Method of improving handling characteristics of froth of elemental sulfur particles

US5071633A · kind A · utility

Assignee

• Linde GmbH · DE

Inventors

• Robert de Haan · Sasolburg, ZA
• Horst Hesse · Stuttgart, DE
• Sonet Vermaire · Middelburg, NL
• Sandra R. Wootton · Johannesburg, ZA

Key dates

• Filing date: Jun 15, 1989
• Grant date: Dec 10, 1991
• Expiry date: Jun 15, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B17/05
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

To improve the handling characteristics and dispersibility of a sulfur containing froth, especially a froth obtained from the regeneration step in a process for scrubbing out and oxidizing H.sub.2 S, there is added to the scrubbing liquor an ionic or non-ionic surfactant, e.g., dioctyl or dodecyl sulfosucciniate in sufficient concentrations, e.g., 3-16 ppm, to substantially prevent the sulfur particles from becoming crusty and stiff, this technique being particularly applicable to the replacement of diethanolamine.