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Process for selectively purifying sugar beet diffusion juice and by-product recovery of valuable organic acids therefrom

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专利汇可以提供Process for selectively purifying sugar beet diffusion juice and by-product recovery of valuable organic acids therefrom专利检索,专利查询,专利分析的服务。并且A process for selectively purifying sugar beet diffusion juice in which the raw diffusion juice is first neutralized to minimize inverted sugar formation and stabilize the colloidal content without precipitating the soluble organic acids. The neutralized diffusion juice is then subjected to high centrifugal forces to separate the colloidal and particulate content from the diffusion juice. After the colloidal and particulate solids are removed, the clarified diffusion juice is contacted with a stoichiometric equivalent or slight excess of lime based upon the soluble organic acid concentration in the diffusion juice to react with the soluble organic acids to form insoluble calcium salts of the organic acids. The insoluble calcium salts of the organic acids are then removed from the diffusion juice. The diffusion juice may be further purified as needed. The insoluble calcium salts of the organic acids are then placed in an aqueous solution such as hot water. Carbon dioxide gas or other suitable carbonate ion producing agent is dissolved in the hot water to release the organic acids and produce a calcium carbonate precipitate. The dissolved organic acids are then selectively recovered by conventional means.,下面是Process for selectively purifying sugar beet diffusion juice and by-product recovery of valuable organic acids therefrom专利的具体信息内容。

  • 2. In the process defined in claim 1 wherein the colloidal and particulate impurities are selectively removed from the juice by subjecting the colloidal and particulate impurities to centrifugal forces of between 10,000 g''s and 100,000 g''s.
  • 3. In the process defined in claim 1 wherein the aqueous solution containing the redissolved organic acid is further processed to remove any remaining calcium ions.
  • 4. In the process defined in claim 1 further comprising the step of treating the aqueous diffusion beet sugar juice with a pH adjusting agent to raise the pH of the juice above 6.5 prior to removal of the colloidal and particulate impurities without precipitating the organic acid.
  • 5. In the process defined in claim 4 further comprising the step of heating the aqueous diffusion beet sugar juice to a temperature between 85* C. and 100* C. prior to removing the colloidal and particulate impurities.
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