Patent · US Active

Safe method for tandem C-4 oxidation to methacrylic acid

US11661392B2 · kind B2 · utility

0Cited by

10References

10Claims

0Family size

Assignee

Röhm GmbH · DE

Inventors

Steffen Krill · Mühltal, DE
Jalyn Deng · Darmstadt, DE
Markus Maier · Graz, AT

Key dates

Filing date	Mar 25, 2021
Grant date	May 30, 2023
Priority date	—
Expiry date	Mar 25, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C51/252
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

An improved process can be used for the production of methacrylates, in particular methacrylic acid and/or methyl methacrylate (MMA). Specific embodiments of this process can be used for the safe and efficient production of these products from C-4-based raw materials, in particular those based on isobutylene or tert-butanol as raw materials. With this novel process, it is possible to operate such processes for a longer period of time without any safety or cleaning related shutdowns. This makes it possible to carry out such processes as simple, economic, and environmentally friendly as possible.

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