Title: Sugar production process using boiler flue gas as clarificant
Application Number: 200510032858 Application Date: 2005.01.21
Publication Number: 1654682 Publication Date: 2005.08.17
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C13D3/06
Applicant(s) Name: South China University of Technology Address: 510640
Inventor(s) Name: Yu Shujuan, Shang Mingjiu, Fu Xiong
Attorney & Agent: yang xiaosong
Abstract:
     The present invention is sugar refining process with boiler fume as the clarifier, and the sugar refining process includes the steps of extracting crude sugar liquid, purifying crude sugar liquid and producing high quality sugar. During purifying crude sugar liquid, calcium oxide or regenerated filtering mud are added, and boiler fume with CO2 content of 6-17 is introduced for reaction with calcium oxide or regenerated calcium oxide to produce calcium carbonate adsorbing non-sugar impurity in the sugar liquid, with the volume ratio between boiler fume and crude sugar liquid being 100-300, and the mass ratio between boiler fume and calcium oxide or regenerated filtering mud being 5-30. The present invention has high sugar liquid purifying effect, sugar liquid purity raised by 2-13 %, reduced lime consumption, reduced CO2 exhaust of boiler, and raised economic utility and environment utility.
Time: 7
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