Assertion: tartaric acid's use | /r/AtLocation | fixed bed
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Source sentences:
text: The present invention describes a process for the production of tartaric acid and a concentrate of grape anthocyanin pigments, from winery by-products, by means of an operation of selective adsoφtion of the pigments onto a polymeric adsorbent resin and the use of an ion exchange process using a strong cation resin, contained in a fixed bed, to produce the tartaric acid.