Method and plant for the production of refined sugar from a sugared juice
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United States of America Patent
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Jun 27, 2006
Grant Date -
Dec 18, 2003
app pub date -
Apr 14, 2003
filing date -
Apr 17, 2002
priority date (Note) -
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Abstract
Method for producing refined sugar from sugared juice, such as raw juice from sugar cane or from sugar beet, containing sugar and impurities, which comprises the operations of: tangential filtration of the sugared juice in order to obtain a retentate and a filtrate, softening of the filtrate in order to obtain a softened filtrate, concentration of the softened filtrate in order to obtain a softened syrup, chromatography of the softened syrup in order to obtain an extract enriched in sugars and a raffinate enriched in impurities, crystallisation of the extract in two or more crystallisation/separation steps in order to obtain refined sugar and a run-off, and combination of the run-off with the softened syrup in order that they are both subjected to the chromatography operation.
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