公开(公告)号：DE59705610D1

公开(公告)日：2002-01-17

申请号：DE59705610

申请日：1997-03-26

Applicant: BASF AG

Inventor： STERZEL DR ,  HESSE DR ,  KLEINKE DR

IPC: B01J35/04 ,  B01J37/00 ,  B22F3/11 ,  B01D39/20 ,  B28B3/20 ,  C04B38/00 ,  C04B38/02 ,  C22C1/08

Abstract: Production of open-celled inorganic sintered foam products comprises (a) converting a dross material made of sinterable inorganic powder, a vaporisable material and optionally a material forming a propellent gas, in a foaming stage with release of the propellent into a foamed product, (b) treating the foamed product removing the flowability of the dross material forming an open-pored intermediate body, where steps (a) and (b) are carried out simultaneously, (c) removing material from the intermediate body forming a green foamed body to the foam product. Also claimed is a porous body made of sintered inorganic particles of 0.1-50 mu m. size, and having a pore volume of 50-95%, a surface area of 0.01-1 m /g. and irregular pores.

公开(公告)号：DE502004001585D1

公开(公告)日：2006-11-09

申请号：DE502004001585

申请日：2004-11-12

Applicant: BASF AG

Inventor： UNGER GABRIELE DR ,  SCHOENFELDER HENDRIK DR ,  WATZENBERGER OTTO DR ,  STERZEL DR ,  KUEHLING KLAUS DR

IPC: C01G49/16 ,  B01J27/02

Abstract: Production of iron penta carbonyl by reaction of iron with carbon monoxide in a suspension is catalyzed by a mixture of an alkali sulfide and sulfur.

公开(公告)号：DE50105354D1

公开(公告)日：2005-03-24

申请号：DE50105354

申请日：2001-09-29

Applicant: BASF AG

Inventor： SCHIERLE-ARNDT DR ,  STERZEL DR ,  SCHLAEFER DR ,  GUTH JOSEF ,  FRIEDRICH DR ,  ZEHNER DR

IPC: B01J31/20 ,  B01J23/745 ,  C07B61/00 ,  C07C29/70 ,  C07C31/30

公开(公告)号：DE59802182D1

公开(公告)日：2002-01-03

申请号：DE59802182

申请日：1998-01-05

Applicant: BASF AG

Inventor： STERZEL DR

IPC: C04B35/00 ,  B22F3/00 ,  B22F3/02 ,  B22F3/11 ,  B22F3/22 ,  C04B35/638 ,  C04B35/65 ,  C22C1/04 ,  C22C1/05

Abstract: Moulding material containing 20-50 vol.% of a powder of one or more metal oxides, optionally together with metal carbides and/or nitrides which are not reduced by hydrogen, in a fluid binder, ≥ 65 vol.% of the powder having NOTGREATER 0.5 mu m particle size, with the remainder having NOTGREATER 1 mu m particle size, and ≥ 90 vol.% of the powder consisting of metal oxides, which are reduced by hydrogen. Preferably, the fluid binder is an organic polymer. Also claimed is the use of hydrogen-reducible metal oxides of particle size NOTGREATER 0.5 mu m for producing injection moulding materials. Further claimed is a method of producing metal mouldings by injection moulding the above moulding material, removing the binder and then reducing and sintering the resulting moulding in the presence of hydrogen.

公开(公告)号：DE59704834D1

公开(公告)日：2001-11-15

申请号：DE59704834

申请日：1997-05-07

Applicant: BASF AG

Inventor： STERZEL DR ,  HESSE DR

IPC: C01G25/02

Abstract: ZrO2 powder is produced by dissolving a chlorine-free zirconium compound in formic acid, removing the volatile components and calcining the residue. The powder can then be produced from this material using a known method such as spray drying.

公开(公告)号：DE59508447D1

公开(公告)日：2000-07-13

申请号：DE59508447

申请日：1995-09-02

Applicant: BASF AG

Inventor： STERZEL DR

IPC: B22F3/02 ,  B22F3/10 ,  B22F3/12 ,  B22F3/22

Abstract: The prodn. of injection moulded metal articles comprises: (a) moulding an injection moulding material, (b) partly removing the binder at 90-600 degrees C and (c) sintering on a support which has approx. the same contours as the finished moulding and retain these contours during the sintering process. Also claimed are moulded prods., esp. cutlery, obtd. by this process.