Process for the recovery of glycols from an aqueous solution

Details Process for the recovery of glycols from an aqueous solution Process for the recovery of glycols from an aqueous solution

1974-05-31

1976-01-06

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260462A, 260533R, 260635H, 423279, C07C 2726

Patent

active

039313425

ABSTRACT:
A process for the recovery of glycols such as ethylene glycol, propylene glycols, and butylene glycols from an aqueous solution containing a glycol, a dissolved alkali metal borate and osmium compounds comprising coprecipitating the borate and reduced osmium compound from the aqueous solution with water soluble organic solvents, separating the precipitated borate and osmium compound from the solution and recovering the glycol from the remaining water/solvent/glycol solution. The aqueous solutions are derived from the aqueous phase oxidation of an olefin with molecular oxygen in the presence of an octavalent osmium and a borate to prepare the corresponding glycol.

REFERENCES:
patent: 2116665 (1938-05-01), Brown
patent: 2389263 (1945-11-01), Liebmann et al.
patent: 2916525 (1959-12-01), Giesen et al.
patent: 3053880 (1962-09-01), Dale
patent: 3483264 (1969-12-01), Tsao

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