Patent · US Expired

Aqueous slurries of solid carbonaceous fuel

US4623359A · kind A · utility

7Cited by
13References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 20, 1984
Grant dateNov 18, 1986
Priority date
Expiry dateAug 20, 2004

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09K23/02
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Aqueous slurries of solid carbonaceous fuel that include a novel highly converted sulfonated surfactant derived from a suspension of low rank coal and coal derived creosote oil for reducing the viscosity and increasing the solids content of the aqueous slurry.

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