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Zhan Jianghong, Gong Tao: Modified polyester prepared by using waste polyester material and polyurethane paint prepared by using said polyester. Urumqi Petro Chemical General Plant, China Petro Chemical, JIAO XUEJUN, August 7, 1996: CN95107531

The present invention uses waste polyester material as initial material which is reflux-alcoholized with the mixture of diethylene glycol and pentaerythritol and/or glycerol, fractionated to separate glycol, and polycondensated to obtain modified polyester. Modified polyester diluted with mixed solv ...


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Zhan Jianghong, Pan Yicheng, Wang Anjiang: Single-component polyurethane paint and its preparing process. Urumqi Petro Chemical General Plant, China Petro Chemical Co, tang jianwu, March 15, 2000: CN98118948

A single-component polyurethane paint is prepared from oxidized residual dregs of terephthalic acid as initial raw material, leftover of terephahalic acid or terephthalic acid or phthalic acid anhydride, diglycol, pentaerythritol, cyclohexanone, xylene, and toluene diisocyanate through esterifying r ...


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Zhan Jianghong, Gong Tao: Polyurethane paint. Urumqi Petrochemical General Plant, Sinopec, tang jianwu, February 16, 2000: CN99101988

The polyurethane paint of the present invention is two-component paint prepared with modified polyester. Modified polyester synthesized with waste polyester is diluted with mixed solvent, which may be the mixture of dimethyl benzene and cyclohexanone or the mixture of dimethyl benzene, cyclohexanone ...


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Chen Lantian, Zhan Jianghong, Xu Xinliang, He Chunmei, Gong Tao, Chen Guoqiang: Methyl phenyl carbamate content determination method. Petrochina Company, xiexiao yan, August 13, 2008: CN200810101692

The present method relates to a method for determining content of methyl phenyl carbamate. Methyl phenyl carbamate or sample containing methyl phenyl carbamate is reacted with excessive barium hydroxide solution in the presence of catalyzer and zeolite granules in the boiling reflux state for 10-30 ...


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Zhan Jianghong, Wang Gongying, Xu Xinliang, Zeng Yi, Xue Yuan, Kang Tao, Gong Tao, Wang Yue, Chen Lantian, Ma Fei, Dong Zhixin, Yao Jie, Chen Guoqiang, Wang Qingyin: Method for synthesizing diphenylurea from urea and aniline. PetroChina, Xie Xiaoyan, April 15, 2009: CN200710175663

The invention relates to a method for directly synthesizing diphenyl urea by using urea and aniline as raw materials which are put into a reaction kettle according to a molar ratio of 1:3-8, then heating up, decompressing and evacuating are carried out to have a reaction; the temperature of the reac ...


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Chen Lantian, Gong Tao, Zhan Jianghong, Xu Xinliang, Wei Wei, Zhao Ning: (ethene) Ester by carbamide and propylene(ethylene) glycol. Petrochina, li yumeng, April 26, 2006: CN200510112998

This invention relates to a regenerating method for compounding propylene carbonate catalyst with aquacare and methyl ethylene glycol, which comprises the following steps: a, separating the catalyst with the centrifuge; b, scouring with the organic solvent, filtering and drying; c, baking the dried ...


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Chen Lantian, Zhan Jianghong, Lin Huifang: Process for determining ethylene carbonate content. Petrochina, jin jie shi xiaoyan, April 26, 2006: CN200410084097

The invention discloses a chemistry analysis test method of ethyl carbonate ester content in the organic chemical industry, which comprises the following steps: generating sodium carbonate after the reaction of ethyl carbonate ester or solution through excess alkali standard solution; forming the pr ...


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Zhao Chengguang, Ning Zhangqing, Zhan Jianghong: Determination method for saturated hydrocarbon, arene, colloid, asphalt content in oil product. Petrochina, jin jie ren ji, April 26, 2006: CN200410084098

The invention discloses a detecting method of saturated hydrocarbon, aromatic hydrocarbon, colloid and asphaltene content in one oil, which comprises the following steps: diluting the 1-2 weight sample through 45-90 weight benzene´╝Ť preheating for half a hour through thin-layer chromatograph to do bl ...


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Zhao Chengguang, Ning Changqing, Zhan Jianghong: Method for detecting content arsenic in water. China National Petroleum, Beijing, jin jie, May 7, 2003: CN01134374

This invention discloses a method for testing As content in water to weight two portions of potassium iodide, 0.5-1.5 portion of sulfourea to put into an arsine gene rating bottle to take 100-300 portions of water sample into the bottle and add 15-30 portions of strong HC1 to be boiled for 3-10 minu ...