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2 092 612

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Application

95117277/02, 1995-10-11

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Actual filing date

1995-10-11

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Published

1997-10-10

(72)

Inventor

Kajbyshev F.V.Khisamutdinov N.I.Kuzin G.M.Evstifeev V.P.Pestrikov S.V.Mironov I.V.Shitov G.P.Ismagilov N.A.Mikhalev V.S.

(73)

Holder

Vnedrencheskij Nauchno-Issledovatel'Skij Inzhenernyj TsentrUfimskoe Gosudarstvennoe Proizvodstvennoe Predprijatie

COMPOSITION FOR INHIBITING HYDROCHLORIC ACID Russian patent published in 1997 - IPC

Abstract RU 2092612 C1

FIELD: acid damage protection. SUBSTANCE: invention deals with production of inhibited hydrochloric acid employed in oil production, in particular, with compositions for inhibiting fuming hydrochloric acid. Composition contains 2-10 wt % of condensation product of mono- and dichlorophenols with formaldehyde and dimethylamine and 90-98 wt % of product obtained by treating with formaldehyde mother solution from benzenesulfonic acid chloride amidation by aqueous ammonia in the chloramine B production. EFFECT: reduced cost. 1 tbl

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RU 2 092 612 C1

Authors

Kajbyshev F.V.

Khisamutdinov N.I.

Kuzin G.M.

Evstifeev V.P.

Pestrikov S.V.

Mironov I.V.

Shitov G.P.

Ismagilov N.A.

Mikhalev V.S.

Dates

1997-10-10—Published

1995-10-11—Filed

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