EP 2707525 A1 20140319 - METHOD FOR PRODUCING CARBON FIBERS
Title (en)
METHOD FOR PRODUCING CARBON FIBERS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON KOHLEFASERN
Title (fr)
PROCÉDÉ DE FABRICATION DE FIBRES DE CARBONE
Publication
Application
Priority
- DE 102011075595 A 20110510
- EP 2012057116 W 20120419
Abstract (en)
[origin: WO2012152554A1] The invention relates a method for producing carbon fibers, wherein polyacrylonitrile (PAN) is pyrolytically carbonized to form carbon fibers under release of hydrocyanic acid (HCN), and to a system for carrying out the method. The aim of the invention is to make the method more economical. Said aim is achieved by the material utilization of the hydrocyanic acid by collecting the released hydrocyanic acid and washing said acid with an alkaline medium to obtain cyanide salt-containing lye.
IPC 8 full level
D01D 13/02 (2006.01); D01F 9/12 (2006.01); D01F 9/22 (2006.01)
CPC (source: EP KR US)
C01B 32/05 (2017.07 - EP US); C01C 3/10 (2013.01 - US); D01D 13/02 (2013.01 - KR); D01F 9/22 (2013.01 - EP KR US); D01F 9/328 (2013.01 - EP US); D01F 13/04 (2013.01 - EP US); Y02P 70/62 (2015.11 - EP US)
Citation (search report)
See references of WO 2012152554A1
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 RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012152554 A1 20121115; BR 112013028741 A2 20170124; CA 2834961 A1 20121115; CN 103597130 A 20140219; DE 102011075595 A1 20121115; EP 2707525 A1 20140319; IL 229309 A0 20140130; JP 2014522454 A 20140904; KR 20140032415 A 20140314; MX 2013013047 A 20140217; RU 2013154470 A 20150620; TW 201250075 A 20121216; US 2014147366 A1 20140529
DOCDB simple family (application)
EP 2012057116 W 20120419; BR 112013028741 A 20120419; CA 2834961 A 20120419; CN 201280022844 A 20120419; DE 102011075595 A 20110510; EP 12717265 A 20120419; IL 22930913 A 20131107; JP 2014509654 A 20120419; KR 20137032282 A 20120419; MX 2013013047 A 20120419; RU 2013154470 A 20120419; TW 101116206 A 20120507; US 201214116780 A 20120419