Patent · US Expired

Method for removal of water from activated carbon

US4286390A · kind A · utility

4Cited by
4References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 20, 1980
Grant dateSep 1, 1981
Priority date
Expiry dateMar 20, 2000

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC01B32/378
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A method of removing water from activated carbon is disclosed. Briefly, the method comprises (a) passing liquid 1,2-dichloroethane through a bed of activated carbon until a bulk water phase ceases to exit the bed or until from about 60 to about 80 weight percent of the water present in a water-saturated bed has been removed and (b) removing substantially all of the remainder of the water present by use of vacuum or by passing hot air or hot nitrogen through the activated carbon.

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