Patent · US Active

Method for production of methyl methacrylate by oxidative esterification using a heterogeneous catalyst

US10865179B2 · kind B2 · utility

0Cited by

15References

9Claims

0Family size

Assignees

DOW GLOBAL TECHNOLOGIES LLC · US
Rohm and Haas Company · US

Inventors

Jeffrey A. Herron · Midland, US
Daniel J. Arriola · Midland, US
D. Wayne Blaylock · Richmond, US
Wen-Sheng Lee · Midland, US
Victor J. Sussman · Midland, US
Daniel A. Hickman · Midland, US
Kirk W. Limbach · Dresher, US

Key dates

Filing date	Sep 12, 2018
Grant date	Dec 15, 2020
Priority date	—
Expiry date	Sep 12, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C69/54
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method for preparing methyl methacrylate from methacrolein and methanol. The method comprises contacting a mixture comprising methacrolein, methanol and oxygen with a heterogeneous catalyst comprising a support and a noble metal, wherein oxygen concentration at a reactor outlet is from 1 to 7.5 mol % and wherein pH at a reactor outlet is no greater than 7.5.

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