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:
Jan. 30, 1990
Filed:
Jun. 25, 1987
Applicant:
Inventors:
Assignees:
Katayama Chemical Works Co., Ltd., Osaka, JP;
Nippon Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210729 ; 252194 ; 252 60 ; 210770 ; 210728 ; 210732 ; 210778 ;
Abstract
A composition for promoting dewatering of granulated slag which comprises the combination of an anionic polyether sulfate surfactant with a cationic nitrogen-containing surfactant and optionally a defoaming agent, and a process for promoting dewatering of granulated slag using such composition, which are useful for preparing granulated slag having a moisture content of 4% or less as a material for cement.