Patent · US Active

Process for preparing cyclododecanone

US11370752B2 · kind B2 · utility

0Cited by

5References

9Claims

0Family size

Assignee

Evonik Operations GmbH · DE

Inventors

Luca Cameretti · Dortmund, DE
Jan Caßens · Recklinghausen, DE
Ralf Meier · Dortmund, DE

Key dates

Filing date	Jan 31, 2018
Grant date	Jun 28, 2022
Priority date	—
Expiry date	Jan 31, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C49/307
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a method for producing cyclododecanone (CDON). During the production, contaminated cyclododecane (CDAN) is produced. This can be separated from CDON by distillation (CDAN-containing fraction). The separation of CDAN and impurities such as 13-oxabicyclo [7.3.1]tridecane occurs by crystallizing out CDAN from the CDAN-containing fraction.

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