Title:
【発明の名称】欠陥に富む結晶質シリケート並びにかかるシリケートの製造方法
Document Type and Number:
Japanese Patent JP2906274
Kind Code:
B2
Abstract:
Crystalline microporous (metallo)silicates having a maximum M/Si molar ratio of 0.03, wherein M represents at least one of Al, Fe, B, Ga, or Ti, containing less than 1%wt of organic template (originated) material and having a Relative Defect Retention (RDR)-value of 0.1-1, wherein the RDR-value is defined as (C -C*)/(i - C*), wherein C represents the percentage of defects present, C* represents the percentage of defects retained when subjecting the corresponding at least 1 %wt of organic template (originated) material containing crystalline (metallo)silicate to a standard calcination treatment in air at a temperature of 550 DEG C for a period of 4 hours, wherein i represents the percentage of defects initially present in the uncalcined corresponding organic template containing (metallo)silicate, and wherein i>C*. Such (metallo)silicates are prepared by subjecting the uncalcined corresponding organic template containing (metallo)silicate to a heat treatment which is carried out in the presence of oxygen at a temperature of 400-600 DEG C and a pressure of at most 500 mbar for at least 1 hour.
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Inventors:
YOHANNESU YAKOBUSU KEIYASUPERU
MAATEIN FURANSHISUKASU MARIA HOSUTO
MAATEIN FURANSHISUKASU MARIA HOSUTO
Application Number:
JP14014990A
Publication Date:
June 14, 1999
Filing Date:
May 31, 1990
Export Citation:
Assignee:
SHERU INTERN RISAACHI MAACHATSUPII BV
International Classes:
B01J29/03; B01J29/04; B01J29/06; B01J29/40; B01J29/70; B01J29/86; B01J29/87; B01J29/88; B01J29/89; C01B33/20; C01B33/26; C01B35/12; C01B37/02; C01B39/00; C01B39/04; C01B39/12; C01B39/26; C01B39/38; C01B39/40; C01B39/44; (IPC1-7): C01B33/20; B01J29/03; B01J29/70; C01B33/26; C01B39/00
Attorney, Agent or Firm:
Kawahara Kazuho