Addition of a methyl hydrogen terephthalate reactor to a dimethyl terephthalate process

US8541616B2 · kind B2 · utility

Assignee

• Eastman Chemical Company · US

Inventors

• Laura Ellen Bustamante · Kingsport, US
• William Lee Cook · Kingsport, US
• Brent Alan Tennant · Kingsport, US
• Ashfaq Shahanawaz Shaikh · Kingsport, US
• Joseph Luther Parker · Kingsport, US
• Richard Andrew Virost · Jonesborough, US
• Michael Visneski · Kingsport, US

Key dates

• Filing date: Jan 21, 2010
• Grant date: Sep 24, 2013
• Expiry date: Feb 3, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/08
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

An MHT reactor is added to a DMT process to eliminate the majority of the DMT/MHT recycle back to the DMT reactor, allowing for an increase in capacity to the DMT reactors.