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151 条记录 (耗时 0.024 秒)

    Process for producing dimethylamine
    96.
    发明授权
    Process for producing dimethylamine 失效
    二甲胺生产工艺

    公开(公告)号：US5773659A

    公开(公告)日：1998-06-30

    申请号：US682588

    申请日：1996-07-24

    申请人： Michio Fukatsu ,  Katsumasa Nishijima ,  Takeshi Narita ,  Toshio Nakamura ,  Kiyonobu Niwa

    发明人： Michio Fukatsu ,  Katsumasa Nishijima ,  Takeshi Narita ,  Toshio Nakamura ,  Kiyonobu Niwa

    IPC分类号： B01J29/06 ,  B01J29/18 ,  B01J29/50 ,  B01J37/06 ,  C07B61/00 ,  C07C209/16 ,  C07C211/04

    CPC分类号： C07C209/16 ,  B01J29/06 ,  B01J29/18 ,  B01J29/50 ,  B01J37/06

    摘要： To develop a zeolite catalyst which can prevent the drastic lowering of dimethylamine selectivity to be caused in the production of dimethylamine using a zeolite catalyst when the conversion of methanol is high, and which can give higher dimethylamine selectivity and lower trimethylamine selectivity as well as higher methanol-consuming reaction activity; and to provide a process for producing dimethylamine with high selectivity, using the catalyst. A process for producing dimethylamine by allowing methanol, or methanol and a methylamine mixture, or a methylamine mixture to react with ammonia in the gaseous phase in the presence of a catalyst, characterized in that a modified zeolite prepared by treating a zeolite with a solution containing a chelating agent is used as the catalyst.

    摘要翻译： PCT No.PCT / JP95 / 02480第 371日期：1996年7月24日 102（e）日期1996年7月24日PCT 1995年12月5日PCT PCT。 公开号WO96 / 17820PC。 日期1996年6月13日开发沸石催化剂，其可以防止在甲醇转化率高时在使用沸石催化剂生产二甲胺时引起的二甲胺选择性剧烈降低，并且其可以提供更高的二甲胺选择性和较低的三甲胺选择性 以及较高的甲醇消耗反应活性; 并提供使用该催化剂以高选择性生产二甲胺的方法。 一种通过使甲醇或甲醇和甲胺混合物或甲胺混合物在催化剂存在下在气相中与氨反应生产二甲胺的方法，其特征在于通过用含有 使用螯合剂作为催化剂。

    Cracking catalyst for hydrocarbon charges comprising an offretite, a zeolite and a matrix
    98.
    发明授权
    Cracking catalyst for hydrocarbon charges comprising an offretite, a zeolite and a matrix 失效
    用于烃装料的裂化催化剂包括异位素，沸石和基质

    公开(公告)号：US4992400A

    公开(公告)日：1991-02-12

    申请号：US154258

    申请日：1988-02-10

    申请人： Christian Marcilly ,  Jean-Marie Deves ,  Francis Raatz

    发明人： Christian Marcilly ,  Jean-Marie Deves ,  Francis Raatz

    IPC分类号： B01J29/06 ,  B01J29/08 ,  B01J29/18 ,  B01J29/40 ,  B01J29/50 ,  B01J29/80 ,  C10G11/04 ,  C10G11/05

    CPC分类号： C10G11/05 ,  B01J29/80 ,  B01J2229/16 ,  B01J2229/26 ,  B01J2229/42 ,  B01J29/084 ,  B01J29/18 ,  B01J29/40 ,  B01J29/50

    摘要： The cracking catalyst of the invention contains:(a) 20-95% by weight of at least one matrix, selected from the group consisting of alumina, silica, magnesia, clay, titanium oxide, zirconia, combinations of at least two of these compounds and alumina-boron oxide combinations,(b) 1-60% by weight of at least one zeolite of open structure whose main dodecagonal channels have openings of at least 7 Angstroms, said zeolite of open structure being selected from the group formed of X, Y, L, omega and beta zeolites,(c) 0.5-60% by weight of at least one offretite whose main dodecagonal channels have openings smaller than 7 Angstroms and which have a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio from about 15 to about 500, the crystalline parameters a and c of elementary mesh ranging respectively from 1.285 to 1.315 nm for a and from 0.748 to 0.757 nm for c and have a potassium content lower than 1.5% by weight.

    摘要翻译： 本发明的裂化催化剂包含：（a）20-95重量％的至少一种选自氧化铝，二氧化硅，氧化镁，粘土，氧化钛，氧化锆，这些化合物中的至少两种的组合的基质 和氧化铝 - 氧化硼组合，（b）1-60重量％的至少一种开口结构的沸石，其主要十二边形通道具有至少7埃的开口，所述开放结构的沸石选自由X， Y，L，ω和β沸石，（c）0.5-60％重量的至少一种其主要十二边形通道的开口小于7埃，并且具有约15至约500的SiO 2 / Al 2 O 3摩尔比， 基本网格的结晶参数a和c分别为1.85〜1.315nm，c为0.748〜0.757nm，钾含量低于1.5重量％。