Patent · US Expired

Method of manufacturing green hot briquettes from fine coal for use in shaft furnaces

US4159905A · kind A · utility

0Cited by

5References

3Claims

0Family size

Assignees

Bergwerksverband GmbH · DE
Rheinstahl Huttenwerke AG · DE

Inventors

Werner Peters
Josef Langhoff · Dinslaken, DE
Siegfried Henkel · Lichtenberg, DE
Klaus D. Haverkamp · Gelsenkirchen, DE

Key dates

Filing date	Jan 24, 1975
Grant date	Jul 3, 1979
Priority date	—
Expiry date	Jan 24, 1995

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10L5/02
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A method of manufacturing a briquetted coke from fine coal comprises carbonizing the coal at a temperature of from around 600.degree. to 900.degree. C., mixing the carbonized coal with approximately 10 to 80% and preferably from 20 to 40% of fine coal well caking coal, and thereafter hot briquetting the mixture at temperatures of from around 300.degree. to 500.degree. C. A fuel for shaft furnaces preferably includes the use of the hot briquettes as the only solid fuel in the shaft furnace, and it is particularly applicable for blast furnaces.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.