公开(公告)号：FI914316A0

公开(公告)日：1991-09-13

申请号：FI914316

申请日：1991-09-13

Applicant: BASF AG

Inventor： AICHINGER HEINRICH ,  BOEHNING KARL-HEINZ ,  HERZOG KLAUS ,  WISTUBA HERMANN ,  BUERGER GERT ,  SCHWARZMANN MATTHIAS ,  HERRMANN GUENTER

IPC: B01D53/94 ,  B01D53/86 ,  B01J23/50 ,  B01J35/10 ,  B01J

Abstract: In a catalyst for the decomposition of nitrous oxide, pure or in gaseous mixtures, metallic silver is applied to an alumina support having a BET surface area of 5 to 25 m /g.

公开(公告)号：GB2127427B

公开(公告)日：1986-05-08

申请号：GB8320552

申请日：1983-07-29

Applicant: BASF AG

Inventor： HOELDERICH WOLFGANG ,  MROSS WOLF DIETER ,  SCHWARZMANN MATTHIAS

IPC: B01J29/86 ,  B01J37/24 ,  C07C1/20 ,  C07C1/24

公开(公告)号：GB2127427A

公开(公告)日：1984-04-11

申请号：GB8320552

申请日：1983-07-29

Applicant: BASF AG

Inventor： HOELDERICH WOLFGANG ,  MROSS WOLF DIETER ,  SCHWARZMANN MATTHIAS

IPC: B01J29/86 ,  B01J37/24 ,  C07C1/20 ,  C07C1/24

Abstract: C2-C4-olefins are prepared by converting methanol and/or dimethyl ether in the presence of a zeolite catalyst at elevated temperatures by a process wherein the catalyst used is a borosilicate zeolite which has been moulded together with a binder and then treated with hydrochloric acid. Aluminium oxide and/or amorphous aluminosilicates are suitable binders.

公开(公告)号：CA1144912A

公开(公告)日：1983-04-19

申请号：CA344609

申请日：1980-01-29

Applicant: BASF AG

Inventor： MROSS WOLF D ,  TITZENTHALER ECKART ,  KOOPMANN JUERGEN ,  VOGT VOLKER ,  SCHWARZMANN MATTHIAS

IPC: B01J23/66 ,  B01J23/96 ,  B01J38/48 ,  C07B61/00 ,  C07D301/10 ,  B01J23/50

Abstract: Supported catalysts containing silver and alkali metals, for the preparation of ethylene oxide from ethylene and oxygen in the gas phase, are prepared or regenerated by modifying, respectively, a new or spent supported catalyst which already contains metallic silver and may or may not contain the light alXall metals lithium and/or sodium and, where a spent Catalyst is concerned, also contains the heavy alkali metals potassium, rubidium and/or cesium with asolution containing the heavy alkali metals, the modifier solution used containing a) a surfactant and/or a reducing agent, in the case of the preparation of a new catalyst or b) a surfactan, in the case of the regeneration of a spent catalyst,

公开(公告)号：CA1020591A

公开(公告)日：1977-11-08

申请号：CA185730

申请日：1973-11-14

Applicant: BASF AG

Inventor： BROECKER FRANZ J ,  ZIRKER GUENTER ,  TRIEBSKORN BRUNO ,  MAROSI LASZLO ,  SCHWARZMANN MATTHIAS ,  DETHLEFSEN WINFRIED ,  KAEMPFER KNUT

IPC: B01J23/755 ,  B01J37/08 ,  C07B61/00 ,  C07C1/00 ,  C07C4/00 ,  C07C4/06 ,  C07C9/04 ,  C07C67/00

公开(公告)号：FI770378A

公开(公告)日：1977-09-07

申请号：FI770378

申请日：1977-02-03

Applicant: BASF AG

Inventor： ADOLPHI HEINRICH ,  SCHWARZMANN MATTHIAS ,  HEINZE PETER

IPC: A01N41/04 ,  B27K3/36 ,  A01N

Abstract: Wood preservatives for protecting wood or wood-base materials against animal pests, and which contain a perfluoroalkane sulfonate of the formula C nF2n+1-SO3 M where n is one of the integers from 1-14 and M denotes hydrogen or a cation, and a process for protecting wood or wood-base materials against animal pests with these compounds.

公开(公告)号：CA854204A

公开(公告)日：1970-10-20

申请号：CA854204D

Applicant: BASF AG

Inventor： MOHR RUDOLPH ,  WOEHRLE HORST ,  LEONHARD KARL W ,  FROMM HERMANN D ,  SCHWARZMANN MATTHIAS

公开(公告)号：GB1092761A

公开(公告)日：1967-11-29

申请号：GB1286465

申请日：1965-03-26

Applicant: BASF AG

Inventor： HAMPRECHT GUENTHER ,  FROMM HERMANN DIETER ,  SCHWARZMANN MATTHIAS ,  VOGEL LUDWIG

IPC: C07C273/16

Abstract: Urea is recovered from the off-gas obtained in a melamine sythesis from urea in the gas phase and in the presence of catalysts and which has been freed from melamine by fractional condensation at from 150 DEG to 200 DEG C., by bringing said off-gas into intimate contact with a melt of urea or a melt of urea and its thermal decomposition products, both of which are kept up to 50 DEG C. above their melting temperature. Thermal decomposition products which may be present in the urea melt are biuret, triuret, cyanuric acid, ammeline, ammelide, melamine or melamine cyanurate. The presence of 20-25% biuret (obtained by blowing with CO2) is preferred, since this depresses the melting point and allows a very cool melt to be used. Portions of the melt are preferably drawn off after use and passed to the melamine synthesis reactor.

公开(公告)号：CA742221A

公开(公告)日：1966-09-06

申请号：CA742221D

Applicant: BASF AG

Inventor： HAMPRECHT GUENTHER ,  ROTHER EBERHARD ,  FROMM HERMANN D ,  SCHWARZMANN MATTHIAS

公开(公告)号：CA742220A

公开(公告)日：1966-09-06

申请号：CA742220D

Applicant: BASF AG

Inventor： HAMPRECHT GUENTHER ,  ROTHER EBERHARD ,  SCHWARZMANN MATTHIAS ,  FROMM HERMANN D