Title:
【発明の名称】TiO↓2鉱石の精製方法
Document Type and Number:
Japanese Patent JPH07500145
Kind Code:
A
Abstract:
Process for beneficiating titanium bearing ore selected from the group consisting essentially of titaniferous ores, leucoxene, rutile, perovskite, and sphene comprising: (a) contacting said ore with an aqueous solution of a mineral acid having a concentration of about 3-30 percent by weight said contacting taking place at a temperature of about 160 DEG -300 DEG C., until the desired amount of impurities are solubilized and a leachate is formed, (b) removing the leachate from the product of step (a).
Inventors:
Chao, Tse
Application Number:
JP50005492A
Publication Date:
January 05, 1995
Filing Date:
May 01, 1992
Export Citation:
Assignee:
E.I.DU PONT DE NEMOURS AND COMPANY
International Classes:
C01G23/04; C22B34/12; (IPC1-7): C22B34/12; C01G23/04
Attorney, Agent or Firm:
Yoshikazu Tani (2 outside)