Process for controlling a production process

US7813839B2 · kind B2 · utility

Assignee

• Bayer MaterialScience AG · DE

Inventors

• Jochen Mahrenholtz · Krefeld, DE
• Stefan Wershofen · Mönchengladbach, DE
• Gerhard Then · Dormagen, DE
• Sabine Pegel · Mülheim an der Ruhr, DE
• Jun Wang · Nanjing, CN
• Erman Sevinc · Longford, IE
• Richard H. Guhl · Houston, US

Key dates

• Filing date: Jan 22, 2007
• Grant date: Oct 12, 2010
• Expiry date: Jan 31, 2028

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2219/00231
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A production process such as an isocyanate production process, conducted with a production facility having (a) at least two incoming streams, b) at least one exit stream and c) at least one inner recycling stream is controlled by adjusting at least one incoming stream amount by means of regulating controls to control the exit stream concentration and/or amount.