US Patent Issued to BASF on June 9 for "Frothing agent for flotation of ores" (German Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,649,159, issued on June 9, was assigned to BASF SE (Ludwigshafen am Rhein, Germany).

"Frothing agent for flotation of ores" was invented by Graeme Levi Stewart (Ludwigshafen, Germany), Alexej Michailovski (Ludwigshafen, Germany) and Yoav Zuk (Ludwigshafen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein are methods for flotation of an ore. The methods include providing an aqueous suspension having an ore in the form of particles, water, and a first frothing agent including a poly(tetrahydrofuran), in a flotation cell to obtain a provided aqueous suspension. The method further includes introducing air into the provided aqueous susp...