Patent · US Expired

Multi-phase separation methods and apparatus

US4294695A · kind A · utility

12Cited by
10References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 8, 1977
Grant dateOct 13, 1981
Priority date
Expiry dateJul 8, 1997

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10G21/18
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Multi-phase mixtures are resolved into separate phases by introducing the mixture into a body of liquid which contains a solvent for one of said phases and has a specific gravity intermediate two insoluble phases of the mixture. The latter accordingly migrate to different levels in the body of liquid and can be separately recovered therefrom. Solvent laden with the soluble phase is also separately removed from the body of liquid, and the solvent can then be stripped to isolate the soluble phase.

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