Process for preparing chlorine from HCI

US10703630B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Martin Karches · Neustadt, DE
• Kati Bachmann · Viernheim, DE
• Martin Sesing · Waldsee, DE
• Lothar Seidemann · Ludwigshafen am Rhein, DE
• Knud Jacobsen · Ludwigshafen, DE

Key dates

• Filing date: Jun 17, 2010
• Grant date: Jul 7, 2020
• Expiry date: Aug 8, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B7/04
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Process for preparing chlorine by oxidation of hydrogen chloride by means of oxygen in the presence of a particulate catalyst in a fluidized-bed reactor, where the heat of reaction of the exothermic oxidation of hydrogen chloride is removed by means of water which circulates in the tubes of a shell-and-tube heat exchanger, where (i) the fluidized-bed reactor is heated up to an operating temperature in the range from 350 to 420° C. in a heating-up phase and (ii) hydrogen chloride is reacted with oxygen in an operating phase at the operating temperature, wherein