公开(公告)号：US3872135A

公开(公告)日：1975-03-18

申请号：US37517773

申请日：1973-06-29

Applicant: BASF AG

Inventor： REINICKE HELMUT ,  STOCKBURGER DIETER ,  TEUTSCH THEO ,  VOGEL LUDWIG ,  WISTUBA HERMANN ,  ENGELBACH HEINZ

IPC: C07C50/18 ,  C07C20060101 ,  C07C45/00 ,  C07C67/00 ,  C09B1/00

CPC classification number: C07C46/02

Abstract: Separation of anthraquinone from a mixture of its vapor with a carrier gas by treating the hot gas-vapor mixture with an aqueous suspension of anthraquinone. The anthraquinone produced according to the process of the invention is a valuable intermediate for the production of dyes and pesticides.

Abstract translation: 通过用蒽醌的水性悬浮液处理热气体 - 蒸气混合物，将蒽醌与其蒸汽与载气的混合物分离。 根据本发明方法生产的蒽醌是生产染料和农药的有价值的中间体。

公开(公告)号：JPS62226818A

公开(公告)日：1987-10-05

申请号：JP24565886

申请日：1986-10-17

Applicant: BASF AG

Inventor： MUELLER NORBERT ,  BOETTCHER BERNHARD ,  OHLINGER MANFRED ,  REINICKE HELMUT ,  HONECKER GERHARD

IPC: H01F1/11 ,  C01G37/02 ,  C01G37/027 ,  G11B5/706 ,  H01F1/10

公开(公告)号：CA1020939A

公开(公告)日：1977-11-15

申请号：CA175353

申请日：1973-06-29

Applicant: BASF AG

Inventor： REINICKE HELMUT ,  STOCKBURGER DIETER ,  TEUTSCH THEO ,  VOGEL LUDWIG ,  WISTUBA HERMANN ,  ENGELBACH HEINZ

IPC: C07C50/18 ,  C07C20060101 ,  C07C45/00 ,  C07C67/00 ,  C09B1/00

公开(公告)号：DE3680905D1

公开(公告)日：1991-09-19

申请号：DE3680905

申请日：1986-10-18

Applicant: BASF AG

Inventor： MUELLER NORBERT ,  BOETTCHER BERNHARD ,  OHLINGER MANFRED ,  REINICKE HELMUT ,  HONECKER GERHARD

IPC: H01F1/11 ,  C01G37/02 ,  C01G37/027 ,  G11B5/706 ,  H01F1/10

Abstract: Prodn. of Cr2O3 is effected by thermal decompsn. of hydrous NH4 bichromate (I) at 450-750 deg.C in a restricted combustion chamber such that the ratio of the vol. of the combustion chamber in l, to the flow rate of (I) in kg/min. is 1-6:1. Pref. decompsn. is effected in a combustion chamber attached to the feed inlet of a rotary furnace, the material emerging from the combustion chamber being post-reacted in the furnace at sub-decompsn. temp. before being discharged from the other end. The combustion chamber has a dia./length ratio of 1:2 2:1. The ratio of the dia. of the combustion chamber to the dia. of the furnace is 1-3:4.

公开(公告)号：DE3609971A1

公开(公告)日：1987-10-01

申请号：DE3609971

申请日：1986-03-25

Applicant: BASF AG

Inventor： MUELLER NORBERT ,  BOETTCHER BERNHARD ,  OHLINGER MANFRED ,  REINICKE HELMUT ,  HONECKER GERHARD

IPC: H01F1/11 ,  C01G37/02 ,  C01G37/027 ,  G11B5/706 ,  H01F1/10 ,  C09C1/34 ,  F27B9/02

Abstract: A process for the preparation of chromium(III) oxide by decomposing hydrated ammonium dichromate at elevated temperatures, an apparatus for carrying out this process and the use of the chromium(III) oxide thus prepared as a starting material for the synthesis of chromium dioxide.