Patent · US Expired

Separation system and reducing the emission of solids in pressure relief processes in high pressure polymerization reactors

US4996026A · kind A · utility

0Cited by

11References

8Claims

0Family size

Inventors

Friedrich Kanne · Wesseling, DE
Klaus Pfleger · Wesseling, DE
Hans Glomb · Wesseling, DE
Gerhard Arnold · Hanau, DE
Klaus Boettcher
Siegfried Kursawe · Wesseling, DE

Key dates

Filing date	Mar 24, 1989
Grant date	Feb 26, 1991
Priority date	—
Expiry date	Mar 24, 2009

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2219/0027
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In a separation system (1 to 11) for tube reactors or autoclaves, which are used for the polymerization of ethylene or copolymerization of ethylene with ethylenically unsaturated comonomers in the presence of an initiator under from 500 to 4,000 bar and at from 150.degree. to 350.degree. C., for reducing the emission of solids during pressure relief processes of the reaction mixture present in the reactor or autoclave, the reaction mixture let down is fed via two or more separating containers (1, 1a) installed in series before it reaches the atmosphere.

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