Process for producing an aqueous polyacrylamide concentrate

US11643491B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Faissal-Ali El-Toufaili · Ludwigshafen, DE
• Dennis Loesch · Altrip, DE
• Anna-Corina Schmidt · Trostberg, DE
• Tobias Joachim Zimmermann · Munich, DE
• Markus Ostermayr · Ludwigshafen am Rhein, DE
• Jack Tinsley · Mannheim, DE
• Brent Busby · Richmond, US

Key dates

• Filing date: Oct 17, 2019
• Grant date: May 9, 2023
• Expiry date: Jan 6, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2800/20
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Process for producing aqueous polyacrylamide concentrates by polymerizing an aqueous solution comprising at least acrylamide thereby obtaining an aqueous polyacrylamide gel, comminuting said aqueous polyacrylamide gel and mixing it with an aqueous liquid, wherein the manufacturing steps are allocated to two different locations A and B and the process comprises the step of transporting an aqueous polyacrylamide concentrate hold in a suitable transport unit from a location A to a location B. Modular, relocatable plant for manufacturing aqueous polyacrylamide, wherein the units of the plant are located at two different locations A and B.