Sulphided ion exchange resins

US7591944B2 · kind B2 · utility

Assignee

• Johnson Matthey PLC · GB

Inventors

• Peter John Herbert Carnell · Cross, GB
• Nicola YOUNG · Crook, GB
• Peter Wood · Stockton-on-Tees, GB

Key dates

• Filing date: Jan 17, 2003
• Grant date: Sep 22, 2009
• Expiry date: Jul 5, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G25/02
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method of making a sulphided ion exchange resin from an ion exchange resin containing primary or secondary amino group comprises passing a non-aqueous liquid, e.g. a hydrocarbon, feedstock containing elemental sulphur or organic, or inorganic, di-or poly-sulphides through a bed of an ion exchange resin containing primary or secondary amino groups, and so unsulphided ion exchange resins containing primary or secondary amine groups may be used to remove such elemental sulphur or sulphur compounds from liquid, e.g. hydrocarbon, feedstocks. The sulphided ion exchange resins may be used to remove elemental mercury or organic mercury compounds from liquid, e.g. hydrocarbon, streams.