公开(公告)号：EP1025042A1

公开(公告)日：2000-08-09

申请号：EP98904128.0

申请日：1998-01-23

申请人： H.C. Starck GmbH & Co. KG ,  FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DERANGEWANDTEN FORSCHUNG E.V.

发明人： GILLE, Gerhard ,  GRIES, Benno ,  VON RUTHENDORF-PRZEWOSKI, Monika ,  BERGER, Lutz-Michael ,  RICHTER, Volkmar

IPC分类号： C01B21/082 ,  C22C1/05 ,  C22C29/04

CPC分类号： C22C1/051 ,  C01B21/0828 ,  C01P2002/77 ,  C01P2004/03 ,  C01P2004/61 ,  C22C29/04

摘要： The present invention relates to a method for producing carbonitride powders of the metals of the fourth, fifth and sixth subgroups of the periodic table of elements by calcination of mixtures of corresponding double oxides or multiple oxides, soot and possibly other carbon-containing compounds in an atmosphere containing nitrogen. The invention also relates to carbonitride powders of the metals of the fourth, fifth and sixth subgroups of the periodic table of elements having a mean particle size d50 of less than 5 νm, oxygen and free carbon contents of less than 0.1 weight percent each, as well as impurities of metals belonging to the iron group amounting to less than 0.15 weight percent. The invention further relates to a two-phase titanium-zirconium-carbonitride powder with a mean particle size d50 of less than 5 νm, and a single-phase titanium-zirconium-carbonitride powder with an equimolar Zr:Ti ratio, a nitrogen content of up to 10 weight percent nitrogen, and a mean particle size d50 of less than 5 νm. In addition, the invention relates to the use of said carbonitride powders.

公开(公告)号：EP1079950A1

公开(公告)日：2001-03-07

申请号：EP99923562.5

申请日：1999-05-08

申请人： H.C. Starck GmbH & Co. KG

发明人： MENDE, Bernd ,  GILLE, Gerhard ,  GRIES, Benno ,  AULICH, Peter ,  MÜNCHOW, Jörg

IPC分类号： B22F9/22

CPC分类号： B22F9/22 ,  B22F2998/00 ,  C22C1/051 ,  C22C26/00

摘要： The invention relates to a method for producing metal and alloy powders containing at least one of the metals iron, copper, tin, cobalt or nickel. According to the method an aqueous solutions of metal salts is mixed with an aqueous carboxylic acid solution, the precipitation product is separated from the mother liquor and the precipitation product is reduced to metal.

公开(公告)号：EP1140698A1

公开(公告)日：2001-10-10

申请号：EP99957982.4

申请日：1999-11-03

申请人： H.C. Starck GmbH & Co. KG

发明人： GILLE, Gerhard ,  GRIES, Benno ,  BREDTHAUER, Jörg

IPC分类号： C01B31/34 ,  C04B35/56

CPC分类号： B82Y30/00 ,  C01B32/949 ,  C01P2004/03 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/80

摘要： The invention relates to a method for producing wolfram carbides by gas-phase carburetion of wolfram powders and/or suitable wolfram precursor compounds in powder form at temperatures above 850 °C. According to the method a CO2/CO mixture with a CO2 content greater than the Boudouard equilibrium content corresponding to the carburetion temperature is used as carburetion gas phase.

公开(公告)号：EP1297199A1

公开(公告)日：2003-04-02

申请号：EP01943480.2

申请日：2001-06-06

申请人： H.C. Starck GmbH & Co. KG

发明人： OLBRICH, Armin ,  GÖRGE, Astrid ,  SCHRUMPF, Frank ,  MEESE-MARKTSCHEFFEL, Juliane ,  STOLLER, Viktor ,  GILLE, Gerhard ,  SCHMOLL, Josef ,  KRUFT, Michael ,  NAUMANN, Dirk

IPC分类号： C25B1/00

CPC分类号： C25B1/00

摘要： The invention relates to a method for producing metal hydroxides or alkaline metal carbonates by anode dissolution of the corresponding metals and precipitation of the hydroxides or alkaline carbonates in an aqueous medium. The anode dissolution of the metal components is carried out in the anode compartment of a three-compartment electrolytic cell. An aqueous auxiliary salt solution is fed to an intermediate compartment that is disposed between the anode compartment and the cathode compartment and that is separated therefrom by a porous membrane. An at least not alkaline metal salt solution is continuously taken from the anode compartment while an alkaline auxiliary salt solution is continuously taken from the cathode compartment. The at least not alkaline metal salt solution and the alkaline auxiliary salt solution are combined outside the electrolytic cell for the purpose of precipitating metal hydroxides or alkaline metal carbonates.

公开(公告)号：EP2097549A2

公开(公告)日：2009-09-09

申请号：EP07847463.2

申请日：2007-11-28

申请人： H.C. Starck GmbH & Co. KG

发明人： MENDE, Bernd ,  GILLE, Gerhard ,  LAMPRECHT, Ines

IPC分类号： C22C38/10 ,  B22F9/22

CPC分类号： B22F9/22 ,  C22C33/0207 ,  C22C33/0285 ,  C22C38/10 ,  C22C38/12

摘要： The invention relates to novel pre-alloyed metal powders a method for production and use thereof.

摘要翻译： 本发明涉及新型预合金化金属粉末及其生产和使用方法。

公开(公告)号：EP1190114B1

公开(公告)日：2004-03-17

申请号：EP00934961.4

申请日：2000-04-25

申请人： H.C. Starck GmbH & Co. KG

发明人： OLBRICH, Armin ,  STOLLER, Viktor ,  MEESE-MARKTSCHEFFEL, Juliane ,  SCHRUMPF, Frank ,  SCHMOLL, Josef ,  GILLE, Gerhard

IPC分类号： C25B1/00 ,  H01M4/52

CPC分类号： C25B1/00

摘要： The invention relates to a method for producing spherical nickel hydroxide by anodically dissolving a nickel electrode and by precipitating nickel hydroxide in a completely and thoroughly mixed electrolysis cell. An electrolysis brine with a content of 20 to 50 g/l chloride ions and 1 to 7 g/l ammonia with a pH-value of 9.5 to 11.5 and a temperature of 45 to 60° C is used.

公开(公告)号：EP1190114A1

公开(公告)日：2002-03-27

申请号：EP00934961.4

申请日：2000-04-25

申请人： H.C. Starck GmbH & Co. KG

发明人： OLBRICH, Armin ,  STOLLER, Viktor ,  MEESE-MARKTSCHEFFEL, Juliane ,  SCHRUMPF, Frank ,  SCHMOLL, Josef ,  GILLE, Gerhard

IPC分类号： C25B1/00 ,  H01M4/52

CPC分类号： C25B1/00

摘要： The invention relates to a method for producing spherical nickel hydroxide by anodically dissolving a nickel electrode and by precipitating nickel hydroxide in a completely and thoroughly mixed electrolysis cell. An electrolysis brine with a content of 20 to 50 g/l chloride ions and 1 to 7 g/l ammonia with a pH-value of 9.5 to 11.5 and a temperature of 45 to 60° C is used.