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公开(公告)号：DE2619084A1
公开(公告)日：1977-12-01
申请号：DE2619084
申请日：1976-05-03
Applicant: BASF AG
Inventor： OSTERTAG WERNER DIPL CHEM DR , EBENHOECH FRANZ LUDWIG DIPL CH , WUNSCH GERD DIPL CHEM DR , VOELKL ERFRIED DIPL CHEM DR , MADER THEODOR DIPL ING
Abstract: Finely divided metal oxides produced by combustion of metal carbonyls are separated from the stream of gas by filtration. Before filtration, the stream of gas is subjected to a permanent change of direction in a tubular zone. This change of direction must be sufficient to cause a centrifugal acceleration which is from at least 1,000 to 10,000 times the acceleration due to gravity.
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公开(公告)号：DE3216362A1
公开(公告)日：1982-11-25
申请号：DE3216362
申请日：1982-05-03
Applicant: BASF AG
Inventor： APPL MAX DIPL CHEM DR , EBENHOECH FRANZ LUDWIG DIPL CH , SCHLEGEL REINHOLD , VOELKL ERFRIED DIPL CHEM DR
Abstract: For the production of iron powders largely free from carbon, nitrogen and oxygen, the said powders are treated with hydrogen at elevated temperatures, with the addition of an organic substance. There is used as the iron powder one which has been obtained by the decomposition of an iron pentacarbonyl in the presence of an oil which volatilises with difficulty.
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公开(公告)号：DE3208325A1
公开(公告)日：1982-09-23
申请号：DE3208325
申请日：1982-03-09
Applicant: BASF AG
Inventor： APPL MAX DIPL CHEM DR , EBENHOECH FRANZ LUDWIG DIPL CH , SCHLEGEL REINHOLD , VOELKL ERFRIED DIPL CHEM DR
Abstract: Iron oxide pigments with covering properties are obtained by combustion of iron carbonyl. For this purpose, the iron pentacarbonyl is introduced into a layer of iron oxides which is moved mechanically and oxidised to iron oxides at temperatures of 100 to 400 DEG C.
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