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Environment-friendly water-based metal cleaner

A cleaning agent and metal-based technology, which is applied in the field of industrial cleaning, can solve the problems of shortened service life of equipment, influence of equipment filtration and heat exchange effects, economic losses, etc., to prevent over-corrosion, excellent degreasing effect, and small environmental hazards Effect

Inactive Publication Date: 2015-06-24
CHANGZHOU VOCATIONAL INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In iron and steel, chemical industry, electric power, light textile, food, pharmaceutical and other industries, important equipment such as reverse osmosis equipment, heat exchangers, condensers, filters, etc., often occur due to water quality and temperature changes during production and operation. The phenomenon of dirt accumulation, which will have a serious impact on the filtration and heat exchange effect of the equipment, leading to serious consequences
Reasonable and effective cleaning of these equipment has practical significance. The cleaning of metal equipment has gone through the stages of manual cleaning, physical cleaning (such as high-pressure cleaning, steel ball thrust cleaning) and traditional chemical cleaning. These cleaning methods have poor effects and are very It is prone to corrosion and damage to metal pipes and screens, which will shorten the service life of equipment and cause huge economic losses

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Use the following process to carry out the following treatment on the same two 304 stainless steel sheet samples:

[0019] 1) Preparation of treatment solution: Add 3g / L of nonylphenol polyoxyethylene ether (TX-4) and 4g / L of dodecyl dimethyl benzyl ammonium chloride (1227) to two surfactants L sodium hydroxide, 1g / L potassium nitrate, 3g / L sodium metaphosphate, 2g / L triethanolamine dissolved in deionized water;

[0020] 2) Sample pretreatment: weigh the sample P 1 , and then submerged in artificial oil, took out and weighed P 2 ;

[0021] 3) Degreasing: Put the oiled workpiece in the treatment solution at 55°C for 6 minutes, then wash it for 6 minutes, take it out, wash it in deionized water at 55°C for 10 times, dry it and weigh it again. 3 , and then the sample was washed with absolute ethanol and dried and weighed P 4 ;

[0022] Result analysis:

[0023] Sample 1: P 1 =7.8021g, P 2 =7.8807g,P 3 =7.8017g, P 4 =7.8011g;

[0024] Sample 2: P 1 =7.8204g,P 2...

Embodiment 2

[0032] The same two Q235A steel sheet samples were treated as follows by the following process:

[0033] 1) Preparation of treatment solution: 2g / L nonylphenol polyoxyethylene ether (TX-4) and 2g / L dodecyldimethylbenzyl ammonium chloride (1227) were added into 6g / L L ammonia water, 2g / L ammonium nitrate, 3g / L potassium pyrophosphate, 1g / L triethanolamine borate fat dissolved in deionized water;

[0034] 2) Sample pretreatment: weigh the sample P 1 , and then submerged in artificial oil, took out and weighed P 2 ;

[0035] 3) Degreasing: Put the oiled workpiece in the treatment solution at 55°C for 6 minutes, then wash it for 6 minutes, take it out, wash it in deionized water at 55°C for 10 times, blow it dry, and then weigh it. 3 , and then the sample was washed with absolute ethanol and dried and weighed P 4 ;

[0036] Result analysis:

[0037] Sample 1: P 1 =7.9104g, P 2 =7.9984g,P 3 =7.9105g,P 4 =7.9103g;

[0038] Sample 2: P 1 =7.9172g,P 2 =8.0020g,P 3 =7.918...

Embodiment 3

[0046] The same two Q235A steel sheet samples were treated as follows by the following process:

[0047] 1) Prepare treatment solution: add 5g / L nonylphenol polyoxyethylene ether (TX-4) and 3g / L dodecyldimethylbenzyl ammonium chloride (1227) to two surfactants L sodium hydroxide aqueous solution, 5g / L sodium nitrate, 5g / L sodium metaphosphate, 3g / L triethanolamine dissolved in deionized water;

[0048] 2) Sample pretreatment: weigh the sample P 1 , and then submerged in artificial oil, took out and weighed P 2 ;

[0049] 3) Degreasing: Put the oiled workpiece in the treatment solution at 55°C for 6 minutes, then wash it for 6 minutes, take it out, wash it in deionized water at 55°C for 10 times, blow it dry, and then weigh it. 3 , and then the sample was washed with absolute ethanol and dried and weighed P 4 ;

[0050] Result analysis:

[0051]Sample 1: P 1 =7.9214g, P 2 =7.8624g, P 3 =7.8218g,P 4 =7.8212g;

[0052] Sample 2: P 1 =7.9270g,P 2 =8.0231g, P 3 =7.826...

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Abstract

The invention discloses an environment-friendly water-based metal cleaner. The environment-friendly water-based metal cleaner comprises the following components: 4-10g / L of surfactant, 1-10g / L of alkali compound, 1-10g / L of nitrate, 1-10g / L of phosphate and 1-5g / L of amine salt. By adopting the cleaner, the oil removing effect on the surface of a workpiece is increased, simultaneously the corrosion to the workpiece is low and the cleaning residual solution hardly causes environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of industrial cleaning, and in particular relates to an environment-friendly water-based metal cleaning agent. Background technique [0002] In industrial production, the renewal of equipment and storage and transportation pipelines accounts for a large proportion of production costs. The scrapping caused by the accumulation of dirt in equipment and pipelines is an important reason for this cost, and the economic loss is often too large for many enterprises to bear. Therefore, it is the urgent desire of enterprises to choose reasonable methods to remove dirt and prolong the service life of equipment and pipelines. Industrial cleaning agents are gradually becoming the most important means of equipment and pipeline maintenance. [0003] In iron and steel, chemical industry, electric power, light textile, food, pharmaceutical and other industries, important equipment such as reverse osmosis equipment, heat exc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/14
CPCC23G1/14
Inventor 李树白马迪耿昌进姚晨赵昊昱刘英莉
Owner CHANGZHOU VOCATIONAL INST OF ENG
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