Process for manufacturing 2,4-hexadiyne-1,6-diol

Details Process for manufacturing 2,4-hexadiyne-1,6-diol Process for manufacturing 2,4-hexadiyne-1,6-diol

1988-06-15

1990-08-28

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

568855, 568856, C07C 3118

Patent

active

049522922

ABSTRACT:
A method of manufacturing 2,4-hexadiyne-1,6-diol by the oxidative coupling of propargyl alcohol, in the presence of an aliphatic C.sub.4 alcohol solvent is disclosed. The 2,4-hexadiyne-1,6-diol is completely dissolved in the butanol. Residual salts dissolved in the butanol solution at the end of the reaction are separated out by electrodialysis. The salt-containing stream which is separated out and contains the catalyst salts, water, and butanol is suitable as a reaction mixture, and can be recycled to the reactor.

REFERENCES:
patent: 4427507 (1984-01-01), van Aken
Patel, G. N. "Soluble Polydincetylenes. I. Synthesis and Properties", Polymer Preparations, American Chemical Society, vol. 19, No. 2, pp. 154-159, (1978).

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