The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 1993
Filed:
Jul. 02, 1992
John M Simon, Chessington, GB;
Christopher H Barwise, Hampshire, GB;
U.S. Borax Inc., Valencia, CA (US);
Abstract
Particles of a calcium borate mineral, such as colemanite or ulexite, are recovered from an ore by a froth flotation process using a dialkyl sulfosuccinate as collector. Suitable dialkyl sulfosuccinates include sodium or ammonium dinonyl sulfosuccinate, sodium or ammonium di-isodecyl sulfosuccinate, and sodium or ammonium dialauryl sulfosuccinate. The dialkyl sulfosuccinates may be used as aqueous solutions or as solutions in solvents consisting of water and methylated spirit, a dihydric alcohol such as ethylene glycol or hexylene glycol or a monohydric alcohol containing more than 5 carbons. Preferred collectors are the dinonyl sulfosuccinate salts, such as a compound of the formula, ##STR1## wherein X.sup.+ is a counterion.