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Title:
高金属性ケイ質組成物及び同一物を生成する方法
Document Type and Number:
Japanese Patent JP5389660
Kind Code:
B2
Abstract:
A modified sol-gel method to create metal-rich siliceous material, such as colloidal silica or aluminosilicate particles is disclosed. Initially, the metal salt of choice is added to a silicic acid solution or a silicic acid solution containing aluminum salt. The aluminum is added to vary the metal-support interaction as it forms Al—O—Si linkages within the silica matrix. Besides aluminum, other metals can be added that form M—O—Si (M=Ti, B, etc.) linkages, which do not become reduced when treated with a reducing agent. Once the metal, silicic acid and/or aluminum salt is generated, it is subjected to colloidal growth by addition to a basic heel. Upon colloidal synthesis, the metal salt containing colloidal particle is left as is to maximize colloidal stability or is reduced with hydrazine to produce the zero valence metal-containing colloidal particle. Keeping a particle colloidal before use may be an effective method of forming a catalyst material as it can be easily spray-dried or mixed with other materials for extruded catalyst particles.

Inventors:
Holland, Brian Tee.
Application Number:
JP2009535512A
Publication Date:
January 15, 2014
Filing Date:
November 08, 2007
Export Citation:
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Assignee:
NALCO COMPANY
International Classes:
B22F9/24; B22F1/00; B22F9/00; C01B33/141
Domestic Patent References:
JP7500379A
Foreign References:
WO2005104683A2
Attorney, Agent or Firm:
Patent Corporation yki International Patent Office



 
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