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:
Jun. 20, 1978
Filed:
Mar. 23, 1977
Applicant:
Inventors:
Edward S Martin, Lower Burrell, PA (US);
David A Wohleber, Lower Burrell, PA (US);
Assignee:
Aluminum Company of America, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01F / ; C01F / ;
U.S. Cl.
CPC ...
423135 ; 423136 ; 423495 ; 423341 ; 75113 ;
Abstract
Aluminum chloride is produced from clay containing aluminum oxide and silicon oxide by chlorinating the clay through contact with a mixture consisting essentially of a chlorinating agent, a reducing agent, an alkali metal compound catalyst, and silicon chloride; and thereafter separating the reaction products from the chlorination step; and recycling back to the chlorination step substantially all the silicon chloride separated from the reaction products to thereby promote the chlorination of the aluminum oxide in the clay while suppressing chlorination of the silicon oxide.