MX2008012077A - Machine for the separation of interleaved organic or inorganic fibres by means of fluidized bed plenum. - Google Patents

Abstract

The present invention refers to a process for purifying sugar syrup, best known as liquid sugar, which is prepared with granulated raw cane sugar in order to obtain a product called purified liquid sugar; said product has a purity degree, regarding the ashes content and colour, similar to or higher than the purity of a syrup prepared from granulated refined cane sugar, which is equivalent to a content of ICUMSA conductimetric ashes lower than 0.04 % and a colour lower than 45 ICUMSA units. The increase in the content of direct reducing sugars in the product is lower than 0.2 % with regard to the content of reducing sugars in the granulated raw cane sugar used as raw material in the present process, and the pH is maintained in a range of from about 6.0 % to about 7.5 %. The process consists in the dissolution of granulated raw sugar for obtaining syrup, the filtration and primary discoloration of the syrup by the ionic exchange of resins of the strong base anionic type, the demineraliz ation and complete discoloration of the syrup by the ionic exchange of resins of the anionic and cationic type packed in a mixed bed column, the polish of the syrup by bringing the same into contact with an adsorbent material in powder and the filtration and treatment of the syrup with UV beams.