Patent · US Expired

Method of obtaining tantalum-niobium from ores having a high titanium content

US4192674A · kind A · utility

1Cited by

5References

12Claims

0Family size

Assignee

Hermann C. Starck Berlin GmbH & Co. KG · DE

Inventors

Bruno E. Krismer · Goslar, DE
Harmut Pungs · Laufenbürg, DE

Key dates

Filing date	Jul 18, 1978
Grant date	Mar 11, 1980
Priority date	—
Expiry date	Jul 18, 1998

Classification

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

Abstract

A process for obtaining metal rich in tantalum and niobium from ore having a high titanium content comprising stepwise electrothermal ore reduction in the presence of aluminum, calcium oxide and barium sulfate.

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