Gemini type bimolecular Sciff base waste water corrosion inhibitor and preparation method thereof

A Schiff base and bimolecular technology, applied in the field of petrochemical industry, can solve the problems of complex synthesis process, easy hydrolysis of imidazoline, loss of raw material solvent, etc., and achieve the effects of high corrosion inhibition efficiency, small environmental pollution, and low dosage

Active Publication Date: 2014-06-11
XI'AN PETROLEUM UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, its shortcomings are also very obvious. On the one hand, the synthesis process is complicated, and the loss of raw material solvents is serious;

Method used

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  • Gemini type bimolecular Sciff base waste water corrosion inhibitor and preparation method thereof
  • Gemini type bimolecular Sciff base waste water corrosion inhibitor and preparation method thereof
  • Gemini type bimolecular Sciff base waste water corrosion inhibitor and preparation method thereof

Examples

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Effect test

Embodiment 1

[0025] A kind of Gemini type bimolecular Schiff base sewage corrosion inhibitor comprises following components, by weight percentage:

[0026] Schiff base 20%;

[0027] Benzotriazole 9%;

[0028] Thioglycolic acid 5%;

[0029] Octylphenol polyoxyethylene ether (OP-10) 3%;

[0030] Solvent 63%;

Embodiment 2

[0032] A kind of Gemini type bimolecular Schiff base sewage corrosion inhibitor comprises following components, by weight percentage:

[0033] Schiff base 10%;

[0034] Benzotriazole 6%;

[0035] Thioglycolic acid 2%;

[0036] Tween 80 1%;

[0037] Solvent 81%;

Embodiment 3

[0039] A kind of Gemini type bimolecular Schiff base sewage corrosion inhibitor comprises following components, by weight percentage:

[0040] Schiff base 16%;

[0041] Benzotriazole 8%;

[0042] Thioglycolic acid 4%;

[0043] Tween 80 2%;

[0044] Ethylene glycol 70%;

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Abstract

The invention relates to a Gemini type bimolecular Sciff base waste water corrosion inhibitor. The corrosion inhibitor is characterized by comprising the following components by weight percent: 10-20 percent of Sciff base, 6-9 percent of benzotriazol, 2-5 percent of thioglycollic acid, 1-3 percent of surface active agent and 63-81 percent of solvent. A method for preparing the Gemini type bimolecular Sciff base waste water corrosion inhibitor comprises the following steps: (1) a bimolecular Sciff base compound 1,5-bi(hydroxybenzhydrazide)-pentane is synthesized from the raw materials of salicylyl hydrazine and glutaric dialdehyde; and (2) the bimolecular Sciff base compound 1,5-bi(hydroxybenzhydrazide)-pentane prepared in the step (1) is compounded to obtain the corrosion inhibitor according to the weight percent: 10-20 percent of Sciff base compounds and 80-90 percent of compounds. The corrosion inhibitor can restrain the corrosion of waste water media, and guarantees the safe operation of water injection pipelines during production.

Description

Technical field [0001] The present invention involves the field of petrochemical technology and specially involves a Gemini biparbinoleum Sether -alkaline sewage corrosion and its preparation methods. Background technique [0002] The non -average quality of the Chinese land phase storage storage collection is serious, and most of them are mining for water injection development. During the mining process, they have obtained extremely rich water injection dynamic monitoring materials.A large number of comprehensive research work has been conducted, and the characteristics of water injection development have a clear and profound understanding.Compared with other drives, water has the characteristics of cheap, sufficient supply, and high oil -repellent effect.Therefore, most of the oil fields use water injection development as the preferred way to develop oil fields.However, with the use of sewage injection, the problem of corrosion also follows.For every 1 ton of oil, it needs to b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F11/16
Inventor 吕祥鸿赵国仙南叶飞张钧
Owner XI'AN PETROLEUM UNIVERSITY
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