Bismuth vanadate process

Patent · Tue Jun 26 00:00:00 EDT 1990

OSTI ID:6550954

Sullivan, R M

This patent describes the process for the preparation of bismuth vanadate and bismuth vanadate-containing compounds wherein the precursor materials are calcined in the solid state at temperatures sufficient to react the precursor materials to prepare the vanadate compounds. It comprises: wet grinding the calcined product, contacting the calcined product with sufficient alkaline material to provide a pH level of 7.0-13.0 and recovering the treated product, the wet grinding of the calcined product being conducted either in the presence of the alkaline material or prior to the contacting with the alkaline material.

• Assignee: Ciba-Geigy Corp., Ardsley, NY (USA)
• Patent Number(s): US 4937063; A
• Application Number: PPN: US s 7-298215; TRN: 90-030897
• OSTI ID: 6550954
• Resource Relation: Patent File Date: 17 Jan 1989
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BISMUTH COMPOUNDS
PRODUCTION
VANADATES
ALKALINE EARTH METAL COMPOUNDS
CALCINATION
PRECURSOR
CHEMICAL REACTIONS
DECOMPOSITION
OXYGEN COMPOUNDS
PYROLYSIS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication