Process for the epoxidation of an olefin

US10100024B2 · kind B2 · utility

Assignees

• EVONIK DEGUSSA GMBH · DE
• THYSSENKRUPP INDUSTRIAL SOLUTIONS AG · DE

Inventors

• Guido Stochniol · Haltern am See, DE
• Wolfgang Wöll · Maintal, DE
• Franz Schmidt · Mannheim, DE

Key dates

• Filing date: Jul 23, 2015
• Grant date: Oct 16, 2018
• Expiry date: Jul 23, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/584
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

In a process for the epoxidation of an olefin, where a mixture comprising olefin, hydrogen peroxide, water and methanol with a weight ratio of water to methanol of less than 1 is passed through a catalyst fixed bed comprising a shaped titanium silicalite catalyst, catalyst breakage is reduced by conditioning the dry catalyst with at least one conditioning liquid comprising water and from 25 to 45% by weight methanol.