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:
May. 25, 1976
Filed:
May. 24, 1974
Applicant:
Inventors:
Tokuzo Kurata, Kitakyushu, JA;
Satoshi Emi, Kitakyushu, JA;
Kunihiko Ofuchi, Kitakyushu, JA;
Tsutomu Takeuchi, Kitakyushu, JA;
Isamu Sone, Kitakyushu, JA;
Assignee:
Mitsubishi Chemical Industries Ltd., Tokyo, JA;
Primary Examiner:
Int. Cl.
CPC ...
C01G / ; B01D / ; C22B / ;
U.S. Cl.
CPC ...
423 86 ; 423 74 ; 7510 / ; 423610 ;
Abstract
Titanium minerals are concentrated by leaching with an acid leaching agent in the presence of a chelating agent, sulfonate surfactant or polyacrylamide surfactant, wherein the iron components are removed from the minerals.