Compositions – Preservative agents – Anti-corrosion
Patent
1983-06-23
1984-10-02
Pertilla, Theodore E.
Compositions
Preservative agents
Anti-corrosion
252358, 525504, 525523, B01D 1704, C08L 6114
Patent
active
044746822
ABSTRACT:
The new petroleum breakers are obtained by reacting, at 90.degree. to 160.degree. C. and at a pH value of 6 to 9, (a) an addition product which has been obtained by reacting phenol with formaldehyde or acetaldehyde in a molar ratio of 1:1 to 3 at a temperature of 50.degree. to 80.degree. C., in the presence of an alkaline catalyst, with (b) a block polymer which contains nitrogen and which has been obtained by an addition reaction in which 10 to 80 moles of ethylene oxide and propylene oxide are added on, as a statistical average per nitrogen atom, the molar ratio of ethylene oxide to propylene oxide being 1:0.5 to 14, to ethylenediamine, propylenediamine, polyethylenepolyamines, polypropyleneamines or mixtures thereof, the ratio being 1 to 20 moles of (a) to 1 mole of (b). They are distinguished by a high degree of effectiveness when used for separating petroleum emulsions. Products which in some cases have an even greater effect are obtained if the reaction product of (a) and (b) is propoxylated.
REFERENCES:
patent: 2743254 (1956-04-01), De Groote
patent: 4117031 (1978-09-01), Macenka et al.
Billenstein Siegfried
Gohlke Fritz J.
Hoechst Aktiengesellschaft
Pertilla Theodore E.
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