公开(公告)号：US20220161237A1

公开(公告)日：2022-05-26

申请号：US17602887

申请日：2020-04-01

Applicant: BASF SE

Inventor： Veronika WLOKA ,  Dominik GARELLA ,  Michael REISER ,  Thomas HEIDEMANN ,  Hendrik DE WINNE

IPC: B01J23/72 ,  B01J27/224 ,  B01J37/02 ,  B01J37/08 ,  B01J8/24 ,  C07C209/36

Abstract: The invention relates to a catalyst system suitable for hydrogenating aromatic nitro compounds (I) to form the corresponding aromatic amines (II), the catalyst system containing, as essential constituents: a component A selected from the group consisting of silicon carbide, corundum (alpha-Al2O3) and slightly porous to non-porous zirconium oxide (ZrO2); and a component B, containing B1—a carrier substance selected from the group consisting of silicon dioxide, gamma-, delta- or theta-aluminum oxide Al2O3, titanium dioxide, zirconium dioxide and graphite, B2—a metal or a plurality of metals selected from the group consisting of copper, nickel, palladium, platinum and cobalt, and optionally B3—an additional metal selected from the group consisting of at least one metal selected from main group I, main group II, main group IV and sub-groups II, V, VI and VIII of the periodic table of the elements, the proportion of component A being in the range of 5 to 60 wt %, in relation to the total weight of the catalyst system, and the aromatic nitro compounds (I) being those of the general formula R—(NO2)n, (I), and the aromatic amines (II) being those of the general formula R—(NH2)n, (II), and the moieties R and indices n in formulas (I) and (II) having the following meaning: R is a substituted or unsubstituted aromatic C6-C10 moiety and n is an integer from 1 to 5.

公开(公告)号：US20150011792A1

公开(公告)日：2015-01-08

申请号：US14498294

申请日：2014-09-26

Applicant: BASF SE

Inventor： Lionel GEHRINGER ,  Veronika WLOKA ,  Ulrich MUELLER ,  Marine BOUDOU ,  Ulrike MAHN ,  Elke GUETLICH-HAUK

IPC: C07C67/08 ,  B01J29/89

CPC classification number: C07C67/08 ,  B01J29/89 ,  C08G18/4238 ,  C08G63/06 ,  C08G63/12 ,  C08G63/823 ,  C08G63/87

Abstract: The invention relates to a process for preparing polyester alcohols by catalytic reaction of at least one at least polyfunctional carboxylic acid with at least one polyfunctional alcohol and/or by catalytic ring-opening polymerization of cyclic esters in the presence of catalysts, wherein a zeolite is used as catalyst.

Abstract translation: 本发明涉及通过至少一种至少多官能羧酸与至少一种多官能醇的催化反应和/或在催化剂存在下通过环酯的催化开环聚合来制备聚酯醇的方法，其中沸石是 用作催化剂。

公开(公告)号：US20170283369A1

公开(公告)日：2017-10-05

申请号：US15510949

申请日：2015-09-15

Applicant: BASF SE

Inventor： Rolf-Hartmuth FISCHER ,  Robert BAUMANN ,  Veronika WLOKA ,  Hermann LUYKEN

IPC: C07C253/30

CPC classification number: C07C253/30 ,  C07C253/10 ,  Y02P20/127 ,  C07C255/04 ,  C07C255/07

Abstract: A process for the continuous preparation of adiponitrile by hydrocyanation of 3-pentenenitrile is described, wherein a) 3-pentenenitrile is hydrocyanated to give a reaction output comprising adiponitrile, b) in a work-up 1, a mixture comprising cis-2-methyl-2-butenenitrile and cis-2-pentenenitrile is separated off as overhead product from the reaction output from the reactor R1 in a first distillation apparatus, c) the mixture comprising cis-2-methyl-2-butenenitrile and cis-2-pentenenitrile from step b) is continuously isomerized in the presence of aluminum oxide as catalyst in a reactor R2 to give a product mixture comprising 3-pentenenitrile, d) cis-2-methyl-2-butenenitrile is separated off as overhead product from the reaction output from the reactor R2 in a distillation apparatus in a work-up 2 and discharged.