol A quality purchase wholesale sales Shanghai Lin Yan and Trade
Bisphenol A polycarbonate of bisphenol A quality purchase wholesale sales Shanghai Lin Yan and Trade

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Company:Shanghai Lin Yan Ltd.
Information Name: Bisphenol A polycarbonate of bisphenol A quality purchase wholesale sales Shanghai Lin Yan and Trade
Update Time:2015-04-29
Validity:99999
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Price Description: RMB/
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Industrial production of bisphenol A, phenol and acetone are generally used as raw materials in acidic media catalytic condensation system. Usually sulfuric acid, hydrochloric acid, or a strong acid cation exchange resin as catalyst. The three processes, the sulphate process are out of hydrochloric acid and ion exchange resin have their own characteristics. However, due to the ion exchange resin method rarely pollution, is the future mainstream of bisphenol A production process development. Bisphenol A production process of ion exchange resin method first proposed by the American company Union Carbide industrialization in the early 1960s. The process is based on the characteristics of a strong acid cation exchange resin as catalyst, mercapto compounds as co-catalyst, phenol and acetone by molecular ratio of 10: 1 ratio into the reactor, the reaction of bisphenol A at 75 ℃, the product was distilled off In addition to the low boiling point components evacuation crystallizer, separation and purification by cooling crystallization. This method is low investment costs, in the synthesis reaction with cation exchange resin as a catalyst, can be saved resistant to hydrochloric acid or nickel-based alloy glass lined lining. At the same time washed with phenol, with no additional other agents. Recrystallized fine adduct slurry separator used in pure fresh phenol washed their liquor as the first washing liquid crystals, the mother liquor is treated after its return to use. Thus, in this process, containing only phenol, acetone in a small amount of low water, reducing waste water treatment. In addition, solid waste, waste gas as fuel in an internal process, without additional treatment. The law is the continuous process, open parking convenient, high and stable product quality, operating flexibility, the same device can produce different levels of products. The downside is that the ion exchange resin filled with big-time, one-way conversion of acetone is low, to be equipped with acetone recovery. Advantage of ion exchange resin method is non-corrosive, very few pollution, easy to separate the catalyst, high product quality, simple operation, but expensive catalysts, feedstock phenol demanding. In recent years, most new plants abroad using this method, domestic Wuxi Resin Factory in the late 1980s, the introduction of devices from Poland have also adopted this method of production of bisphenol A, narrowing the gap with the world advanced level, to solve the case of the epoxy development difficulties on the raw material to make homemade epoxy gain a foothold in the fierce market competition. Chemical properties of white needle crystals or flakes. Microstrip phenol odor. Soluble in ethanol, acetone, ether, benzene and dilute alkali, slightly soluble in carbon tetrachloride, almost insoluble in water. 
Contact Detail
Company Name: Shanghai Lin Yan Ltd.
Employee Number:
Annual export:
Year Established:
Contact Person: Mr. Young key(Marketing Specialist Marketing)
Telephone Number: 021-60956895-804
Company Address: 1209 No. 915 True North, , Shanghai, China
Zip/Postal Code: 200333
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