会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Method for preparation of a solid titanium catalyst for olefin polymerization
    • 烯烃聚合固体钛催化剂的制备方法
    • US07151071B2
    • 2006-12-19
    • US11046130
    • 2005-01-28
    • Sang-Yull KimKi-Hwa LeeChun-Byung YangHo-Sik Chang
    • Sang-Yull KimKi-Hwa LeeChun-Byung YangHo-Sik Chang
    • B01J31/00
    • B01J31/38B01J31/0202B01J31/0204B01J2231/12
    • The present invention relates to a method for preparing a solid titanium catalyst for olefin polymerization. The method for preparing a solid titanium catalyst for olefin polymerization according to the present invention comprises: preparing a magnesium compound solution by dissolving magnesium halide compound in a solvent mixture of cyclic ether and one or more of alcohol; preparing a carrier by adding titanium halide compound to said magnesium compound solution, then elevating the temperature of the solution and aging the solution to precipitate particles, and then adding titanium halide compound thereto for further reaction; preparing a catalyst by reacting said carrier with titanium compound and electron donor; and washing said catalyst with halogenated saturated hydrocarbon. According to the method of the present invention, a catalyst having high activity can be obtained and polyolefin produced by using the catalyst prepared by the method of the present invention has high stereoregularity, relatively easily compared with the conventional method.
    • 本发明涉及一种制备用于烯烃聚合的固体钛催化剂的方法。 制备本发明的烯烃聚合用固体钛催化剂的方法包括:通过将卤化镁化合物溶解在环醚和一种或多种醇的溶剂混合物中来制备镁化合物溶液; 通过向所述镁化合物溶液中加入卤化钛化合物制备载体,然后升高溶液的温度并使溶液老化以沉淀颗粒,然后加入卤化钛化合物进一步反应; 通过使所述载体与钛化合物和电子给体反应制备催化剂; 并用卤化饱和烃洗涤所述催化剂。 根据本发明的方法,与传统方法相比,可以获得具有高活性的催化剂,并且通过使用本发明方法制备的催化剂制备的聚烯烃具有高的立构规整性。
    • 2. 发明申请
    • Method for preparation of a solid titanium catalyst for olefin polymerization
    • 烯烃聚合固体钛催化剂的制备方法
    • US20050215422A1
    • 2005-09-29
    • US11046130
    • 2005-01-28
    • Sang-Yull KimKi-Hwa LeeChun-Byung YangHo-Sik Chang
    • Sang-Yull KimKi-Hwa LeeChun-Byung YangHo-Sik Chang
    • C08F4/64B01J31/00B01J31/02B01J31/38C08F4/623C08F10/00
    • B01J31/38B01J31/0202B01J31/0204B01J2231/12
    • The present invention relates to a method for preparing a solid titanium catalyst for olefin polymerization. The method for preparing a solid titanium catalyst for olefin polymerization according to the present invention comprises: preparing a magnesium compound solution by dissolving magnesium halide compound in a solvent mixture of cyclic ether and one or more of alcohol; preparing a carrier by adding titanium halide compound to said magnesium compound solution, then elevating the temperature of the solution and aging the solution to precipitate particles, and then adding titanium halide compound thereto for further reaction; preparing a catalyst by reacting said carrier with titanium compound and electron donor; and washing said catalyst with halogenated saturated hydrocarbon. According to the method of the present invention, a catalyst having high activity can be obtained and polyolefin produced by using the catalyst prepared by the method of the present invention has high stereoregularity, relatively easily compared with the conventional method.
    • 本发明涉及一种制备用于烯烃聚合的固体钛催化剂的方法。 制备本发明的烯烃聚合用固体钛催化剂的方法包括:通过将卤化镁化合物溶解在环醚和一种或多种醇的溶剂混合物中来制备镁化合物溶液; 通过向所述镁化合物溶液中加入卤化钛化合物制备载体,然后升高溶液的温度并使溶液老化以沉淀颗粒,然后加入卤化钛化合物进一步反应; 通过使所述载体与钛化合物和电子给体反应制备催化剂; 并用卤化饱和烃洗涤所述催化剂。 根据本发明的方法,与传统方法相比,可以获得具有高活性的催化剂,并且通过使用本发明方法制备的催化剂制备的聚烯烃具有高的立构规整性。
    • 5. 发明授权
    • Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic compounds or partially oxidized intermediates thereof with carbon dioxide containing gas
    • 通过用含二氧化碳气体氧化烷基芳族化合物或其部分氧化的中间体来生产芳族羧酸的方法
    • US06180822B2
    • 2001-01-30
    • US09453536
    • 1999-12-03
    • Sung-Hwa JhungKi-Hwa LeeYoun-Seok ParkJin Sun Yoo
    • Sung-Hwa JhungKi-Hwa LeeYoun-Seok ParkJin Sun Yoo
    • C07C5116
    • C07C51/265Y02P20/52C07C63/307C07C63/06C07C63/15C07C63/313C07C63/333C07C63/16C07C63/38C07C63/26
    • An improved production method of aromatic carboxylic acid products of significantly improved yield and quality, the method including oxidizing alkyl aromatic substrates or their partially oxidized intermediates in a catalyst system containing a conventional catalyst and, if deemed necessary, additional components such as a transition metal or lanthanide series metal, in an acetic acid medium, with a feed gas containing both oxygen and carbon dioxide. Since carbon dioxide functions as a co-oxidant along with oxygen in the oxidation reaction, the oxidation reaction proceeds more selectively to produce the carboxylic acid product much faster under milder reaction conditions as compared to the conventional oxidation. The present invention also can be utilized as an effective purification process to produce highly pure terephthalic acid or isophthalic acid by oxidation of impurities such as 4-carboxybenzaldehyde and para-toluic acid or 3-carboxybenzaldehyde and meta-toluic acid which are contaminated in crude terephthalic acid and isophthalic acid products, respectively.
    • 一种改进的产率和质量显着提高的芳族羧酸产物的生产方法,包括在含有常规催化剂的催化剂体系中氧化烷基芳族底物或其部分氧化的中间体的方法,如果需要,还可加入另外的组分如过渡金属或 镧系元素金属,在乙酸介质中,含有含氧和二氧化碳的进料气体。 由于二氧化碳在氧化反应中作为氧气与氧气一起起作用,所以与常规氧化相比,氧化反应更有选择地进行,以在更温和的反应条件下更快地生成羧酸产物。 本发明还可以用作有效的纯化方法,通过氧化杂质如4-羧基苯甲醛和对甲苯甲酸或3-羧基苯甲醛和间甲苯甲酸来生产高纯对苯二甲酸或间苯二甲酸,这些杂质被粗对苯二甲酸 酸和间苯二酸产品。
    • 6. 发明授权
    • Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic hydrocarbons or partially oxidized intermediates thereof
    • 通过氧化烷基芳族烃或其部分氧化的中间体制备芳族羧酸的方法
    • US06194607B1
    • 2001-02-27
    • US09453537
    • 1999-12-03
    • Sung-Hwa JhungYoun-Seok ParkKi-Hwa LeeJin Sun YooJong-Hyun Chae
    • Sung-Hwa JhungYoun-Seok ParkKi-Hwa LeeJin Sun YooJong-Hyun Chae
    • G07C5116
    • C07C51/265Y02P20/52C07C63/26C07C63/16
    • An improved production method of aromatic carboxylic acid products of significantly improved yield and quality by oxidizing alkyl aromatic substrates or their partially oxidized intermediates in a conventional MC-type catalyst system modified to contain additional components such as alkali metal or alkaline earth metal in an acetic acid medium in a feed gas containing oxygen and optionally carbon dioxide. Since carbon dioxide functioned as a co-oxidant along with oxygen in the oxidation reaction, the oxidation reaction proceeds more selectively to produce the carboxylic acid product much faster under milder reaction conditions over the conventional MC-type oxidation. In particular, the oxidation of para-xylene carried out by the novel present method enabled production of terephthalic acid of higher yield and enhanced quality, which were improved far more than the extent that generally could be expected by current PTA producers. The present invention also provides an effective purification process to produce highly pure terephthalic acid or isophthalic acid by the oxidation of impurities such as 4-carboxybenzaldehyde and para-toluic acid or 3-carboxybenzaldehyde and meta-toluic acid contaminated in crude terephthalic acid and isophthalic acid product, respectively.
    • 通过在常规的MC型催化剂体系中氧化烷基芳香族基质或其部分氧化的中间体,在醋酸中含有另外的成分如碱金属或碱土金属,改进了产率和质量的改善的芳族羧酸产物的生产方法 在含有氧气和任选的二氧化碳的进料气体中的介质。 由于二氧化碳在氧化反应中作为辅助氧化剂与氧气一起起作用,因此与常规的MC型氧化相比,在较温和的反应条件下,氧化反应更有选择性地进行得更快地产生羧酸产物。 特别地,通过新颖的本发明方法进行的对二甲苯的氧化使得能够生产更高产率和更高质量的对苯二甲酸,其得到的改善远远超过现有PTA生产者普遍预期的程度。 本发明还提供了一种有效的纯化方法,通过氧化杂质如4-羧基苯甲醛和对甲苯甲酸或3-羧基苯甲醛和在对苯二甲酸和间苯二甲酸中污染的间甲苯甲酸,产生高纯对苯二甲酸或间苯二甲酸 产品。
    • 7. 发明授权
    • Preparation method of methacrylic acid
    • 甲基丙烯酸的制备方法
    • US07012156B2
    • 2006-03-14
    • US10130833
    • 2000-12-20
    • Ki-Hwa LeeJin-Sun Yoo
    • Ki-Hwa LeeJin-Sun Yoo
    • C07C51/16
    • C07C51/252Y02P20/142C07C57/04
    • The present invention relates to a preparation method of methacrylic acid which improves reaction selectivity of methacrylic acid. The method may include producing methacrylic acid by gas phase oxidation of methachrolane in the presence of catalyst. Particularly, the present invention relates to the preparation method of methacrylic acid comprising the step of introducing CO2 up to 3˜80 mole % of the feed gas in the presence off catalyst having the general formula of PaMo11VbXcYdOe. X may be one or more elements selected from the group of alkaline metal and Tl element. Y may be one or more elements selected from the group of Cu, Pb, Sb, Cr and Ce. In addition, a, b, c, d and e are the molar ratio of each necessary element when molybdenum is 11; where a is 0.8˜1.6, b is 0.6˜2, c is 0.8˜2.2, d is 0.1˜0.8 and e is a suitable value for elemental valency in the composition of said formula respectively.
    • 本发明涉及改善甲基丙烯酸反应选择性的甲基丙烯酸的制备方法。 该方法可以包括在催化剂存在下通过甲基丙烯酸的气相氧化制备甲基丙烯酸。 特别地,本发明涉及甲基丙烯酸的制备方法,其包括在具有通式P'的催化剂存在下引入CO 3 2-7%至80%摩尔的进料气体的步骤, SUB> Mo X X X X X X X X X X X X X X X X X X X X X X X X X / / / / / / / / / / / / / / / / / / / / / SUB>。 X可以是选自碱金属和Tl元素的一种或多种元素。 Y可以是选自Cu,Pb,Sb,Cr和Ce中的一种或多种元素。 此外,a,b,c,d和e是当钼为11时必需元素的摩尔比; 其中a为0.8〜1.6,b为0.6〜2,c为0.8〜2.2,d为0.1〜0.8,e分别为所述配方组成中元素的合适值。