Removal of heavy metal ions from wine and wine-like beverages
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United States of America Patent
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Mar 10, 1992
Grant Date -
N/A
app pub date -
Jan 9, 1991
filing date -
Jan 16, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for removing heavy metal ions from wine and wine-like beverages, which entails treating each 100 l of the beverage with from 5 to 250 g of a polymer which contains, as copolymerized units, from 50 to 99.5% by weight of at least one basic vinylheterocycle with a pK.sub.a of not less than 3.8 and from 0 to 49.5% by weight of another copolymerizable monomer, and which has been prepared with the exclusion of oxygen and of polymerization initiators and in the presence of from 0.5 to 10% by weight, based on the monomers, of a crosslinker.
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