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Method for preparing supported corrosion inhibitor

A corrosion inhibitor and supported technology, applied in the field of preparation of supported corrosion inhibitors, can solve the problems of carrying away or extracted substances, waste, limiting the universality of corrosion inhibitors, etc. Effects of storage and transportation

Inactive Publication Date: 2012-07-11
中国文化遗产研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to some problems that the corrosion inhibitor itself cannot overcome
For example, in an open system, the corrosion inhibitor is easily taken away by the flowing medium before it fully functions, or is carried out by the extracted substance, resulting in waste
This greatly limits the universality of the application of corrosion inhibitors

Method used

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  • Method for preparing supported corrosion inhibitor
  • Method for preparing supported corrosion inhibitor
  • Method for preparing supported corrosion inhibitor

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Experimental program
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Embodiment 1

[0031] 1) Experimental part

[0032] 1.1) Raw materials

[0033] Cyclohexane, analytically pure, Beijing Huateng Chemical Co., Ltd.; sodium tungstate, analytically pure, Shantou Xilong Chemical Co., Ltd.; sorbitan monooleate (Span80), chemically pure, Tianjin Guangfu Fine Chemical Research Institute; Octylphenol polyoxyethylene ether-10 (OP-10), chemically pure, Tianjin Guangfu Fine Chemical Research Institute; tetraethyl orthosilicate (TEOS), analytically pure, Beijing Yili Fine Chemicals Co., Ltd.; ammonia water ( The mass fraction is 25%), analytically pure, Beijing Chemical Plant.

[0034] 1.2) Operation method

[0035] Dissolve Span80 and OP-10 emulsifiers in cyclohexane, stir with a magnetic rotor, fully dissolve, transfer to a four-necked reaction flask with a condenser, stirring, and constant pressure dropping funnel, and stir (about 200r / min) for 1h And heated to 35°C, dissolved ammonia and sodium tungstate in water and slowly added dropwise to the reaction bottle ...

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Abstract

The invention relates to a method for preparing a supported corrosion inhibitor. The method comprises the following steps of: (1) dissolving an emulsifying agent in a dispersed medium; (2) dissolving ammonia water and water-soluble corrosion inhibitor in water, and dropwise adding mixed liquor to a water-in-oil emulsion system to form the water-in-oil emulsion system; and (3) dropwise adding tetraethylortho silicate to the water-in-oil emulsion system in the step 2, and reacting for a period of time under the constant temperature and forming the supported corrosion inhibitor. The supported corrosion inhibitor prepared by the method is prevented from being inactive in a corrosion environment; the effective utilization rate of the supported corrosion inhibitor is increased; and the valid period of the supported corrosion inhibitor is prolonged.

Description

technical field [0001] The invention relates to a preparation method of a corrosion inhibitor, more particularly to a preparation method of a loaded corrosion inhibitor. Background technique [0002] Corrosion inhibitor refers to a substance that can reduce the corrosion of the medium and prevent metal corrosion by adding a small amount in the medium. As an economical, effective and versatile metal corrosion protection method, corrosion inhibitor technology occupies an important position in metal corrosion protection technology. It has been widely used in petroleum, chemical industry, energy, transportation, electromechanical, construction and other industrial sectors, and has become an indispensable process measure in some industrial production. However, due to some problems that corrosion inhibitors cannot overcome by themselves. For example, in an open system, the corrosion inhibitor is easily taken away by the flowing medium before it fully functions, or is carried out...

Claims

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Application Information

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IPC IPC(8): B01J13/14C23F11/00
Inventor 李娜沈大娲张治国田兴玲马清林
Owner 中国文化遗产研究院
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