Title: Process for directly producing high quality white sugar from sugarcane
Application Number: 200510035131 Application Date: 2005.06.08
Publication Number: 1699603 Publication Date: 2005.11.23
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C13D1/02,C13F1/00
Applicant(s) Name: Huo Hanzhen Address: 510180
Inventor(s) Name:
Attorney & Agent: li haibei
Abstract:
     The present invention discloses a process in which high quality white sugar is directly produced from sugarcane. The first step of the process is low temperature phosphorus floatation method to remove most insolubles and parts of organic colloids, obtaining clean solution. The second step is to further increase the quality of the cane solution, this step has the following three alternative methods depending on the actual situations: 1) blowing sulphur dioxide in lime milk and decolourant, and heating and precipitation separating, 2) blowing carbon dioxide which is produced from alcohol fermentation, and precipitating by adding lime milk, followed by phosphoric acid gas floatation separation. 3) treating with electrolysis method. Adopting the present invitation, the clean solution has the properties of light color and high purity. The quality of the product of white sugar meets the standard of 'beverage sugar'. The production rate and digestion recycle rate are obviously higher than that of the conventional sulfurous acid process. Therefore, the present technology has good economic efficiency. The equipment investment and production cost is low.
Time: 4