Corrosion inhibitor and its preparation method and application
A corrosion inhibitor and resin dispersant technology, applied in fuel additives, liquid carbon-containing fuels, petroleum industry, etc., can solve problems such as uneven mixing of water-soluble vanadium inhibitors and oil, low effective concentration, and inability to inhibit
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[0023] see figure 1 , a method for preparing a corrosion inhibitor according to an embodiment, comprising the following steps S110-S130.
[0024] S110: Mix 50-200 parts of water, 5-40 parts of water-soluble magnesium salt, 5-10 parts of water-soluble transition metal salt and 1-5 parts of alcohol in parts by mass, and then add 16 to 100 parts of ammonia water are reacted at 150°C to 200°C for 3h to 8h, and solid-liquid separation is performed to obtain a solid intermediate product.
[0025] In one embodiment, in parts by mass, 50 to 200 parts of water, 5 to 40 parts of water-soluble magnesium salt, 5 to 10 parts of water-soluble transition metal salt and 1 to 5 parts of Add the alcohol into the reaction kettle, stir and mix evenly, and add 16 to 100 parts of ammonia water under stirring, raise the temperature to 150°C to 200°C, and stir for 3h to 8h.
[0026] In one embodiment, the water-soluble magnesium salt is at least one selected from magnesium sulfate, magnesium chlori...
Embodiment 1
[0077] Add 180 parts of distilled water, 40 parts of magnesium acetate, 5 parts of zirconium nitrate and 2 parts of ethanol into the hydrothermal reaction kettle in terms of parts by mass, stir evenly, then add 45 parts of saturated ammonia water, heat up to 180°C, react for 4 hours, and centrifuge Intermediate product A was obtained after separation and washing.
[0078] In parts by mass, add 10 parts of intermediate product A, 9.5 parts of methyl oleate, 2 parts of ethylene glycol, 6 parts of distilled water, 0.5 parts of tert-amyl peroxycaprylate and 80 parts of heavy alkyl in the autoclave Benzene, stirred and heated to 280°C, reacted for 4 hours, removed water and part of the solvent in the system, and obtained 85 parts of the initial product, which was a brown translucent solution. After testing, the total metal mass content in the primary product is 4.3%. Add 0.37 parts of α-terpene resin to the initial product, and concentrate by distillation under reduced pressure to...
Embodiment 2
[0080] Add 50 parts of distilled water, 18 parts of magnesium formate, 5 parts of yttrium nitrate and 1 part of methanol into the hydrothermal reaction kettle in terms of parts by mass, stir evenly, then add 16 parts of saturated ammonia water, heat up to 150°C for 3 hours, and centrifuge , After washing, the intermediate product B is obtained.
[0081] Add 5 parts of intermediate product B, 9 parts of dodecylbenzenesulfonamide, 1 part of glycerol, 5 parts of distilled water, 1 part of tert-butyl peroxyester and 85 parts of mineral oil in the autoclave in parts by mass , stirred and heated to 260°C, reacted for 3 hours, removed water and part of the solvent in the system, and obtained 78 parts of the initial product, which was a brown translucent solution. After testing, the total metal mass content in the primary product is 2.6%. Add 0.1 part of sulfosuccinate to the initial product, and concentrate by distillation under reduced pressure to obtain the finished product of cor...
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