公开(公告)号：SU1718720A3

公开(公告)日：1992-03-07

申请号：SU3942402

申请日：1985-08-08

Applicant: BASF AG

Inventor： OLINGER MANFRED ,  MYULLER NORBERT ,  PETER RUDOLF ,  VETTSTEJN EJGEN

IPC: C01G37/027 ,  H01F1/11 ,  C09D5/23 ,  C09D7/12 ,  G11B5/706

Abstract: Ferromagnetic chromium dioxide is prepared by converting oxides of trivalent and hexavalent chromium under superatmospheric pressure and at elevated temperatures in the presence of water and with the addition of an antimony compound as a modifier and, if required, further additives in an amount of not more than 15% by weight, by a method in which the antimony compound is present in the form of a water-soluble salt whose anion contains one or more organic molecular moieties which are oxidized in concentrated chromic acid.

公开(公告)号：ZA200508328B

公开(公告)日：2007-03-28

申请号：ZA200508328

申请日：2005-10-14

Applicant: BASF AG

Inventor： HANS-GEORG GOEBBEL ,  PETER BASSLER ,  TELES JOAQUIM H ,  PETER RUDOLF

IPC: C07D20090101 ,  C07D301/12 ,  C07D303/04

Abstract: Process for preparing propylene oxide, which comprises at least the steps (iii) and (iv) (iii) separating off propylene oxide from a mixture (M1) comprising propylene oxide and at least one solvent by distillation in a distillation column, giving a bottom stream and a vapor stream consisting essentially of propylene oxide; (iv) compressing the vapor stream obtained in (iii) by means of at least one compressor to give a compressed vapor.

公开(公告)号：ZA200500603B

公开(公告)日：2006-07-26

申请号：ZA200500603

申请日：2005-01-21

Applicant: BASF AG

Inventor： PETER BASSLER ,  PETER RUDOLF ,  JOAQUIM HENRIQUE TELES ,  HANS-GEORG GOBBEL

IPC: C07D20060101 ,  B01D20060101 ,  B01D3/14 ,  C07D301/32

公开(公告)号：DE102004009440A1

公开(公告)日：2005-09-15

申请号：DE102004009440

申请日：2004-02-24

Applicant: BASF AG

Inventor： PETER RUDOLF

IPC: B01J31/16 ,  C07C47/222

Abstract: Production of 4-alkynals by 1,4-addition of terminal alkynes to alpha ,beta -unsaturated aldehydes is effected in presence of a catalyst system comprising a ruthenium catalyst complex and a cyclic tertiary amine co-catalyst which is such that in the case of heteroaromatic nitrogen compounds there are no hydrogen atoms in the a/a> position. Independent claims are also included for (1) preparation of p-cymene-ruthenium halide catalyst complex; (2) preparation of 4-alkyne acids, 2,4-diene acids, 4-alkenals (cis and/or trans) or 2,4- dienals, all from 4-alkynals; and (3) preparation of 2,6-nonadiene nitrile from 4- heptynal.