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2 028 367

(13)

C1

(51)

IPC

(21) (22)

Application

5008525/04, 1991-10-03

(22)

Actual filing date

1991-10-03

(45)

Published

1995-02-09

(72)

Inventor

Shermergorn I.M.Zakirov I.G.Panteleeva A.R.Zakirova R.Sh.

(73)

Holder

Aktsionernoe Obshchestvo

COMPOSITION FOR DEHYDRATION AND DESALTING OF PETROLEUM AND FOR PROTECTION OF OIL FIELD EQUIPMENT AGAINST CORROSION Russian patent published in 1995 - IPC

Abstract RU 2028367 C1

FIELD: oil industry. SUBSTANCE: composition has, wt.-%: nonionogenic demulsifier "Diproxamine 157" on the basis of hydroxyethylated and hydroxypropylated ethylenediamine of the formula [H(OC3H6)m(OC2H4)nOC3H6]2N-CH2CH2-N[OC3H6(OC2H4)n(OC3H6)mH]2 where 4n = 27-28, 4m = 59-61 32.5-58.5 or "Reapon-4B" on the basis of mixture of block-copolymer of the formula H(OC2H4)n(OC3H6)mOH where m = 54, 2n = 31 and where m′=24, , R=CH3, -CH2-CHCH2; N-alkyl-2-methyl-5-ethylpyridinium bromide in which R - C10-C18-alkyl 0.5-2.5; oleic acid 1.4-1.7; hydroxyethylated alkylphenol on the basis of propylene Aф9-10 or Aф9-12 trimers 1.7-8.7; aromatic solvent 5-25, and lower aliphatic alcohol up to 100. EFFECT: enhanced quality of composition. 5 tbl

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RU 2 028 367 C1

Authors

Shermergorn I.M.

Zakirov I.G.

Panteleeva A.R.

Zakirova R.Sh.

Dates

1995-02-09—Published

1991-10-03—Filed

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