MULTI-METAL CYANIDE CATALYSTS
    1.
    发明申请
    MULTI-METAL CYANIDE CATALYSTS 审中-公开
    多金属氰化物催化剂

    公开(公告)号:WO0074844A8

    公开(公告)日:2001-03-29

    申请号:PCT/EP0004572

    申请日:2000-05-19

    CPC classification number: C08G65/2663 B01J27/26

    Abstract: The invention relates to multi-metal cyanide compounds of the general formula (I). In said formula: M represents at least one metal ion, selected from the group containing Zn , Fe , Co , Ni , Mn , Pb , Fe , Mo , Mo , Al , V , Sr , W , W , Cu , Cr , Cr , Cd , Hg , Pd , Pt , V , Mg , Ca , Ba ; M represents at least one metal ion, selected from the group containing Fe , Fe , Co , Cr , Mn , Mn , Rh , Ru , Ru , V , V , Co , Ir and Cr and M is different from M ; X represents at least one anion, selected from the group containing halide, hydroxide, sulphate, carbonate, cyanide, thiocyanate, isocyanate, carboxylate, in particular, formiate, acetate, propionate, oxalate, nitrate; A represents at least one anion, selected from the group containing halide, hydroxide, sulphate, carbonate, cyanate, thiocyanate, isocyanate, carboxylate or nitrate, in particular, cyanide; a, b, c and d are whole or fractional numbers which are selected in such a way, that the electroneutrality of the cyanide compound is guaranteed, whereby a, b and d are greater than zero and c is greater than or equal to zero; e is a whole or fractional number greater than zero and h is a whole or fractional number greater than or equal to zero; and f and g are whole or fractional numbers which are selected in such a way that the electroneutrality of M fXg is guaranteed.

    Abstract translation: 涉及多金属的式(I)的氰化:M <1> [M <2>(CN)BAC] D * E中号<1> FXG * H 2 O,其中M <1>,选自Zn <中选择的至少一种金属离子2+ >,铁<2+>,钴<3+>,镍<2+>,锰<2+>,钴<2+>,锡<2+>,铅<2+>,铁<3+> 沫<4+>,莫<6+>,铝<3+>,V <5+>,SR <2+>,W <4+>,W <6+>,铜<2+>,铬< 2+>,铬<3+>,镉<2+>,汞<2+>,钯<2+>,铂<2+>,V <2+>,镁<2+>,钙<2+ >,钡<2+>; 中号<2>的至少一种金属选自Fe <2+>,铁<3+>,钴<3+>,铬<3+>,锰<2+>,锰<3+>,铑<3+ >,茹<2+>,钌<3+>,V <4+>,V <5+>,钴<2+>,IR <3+>和Cr <2+>和M <2>不同 是M <1>的; X是至少一种阴离子选自卤化物,氢氧化物,硫酸盐,碳酸盐,氰化物,硫氰酸盐,异氰酸酯,羧酸盐中,特别是甲酸盐,乙酸盐,丙酸盐,草酸盐,硝酸盐; 甲至少一个阴离子选择卤化物,氢氧化物,硫酸盐,碳酸盐,氰酸盐,硫氰酸盐,异氰酸酯,羧酸盐,或硝酸盐,特别是氰化装置; 并且a,b,c和d是被选择的整数或分数,使得氰化物化合物的电中性保证,其中a,b和d是大于零,而c是大于或等于零,并且f和g是整数或分数 是被选择使得M <1> FXG的Elektoneutralität保证数字。

    CONTINUOUS POLYAMIDE EXTRACTION PROCESS
    2.
    发明申请
    CONTINUOUS POLYAMIDE EXTRACTION PROCESS 审中-公开
    连续提取聚酰胺的方法

    公开(公告)号:WO9926996A3

    公开(公告)日:1999-09-02

    申请号:PCT/EP9807575

    申请日:1998-11-24

    CPC classification number: C08G69/46 B01D11/0242 C08G69/04 C08G69/16

    Abstract: A process is disclosed for continuously extracting polyamide particles from a circulating extraction solution in a vertical extraction column subdivided into two zones. The polyamide is treated in the first zone with an aqueous epsilon -caprolactam solution with 40-95 wt. % epsilon -caprolactam as extraction agent at 100 to 140 DEG C, then subsequently treated with water in the second zone. Finally, the caprolactam can be extracted in a manner known per se. The process allows polyamide with a low dimer content to be economically produced.

    Abstract translation: 本发明涉及一种用于聚酰胺粒子的连续萃取的方法与引导在循环萃取溶液在垂直,分成两个区萃取柱,其中,所述聚酰胺的ε-在与含水的ε--Caprolactamlösung与40中的第一区,以95重量%的己内酰胺 作为萃取剂在100至140℃下处理,然后在第二区域中用水进行后处理。 随后,可以以常规方式提取己内酰胺。 该方法可以经济地生产低二聚体含量的聚酰胺。

    3.
    发明专利
    未知

    公开(公告)号:DE59805550D1

    公开(公告)日:2002-10-17

    申请号:DE59805550

    申请日:1998-11-24

    Applicant: BASF AG

    Abstract: A process for continuous extraction of polyamide particles using a recirculating extractant in a vertical extraction column that is divided into two zones comprises treating the polyamide with an aqueous extractant comprising from 40 to 95% by weight of epsi-caprolactam in a first zone at from 100 to 140° C., and then effecting an aftertreatment with water in a second zone. The caprolactam can then be extracted in a conventional manner. The process provides for economical production of polyamide having a low dimer content.

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