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:
Apr. 22, 1986
Filed:
Feb. 11, 1982
George M Lilley, Lakeland, FL (US);
Other;
Abstract
The method of beneficiating phosphate tailings and debris waste material is disclosed for producing enriched phosphate ore and a sand product which is usable for glass, cement and the like or for land reclamation. The method includes treating the phosphate tailings and waste material with a cationic reagent and subjecting the tailings and waste material to a flotation process to overflow the sand product therefrom. The underflow phosphate ore is subjected to a conventional double flotation process to produce a high grade phosphate product. The sand product may either be directly pumped into an existing phosphate quarry for land reclamation or may be deregentized and treated with anionic reagents to remove remaining impurities providing a sand product suitable for glass, cement and the like.