Patent · US Expired

Method for desulfurizing char by acid washing and treatment with hydrogen gas

US4054421A · kind A · utility

10Cited by
3References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 30, 1976
Grant dateOct 18, 1977
Priority date—
Expiry dateApr 30, 1996

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10L9/02
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

This invention covers a process for reducing the sulfur content of char by washing the char with an acid followed by treatment with hydrogen gas.

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