EP 0784594 A1 19970723 - METHOD FOR MAKING PHOSPHATED ALKALINE SALTS, RESULTING SALTS AND SILICAS, AND DETERGENT OR FOODSTUFF CONTAINING SUCH SALTS
Title (en)
METHOD FOR MAKING PHOSPHATED ALKALINE SALTS, RESULTING SALTS AND SILICAS, AND DETERGENT OR FOODSTUFF CONTAINING SUCH SALTS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON ALKALIPHOSPHATEN, SALZEN UND KIESELSÄUREN, SOWIE VON EINEM WASCHMITTEL ODER EINEM NAHRUNGSMITTEL DIESE SALZE ENTHALTEND
Title (fr)
PROCEDE DE FABRICATION DE SELS ALCALINS PHOSPHATES, SELS ET SILICES OBTENUS, AINSI QUE DETERGENT OU PRODUIT ALIMENTAIRE CONTENANT CES SELS
Publication
Application
Priority
BE 9400065 W 19941003
Abstract (en)
[origin: WO9610536A1] A method for making high-purity phosphated alkaline salts, particularly a tripolyphosphate, by reacting phosphoric acid with an aqueous solution of an alkaline silicate such as a sodium, potassium or lithium silicate, to give the corresponding phosphated salt along with micro-amorphous silica which retains most of the impurities contained in the phosphoric acid used, whereafter the resulting phosphated salt and silica are separated.
IPC 1-7
C01B 25/30; C01B 25/41; C01B 33/193; C01B 33/154; C11D 3/06; A23L 1/03
IPC 8 full level
A23L 29/00 (2016.01); C01B 25/30 (2006.01); C01B 25/41 (2006.01); C01B 33/154 (2006.01); C01B 33/193 (2006.01); C11D 3/06 (2006.01)
CPC (source: EP)
A23L 29/015 (2016.07); B82Y 30/00 (2013.01); C01B 25/301 (2013.01); C01B 25/412 (2013.01); C01B 33/154 (2013.01); C01B 33/193 (2013.01); C11D 3/06 (2013.01); C11D 3/062 (2013.01); C01P 2004/61 (2013.01); C01P 2004/64 (2013.01); C01P 2006/11 (2013.01); C01P 2006/12 (2013.01); C01P 2006/19 (2013.01); C01P 2006/60 (2013.01); C01P 2006/62 (2013.01); C01P 2006/63 (2013.01); C01P 2006/64 (2013.01); C01P 2006/80 (2013.01); C01P 2006/82 (2013.01); C01P 2006/90 (2013.01)
Citation (search report)
See references of WO 9610536A1
Designated contracting state (EPC)
BE DE ES FR GB SE
DOCDB simple family (publication)
WO 9610536 A1 19960411; EP 0784594 A1 19970723; IL 115481 A0 19960119; MA 23675 A1 19960401; TN SN95100 A1 19960206; TR 199501208 A2 19960621
DOCDB simple family (application)
BE 9400065 W 19941003; EP 94927463 A 19941003; IL 11548195 A 19951002; MA 24021 A 19950928; TN SN95100 A 19951002; TR 9501208 A 19951003