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    • 12. 发明授权
    • Process for the manufacture of epoxy-monomers and epoxides
    • 制备环氧单体和环氧化物的方法
    • US09573917B2
    • 2017-02-21
    • US14897241
    • 2014-06-09
    • SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.
    • Pavel KubicekBedrich NemecekPetr Sladek
    • C07D301/24C07D301/26C07D301/32
    • C07D301/26C07D301/32C08G65/22C08G2650/32
    • A process for manufacturing epoxy monomers and/or epoxides in high yields and useful quality and chemical stability by dehydrochlorination of the corresponding chlorohydrins with an alkaline agent, producing the corresponding side product dry salt in a high purity, characterized in that the process comprises the following steps: a. Reaction of the chlorohydrins with the alkaline agent to form corresponding epoxides and the corresponding precipitated chloride salt; b. Dehydration, and optionally completing the reaction, of the reaction mixture of step (a), by use of an azeotropic agent, added to step (b) or generated in situ in step (a), resulting in the producing of a dehydrated reaction mixture; c. Separating the resulting chloride salt by filtration from the dehydrated reaction mixture (b) and d. Isolating the epoxide from the filtered liquid fraction.
    • 一种以高产率制备环氧单体和/或环氧化物的方法,并且通过用碱性试剂对相应的氯代醇进行脱氯化氢来产生有用的质量和化学稳定性,产生高纯度的相应的副产物干盐,其特征在于该方法包括以下 步骤:a。 氯醇与碱性试剂的反应形成相应的环氧化物和相应的沉淀氯化物盐; b。 通过使用加入到步骤(b)中的共沸剂或在步骤(a)中原位产生的步骤(a)的反应混合物的脱水和任选地完成反应),导致产生脱水的反应混合物 ; C。 通过过滤从脱水反应混合物(b)和d分离得到的氯化物盐。 从过滤的液体馏分中分离出环氧化物。
    • 13. 发明授权
    • Composition comprising 1,1,1,3-tetrachloropropane and a process for producing the composition thereof
    • US10934232B2
    • 2021-03-02
    • US16375187
    • 2019-04-04
    • SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.
    • Karel FilasPavel KubicekZdenek OndrusPetr Sladek
    • C07C19/01C07C17/02C07C17/38C07C17/278C07C17/275C07C17/383
    • Disclosed is a process for producing a chlorinated C3-6 alkane comprising providing a reaction mixture comprising an alkene and carbon tetrachloride in a principal alkylation zone to produce chlorinated C3-6 alkane in the reaction mixture, and extracting a portion of the reaction mixture from the principal alkylation zone, wherein: a) the concentration of the chlorinated C3-6 alkane in the reaction mixture in the principal alkylation zone is maintained at a level such that the molar ratio of chlorinated C3-6 alkane:carbon tetrachloride in the reaction mixture extracted from the alkylation zone does not exceed 95:5 when the principal alkylation zone is in continuous operation; and/or b) the reaction mixture extracted from the principal alkylation zone additionally comprises alkene and the reaction mixture is subjected to a dealkenation step in which at least about 50% or more by weight of the alkene present in the reaction mixture is extracted therefrom and at least about 50% of the extracted alkene is fed back into the reaction mixture provided in the principal alkylation zone; and/or c) the reaction mixture present in the principal alkylation zone and extracted from the principal alkylation zone additionally comprises a catalyst, and the reaction mixture extracted from the principal alkylation zone is subjected to an aqueous treatment step in which the reaction mixture is contacted with an aqueous medium in an aqueous treatment zone, a biphasic mixture is formed and an organic phase comprising catalyst is extracted from the biphasic mixture.
    • 17. 发明授权
    • Process for producing a chlorinated C3-6 alkane
    • US10294179B2
    • 2019-05-21
    • US15858234
    • 2017-12-29
    • SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.
    • Karel FilasPavel KubicekZdenek OndrusPetr Sladek
    • C07C17/02C07C17/38C07C17/278C07C19/01C07C17/275C07C17/383
    • Disclosed is a process for producing a chlorinated C3-6 alkane comprising providing a reaction mixture comprising an alkene and carbon tetrachloride in a principal alkylation zone to produce chlorinated C3-6 alkane in the reaction mixture, and extracting a portion of the reaction mixture from the principal alkylation zone, wherein: a) the concentration of the chlorinated C3-6 alkane in the reaction mixture in the principal alkylation zone is maintained at a level such that the molar ratio of chlorinated C3-6 alkane:carbon tetrachloride in the reaction mixture extracted from the alkylation zone does not exceed 95:5 when the principal alkylation zone is in continuous operation; and/or b) the reaction mixture extracted from the principal alkylation zone additionally comprises alkene and the reaction mixture is subjected to a dealkenation step in which at least about 50% or more by weight of the alkene present in the reaction mixture is extracted therefrom and at least about 50% of the extracted alkene is fed back into the reaction mixture provided in the principal alkylation zone; and/or c) the reaction mixture present in the principal alkylation zone and extracted from the principal alkylation zone additionally comprises a catalyst, and the reaction mixture extracted from the principal alkylation zone is subjected to an aqueous treatment step in which the reaction mixture is contacted with an aqueous medium in an aqueous treatment zone, a biphasic mixture is formed and an organic phase comprising catalyst is extracted from the biphasic mixture.