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Special traceable non-phosphorous corrosion and scale inhibitor for oxygen plant

A technology of corrosion and scale inhibitor, copper corrosion inhibitor, applied in descaling and water softening, water/sludge/sewage treatment, chemical instruments and methods, etc. The problem of chemical content, difficult to quickly analyze the content, etc., to achieve the effect of reducing the dosage of the chemical, excellent biodegradability, and preventing metal corrosion

Inactive Publication Date: 2019-12-10
神美科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the dosage is insufficient, scale adhesion and metal corrosion will occur; if the dosage is excessive, it will cause waste of chemicals
At present, the dosing method of most domestic manufacturers adopts manual dosing and metering pump dosing, which cannot adjust the dosing amount in real time according to the actual concentration of the medicine in the water body
There are many components of phosphorus-free corrosion and scale inhibitors, but the content of each component in circulating water is often only a few ppm. It is difficult to quickly analyze its content in water with existing conventional methods, which brings difficulties to monitoring. To a certain extent, it hinders the popularization and application of phosphorus-free formulations
For example: the Chinese invention patent application with the application number 201510231310.9 discloses a special phosphorus-free corrosion and scale inhibitor for oxygen plants and its preparation method, in which no fluorescent tracer factor is added, and it is impossible to accurately monitor the content of the agent and achieve precise addition. medicine

Method used

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  • Special traceable non-phosphorous corrosion and scale inhibitor for oxygen plant
  • Special traceable non-phosphorous corrosion and scale inhibitor for oxygen plant
  • Special traceable non-phosphorous corrosion and scale inhibitor for oxygen plant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Add 590g of deionized water into the stirred tank and heat up to 90°C, add 40g of benzotriazole, 50g of zinc chloride, 20g of 1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt in sequence, and start the stirrer for 80r / min and stir until the materials are all dissolved, cool down to normal temperature, add 200g carboxymethylthiosuccinic acid, 100g acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer, stir at room temperature for 30min, and divide into packages to obtain Phosphorus-free traceable corrosion and scale inhibitor products for oxygen plants.

Embodiment 2

[0030] Add 340g of deionized water into the stirring tank and heat up to 90°C, then add 60g of mercaptobenzothiazole, 80g of zinc chloride, 20g of 1,3,6,8-pyrene tetrasulfonic acid tetrasodium salt, and start the stirrer 80r / Stir until the material is completely dissolved, cool down to normal temperature, add 300g carboxyethylthiosuccinic acid, 200g acrylic acid-2-acrylamide-2-methylpropanesulfonic acid-hydroxypropyl acrylate terpolymer, stir at room temperature for 30min , After subpackaging, the special phosphorus-free traceable corrosion and scale inhibitor products for oxygen plants can be obtained.

Embodiment 3

[0032] Add 535g of deionized water into the stirring tank and heat up to 90°C, then add 50g of mercaptobenzothiazole, 50g of zinc sulfate, 15g of 1,3,6,8-pyrene tetrasulfonic acid tetrasodium salt, and start the stirrer at 80r / min Stir until the material is completely dissolved, cool down to normal temperature, add 200g carboxymethyl thiosuccinic acid, 150g acrylic acid-acrylic acid ester-sulfonate copolymer TH-613, stir at room temperature for 30min, and then obtain the non- Phosphorus traceable corrosion and scale inhibitor products.

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Abstract

The invention discloses a special traceable non-phosphorous corrosion and scale inhibitor for an oxygen plant. The corrosion and scale inhibitor is prepared from the raw materials in percentage by mass: 10% to 40% of carboxyl alkyl thio-succinic acid, 5% to 20% of sulfonate copolymer, 1% to 6% of a copper corrosion inhibitor, 2% to 8% of zinc salt, 0.5% to 2% of a fluorescent tracer factor and thebalance of deionized water. The corrosion and scale inhibitor is specially used for a cooling water system of the oxygen plant, and has the advantages of no phosphorus, environmental protection, highefficiency, no toxicity, biodegradation, precise control of dosing and the like, and thus wide application prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of industrial water treatment, and in particular relates to a phosphorus-free traceable corrosion and scale inhibitor specially used for an oxygen plant. Background technique [0002] With the large-scale popularization and use of molecular sieves in oxygen generators, the development of the oxygen generator industry has been greatly promoted. [0003] The adsorption capacity of molecular sieves is negatively correlated with temperature, that is, the lower the temperature, the greater the adsorption capacity; the higher the temperature, the smaller the adsorption capacity. Therefore, it is necessary to use low-temperature cooling water to cool the compressed air to the lowest possible temperature before entering the adsorber, so as to provide a reliable guarantee for achieving the maximum adsorption effect, prolong the switching time and reduce the switching loss. [0004] In order to meet the production ne...

Claims

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Application Information

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IPC IPC(8): C02F5/10
CPCC02F5/105
Inventor 庞宏磊王国瑞周继柱冯春晖孙松厚马凯金鑫张志平石伟杰
Owner 神美科技有限公司
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