Degradable environment-friendly dirt remover

A stripping agent, an environment-friendly technology, applied in the field of degradable and environment-friendly dirt stripping agents, can solve the problems of single function, non-environmental friendliness, narrow application range, etc., and achieve the effect of safe transportation and simple production process

Inactive Publication Date: 2011-05-11
SHIJIAZHUANG HIGH TECH ZONE HUAKE ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can well overcome the current situation that the current cleaning agent ha

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1: Prepare 100 kg of degradable and environment-friendly dirt stripping agent, and the raw materials used are all industrial products. Citric acid 70kg, sulfamic acid 18kg, sodium gluconate 6kg, polyaspartic acid sodium 3kg, thiourea 1.4kg and 2,2-dibromo-3-nitropropionamide 1.6kg. Put the above raw materials into a conical mixer and mix them evenly to get the finished product.

[0035] Corrosion test: Prepare the above-mentioned dirt stripping agent with deionized water to make a 5% aqueous solution of cleaning agent, place the above-mentioned 5% aqueous solution of cleaning agent in a 500ml Erlenmeyer flask, and hang test pieces of different materials in 5 % cleaning agent aqueous solution in the Erlenmeyer flask, and then place the Erlenmeyer flask in a constant temperature water bath at 50°C for a static test of 12 hours. Corrosion rate was measured with reference to the chemical industry standard HG / T2387-2007 "Quality Standards for Chemical Cleaning of...

Embodiment 2

[0042] Embodiment 2: Prepare 100 kg of degradable and environment-friendly dirt stripping agent, and the raw materials used are all industrial products. Citric acid 75kg, sulfamic acid 14kg, sodium gluconate 5kg, polyaspartic acid sodium 2.8kg, thiourea 1.6kg and 2,2-dibromo-3-nitropropionamide 1.6kg. Put the above raw materials into a conical mixer and mix them evenly to get the finished product.

[0043] Corrosion test: Prepare the above-mentioned dirt stripping agent with deionized water to make a 5% aqueous solution of cleaning agent, place the above-mentioned 5% aqueous solution of cleaning agent in a 500ml Erlenmeyer flask, and hang test pieces of different materials in 5 % cleaning agent aqueous solution in the Erlenmeyer flask, and then place the Erlenmeyer flask in a constant temperature water bath at 50°C for a static test of 12 hours. Corrosion rate was measured with reference to the chemical industry standard HG / T2387-2007 "Quality Standards for Chemical Cleaning ...

Embodiment 3

[0050] Embodiment 3: Prepare 100 kg of degradable and environment-friendly dirt stripping agent, and the raw materials used are all industrial products. Citric acid 73kg, sulfamic acid 16kg, sodium gluconate 5kg, polyaspartic acid sodium 2.9kg, thiourea 1.5kg and 2,2-dibromo-3-nitropropionamide 1.6kg. Put the above raw materials into a conical mixer and mix them evenly to get the finished product.

[0051] Corrosion test: Prepare the above-mentioned dirt stripping agent with deionized water to make a 5% aqueous solution of cleaning agent, place the above-mentioned 5% aqueous solution of cleaning agent in a 500ml Erlenmeyer flask, and hang test pieces of different materials in 5 % cleaning agent aqueous solution in the Erlenmeyer flask, and then place the Erlenmeyer flask in a constant temperature water bath at 50°C for a static test of 12 hours. Corrosion rate was measured with reference to the chemical industry standard HG / T2387-2007 "Quality Standards for Chemical Cleaning ...

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Abstract

The invention relates to a degradable environment-friendly dirt remover which is characterized by comprising the following components in percentage by weight: 70-75% of citric acid, 14-18% of sulfamic acid, 5.0-6.0% of sodium gluconate, 2.8-3.0% of sodium polyaspartate, 1.4-1.6% of thiocarbamide and 1.4-1.6% of 2,2-dibromo-3-nitrilopropionamide. In the invention, environment-friendly solid organic acids are used as the main components, and degradable corrosion inhibitor, dispersant, slime remover and chelator are used as auxiliary components, therefore, the degradable environment-friendly dirt remover is applicable to various types of dirt and various metal materials, and has excellent descaling and corrosion-inhibiting properties. The degradation rate of the degradable environment-friendly dirt remover can be higher than 93% after 28 days, thus, the degradable environment-friendly dirt remover belongs to an environment-friendly product. The product can be used for preferably overcoming the defects of single function, narrow applicability and non-environment-friendliness in the current cleaning agent.

Description

technical field [0001] The invention relates to a degradable and environment-friendly dirt stripping agent for removing scale and embroidered scale in a heat exchange system. Background technique [0002] In almost all industrial and civil fields such as chemical industry, pharmaceutical, chemical fertilizer, electric power, printing and dyeing, steel, metallurgy, heating and civil use, after a period of operation of many equipment, a large amount of scale or other types of scale will often form on some heat exchange parts. of dirt. The formation of these dirt will lead to a decrease in the working efficiency of the equipment, shorten the service life of the equipment, increase energy consumption and production costs, and lead to serious consequences such as equipment scrapping, production accidents or environmental pollution, and the economic loss will be huge. Therefore, these devices must be chemically cleaned after a period of operation. So that the equipment can opera...

Claims

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Application Information

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IPC IPC(8): C23G5/036
Inventor 高涛
Owner SHIJIAZHUANG HIGH TECH ZONE HUAKE ENVIRONMENTAL PROTECTION TECH
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