-
公开(公告)号：JPH10298616A
公开(公告)日：1998-11-10
申请号：JP3289798
申请日：1998-02-16
Applicant: BASF AG
Inventor： LEUTNER BERND DR , FRIEDRICH GABRIELE , SCHLEGEL REINHOLD
Abstract: PROBLEM TO BE SOLVED: To produce a fine phosphorus-containing iron having a low ratio of a second component composed of spheroidal particles or spherical particle filiform aggregate with the phosphorus content changeable in the wide range by heating and vaporizing liquefied iron pentacalbonyl and reacting with phosphorus compound under existence of ammonia in vapor phase. SOLUTION: The liquefied Fe(CO)5 is heated and vaporized by electric heating, and this vapor is introduced from the top part of a heatable decomposing tube together with NH3 by using 10-90% CO gas as carrier and reacted with PH3 in the vapor phase. The decomposing tube is set to have two kinds of different temp. zones, and the temp. at the bottom part is made higher than the temp. at the top part by e.g. >=20 deg.C. Further, NH3 in the gaseous mixture is about 0.1-10% and quantity of Fe(CO)5 excessively used is more than about ten times the necessary quantity. The reaction temp. is desirable to be >=200 deg.C. By this method, the fine phosphorus-containing iron composed of the sheroidal particles of 1-10 μm average particle diameter or the filiform aggregate of 1-3 μm spherical diameter and containing 0.1-50 wt.% P and
-
公开(公告)号：JP2000336484A
公开(公告)日：2000-12-05
申请号：JP2000050297
申请日：2000-01-21
Applicant: BASF AG
Inventor： SCHLEGEL REINHOLD , FRIEDRICH GABRIELE , REMMELE MICHAEL
IPC: C04B35/628 , B22F1/02 , C23C16/16 , C23C16/32 , C23C18/12
Abstract: PROBLEM TO BE SOLVED: To provide an easy and economical method for producing a metal coated hard material. SOLUTION: A soln., in which a hard material such as diamond, cubic boron nitride, boron carbide, silicon carbide and silicon nitride or the carbide, nitride, boride, silicide or the like of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium and molybdenum, and a hard material of metallic carbonyl such as iron pentacarbonyl are suspended, is heated and decomosed, and a metallic layer is formed on the surface of the hard material. Moreover, the metallic layer can be formed on the hard material from metallic carbonyl present in the state of the vapor phase.
-
公开(公告)号：JP2000086685A
公开(公告)日：2000-03-28
申请号：JP21543999
申请日：1999-07-29
Applicant: BASF AG
Inventor： SCHLEGEL REINHOLD , FRIEDRICH GABRIELE
Abstract: PROBLEM TO BE SOLVED: To produce an iron-silicon powder suitable for many kinds of uses by a simple and cheap method from elements. SOLUTION: An iron/silicon mixture comprising (a) 20-99.9 wt.% atomized iron carbonyl and (b) 0.1-80 wt.% atomized silicon powder, with the proviso that the total of the components (a) and (b) is 100 wt.%, is heat-treated to produce the objective iron carbonyl silicide.
-
公开(公告)号：JPH10298613A
公开(公告)日：1998-11-10
申请号：JP3588798
申请日：1998-02-18
Applicant: BASF AG
Inventor： LEUTNER BERND DR , FRIEDRICH GABRIELE , SCHLEGEL REINHOLD
Abstract: PROBLEM TO BE SOLVED: To produce phosphorous-contg. iron powder variable in the content of phosphorus in a wide range and extremely low in the content of inevitable components by mixing metallic iron in the form of pulverized carbonyl iron and a phosphorus element, executing heating to a relatively low temp. and pulverizing the obtd. product into powder. SOLUTION: Pulverized carbonyl iron as metallic iron and a phosphorus element are mixed, preferably, at the mass ratio of (99:1) to (70:30), and heating is executed. The pulverized carbonyl iron can be obtd. by subjecting carbonyl iron obtd. by thermally decomposing pentacarbonyliron in vapor phases to pulverization to about 1 to 10 μm average size, the content of C is regulated to, by weight, =300 deg.C, preferably, at about 380 to 550 deg.C in an inert gas atmosphere. The phosphorus element is used preferably in the form of red phosphorus.
-
公开(公告)号：DE19902000A1
公开(公告)日：2000-07-27
申请号：DE19902000
申请日：1999-01-21
Applicant: BASF AG
Inventor： SCHLEGEL REINHOLD , FRIEDRICH GABRIELE , REMMELE MICHAEL
Abstract: Production of metal-coated hard materials comprises producing the metal layer by decomposing metal carbonyls in the presence of the hard material.
-
Patent Agency Ranking
公开(公告)号：DE59805858D1
公开(公告)日：2002-11-14
申请号：DE59805858
申请日：1998-02-18
Applicant: BASF AG
Inventor： LEUTNER BERND , FRIEDRICH GABRIELE , 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.
-
公开(公告)号：AT225690T
公开(公告)日：2002-10-15
申请号：AT98102811
申请日：1998-02-18
Applicant: BASF AG
Inventor： LEUTNER BERND , FRIEDRICH GABRIELE , 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.
-
公开(公告)号：DE19945083A1
公开(公告)日：2001-03-22
申请号：DE19945083
申请日：1999-09-21
Applicant: BASF AG
Inventor： SCHLEGEL REINHOLD , FRIEDRICH GABRIELE
Abstract: Production of metal-coated hard materials comprises producing the metal layer by decomposing metal carbonyls in the presence of the hard material.
-
公开(公告)号：ES2185071T3
公开(公告)日：2003-04-16
申请号：ES98102811
申请日：1998-02-18
Applicant: BASF AG
Inventor： LEUTNER BERND , FRIEDRICH GABRIELE , 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.
-
公开(公告)号：DE19834236A1
公开(公告)日：2000-02-03
申请号：DE19834236
申请日：1998-07-29
Applicant: BASF AG
Inventor： SCHLEGEL REINHOLD , FRIEDRICH GABRIELE
Abstract: A process for the production of carbonyl-iron-silicide involves heating a mixture containing (a) 20-99.9 wt% finely-divided carbonyl-iron and (b) 0.1-80 wt% finely divided silicon powder. An Independent claim is also included for carbonyl-iron-silicide obtained by this process.
-
-
-
-
-
-
-
-
-
Search Results
10
records
(took 0.02 seconds)
