Method for preparation of a catalyst solution for selective 1-hexene production

US11285469B2 · kind B2 · utility

Assignee

• SABIC GLOBAL TECHNOLOGIES B.V. · NL

Inventors

• Abdullah Saad Al-Dughaither · Riyadh, SA
• Shahid Azam · Riyadh, SA
• Abdulmajeed Mohammed Al-Hamdan · Riyadh, SA
• Dafer Mubarak Alshahrani · Riyadh, SA
• Sebastiano Licciulli · Riyadh, SA
• Andreas Meiswinkel · Munich, DE
• Heinz Bölt · Wolfratshausen, DE
• Wolfgang Muller · Königsfeld, DE
• Anina Wöhl · Munich, DE

Key dates

• Filing date: Dec 28, 2017
• Grant date: Mar 29, 2022
• Expiry date: Mar 13, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2531/34
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method for preparing a homogenous catalyst for use in preparing a linear alpha olefin includes: preparing a first pre-catalyst solution by mixing a chromium source and a ligand in a first solvent, wherein the first pre-catalyst solution is stored in a first vessel; preparing a second pre-catalyst solution by mixing an organoaluminum compound and a modifier in a second solvent, wherein the second pre-catalyst solution is stored in a second vessel; and simultaneously feeding the first pre-catalyst solution and the second pre-catalyst solution directly into a reaction vessel, wherein the reaction vessel includes a third solvent.