Use of phosphate and thiophosphate esters neutralized with water

Details Use of phosphate and thiophosphate esters neutralized with water Use of phosphate and thiophosphate esters neutralized with water

1984-05-04

1985-09-17

Gantz, D. E.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By c content reduction, e.g., cracking, etc.

585648, 585950, 208 47, 208 48AA, C07C 1104, C10G 916

Patent

active

045422532

ABSTRACT:
An improved method of reducing fouling and corrosion in ethylene cracking furnaces using petroleum feedstocks, the improvement comprising treating the petroleum feedstock with at least 10 ppm of a compound chosen from the group consisting of phosphite esters, phosphate esters, thiophosphite esters, thiophosphate esters and mixtures thereof, said esters being characterized by the formulas: ##STR1## where X equals S or O, and R.sub.1, R.sub.2, and R.sub.3, are each independently selected from the group consisting of hydrogen, water soluble amine, alkyl, aryl, alkaryl, cycloalkyl, alkenyl, and aralkyl group provided that in at least one and not more than two of each R.sub.1, R.sub.2, and R.sub.3 are water soluble amines having partition coefficients greater than 1.0.

REFERENCES:
patent: 4024048 (1977-05-01), Shell et al.
patent: 4024049 (1977-05-01), Shell et al.
patent: 4024050 (1977-05-01), Shell et al.
patent: 4024051 (1977-05-01), Shell et al.
patent: 4105540 (1978-08-01), Weinland
patent: 4106904 (1978-08-01), Oudeauuke et al.
patent: 4154779 (1979-05-01), Kreutzer
patent: 4229284 (1980-10-01), White et al.
patent: 4425223 (1984-01-01), Miller
patent: 4444649 (1984-04-01), Dvoracek

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