Patent · US Expired

Apparatus for separating a solid substance from a liquid mixture of substances

US4812233A · kind A · utility

16Cited by

6References

4Claims

0Family size

Assignee

Fried Krupp · DE

Inventors

Hubert Coenen · Essen, DE
Rainer Hagen · Leverkusen, DE
Klaus Reimann · Eindhoven, NL

Key dates

Filing date	Oct 15, 1986
Grant date	Mar 14, 1989
Priority date	—
Expiry date	Oct 15, 2006

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D11/0203
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Apparatus for separating solid substances from liquid mixtures of substances, wherein the liquid substances contained in the mixture are separated from the solid substances by countercurrent extraction with a solvent which, during the extraction process, is in a liquid or supercritical state and which, under standard conditions, is gaseous. The solvent is fed to a cylindrical extraction chamber at the lowest point of the extraction chamber. The solvent leaves the nozzles with a Reynold's number of 40,000 and flows upward in the extraction chamber with a Reynold's number of 2,700 to 8,000.

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