EP 1631538 A1 20060308 - DEPOLYMERIZATION METHOD AND DEVICE
Title (en)
DEPOLYMERIZATION METHOD AND DEVICE
Title (de)
VERFAHREN UND ANORDNUNG ZUR DEPOLYMERISATION
Title (fr)
PROCEDE ET DISPOSITIF DE DEPOLYMERISATION
Publication
Application
Priority
- EP 2004002954 W 20040320
- DE 10325251 A 20030603
Abstract (en)
[origin: WO2004106277A1] The invention concerns the recovery of monomeric esters of substituted or unsubstituted acrylic acid or of monomers containing styrene from polymer material (66) containing corresponding structural units. According to the invention, the polymer material is brought into contact with a heat transfer medium inside a heated reactor (51). The heat transfer medium and the polymer material (66) are agitated inside the reactor (51), and gas, which forms inside the reactor (51) and which contains the monomer, is drawn out of the reactor (51). The heat transfer medium contains a multitude of spherical particles (67), which has been proven to be particularly advantageous for achieving high yields and purity of the monomer to be recovered.
IPC 1-7
IPC 8 full level
B01J 8/00 (2006.01); B01J 8/08 (2006.01); B01J 8/10 (2006.01); C07C 67/333 (2006.01)
CPC (source: EP KR)
B01J 8/003 (2013.01 - EP); B01J 8/0035 (2013.01 - EP); B01J 8/087 (2013.01 - EP); B01J 8/10 (2013.01 - EP); B01J 8/18 (2013.01 - KR); C07C 67/333 (2013.01 - EP KR); C07C 67/48 (2013.01 - KR); B01J 2208/00407 (2013.01 - EP); B01J 2208/00415 (2013.01 - EP); B01J 2208/00513 (2013.01 - EP); B01J 2219/00006 (2013.01 - EP); B01J 2219/182 (2013.01 - EP); B01J 2219/1943 (2013.01 - EP)
Citation (search report)
See references of WO 2004106277A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004106277 A1 20041209; BR PI0411093 A 20060718; CA 2527969 A1 20041209; CN 100415708 C 20080903; CN 1812957 A 20060802; DE 10325251 A1 20050324; EP 1631538 A1 20060308; JP 2006526582 A 20061124; KR 20060021342 A 20060307; MX PA05013109 A 20060317; RU 2005141291 A 20060827; RU 2355675 C2 20090520; ZA 200509808 B 20060830
DOCDB simple family (application)
EP 2004002954 W 20040320; BR PI0411093 A 20040320; CA 2527969 A 20040320; CN 200480018485 A 20040320; DE 10325251 A 20030603; EP 04722182 A 20040320; JP 2006508139 A 20040320; KR 20057023205 A 20051202; MX PA05013109 A 20040320; RU 2005141291 A 20040320; ZA 200509808 A 20051202