TH18296A - Methods for softening sugary solutions Like sugar or molasses - Google Patents

Abstract

1.Processes for softening The liquid sugars with sugars and Ca2 + and / or Mg2 + ions, such as the molasses of the sugar factory, etc. by using cation-exchange resins And for the reconditioning of the aforementioned resin, which includes (a) softening steps Which the said sugar substance will be brought into contact With the resin that exchanges the cation in the form of Na + and / or K + to obtain A softened sugar substance with a low Ca2 + and / or Mg2 + charge and charged with Na + and / or K + ions, and on the other hand, the cation-exchanged resin is charged with a Ca2 + and / or Mg2 + charge and ( B) procedure for the pretreatment of such resins. It is characterized by the fact that the pretreatment step (step (b)) consists of introducing the resin into contact with the liquid substance that is formed by separation. Sugar leaves the liquid sugar that has been softened. Contains sugars and Na + and / or K + ions. The liquid substance is mainly composed of the Na + and / or K + ions present at the beginning of the sugar substance.

Claims (9)

1. A process consisting of a) contact with aqueous solution of sugar And divalent cation of calcium or magnesium with many cation exchange resins containing cation type Sodium monovalent Or potassium until the cation concentration of sodium or The potassium in such aqueous solution is abundant. Compared to the initial concentration of Cation of sodium Or potassium in such aqueous solution And the cation concentration of calcium or magnesium in the aqueous solution is reduced. When compared with concentration Start of calcium cation Or magnesium in aqueous solution But where the aqueous solution They do not lack the cation of calcium or magnesium. B) the separation of the cation rich solution of sodium Or potassium Into two parts: the first part contains the main part of the sugar from the rich solution with Cation of sodium Or potassium And the second part Or the raffinate contains substances that float Come out with water, which has a positive charge of sodium. Or concentrated potassium from rich solution With cation of sodium or potassium Where the released substance does not lack the cation of calcium or magnesium; and c) the restoration of many cation exchange resins by contact. Resin with a substance released until the main part of the calcium cation Or magnesium in Sin is represented by the cation of potassium or sodium. 2. Process as mentioned in claim 1 where the aqueous solution contains sugar juice. 3. The process referred to in claim 1, where the aqueous solution contains molasses. 4. The process referred to in claim 1, where the released substance is darkened. Thicken before the recovery of ion exchange resin 5. The process referred to in claim 1, where the monovalent cation of sodium or potassium is added to the released substance before the cation exchange resin is reconditioned. 6. Process referred to in Clause 1, where ion exchange resins With strong acid cation exchange resin in the form of sodium Or potassium And where the procedure The separation was performed by strong acid cation exchange resins in the form of sodium or potassium. And by leaching with water 7. Process referred to in Clause 1, where the said separation procedure Consists of separation by separating substances (Chromatography) 8. The process referred to in claim 1, where the cation concentration of calcium or magnesium in the aqueous solution after exposure is at least approximately 2000 parts per million expressed with a Ca2 + charge compared to Dry matter 9. The process referred to in claim 1, where the cation concentration of calcium or magnesium in aqueous solution after the contact procedure is approximately 2,000 parts per million expressed with the relative Ca2 + charge. With dry matter 1 0. The process referred to in Clause 1, where the separation procedure consists of Part one And the second by separation (Chromatography) by separating the charge.