Production of hydrolyzable titanyl sulphate solution

US4313913A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Peter Panek · Castlecomer, IE
• Walter Gutsche
• Peter Woditsch · Krefeld, DE

Key dates

• Filing date: Dec 5, 1980
• Grant date: Feb 2, 1982
• Expiry date: Dec 5, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01G23/008
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for the production of a hydrolyzable titanyl sulphate solution comprising contacting sulphuric acid of about 86% concentration with a mixture of slag and ilmenite, the ratio of H.sub.2 SO.sub.4 to TiO.sub.2 in the mixture ranging from about 1.7:1 to 2.2:1 and the mol ratio of Ti(III) to Fe(III) in the mixture ranging from about 25:1 to 1.4:1, the slag having a TiO.sub.2 content of >80% and a Ti(III) content of about 22 to 40% calculated as TiO.sub.2, and the ilmenite having a Fe(III) to Fe(II) ratio from about 1:1 to 10:1, and adding water if necessary to bring the concentration of sulphuric acid to from about 86 to 96%.