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:
Jul. 08, 1986
Filed:
Feb. 22, 1985
Applicant:
Inventors:
Lars L Stigsson, Lund, SE;
Bjorn Lindman, Lund, SE;
Assignee:
Fluidcarbon International AB, Malmo, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10L / ;
U.S. Cl.
CPC ...
44 51 ; 44 66 ; 260403 ;
Abstract
A storage stable aqueous pulverized-coal dispersion can be pumped and can be burned by conventional techniques. The dispersion comprises stabilizing additives and a coal content which ranges from 60 to 80% by weight. The additives include a combination of (a) sufficient lecithin adsorbed on surfaces of coal particles to provide repulsion between the coal particles by hydration forces and (b) polymer cooperating with the lecithin and comprising at least one polymer having segments of hydrophobic as well as segments of hydrophilic character.