Soda ash leaching of scheelite concentrates: the effect of high concentration of sodium carbonate

• Type: Article in International Scientific Journal
• Date: 1997

Authors

martins, jp (Author) FEUP; martins, f (Author) FEUP

Journal

Title: Hydrometallurgy

Vol. 46

Pages: 191-203

ISSN: 0304-386X

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 12 Citations

ISI Web of Science

Scopus - 20 Citations

COMPENDEX

Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-001-AYJ

DOI: 10.1016/s0304-386x(97)00013-3

Abstract (EN): The effect of high concentrations of sodium carbonate in soda ash digestion of scheelite concentrates has been studied by analysing the temperature profile through the calcium carbonate ash layer, and using a calcium sequestering agent (EDTA) in the leaching system. A mechanism based on the principles of the adsorption phenomena involved is described to justify the probable presence of a double compound of sodium and calcium carbonates blocking the calcite pores.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13