Patent · US Expired

Preparation of vinyl chloride by thermal cracking of 1,2-dichloroethane

US4720599A · kind A · utility

2Cited by

3References

2Claims

0Family size

Assignee

BASF SE

Inventors

Werner Hebgen · Schallstadt, DE
Eckehard Danz · Ludwigshafen, DE
Gerd Krome
Erhard Stahnecker · Heidelberg, DE

Key dates

Filing date	Oct 9, 1984
Grant date	Jan 19, 1988
Priority date	—
Expiry date	Oct 9, 2004

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2219/00006
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for the preparation of vinyl chloride by vaporizing liquid 1,2-dichloroethane, thermally cracking the 1,2-dichloroethane and cooling the hot reaction mixture by means of cooled and condensed portions of the reaction mixture, wherein a defined amount of the 1,2-dichloroethane is taken off as liquid in or downstream of the vaporizer and mixed with a defined amount of the cooled liquid portion of the reaction mixture, the mixture is distilled and the constituents taken off the top of the distillation column are mixed with the liquid 1,2-dichloroethane upstream of the vaporizer while the constituents taken off the bottom of the distillation column are worked up by distillation.

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