Sorbitol production line turnkey project
Process of sorbitol
(1) Blending: Adjusting concentration of dextrose syrup to 45-50% by R.O water, then adding alkali to maintain ph value, after that adding catalyst.
(2) Hydrogenation: Pump the prepared dextrose syrup into reactor, then heating and continous feeding hydrogen gas into reactor for reaction. The dextrose will be converted to sorbitol under suitable temperature, presuure and a certain of time.
(3) Sedimentation: The crude sorbitol solution is sent to settling tank for catalyst sedimentation and recovery.
(4) Filtration: After precipitation, the sorbitol solution needs to be filtered to remove the residual catalyst.
(5) Decolorization: Remove the colored substances in sorbitol solution by active carbon.
(6) Ion exchange: Remove the salt and organic existing in the sorbitol solution by the ion exchange resin to improve the quality of the product.
(7) Evaporation: Increase the concentration of sorbitol solution by evaporation to meet the concentrate requirement of product.
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