Patents Assigned to Chemishe Fabrik Budenheim
  • Process for separating a phosphoric acid-solvent solution
    Patent number: 4117092
    Abstract: There is disclosed a countercurrent multi-stage process for separating an organic solvent from a phosphoric acid solvent solution by the addition of an alkali material such that the ratio of Na.sub.2 O to P.sub.2 O.sub.5 in the water phase in each stage is from 0.45:1 to 0.90:1 whereby substantially all the organic solvent is recovered from the starting solution in the final stage of the extractor.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: September 26, 1978
    Assignee: Chemishe Fabrik Budenheim
    Inventors: Klaus Beltz, Klaus Frankenfeld