EP 2480496 A1 20120801 - PREVENTING OR REDUCING SCALE IN WET-PROCESS PHOSPHORIC ACID PRODUCTION
Title (en)
PREVENTING OR REDUCING SCALE IN WET-PROCESS PHOSPHORIC ACID PRODUCTION
Title (de)
VERHINDERUNG ODER MINIMIERUNG VON KESSELSTEIN BEI DER HERSTELLUNG VON PHOSPHORSÄURE IM NASSVERFAHREN
Title (fr)
PRÉVENTION OU RÉDUCTION DU TARTRE DANS LA PRODUCTION D'ACIDE PHOSPHORIQUE PAR VOIE HUMIDE
Publication
Application
Priority
- US 24571309 P 20090925
- US 2010050086 W 20100924
Abstract (en)
[origin: WO2011038167A1] Methods for preventing or reducing the formation of scale in a wet-process phosphoric acid production process by intermixing a water-soluble functional organic reagent with a phosphoric acid at one or more step of the phosphoric acid production process in an amount sufficient to prevent or reduce at least one species of scale are provided.
IPC 8 full level
C01B 25/22 (2006.01)
CPC (source: EP)
C01B 33/22 (2013.01)
Citation (search report)
See references of WO 2011038167A1
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 2011038167 A1 20110331; AP 2012006168 A0 20120430; AP 3403 A 20150831; AR 078448 A1 20111109; AU 2010298172 A1 20120419; AU 2010298172 B2 20140731; BR 112012006675 A2 20160510; CA 2775344 A1 20110331; CN 102712476 A 20121003; CN 102712476 B 20190312; EA 028289 B1 20171031; EA 201270464 A1 20121030; EP 2480496 A1 20120801; IL 218757 A0 20120628; IL 218757 A 20170928; JO 3035 B1 20160905; MA 33797 B1 20121203; MX 2012003383 A 20120410; PE 20121419 A1 20121017; SA 110310714 B1 20141116; TN 2012000121 A1 20130919; ZA 201202019 B 20130828
DOCDB simple family (application)
US 2010050086 W 20100924; AP 2012006168 A 20100924; AR P100103486 A 20100924; AU 2010298172 A 20100924; BR 112012006675 A 20100924; CA 2775344 A 20100924; CN 201080051658 A 20100924; EA 201270464 A 20100924; EP 10760870 A 20100924; IL 21875712 A 20120320; JO P20100326 A 20100926; MA 34801 A 20120425; MX 2012003383 A 20100924; PE 2012000361 A 20100924; SA 110310714 A 20100925; TN 2012000121 A 20120319; ZA 201202019 A 20120319