Global Patent Index - EP 2027065 A2

EP 2027065 A2 20090225 - METHOD FOR PRODUCING CHLORINE FROM HYDROGEN CHLORIDE AND OXYGEN

Title (en)

METHOD FOR PRODUCING CHLORINE FROM HYDROGEN CHLORIDE AND OXYGEN

Title (de)

VERFAHREN ZUR HERSTELLUNG VON CHLOR AUS CHLORWASSERSTOFF UND SAUERSTOFF

Title (fr)

PROCÉDÉ DE PRODUCTION DE CHLORE À PARTIR DE GAZ CHLORHYDRIQUE ET D'OXYGÈNE

Publication

EP 2027065 A2 20090225 (DE)

Application

EP 07764547 A 20070521

Priority

  • EP 2007004613 W 20070521
  • DE 102006024516 A 20060523

Abstract (en)

[origin: WO2007134860A2] The invention relates to a method for producing chlorine by the thermal reaction of hydrogen chloride with oxygen using catalysts and/or by the non-thermally activated reaction of hydrogen chloride with oxygen, in which a) the gaseous mixture produced during the reaction, consisting at least of the target products chlorine and water, non-converted hydrogen chloride and oxygen, additional minor constituents such as carbon dioxide and nitrogen and optionally phosgene, is cooled to condense hydrochloric acid, b) the liquid hydrochloric acid thus produced is isolated from the gaseous mixture, c) the residual water in the gaseous mixture is removed, in particular by washing with concentrated sulphuric acid. The method is characterised in that d) oxygen and optionally also minor constituents, in particular CO<SUB>2</SUB> and/or N<SUB>2 </SUB>are eliminated from the resultant gaseous mixture by gas permeation.

IPC 8 full level

C01B 7/04 (2006.01)

CPC (source: EP KR US)

C01B 7/01 (2013.01 - KR); C01B 7/04 (2013.01 - EP KR US); C01B 7/0743 (2013.01 - EP US); C01B 13/0251 (2013.01 - EP US)

Citation (search report)

See references of WO 2007134860A2

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

DE 102006024516 A1 20071129; CN 101454240 A 20090610; EP 2027065 A2 20090225; JP 2009537452 A 20091029; KR 20090009895 A 20090123; RU 2008150596 A 20100627; TW 200804188 A 20080116; US 2007286793 A1 20071213; WO 2007134860 A2 20071129; WO 2007134860 A3 20080731

DOCDB simple family (application)

DE 102006024516 A 20060523; CN 200780018846 A 20070521; EP 07764547 A 20070521; EP 2007004613 W 20070521; JP 2009511409 A 20070521; KR 20087028576 A 20081121; RU 2008150596 A 20070521; TW 96118053 A 20070522; US 75240507 A 20070523