Patent · US Expired

Method and device for exploiting heat resulting from the production of 1,2-dichloroethane

US7182840B1 · kind B1 · utility

2Cited by

11References

5Claims

0Family size

Assignee

UHDE GMBH · DE

Inventors

Michael Benje · Darmstadt, DE
Peter Porscha · Kelkheim, DE
Stefan Von Egelstein · Großostheim, DE

Key dates

Filing date	Oct 28, 2000
Grant date	Feb 27, 2007
Priority date	—
Expiry date	Oct 28, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S203/09
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a method and a device for the optimal use of reaction heat resulting from the production of 1,2-dichloroethane from ethene and chlorine. The aim of the invention is achieved by extracting reaction heat liberated during the reaction of chlorine with ethene and the reaction heat contained in 1,2-dichloroethane. Extraction of said reaction heat from the reaction chamber occurs using at least one part of gaseous 1,2-dichloroethane (latent heat) and at least one part of liquid 1,2-dichloroethane (feelable heat) removed from the reaction chamber. Said reaction heat is used to heat two fractioning columns in order to purify 1,2-dichloroethane of impurities having a boiling point higher than 1,2-dichloroethane.

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