Title:
PYROGENICALLY PRODUCED SURFACE-MODIFIED MIXED OXIDE AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3202573
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain mixed oxide powder having various functions by incorporating ≥2 metal oxides into the powder, subjecting the mixture to surface modulation with ≥1 organosilane and subjecting the mixture to a pyrogenical treatment.
SOLUTION: The ≥2 mixed oxides from SiO2, Al2O3, TiO2, ZrO2, Fe2O3, Nb2O5, V2O5, WO3, SnO2 and GeO2 are obtd. by vaporizing ≥2 metal chlorides selected from among SiCl4, AlCl3, TiCl4, ZrCl4, FeCL3, NbCl3, VOCl3, WOCl4, WCl6, SnCl4 and GeCl4, mixing these metal chlorides with hydrogen, air and/or oxygen in the mixing chamber and combusting the mixture in a reaction chamber. The mixed oxides are charged into a suitable mixing vessel and are subjected to a surface treatment by spraying ≥1 surface modifying organosilane. In succession, the mixed oxides are heat treated for 1 to 6 hours at 100 to 400°C, by which the pyrogenically prepd. surface-modified mixed oxides are obtd.
Inventors:
Manfred ettlinger
Werner Hartmann
Dieter Kellner
Jürgen Meier
Werner Hartmann
Dieter Kellner
Jürgen Meier
Application Number:
JP410896A
Publication Date:
August 27, 2001
Filing Date:
January 12, 1996
Export Citation:
Assignee:
Degussa-Hüls Akchen Gesell Shaft
International Classes:
A61K8/19; A61K8/25; A61K8/58; A61Q17/04; C01B33/18; C01G23/04; C01G49/00; C01G25/02; C08K9/06; C08L21/00; C08L83/04; C09C1/00; C09C1/22; C09C1/36; C09C1/40; C09C3/12; C09D7/45; C09K3/00; C09K15/02; G03G9/097; (IPC1-7): C01G23/04; C01B33/18; C01G25/02; C01G49/00; C08L83/04
Domestic Patent References:
| JP572797A | ||||
| JP62230618A |
Other References:
【文献】英国特許1031764(GB,B)
【文献】英国特許1592802(GB,B)
【文献】英国特許1371219(GB,B)
【文献】英国特許1371218(GB,B)
【文献】英国特許出願公開2056995(GB,A)
【文献】西独国特許出願公開1916360(DE,A1)
【文献】仏国特許出願公開2196376(FR,A1)
【文献】欧州特許出願公開417866(EP,A1)
【文献】欧州特許出願公開212870(EP,A1)
【文献】英国特許1592802(GB,B)
【文献】英国特許1371219(GB,B)
【文献】英国特許1371218(GB,B)
【文献】英国特許出願公開2056995(GB,A)
【文献】西独国特許出願公開1916360(DE,A1)
【文献】仏国特許出願公開2196376(FR,A1)
【文献】欧州特許出願公開417866(EP,A1)
【文献】欧州特許出願公開212870(EP,A1)
Attorney, Agent or Firm:
Toshio Yano (3 outside)