EP 0629707 A2 19941221 - Process for softening a sugar containing juice such as molasses and the application thereof to a process for the recovery of the sugars contained in this juice.
Title (en)
Process for softening a sugar containing juice such as molasses and the application thereof to a process for the recovery of the sugars contained in this juice.
Title (de)
Verfahren zur Enthartung von zuckerenthaltenden Säften wie Melasse und Verwendung desselben zu einem Verfahren zur Gewinnung der in dieser Melasse enthaltenden Zuckern.
Title (fr)
Procédé d'adoucissement d'un jus sucré tel qu'une mélasse de sucrerie et son utilisation dans un procédé de récupération des sucres contenus dans ce jus sucré.
Publication
Application
Priority
US 7563493 A 19930611
Abstract (en)
The invention relates to a process for softening an aqueous sugar (sugar cane) juice containing sugars and Ca<2+> and/or Mg<2+> ions, such as a sugar refinery molasses, by means of a cation-exchange resin, in the Na<+> and/or K<+> form, and for regenerating the said resin, which comprises: (a) a softening stage consisting in bringing the said sugar juice into contact with the said cation-exchange resin, in the Na<+> and/or K<+> form, in order to obtain, on the one hand, a softened sugar juice depleted in Ca<2+> and/or Mg<2+> ions and loaded with Na<+> and/or K<+> ions and, on the other hand, a cation-exchange resin loaded with Ca<2+> and/or Mg<2+> ions, and (b) a stage for regeneration of the latter resin, characterised in that the regeneration stage (b) consists in bringing the said resin into contact with a liquid effluent produced during the separation by chromatography of the sugars of a softened aqueous sugar juice containing sugars and Na<+> and/or K<+> ions, this liquid effluent containing the greater part of the Na<+> and/or K<+> ions initially present in the softened sugar juice.
IPC 1-7
IPC 8 full level
C13B 20/14 (2011.01); C13B 35/06 (2011.01)
CPC (source: EP US)
C13B 20/144 (2013.01 - EP US); C13B 35/06 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0629707 A2 19941221; EP 0629707 A3 19950215; EP 0629707 B1 19990324; AT E178099 T1 19990415; AU 6467694 A 19941215; AU 668305 B2 19960426; CA 2125749 A1 19941212; CN 1043903 C 19990630; CN 1111678 A 19951115; CZ 139394 A3 19950215; CZ 289046 B6 20011017; DE 69417292 D1 19990429; DE 69417292 T2 19990902; DK 0629707 T3 19991011; ES 2130375 T3 19990701; GR 3030118 T3 19990730; MA 23222 A1 19941231; PH 31548 A 19981103; PL 303771 A1 19950109; RU 2122031 C1 19981120; SK 280574 B6 20000410; SK 70594 A3 19950308; UA 27814 C2 20001016; US 5443650 A 19950822; US 5443650 B1 19980526; US 5443650 B2 20000530; ZA 944017 B 19950209
DOCDB simple family (application)
EP 94401313 A 19940610; AT 94401313 T 19940610; AU 6467694 A 19940610; CA 2125749 A 19940613; CN 94106564 A 19940610; CZ 139394 A 19940607; DE 69417292 T 19940610; DK 94401313 T 19940610; ES 94401313 T 19940610; GR 990401200 T 19990430; MA 23535 A 19940609; PH 48411 A 19940609; PL 30377194 A 19940610; RU 94020736 A 19940610; SK 70594 A 19940608; UA 94005250 A 19940610; US 7563493 A 19930611; ZA 944017 A 19940608