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. 19, 1980
Filed:
Aug. 31, 1977
Booker W Morey, Pasadena, CA (US);
Occidental Petroleum Corporation, Los Angeles, CA (US);
Abstract
The present invention relates to the purification of glass, obtained by froth flotation from shredded municipal trash; more particularly, the present invention relates to a process for removing aluminum oxide, especially corundum, and silicon carbide particles or stones, of a size greater than 60 mesh, as impurities from the glass. The process comprises subjecting the froth-floated glass to magnetic separation, especially high intensity magnetic separation, such as that produced by employing a high intensity induced roll magnetic separator. Since such impurities function unexpectedly as magnetics in relation to glass, the refractory impurities are removed from the glass during such magnetic separation. The resulting purified glass can then be employed as glass cullet for production of finished glass articles.