Multifunctional water-treating antisludging agent of boiler

A boiler water, multi-functional technology, applied in the field of boiler water treatment scale inhibitor and water treatment agent, can solve the problems of low tolerance, compounding, unsatisfactory compatibility, and reduced scale inhibition ability.

Inactive Publication Date: 2006-11-01
SHANGHAI WANSEN WATER TREATMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these antiscalants can solve the scaling problem of industrial water treatment to a certain extent, there are still many defects, such as their low tolerance to calcium in water, and the ability to inhibit scale in iron-containing and oil-containing water. Compounding and compatibility with other water treatment corrosion and scale inhibitors are unsatisfactory, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The preparation of multifunctional boiler water treatment scale inhibitor of the present invention:

[0023] 1-Aminopyrrolidine is a kind of organic substance that is difficult to dissolve, so firstly, fully stir and mix 1-aminopyrrolidine in deionized water, and also add an appropriate organic solvent that promotes the dissolution of organic substances; then add 1- Add sodium dihydrogen phosphate, sodium sulfite, and cyclohexylamine in sequence to the deionized water of aminopyrrolidine, mix thoroughly, filter to remove impurities, and set aside.

[0024] When in use, various conditions of the boiler to be treated can be detected first, such as pH, hardness, scale composition, etc. Then determine the dosage and treatment time of the multifunctional boiler water treatment scale inhibitor of the present invention.

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Abstract

A multifunctional boiler water treatment scale inhibitor consists of 1-amino-pyrrolidine, monometallic sodium orthophosphate, sodium sulfite and ethylenimine and deionized water. It has wide pH range and better dispersion ability, it can control scale effectively under the conditions of high-hardness, high-iron content, high-base content, high-pH and high-temperature.

Description

technical field [0001] The invention belongs to the fields of chemical industry and water treatment, and relates to a water treatment agent. Furthermore, the invention relates to a multifunctional scale inhibitor for boiler water treatment. Background technique [0002] After long-term use of equipment such as boilers, scaling and corrosion will inevitably occur. Scaling control is a major mission of industrial water treatment. Scaling control is to control the calcium carbonate scale produced due to "instability" in the process of industrial water operation, and the barium sulfate and strontium sulfate scale produced due to "incompatibility". Since polyphosphate, phosphate and zinc salt are used as the Calcium phosphate or zinc phosphate scale formed by the combination of corrosion inhibitor and calcium in water, as well as iron oxide scale due to corrosion, sedimentation and scaling caused by the introduction of sediment, and microbial proliferation caused by microbial ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/10C02F5/12C02F5/14
Inventor 沈志昌
Owner SHANGHAI WANSEN WATER TREATMENT CO LTD
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