Patents Assigned to Sinopec Catalyst Co., Ltd.
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Patent number: 11820690Abstract: In a method for treating waste water containing ammonium salts, sodium sulfate crystal is obtained by freezing crystallization, then the pH value of the waste water is adjusted to a specific range, and next sodium chloride crystal and ammonia water is obtained by evaporation. Alternatively, the pH value of the waste water is adjusted to a specific range, then sodium chloride crystal and ammonia water is obtained by evaporation, and next sodium sulfate crystal is obtained by freezing crystallization. This method can recover ammonia, sodium sulfate, and sodium chloride from the waste water.Type: GrantFiled: September 29, 2020Date of Patent: November 21, 2023Assignees: China Petroleum & Chemical Corporation, Sinopec Catalyst Co., Ltd.Inventors: Xiping Yin, Ye Li, Songyuan Gu, Zhijian Liu, Tao Wang, Jin'ai Gao, Yuhua Chen, Yan Zhou, Ling Yang, Zhiwei Yuan, Hongliang Yi, Tao An, Fuzu Liu, Zhimin Zhang, Shupeng Xu, Hongqi Guo
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Patent number: 11572289Abstract: Apparatus and methods are related to treating waste water containing ammonium salts, which contains NH4+, SO42?, Cl?, and Na+. In such a method, the pH value of the waste water to be treated is adjusted to a specific range in advance; sodium sulfate crystal and relatively concentrated ammonia are obtained by first evaporation, and then sodium chloride crystal and relatively dilute ammonia is obtained by second evaporation; alternatively, sodium chloride crystal and relatively concentrated ammonia is obtained by third evaporation, and then sodium sulfate crystal and relatively dilute ammonia are obtained by fourth evaporation. Ammonia, sodium sulfate, and sodium chloride from the waste water are recovered so that the resources in the waste water can be reused.Type: GrantFiled: September 21, 2020Date of Patent: February 7, 2023Assignees: China Petroleum & Chemical Corporation, Sinopec Catalyst Co., Ltd.Inventors: Xiping Yin, Ye Li, Songyuan Gu, Zhijian Liu, Tao Wang, Jin'ai Gao, Yuhua Chen, Yan Zhou, Ling Yang, Zhiwei Yuan, Hongliang Yi, Tao An, Fuzu Liu, Zhimin Zhang, Shupeng Xu
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Patent number: 10829401Abstract: In a method for treating waste water containing ammonium salts, sodium sulfate crystal is obtained by freezing crystallization, then the pH value of the waste water is adjusted to a specific range, and next sodium chloride crystal and ammonia water is obtained by evaporation. Alternatively, the pH value of the waste water is adjusted to a specific range, then sodium chloride crystal and ammonia water is obtained by evaporation, and next sodium sulfate crystal is obtained by freezing crystallization. This method can recover ammonia, sodium sulfate, and sodium chloride from the waste water.Type: GrantFiled: August 28, 2018Date of Patent: November 10, 2020Assignees: China Petroleum & Chemical Corporation, Sinopec Catalyst Co., Ltd.Inventors: Xiping Yin, Ye Li, Songyuan Gu, Zhijian Liu, Tao Wang, Jin'ai Gao, Yuhua Chen, Yan Zhou, Ling Yang, Zhiwei Yuan, Hongliang Yi, Tao An, Fuzu Liu, Zhimin Zhang, Shupeng Xu, Hongqi Guo
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Patent number: 10815132Abstract: The present invention relates to the waste water treatment field, and discloses apparatus and method for treating waste water containing ammonium salts, which contains NH4+, SO42?, Cl?, and Na+. In the method of the present invention, the pH value of the waste water to be treated is adjusted to a specific range in advance; sodium sulfate crystal and relatively concentrated ammonia are obtained by first evaporation, and then sodium chloride crystal and relatively dilute ammonia is obtained by second evaporation; alternatively, sodium chloride crystal and relatively concentrated ammonia is obtained by third evaporation, and then sodium sulfate crystal and relatively dilute ammonia are obtained by fourth evaporation. The method of the present invention can recover ammonia, sodium sulfate, and sodium chloride from the waste water respectively, so that the resources in the waste water can be reused as far as possible.Type: GrantFiled: April 20, 2018Date of Patent: October 27, 2020Assignees: China Petroleum & Chemical Corporation, Sinopec Catalyst Co., Ltd.Inventors: Xiping Yin, Ye Li, Songyuan Gu, Zhijian Liu, Tao Wang, Jin'ai Gao, Yuhua Chen, Yan Zhou, Ling Yang, Zhiwei Yuan, Hongliang Yi, Tao An, Fuzu Liu, Zhimin Zhang, Shupeng Xu
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Patent number: 9593185Abstract: The present disclosure provides a suspension of a solid catalyst component used in propylene polymerization and a method for preparing the same. The suspension includes the solid catalyst component and a liquid medium containing propylene and an alkane, and is preferably prepared by mixing the solid catalyst component and the alkane to obtain a mixed slurry, which is further mixed with liquid propylene. Using of a proper liquid dispersing agent at a proper proportion and amount enables the solid catalyst component to be more homogeneously dispersed, thus preventing the phenomenon of agglomeration in the polymerization process without using a large amount of the dispersing agent or any additional mixer. The present disclosure further provides a method of propylene polymerization, including feeding the suspension into a reaction system of propylene polymerization, wherein propylene polymerization is initiated under polymerization conditions.Type: GrantFiled: December 5, 2014Date of Patent: March 14, 2017Assignees: China Petroleum & Chemical Corporation, Sinopec Catalyst Co., Ltd., Beijing Research Institute Of Chemical Industry, China Petroleum & Chemical CorporationInventors: Jinlai Qin, Haixiang Cui, Xiaodong Wang, Mingzhi Gao, Cuiling Xiao, Yanju Sun, Liang Pan, Xin Chen, Ziqiang Wang
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Publication number: 20150158961Abstract: The present disclosure provides a suspension of a solid catalyst component used in propylene polymerization and a method for preparing the same. The suspension includes the solid catalyst component and a liquid medium containing propylene and an alkane, and is preferably prepared by mixing the solid catalyst component and the alkane to obtain a mixed slurry, which is further mixed with liquid propylene. Using of a proper liquid dispersing agent at a proper proportion and amount enables the solid catalyst component to be more homogeneously dispersed, thus preventing the phenomenon of agglomeration in the polymerization process without using a large amount of the dispersing agent or any additional mixer. The present disclosure further provides a method of propylene polymerization, including feeding the suspension into a reaction system of propylene polymerization, wherein propylene polymerization is initiated under polymerization conditions.Type: ApplicationFiled: December 5, 2014Publication date: June 11, 2015Applicants: China Petroleum & Chemical Corporation, Sinopec Catalyst Co., Ltd., Beijing Research Institute of Chemical Industry, China Petroleum & Chemical CorporationInventors: Jinlai QIN, Haixiang CUI, Xiaodong WANG, Mingzhi GAO, Cuiling XIAO, Yanju SUN, Liang PAN, Xin CHEN, Ziqiang WANG