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2 673 268

(13)

(51)

IPC

C23F11/08(2006-01-01)

C23F11/10(2006-01-01)

(21) (22)

Application

2016119786, 2014-10-16

(24)

Start date

2014-10-16

(22)

Actual filing date

2014-10-16

(45)

Published

2018-11-23

(72)

Inventor

Lyu ChzhenvejRamachandran SunderPanchaliangam VajtilingamGarza Timoti Z.Sted Pol RobertKuk Styuart EduardRiverz Gordon T.Tyu VuMakichern Kheter

(73)

Holder

Baker Hughes Incorporated

CHEMICAL INHIBITION OF PITTING CORROSION IN METHANOLIC SOLUTIONS CONTAINING ORGANIC HALIDE Russian patent published in 2018 - IPC C23F11/08 C23F11/10

Abstract RU 2673268 C2

FIELD: chemistry; metallurgy.

SUBSTANCE: invention relates to the field of protecting metals from corrosion and can be used to inhibit pitting corrosion of stainless steel. Methanolic solution contains water, methanol, at least one organic halide and at least one compound selected from the group consisting of organic hydroxy acid and its salts with alkali metals, and its salts with amines, and combinations thereof. Method includes reacting said methanolic solution with stainless steel.

EFFECT: reduction of pitting corrosion of stainless steel.

17 cl, 2 tbl, 1 dwg

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RU 2 673 268 C2

Authors

Lyu Chzhenvej

Ramachandran Sunder

Panchaliangam Vajtilingam

Garza Timoti Z.

Sted Pol Robert

Kuk Styuart Eduard

Riverz Gordon T.

Tyu Vu

Makichern Kheter

Dates

2018-11-23—Published

2014-10-16—Filed