Purification of gas streams containing ferric chloride

• US 4,053,558 A
• Filed: 12/06/1976
• Issued: 10/11/1977
• Est. Priority Date: 07/14/1975
• Status: Expired due to Term

• Current Assignee: Stauffer Chemical Company (Nouryon BV)
• Original Assignee: Stauffer Chemical Company (Nouryon BV)
• Inventors: Campbell, Ramsey G.
• Primary Examiner(s): Thomas, Earl C.
• Application Number:
  US05/747,677
• Time in Patent Office: 309 Days
• Field of Search: 423/210, 423/240, 423/463, 423/488, 423/493, 55/71, 55/72
• US Class Current: 423/240.00R
• CPC Class Codes: B01D 53/68 Halogens or halogen compounds
• CPC Class Codes: B01D 53/8659 Removing halogens or halogen compounds
• CPC Class Codes: C01B 7/0718 by adsorption

Abstract

Ferric chloride is removed from gas streams containing the same by passing the stream through a bed of activated alumina impregnated with potassium chloride or sodium chloride.

Claims

1. A process for removing ferric chloride from a gaseous stream containing the same by passing said stream through a bed comprising activated alumina impregnated with a member selected from the group consisting of potassium chloride and sodium chloride.

2. A process according to claim 1 wherein the gaseous stream comprises hydrogen chloride.

3. A process according to claim 1 wherein the alkali metal halide is potassium chloride.

4. A process according to claim 1 wherein the alkali metal halide is sodium chloride.

5. A process according to claim 1 wherein the activated alumina is in the form of spheres.