Patent · US Expired

Method of pressure leaching

US4472359A · kind A · utility

2Cited by

4References

6Claims

0Family size

Assignees

Metallgesellschaft AG · DE
Vereinigte Aluminum - Werke Aktiengesellschaft · DE

Inventors

Hartmut Pietsch · Bad Homburg vor der Höhe, DE
Wolfgang Turke · Schöneck, DE
Hubert Bings · Grafenau, DE
Karl-Josef Memmel · Staufenberg, DE

Key dates

Filing date	Feb 23, 1982
Grant date	Sep 18, 1984
Priority date	—
Expiry date	Feb 23, 2002

Classification

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

Abstract

A process of leaching ores, ore concentrates, intermediate metallurgical products and the like, which contain acid-soluble constituents, by a treatment in an acid aqueous solution under pressure in a tubular reactor. The slurry contains suitably 300 to 1100 g starting material per liter of water and a velocity of flow of 0.5 to 4.0 m/sec. is suitably maintained throughout the flow path in the tubular reactor of the slurry and of the leached suspension.

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