Patent · US Active

Method and system for purifying monomers

US9221738B2 · kind B2 · utility

0Cited by

5References

18Claims

0Family size

Assignee

Evonik Röhm GmbH · DE

Inventors

Dirk Broell · Langen, DE
Christian Maul · Neustadt, DE
Benedikt Laux · Monzernheim, DE
Volker Schleep · Lorsch, DE

Key dates

Filing date	Mar 26, 2010
Grant date	Dec 29, 2015
Priority date	—
Expiry date	Mar 2, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/54
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to a process for purifying monomers, by evaporating at least a portion of the monomers present in a starting composition and then condensing it, which is characterized in that at least a portion of the starting composition is evaporated in a short-path evaporator, the mass flow density of the vapors {dot over (m)} being selected according to the relation (I) A further aspect of the present invention is a plant for performing the process.

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