Process for producing ferrous sulphate in granule form

US4659557A · kind A · utility

Assignee

• Rheinische Braunkohlenwerke AG · DE

Inventors

• Uwe Lenz · Zwingenberg, DE
• Gunter Ritter · Münstermaifeld, DE

Key dates

• Filing date: Mar 7, 1983
• Grant date: Apr 21, 1987
• Expiry date: Mar 7, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01G49/14
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

In a process for making ferrous sulphate in granule form, ferrous sulphate heptahydrate is mixed with fine-grain brown coal or lignite having a low water content, in such an amount that the resulting mixture is pourable.