Patent · US Expired

Process for upgrading a titaniferous material containing silica

US6627165B2 · kind B2 · utility

0Cited by

1References

4Claims

0Family size

Assignee

TECHNOLOGICAL RESOURCES PTY LIMITED · AU

Inventors

Ross Alexander McClelland · Cockatoo, AU
Michael John Hollitt · Melbourne, AU

Key dates

Filing date	Jun 28, 2001
Grant date	Sep 30, 2003
Priority date	—
Expiry date	Jun 28, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/20
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A process for upgrading of titaniferous material containing silica, including pretreating the titaniferous material by alkaline leaching to precipitate the silica as an aluminosilicate which is amenable to further leaching. Subsequently, the pretreated titaniferous material is leached under acid conditions, causing the silica to enter solution under conditions such that the silica is not hydrolysed or precipitated as a silicate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.