Title: Process for production of aliphatic phosphonic acids
Application Number: 86107566 Application Date: 1986.10.17
Publication Number: 1012343 Publication Date: 1987.07.29
Approval Pub. Date: 1993.01.27 Granted Pub. Date: 1993.01.27
International Classifi-cation: C07F9/38
Applicant(s) Name: Union Carbide Agricultural Products Co. Address:
Inventor(s) Name: John Joseph Zullo;Kai Wing Young
Attorney & Agent: YANG LIQIN
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.
Time: 7