EP 2828197 A1 20150128 - METHOD FOR PREPARING PRECIPITATED SILICA COMPRISING A HIGH COMPACTION STEP
Title (en)
METHOD FOR PREPARING PRECIPITATED SILICA COMPRISING A HIGH COMPACTION STEP
Title (de)
VERFAHREN ZUR HERSTELLUNG VON FÄLLUNGSKIESELSÄURE MIT EINEM HOHEN VERDICHTUNGSSCHRITT
Title (fr)
PROCÉDÉ DE PRÉPARATION DE SILICE PRÉCIPITÉE COMPRENANT UNE ETAPE DE FORT COMPACTAGE
Publication
Application
Priority
- FR 1252586 A 20120322
- EP 2013055971 W 20130321
Abstract (en)
[origin: WO2013139930A1] The present invention concerns a method for preparing precipitated silica comprising the reaction of a silicate with an acidifying agent to obtain a suspension of precipitated silica, followed by a step of separation to obtain a cake and a step of drying said cake, method wherein a step of compaction of said cake at a pressure greater than 10 bars is carried out between the step of separation and the step of drying.
IPC 8 full level
C01B 33/193 (2006.01)
CPC (source: EP RU US)
C01B 33/124 (2013.01 - US); C01B 33/193 (2013.01 - EP RU US)
Citation (search report)
See references of WO 2013139930A1
Citation (examination)
JP S5756314 A 19820403 - NIPPON CHEMICAL IND
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2013139930 A1 20130926; BR 112014023221 B1 20210601; CA 2868064 A1 20130926; CA 2868064 C 20170905; CN 104703915 A 20150610; CN 104703915 B 20170929; EP 2828197 A1 20150128; FR 2988384 A1 20130927; FR 2988384 B1 20150911; JP 2015510865 A 20150413; JP 6017667 B2 20161102; KR 102096855 B1 20200406; KR 20140138303 A 20141203; MX 2014011208 A 20141110; MX 351192 B 20171004; RU 2014142548 A 20160520; RU 2607218 C2 20170110; TW 201400413 A 20140101; TW I574918 B 20170321; US 10865114 B2 20201215; US 2015056120 A1 20150226
DOCDB simple family (application)
EP 2013055971 W 20130321; BR 112014023221 A 20130321; CA 2868064 A 20130321; CN 201380026822 A 20130321; EP 13710876 A 20130321; FR 1252586 A 20120322; JP 2015500932 A 20130321; KR 20147029139 A 20130321; MX 2014011208 A 20130321; RU 2014142548 A 20130321; TW 102110376 A 20130322; US 201314386015 A 20130321