Patent · US Expired

Apparatus and method for the separation of a viscous mixture

US5229000A · kind A · utility

5Cited by

4References

26Claims

0Family size

Assignee

Fried Krupp · DE

Inventors

Hedi Ben-Nasr · Gelsenkirchen, DE
Ernst Kriegel · Essen, DE
Klaus Reimann · Eindhoven, NL

Key dates

Filing date	Mar 26, 1991
Grant date	Jul 20, 1993
Priority date	—
Expiry date	Mar 26, 2011

Classification

Technology area (CPC A)Human Necessities
CPC primaryA23V2002/00
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method and apparatus for the separation of viscous mixtures, comprising charging the mixture with solvent to form a dispersion before extraction to improve the extraction over a simple solvent extraction. The mixture to be treated is charged with solvent before the extraction and is then sprayed into the extraction column where it is dispersed. This treatment provides extraction of highly viscous, pasty materials. The charging with solvent can take place until the mixture is saturated with the solvent, and favorable temperature and pressure conditions for charging may be provided in a charging column that is separate from the extraction column.

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