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Environmental-protection type multifunctional efficient acid washing mist inhibition corrosion inhibitor

A corrosion inhibitor, multi-functional technology, applied in the field of metal surface cleaning and treatment, can solve the problems of large quality difference, single function, unsatisfactory use effect of mixed acid, etc., to achieve good surface whiteness, fast rust removal, good pickling Corrosion inhibitory effect

Inactive Publication Date: 2015-08-26
浏阳市三鹰新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an environment-friendly, multi-functional, high-efficiency pickling anti-fog and corrosion inhibitor for the current situation that the current pickling anti-fog and corrosion inhibitor has a single function, the quality of pickling for different materials of steel varies greatly, and the effect of mixed acid is not ideal. its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] It is prepared from the following raw materials: Pingpingjia 2, sodium dodecylbenzenesulfonate 2, urotropine 5, sodium citrate 3, ethylenediaminetetraacetic acid 5, sodium thiosulfate 2, benzene Paratriazole 0.2, fatty alcohol polyoxyethylene ether 1, potassium iodide 0.1, water 79.7.

[0019] Add the Pingpingjia and sodium dodecylbenzene sulfonate in said parts by weight successively into water and stir until they are completely dissolved, then add urotropine, sodium citrate, ethylenediaminetetraacetic acid, benzotriazole, sulfur Sodium sulfite, stirring while adding, until completely dissolved, finally add penetrating agent fatty alcohol polyoxyethylene ether, potassium iodide, and replenish water to the specified amount, to obtain a high-efficiency pickling anti-fog corrosion inhibitor.

Embodiment 2

[0021] It is prepared from the following raw materials: Pingpingjia 2, sodium dodecylbenzenesulfonate 2, urotropine 5, sodium citrate 3, potassium sodium tartrate 5, sodium chloride 2, benzotriazepam Azole 0.2, ethanol 1, water 79.8.

[0022] Add the Pingpingjia and sodium dodecylbenzenesulfonate in the parts by weight successively into water and stir until completely dissolved, then add urotropine, sodium citrate, potassium sodium tartrate, benzotriazole, sodium chloride in sequence , Stir while adding until completely dissolved, finally add penetrant ethanol, and replenish water to the specified amount to obtain a high-efficiency pickling anti-fog corrosion inhibitor.

Embodiment 3

[0024] It is prepared from the following raw materials: Pingpingjia 3, sodium dodecylbenzenesulfonate 3, urotropine 5, sodium citrate 3, ethylenediaminetetraacetic acid 5, ammonium chloride 2, benzene Triazole 0.2, penetrant fatty alcohol polyoxyethylene ether 1, water 77.8.

[0025] Add Pingpingjia and sodium dodecylbenzene sulfonate in said parts by weight successively into water and stir until completely dissolved, then add urotropine, sodium citrate, ethylenediaminetetraacetic acid, benzotriazole, chlorine Ammonium chloride, stirring while adding, until completely dissolved, finally add penetrating agent fatty alcohol polyoxyethylene ether, and replenish water to the specified amount, to obtain a high-efficiency pickling anti-fog corrosion inhibitor.

[0026] The invention discloses an environment-friendly multifunctional high-efficiency pickling anti-fog corrosion inhibitor, which is composed of the following raw materials by weight: 2-6 surfactants, 8-15 corrosion inhibi...

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Abstract

The invention belongs to the technical field of metal surface cleaning treatment, and more particularly relates to an environmental-protection type multifunctional efficient acid washing acid inhibition corrosion inhibitor, which is formed by mainly compounding 2-6 parts of a surfactant, 8-15 parts of a corrosion inhibitor, 0.5-1 part of a penetrating agent, 2-4 parts of an acid washing accelerating agent, 74-87.5 parts of water, and other components, wherein the product achieves the optimal mist inhibition corrosion inhibition effect in the acid washing through the synergy effect of various components. The corrosion inhibitor of the present invention has the following beneficial effects that: (1) the rust removing is fast, the rust removing speed is significantly increased with the additions of the penetrating agent and the accelerating agent, and the rust can be completely removed within 5-30 min when the addition amount is 2%; (2) the mist inhibition property is good, and the good mist inhibition effects are provided for hydrofluoric acid, nitric acid, and the like; and (3) the corrosion inhibition is good .

Description

technical field [0001] The invention belongs to the technical field of metal surface cleaning treatment, and in particular relates to an environment-friendly, multifunctional, high-efficiency pickling acid-suppressing and corrosion-inhibiting agent. Background technique [0002] Pickling and rust removal is a commonly used process for surface cleaning and pre-processing of steel products. It is widely used in metal materials, metal material surface treatment, machinery, metallurgy, chemical industry and other industries. Hydrochloric acid is the most widely used pickling agent. Hydrochloric acid pickling has the advantages of the largest pickling capacity and fast speed. And in the industry, according to the steel composition and the forming industry, in order to achieve a better rust removal effect, a certain amount of nitric acid or hydrofluoric acid is usually added to hydrochloric acid for rust removal treatment. However, due to the volatility of these acids and the che...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/06C23G1/04
Inventor 汤青生戴国凤
Owner 浏阳市三鹰新材料有限责任公司
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