Global Patent Index - EP 2462054 A1

EP 2462054 A1 20120613 - METHOD FOR PRODUCING CHLORINE BY GAS PHASE OXIDATION OF HYDROGEN CHLORIDE IN A FLUIDIZED-BED REACTOR

Title (en)

METHOD FOR PRODUCING CHLORINE BY GAS PHASE OXIDATION OF HYDROGEN CHLORIDE IN A FLUIDIZED-BED REACTOR

Title (de)

VERFAHREN ZUR HERSTELLUNG VON CHLOR DURCH GASPHASENOXIDATION VON CHLORWASSERSTOFF IN EINEM WIRBELSCHICHTREAKTOR

Title (fr)

PROCÉDÉ DE PRODUCTION DE CHLORE PAR OXYDATION EN PHASE GAZEUSE DE CHLORURE D'HYDROGÈNE DANS UN RÉACTEUR À LIT FLUIDISÉ

Publication

EP 2462054 A1 20120613 (DE)

Application

EP 10737322 A 20100728

Priority

  • EP 09167250 A 20090805
  • EP 2010060943 W 20100728
  • EP 10737322 A 20100728

Abstract (en)

[origin: WO2011015503A1] The invention relates to a method for producing chlorine by gas phase oxidation of hydrogen chloride on a heterogeneous, particulate catalyzer in a fluidized-bed reactor, obtaining a product gas mixture that is freed of any carried catalyzer particles in cyclones (1) disposed in the upper region of the fluidized-bed reactor, comprising a cylindrical upper part (2) having a tangential or spiral inlet (3) for the product gas mixture and narrowing at the lower end thereof via a conical part (4) into a cyclone downpipe (5), and a central immersion pipe (6) in the upper region of the cyclone (1) for diverting the product gas mixture freed of the carried catalyzer particles, characterized in that – one to seven cascades of two to five cyclones each connected in series are used, wherein the cyclones (1) of each cascade, except for the cyclone (1) first permeated, which is designed that approximately 90 to 99% by weight of the carried catalyst particles are precipitated, each comprise a trickle valve (7) at the lower end of the cyclone downpipe (5) comprising an angled pipe terminator (8) and a loose flap valve (9) suspended at an angle a to the vertical, wherein the angle a and the weight of the flap valve (9) are designed so that the torque of the flap valve (9) based on the diameter of the outlet opening out of the angled pipe terminator (8) is in the range of 2 to 300 N/m2.

IPC 8 full level

C01B 7/04 (2006.01)

CPC (source: EP KR US)

B01D 24/00 (2013.01 - KR); B01J 8/0055 (2013.01 - EP US); B01J 8/18 (2013.01 - EP US); B01J 19/24 (2013.01 - KR); C01B 7/04 (2013.01 - EP KR US)

Citation (search report)

See references of WO 2011015503A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DOCDB simple family (publication)

WO 2011015503 A1 20110210; BR 112012002613 A2 20160329; CN 102482082 A 20120530; EP 2462054 A1 20120613; JP 2013500926 A 20130110; KR 20120054616 A 20120530; US 2012134913 A1 20120531

DOCDB simple family (application)

EP 2010060943 W 20100728; BR 112012002613 A 20100728; CN 201080039054 A 20100728; EP 10737322 A 20100728; JP 2012523290 A 20100728; KR 20127005860 A 20100728; US 201013389081 A 20100728