Cleaning fluid for removing rust, preparation method and application thereof
A technology of cleaning liquid and rust, which is applied in the field of cleaning liquid for removing rust, can solve the problems of eutrophication of water body, slow scale dissolution rate, hydrogen embrittlement of atomic hydrogen, etc., to slow down the corrosion rate, increase the scale dissolution rate, and slow down hydrogen embrittlement Effect
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[0051] In a second aspect, an embodiment of the present invention provides a method for preparing the above-mentioned cleaning solution, which specifically includes the following steps:
[0052] Add clean water into the liquid mixing tank, add organic acid, organic acid salt, chelating agent, osmotic cosolvent and corrosion inhibitor in sequence under stirring, and stir for 20-40 minutes to obtain the cleaning solution.
[0053] The preparation method has a simple process, does not require complex equipment, and has low cost, which is beneficial to popularization and application of the cleaning solution provided by the embodiment of the present invention.
[0054] In a third aspect, an embodiment of the present invention provides an application of the above-mentioned cleaning solution in removing rust in an oil field.
[0055] The cleaning solution provided by the embodiments of the present invention has a good ability to remove rust generated in various positions in the oil f...
Embodiment 1
[0072] This embodiment provides a cleaning solution for removing rust, and the cleaning solution includes the following components in mass percentages based on the total mass of the cleaning solution as 100%:
[0073] 2-Hydroxypropane-1,2,3-tricarboxylic acid, 5%;
[0074] 8-Hydroxyquinoline citrate, 2.15%;
[0075] Tetrasodium glutamate diacetate, 10%;
[0076] Penetration aid, 3%;
[0077] 2-methyl-2-imidazoline, 0.1%;
[0078] Water, 79.75%.
[0079] Wherein, the penetration co-solvent is prepared by the following method:
[0080] Weigh 3kg of sodium dodecylbenzenesulfonate, 200kg of ethylene glycol and 285kg of clear water according to the measurement and pour them into a 1000L enamel reaction kettle, heat the temperature of the reaction kettle to 40°C, stir and react for 30min, and then continue to add 40kg of tripolyphosphine into the reaction kettle sodium dodecylbenzenesulfonate, 16kg of sodium dodecylbenzenesulfonate, and 260kg of clear water with a pH of 6.5 to ...
Embodiment 2
[0092] This embodiment provides a cleaning solution for removing rust, and the cleaning solution includes the following components in mass percentages based on the total mass of the cleaning solution as 100%:
[0093] 2-Hydroxypropane-1,2,3-tricarboxylic acid, 10%;
[0094] 8-Hydroxyquinoline citrate, 4.5%
[0095] Tetrasodium glutamate diacetate, 10%;
[0096] Penetration aid, 4%;
[0097] 2-methyl-2-imidazoline, 0.1%;
[0098] Water, 71.4%.
[0099] Wherein, the penetration co-solvent is prepared by the following method:
[0100] Weigh 3kg of sodium dodecylbenzenesulfonate, 180kg of ethylene glycol and 270kg of clear water according to the measurement and pour them into a 1000L enamel reaction kettle, heat the temperature of the reaction kettle to 40°C, stir and react for 30min, and then continue to add 40kg of tripolyphosphine into the reaction kettle sodium dodecylbenzenesulfonate, 16kg of sodium dodecylbenzenesulfonate, and 320kg of clear water with a pH of 6.5 to 7....
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