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公开(公告)号：DE19706524A1
公开(公告)日：1998-08-20
申请号：DE19706524
申请日：1997-02-19
Applicant: BASF AG
Inventor： LEUTNER BERND DR , FRIEDRICH GABRIELE DR , SCHLEGEL REINHOLD
Abstract: A process for producing finely divided phosphorus-containing iron involves gaseous phase reaction of iron pentacarbonyl with a phosphorus compound, preferably phosphine. Preferably, the reaction is carried out in the presence of ammonia at above 200 degrees C. Also claimed is a finely divided phosphorus-containing iron which consists of spherical particles with 1-10 mu mean particle diameter or of filament aggregates of spheres with 0.2-3 mu diameter. Preferably, the iron contains 0.1-50 wt.% P, less than 1 wt.% C, less than 1 wt.% N, less than 0.5 wt.% H and less than 0.1 wt.% total of other impurity elements and is produced by the above process. Further claimed is apparatus for carrying out the above process, including a heated decomposition tube, devices for producing two different temperature zones, for evaporating liquid iron pentacarbonyl and for gas dosing and mixing, and a separator for finely divided phosphorus-containing iron.
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公开(公告)号：DE19706525A1
公开(公告)日：1998-08-20
申请号：DE19706525
申请日：1997-02-19
Applicant: BASF AG
Inventor： LEUTNER BERND DR , FRIEDRICH GABRIELE DR , SCHLEGEL REINHOLD
Abstract: A process for producing phosphorus-containing iron powder involves heating a mixture of finely divided carbonyl iron and elemental phosphorus and pulverising the product. Preferably, a mixture of 70-99 wt.% finely divided carbonyl iron powder and 1-30 wt.% red phosphorus is heated at above 300 degrees C in an inert gas atmosphere. Also claimed is a phosphorus-containing iron powder of less than 10 mu mean particle diameter, containing 0.1-80 wt.% P, less than 1 wt.% C, less than 1 wt.% N, less than 0.5 wt.% H and less than 0.1 wt.% total of other impurity elements except oxygen.
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公开(公告)号：ES2157619T3
公开(公告)日：2001-08-16
申请号：ES98102700
申请日：1998-02-17
Applicant: BASF AG
Inventor： LEUTNER BERND DR , FRIEDRICH GABRIELE DR , SCHLEGEL REINHOLD
Abstract: A process for producing phosphorus-containing iron powder involves heating a mixture of finely divided carbonyl iron and elemental phosphorus and pulverising the product. Preferably, a mixture of 70-99 wt.% finely divided carbonyl iron powder and 1-30 wt.% red phosphorus is heated at above 300 degrees C in an inert gas atmosphere. Also claimed is a phosphorus-containing iron powder of less than 10 mu mean particle diameter, containing 0.1-80 wt.% P, less than 1 wt.% C, less than 1 wt.% N, less than 0.5 wt.% H and less than 0.1 wt.% total of other impurity elements except oxygen.
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公开(公告)号：AT201053T
公开(公告)日：2001-05-15
申请号：AT98102700
申请日：1998-02-17
Applicant: BASF AG
Inventor： LEUTNER BERND DR , FRIEDRICH GABRIELE DR , SCHLEGEL REINHOLD
Abstract: A process for producing phosphorus-containing iron powder involves heating a mixture of finely divided carbonyl iron and elemental phosphorus and pulverising the product. Preferably, a mixture of 70-99 wt.% finely divided carbonyl iron powder and 1-30 wt.% red phosphorus is heated at above 300 degrees C in an inert gas atmosphere. Also claimed is a phosphorus-containing iron powder of less than 10 mu mean particle diameter, containing 0.1-80 wt.% P, less than 1 wt.% C, less than 1 wt.% N, less than 0.5 wt.% H and less than 0.1 wt.% total of other impurity elements except oxygen.
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