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. 19, 1977
Filed:
Sep. 08, 1975
Applicant:
Inventor:
Jackson S Boyer, Wilmington, DE (US);
Assignee:
Sunoco Energy Development Co., Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; C02B / ;
U.S. Cl.
CPC ...
210 71 ; 62532 ; 159 / ; 159 / ; 159D / ; 208 / ;
Abstract
A method for reducing the clay content of a colloidal clay-water mixture which comprises combining the mixture with air at superatmospheric pressure and thereafter expelling the mixture in the form of small droplets at atmospheric pressure at a temperature below 32.degree. F. to form synthetic snow. Thereafter synthetic snow can be melted to recover water containing reduced mineral content. The invention is particularly applicable to sludge associated with the hot water extraction method for recovering bitumen from tar sands.