Process for the production of aliphatic phosphonic acids
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United States of America Patent
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Mar 1, 1988
Issued Date -
N/A
app pub date -
May 26, 1987
filing date -
Oct 18, 1985
priority date (Note) -
Expired
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Abstract
An improvement in the process for the manufacture of aliphatic phosphonic acid the improvement comprising maintaining the reaction zone volume at about 80 to 95 percent capacity of reactants and/or products by continuously adding diester of aliphatic phosphonic acid reactant up to about 60 percent of the total reaction time said reactant being added in an amount sufficient such that said reactants and/or products will always be present in said reactor so as to occupy at least 80 percent of the reaction zone volume during said reactant addition.
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