Method for inhibiting deposit formation in process equipment ass

Details Method for inhibiting deposit formation in process equipment ass Method for inhibiting deposit formation in process equipment ass

1980-11-17

1982-01-19

Sever, Frank

Distillation: processes, separatory

Addition of material to distilland to inhibit or prevent...

For scale inhibiting or corrosion preventing

260989, 260990, B01D 334, C23F 1100, C23F 1400

Patent

active

043115624

ABSTRACT:
Deposit formation in distillation units, particularly column reboiler units, associated with the separation and purification of dialkyl phosphorochloridothioates from a crude material containing oxygenated compound impurities, is inhibited by incorporating in the feed stock a minor proportion (generally about 0.05 to about 15.0 weight percent) of the condensation product of phenol, and preferably a high molecular weight alkylphenol, an aldehyde and an amine having a H--N< group.

REFERENCES:
patent: 3794703 (1974-02-01), Beck et al.

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