Patent · US Active

Method for the production of dioxolane

US7754900B2 · kind B2 · utility

14Cited by

1References

17Claims

0Family size

Assignee

BASF SE

Inventors

Markus Siegert · Heidelberg, DE
Neven Lang · Mannheim, DE
Eckhard Stroefer · Mannheim, DE
Achim Stammer · Freinsheim, DE

Key dates

Filing date	Sep 6, 2006
Grant date	Jul 13, 2010
Priority date	—
Expiry date	Oct 20, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/10
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Processes comprising: providing a reactive distillation column having an upper region, a middle region and a lower region; feeding ethylene glycol and an aqueous formaldehyde solution into the reactive distillation column in the middle region of the reactive distillation column; reacting the ethylene glycol and the aqueous formaldehyde solution in the reactive distillation column in the presence of a catalyst to form dioxolane; removing a product stream comprising dioxolane in an amount of at least 75% by weight from the upper region of the reactive distillation column; and removing a bottom stream comprising one or more components having boiling points higher than dioxolane from the lower region of the reactive distillation column.

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