Refining tetrahydrofuran

Details Refining tetrahydrofuran Refining tetrahydrofuran

1981-05-04

1982-09-07

Sever, Frank

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

549429, B01D 334

Patent

active

043482627

ABSTRACT:
In the refining of crude acidic tetrahydrofuran prepared from acetylene and formaldehyde, corrosion of refining equipment and formation of color-producing methacrolein can be minimized by bringing the pH value of the crude tetrahydrofuran to within the range 5-11 before the refining step.

REFERENCES:
patent: 4093633 (1978-06-01), Tanabe et al.
patent: 4197248 (1980-04-01), Copelin et al.
Chemical Engineer's Handbook, Perry, 4th ed., 1963, pp. 23-5 and 23-6.

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