Patent · US Expired

Upgrading solid fuels

US4627575A · kind A · utility

4Cited by
3References
23Claims
0Family size

Assignees

Inventors

Key dates

Filing dateFeb 15, 1984
Grant dateDec 9, 1986
Priority date
Expiry dateFeb 15, 2004

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10L5/04
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A fuel of increased density and calorific value is produced by subjecting brown coal to shearing forces to produce a wet plastic mass which is subsequently compacted and dried.

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