Recovery of materials from a mother liquor residue

US9732022B2 · kind B2 · utility

Assignee

• SABIC GLOBAL TECHNOLOGIES B.V. · NL

Inventors

• Ahmed Abouelfetouh Youssef · Greenwood, US
• Mohan Khadilkar · Plymouth, US
• Martin Herke Oyevaar · Goes, NL

Key dates

• Filing date: Oct 28, 2013
• Grant date: Aug 15, 2017
• Expiry date: Nov 15, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C37/52
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for recovery of materials from a mother liquor residue comprising cracking a mother liquor residue with an aromatic sulfonic acid catalyst to form a cracked product mixture and separating phenol from the cracked product mixture wherein the mother liquor residue results from distillation of a mother liquor resulting from bisphenol A synthesis and isolation.