The 10,000-ton industrial demonstration unit built with patented glycerol epichlorohydrin technology developed by Prof. Shan Yuhua of Changzhou University was recently put into operation at Hebei Haoao Glycerol Chemical Co., Ltd., and the product quality exceeded the national standard for superior grades. Sodium tungstate is colorless crystal or white orthorhombic crystal, lustrous flake crystal or crystalline powder. Sodium tungstate is soluble in water, slightly alkaline in aqueous solution, insoluble in ethanol and slightly soluble in ammonia. Weathered in the air. When heated to 100°C, it loses crystal water and becomes anhydrous. It reacts with strong acids (except hydrofluoric acid) to form water-insoluble yellow Tungstic Acid, reacts with phosphoric acid or phosphate to form phosphotungstic heteropolyacid complexes, and reacts with organic acids such as tartaric acid, citric acid, and oxalic acid to form corresponding organic acid complexes compound. Sodium Tungstate,Sodium Tungstate Dihydrate,99.5% Sodium Tungstate,High Purity Sodium Tungstate Jiangsu Lucky Metal Materials Co., Ltd. , https://www.luckymetalmoly.com
The device couples the chlorination of glycerol with the hydrolysis of phosphorus trichloride, and is designed to produce 10,000 tons of epichlorohydrin and 7,500 tons of crystalline phosphorous acid per year. Its production process adopts the patented technology of pipeline chlorination and special catalysts. The reaction time is short, the product yield is high, the operation is convenient, the energy consumption is low, and the process is stable. Compared with the existing glycerol epichlorohydrin industrial technology, Advantage.
The coupling process takes renewable resources glycerol and by-product hydrogen chloride as raw materials to achieve the utilization of by-products to achieve energy-saving emission reduction and clean production. The use of this technology to replace the traditional high-contamination propylene method has great economic and social benefits.