Crystalline aluminosilicate zeolite catalyst and the method for
manufacturing thereof
    2.
    发明授权
    Crystalline aluminosilicate zeolite catalyst and the method for manufacturing thereof 失效
    结晶硅铝酸盐沸石催化剂及其制造方法

    公开(公告)号:US4400328A

    公开(公告)日:1983-08-23

    申请号:US312496

    申请日:1981-10-19

    IPC分类号: B01J29/70 C01B39/30 C07F5/06

    CPC分类号: C01B39/305 B01J29/70

    摘要: The present invention relates to provide new crystalline zeolite catalyst (ZKU-catalyst) having the superior catalytic activity and selectivity and the long period of the catalytic life.One of the method of said catalyst (ZKU-2 catalyst) lies in crystallizing the starting zeolite preparation in the presence of the crystallization conditioning agent of crystallization of tetraalkyl (methyl or ethyl or combination thereof) ammonium cation.Another method of said catalyst (ZKU-3, 4 catalysts) lies in crystallizing the starting zeolite preparation in the presence of both said conditioning agent of crystallization and the substance capable of forming the seed and/or the skelton of crystal. The ZKU-3 catalyst is manufactured using the seed of crystal, while the ZKU-4 catalyst is manufactured using the seed and the skelton of crystal.The seed of crystal is useful for the promoter of the crystallization rate and the improvement of the catalytic activity, the skelton of crystal is useful for so-called "skelton" which is of use for the improvement of the mechanical strength, the dimentional stability and the conditioning of the pore structure of crystal in the molded catalyst and also for the improvement of uniformly dispersing the components of the catalytic composition.The characteristic feature of the ZKU-2, 3 and 4 catalysts of the present invention has been compared with that of the ZSM-34 catalyst.

    摘要翻译: 本发明涉及提供具有优异的催化活性和选择性以及长期催化寿命的新型结晶沸石催化剂(ZKU-催化剂)。 所述催化剂(ZKU-2催化剂)的方法之一在于在四烷基(甲基或乙基或其组合)铵阳离子结晶的结晶调节剂存在下使起始沸石制剂结晶。 所述催化剂(ZKU-3,4催化剂)的另一种方法在于在所述结晶调理剂和能够形成晶种的物质和/或晶体的晶体存在下,使起始沸石制剂结晶。 ZKU-3催化剂使用晶体晶种制造,而ZKU-4催化剂使用晶种和晶体晶体制造。 晶体种子对于结晶速率的促进剂和催化活性的提高是有用的,晶体的碳化硅可用于所谓的“skelton”,其用于改善机械强度,尺寸稳定性和 调节成型催化剂中晶体的孔结构,以及改进均匀分散催化剂组合物的组分。 本发明的ZKU-2,3和4催化剂的特征与ZSM-34催化剂的特征进行了比较。

    Method for producing hydrogenated NBR latex
    4.
    发明授权
    Method for producing hydrogenated NBR latex 失效
    氢化NBR胶乳的制备方法

    公开(公告)号:US5554726A

    公开(公告)日:1996-09-10

    申请号:US492085

    申请日:1995-07-16

    IPC分类号: C08J3/07 C08J3/02 C08L9/04

    摘要: The object of this invention is to provide a method for producing a hydrogenated NBR latex with sufficiently reduced latex particle size and excellent standing stability without using any harmful solvent or restricting the kind of usable emulsifier.The method for producing hydrogenated NBR latex according to this invention comprises mixing an organic layer in which a hydrogenated NBR is dissolved in an organic solvent with an aqueous layer in which an emulsifier is dissolved in water, then agitating the mixture, and removing the organic solvent by distillation, characterized in that said emulsification is performed in the presence of an alcohol.

    摘要翻译: PCT No.PCT / JP94 / 01960 Sec。 371 1995年7月18日第 102(e)日期1995年7月18日PCT 1994年11月21日PCT PCT。 第WO95 / 14729号公报 日期:1995年6月本发明的目的是提供一种制备氢化NBR胶乳的方法,其具有足够降低的胶乳粒度和优异的稳定性,而不使用任何有害溶剂或限制可用的乳化剂的种类。 根据本发明的氢化NBR胶乳的制备方法包括将其中溶解有氢化NBR的有机层与其中乳化剂溶于水的水层混合,然后搅拌该混合物,并除去有机溶剂 通过蒸馏,其特征在于所述乳化在醇的存在下进行。