The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 1996
Filed:
Sep. 01, 1994
Applicant:
Inventors:
Jung-Min Lee, Taejon, KR;
Jeong-Kwon Suh, Taejon, KR;
Soon-Yong Jeong, Taejon, KR;
Chun-Hee Park, Seoul, KR;
Jeong-Hwan Park, Taejon, KR;
Assignee:
Korea Research Institute of Chemical Technology, Taejon, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423332 ; 423333 ;
Abstract
An improved layered sodium silicate having a .delta. crystalline structure and a process for preparing it is described. By pulverizing anhydrous sodium silicate into an anhydrous sodium silicate powder, adding a limited mount of water to form a mixture granulating the mixture, and directly calcining the granules, a layered sodium silicate having improved calcium ion binding capacity and magnesium ion binding capacity can be produced.