Calcium sulfate scale cleaning agent and preparation method thereof

A calcium sulfate scale and cleaning agent technology, applied in detergent compositions, chemical instruments and methods, non-surface active detergent compositions, etc., can solve incomplete cleaning, difficulty in heating and cleaning circulation loops, low scale removal rate, etc. problems, to achieve the effect of convenient cleaning operation, high removal rate and simple preparation

Inactive Publication Date: 2013-08-14
太仓市宝马环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional cleaning method is to carry out the transformation of alkaline boiling first and pickling step by step. The main problem is that the descaling rate is low and the cleaning is not thorough; When the device is being cleaned, it is difficult to heat and

Method used

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  • Calcium sulfate scale cleaning agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] In 300g of water, add 100g of sodium humate, 50g of sodium hydroxyethylene diphosphonate, 5g of ethylenediaminetetraacetic acid, 5g of alkylphenol polyoxyethylene ether, and 5g of chlorinated-1,3-dialkylpyridine, Stirring was continued at 20°C for 3 hours until complete dissolution. Cooling and discharging, the calcium sulfate scale cleaning agent is obtained.

Embodiment 2

[0015] In 300kg of water, add sodium acetate 170kg, sodium hydroxyethylene diphosphonate 40kg, sodium ethylenediamine tetramethylene phosphonate 60kg, hexamethylenetetramine 8kg, polyethylene glycol 6kg, methacryloyl oxide Ethylammonium chloride 8kg was continuously stirred at 50°C for 3 hours until it was completely dissolved. Cooling and discharging, the calcium sulfate scale cleaning agent is obtained.

Embodiment 3

[0017] In 300kg of water, sequentially add 90kg of sodium sulfamate, 70kg of sodium glycolate, 60kg of sodium polyaspartate, 5.6kg of ammonium citrate, 6kg of polyethylene glycol, and 8kg of dodecyldimethylbenzyl ammonium chloride , and continued stirring at 30 °C for 3 hours until complete dissolution. Cooling and discharging, the calcium sulfate scale cleaning agent is obtained.

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Abstract

The invention provides a calcium sulfate scale cleaning agent. Based on the total weight of the calcium sulfate scale cleaning agent, the calcium sulfate scale cleaning agent is prepared by mixing the following components in percentage by weight: 20-30% of main cleaning agent, 10-20% of auxiliary cleaning agent, 1-2.5% of buffering agent, 1-2.5% of penetrant, 1-1.5% of stripping agent and 43.5-67% of water, wherein the main cleaning agent is one or some of sodium acetate, sodium humate, sodium nitrilotriacetate, sodium glycolate, sodium polyphosphate and sodium sulfamate. The calcium sulfate scale cleaning agent provided by the invention is high in removal rate, safe and environment-friendly, and has excellent application prospects.

Description

technical field [0001] The invention relates to the technical field of industrial cleaning agents, and more particularly relates to a calcium sulfate scale cleaning agent especially suitable for cleaning GGH heat exchanger pipes and a preparation method thereof. Background technique [0002] Industrial cleaning is currently a major problem in the cleaning industry at home and abroad. It mainly involves the dissolution and removal of various insoluble scales such as calcium sulfate, calcium silicate, and iron oxide. Among these insoluble scales, calcium sulfate has the largest amount and is the most Difficult to deal with. The traditional cleaning method is to carry out the transformation of alkaline boiling first and pickling step by step. The main problem is that the descaling rate is low and the cleaning is not thorough; When the device is being cleaned, it is difficult to heat and form a cleaning cycle. This equipment is only suitable for spray cleaning. In special cases...

Claims

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Application Information

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IPC IPC(8): C11D7/60C11D7/36C11D7/32
Inventor 马志刚陈奠宇
Owner 太仓市宝马环境工程有限公司
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