Chromium-free hydrogenation of hydroformylation mixtures

US9567276B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Florian Klasovsky · Haltern am See, DE
• Robert Franke · Marl, DE
• Marc Becker · Trier, DE
• Thomas Quandt · Marl, DE
• Frank Geilen · Haltern am See, DE

Key dates

• Filing date: Dec 22, 2015
• Grant date: Feb 14, 2017
• Expiry date: Dec 22, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2523/00
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the preparation of alcohols by hydrogenation of aldehydes, in which use mixture comprising at least one aldehyde and at least one accompanying component is brought into contact, in the presence of hydrogen, with a heterogeneous catalyst, giving a product mixture which comprises at least the alcohol corresponding to the hydrogenated aldehyde, and at least one by-product, where the catalyst comprises a support material, and nickel and copper applied thereto. The invention also includes a chromium-free catalyst suitable for hydrogenating aldehyde mixtures with different chain lengths, in particular those which originate from different hydroformylations and can also comprise substances with C═C double bonds.