Corrosion and scale inhibitor specially used for circulating water system in oxygen production plant and preparation method thereof

A corrosion and scale inhibitor, circulating water system technology, applied in chemical instruments and methods, descaling and water softening, water/sludge/sewage treatment, etc., can solve the problems affecting the normal production and production safety of the oxygen generation system The problem of increased pressure difference between the inlet and outlet of the tower, molecular sieve water inflow, etc., achieves the effect of obvious synergistic effect of scale inhibition, good adsorption performance, and good degradability

Inactive Publication Date: 2015-08-05
山东应天环保能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This phenomenon will cause the pressure difference between the inlet and outlet of the air cooling tower to increase, and the molecular sieve to enter the water, etc., if not dealt with, it will affect the normal production and production safety of the oxygen production system

Method used

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  • Corrosion and scale inhibitor specially used for circulating water system in oxygen production plant and preparation method thereof

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Effect test

Embodiment 1

[0046] The corrosion and scale inhibitor for the circulating water system of the oxygen plant in this embodiment includes the following components in mass percentage:

[0047] Methylsulfonate polyepoxysuccinic acid 30%,

[0048] Acrylic acid-methyl acrylate-acrylamide-AMPS copolymer 22%,

[0049] Maleic-Acrylic Copolymer 16%,

[0050] Graphene oxide aqueous dispersion 4%,

[0051] Fatty alcohol polyoxyethylene ether 5%,

[0052] BTA aqueous solution 23%,

[0053] The mass fraction of the BTA aqueous solution is 12%.

[0054] The preparation method of the corrosion and scale inhibitor for the circulating water system of the oxygen plant in this embodiment is as follows:

[0055] Weigh sulfonate methylamino polyepoxysuccinic acid, acrylic acid-methyl acrylate-acrylamide-AMPS copolymer, maleic acid-acrylic acid copolymer and graphene oxide aqueous dispersion in proportion, add them to the container in turn, mix , heated to 90°C, added BTA a...

Embodiment 2

[0057] The corrosion and scale inhibitor for the circulating water system of the oxygen plant in this embodiment includes the following components in mass percentage:

[0058] Sulfonated methylamino polyepoxysuccinic acid 25%,

[0059] Acrylic acid-methyl acrylate-acrylamide-AMPS copolymer 20%,

[0060] Maleic-acrylic acid copolymer 12%,

[0061] Graphene oxide aqueous dispersion 3%,

[0062] Fatty alcohol polyoxyethylene ether 3%,

[0063] BTA aqueous solution 37%,

[0064] The mass fraction of the BTA aqueous solution is 12%.

[0065] The preparation method of the corrosion and scale inhibitor for the circulating water system of the oxygen plant in this embodiment is as follows:

[0066] Weigh sulfonate methylamino polyepoxysuccinic acid, acrylic acid-methyl acrylate-acrylamide-AMPS copolymer, maleic acid-acrylic acid copolymer and graphene oxide aqueous dispersion in proportion, add them to the container in turn, mix , heated to...

Embodiment 3

[0068] The corrosion and scale inhibitor for the circulating water system of the oxygen plant in this embodiment includes the following components in mass percentage:

[0069] Methylsulfonate polyepoxysuccinic acid 40%,

[0070] Acrylic acid-methyl acrylate-acrylamide-AMPS copolymer 22%,

[0071] Maleic-acrylic acid copolymer 15%,

[0072] Graphene oxide aqueous dispersion 4%,

[0073] Fatty alcohol ethoxylates 4%,

[0074] BTA aqueous solution 15%.

[0075] The mass fraction of the BTA aqueous solution is 12%.

[0076] The preparation method of the corrosion and scale inhibitor for the circulating water system of the oxygen plant in this embodiment is as follows:

[0077] Weigh sulfonate methylamino polyepoxysuccinic acid, acrylic acid-methyl acrylate-acrylamide-AMPS copolymer, maleic acid-acrylic acid copolymer and graphene oxide aqueous dispersion in proportion, add them to the container in turn, mix , heated to 65°C, added BTA ...

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Abstract

The invention relates to a corrosion and scale inhibitor specially used for a circulating water system in an oxygen production plant and a preparation method thereof, wherein the corrosion and scale inhibitor includes following components, by mass, 25-40% of sulfonic acid methylamino polyepoxysuccinic acid, 20-30% of an acrylic acid/methyl acrylate/acrylamide/AMPS co-polymer, 12-30% of a maleic acid/acrylic acid co-polymer, 3-5% of an aqueous dispersed liquid of graphene oxide, 3-6% of fatty alcohol-polyoxyethylene ether and 15-40% of a water solution of BTA. The components of the corrosion and scale inhibitor achieve a synergistic effect so that trace-amount removal of pollutants is achieved. The corrosion and scale inhibitor is greatly enhanced in performances after compounding, can achieve the synergistic effect of physical and chemical adsorption on pollutants, can be used in wide pH range and temperature range, is simple in preparation method, is free of emission of waste gas, waste water and solid waste and is good in stability and water-solubility. The main components are biodegradable so that the corrosion and scale inhibitor is toxic-free, phosphorus-free, pollution-free and corrosion-free, is less in addition amount and is environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of water treatment and relates to a corrosion and scale inhibitor, in particular to a special corrosion and scale inhibitor for the circulating water system of an oxygen plant and a preparation method thereof. Background technique [0002] Oxygen system is the core equipment of a steelmaking enterprise, which is related to the safe production and output of the entire enterprise. [0003] At present, groundwater and surface water are used for replenishment of many oxygen-generating circulating water systems. There is no scaling in heat exchange equipment, but serious scaling occurs in air cooling towers, upper water pump filters and refrigerators. This phenomenon will cause the pressure difference between the inlet and outlet of the air cooling tower to increase, and the molecular sieve to enter the water and other hazards. If it is not dealt with, it will affect the normal production and production ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/12C02F5/10
Inventor 张宗峰张忠训杨森
Owner 山东应天环保能源有限公司
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