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Water treatment dirt dispersion agent and preparation method thereof

A scale inhibitor and dispersant, water treatment technology, applied in water/sludge/sewage treatment, chemical instruments and methods, scale removal and water softening, etc. , to achieve the effect of improving the scale inhibition performance

Inactive Publication Date: 2018-12-07
安徽盟拓信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The scale inhibitor is a binary copolymer scale inhibitor, which has good calcium carbonate scale inhibition performance, but does not show other scale inhibition and dispersion properties, and its application range is narrow

Method used

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  • Water treatment dirt dispersion agent and preparation method thereof
  • Water treatment dirt dispersion agent and preparation method thereof
  • Water treatment dirt dispersion agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A water treatment antiscaling and dispersing agent, calculated in parts by weight, comprising the following raw materials:

[0020] 60 parts of maleic anhydride, 26 parts of allylsulfonic acid, 9 parts of aspartic acid, 24 parts of ethyl acrylate, 26 parts of mannose acid, 11 parts of initiator and 170 parts of water. The initiator is a mixture of ammonium persulfate and sodium bisulfite. The mass ratio of ammonium persulfate to the sodium bisulfite is 3:1.

[0021] The preparation method of scale inhibitor dispersant for water treatment comprises the following steps:

[0022] 1) Weighing maleic anhydride, allyl sulfonic acid, ethyl acrylate, mannose acid, initiator and water according to the proportioning ratio, first mixing maleic anhydride with part of the water and then stirring and dissolving to obtain an aqueous solution of maleic anhydride;

[0023] 2) dissolving the initiator in a small portion of water to prepare an aqueous initiator solution;

[0024] 3) Wa...

Embodiment 2

[0026] A water treatment antiscaling and dispersing agent, calculated in parts by weight, comprising the following raw materials:

[0027] 45 parts of maleic anhydride, 20 parts of allylsulfonic acid, 12 parts of aspartic acid, 30 parts of ethyl acrylate, 20 parts of mannose acid, 8 parts of initiator and 150 parts of water. The initiator is a mixture of ammonium persulfate and sodium bisulfite. The mass ratio of ammonium persulfate to the sodium bisulfite is 4:1.

[0028] The preparation method of scale inhibitor dispersant for water treatment comprises the following steps:

[0029] 1) Weighing maleic anhydride, allyl sulfonic acid, ethyl acrylate, mannose acid, initiator and water according to the proportioning ratio, first mixing maleic anhydride with part of the water and then stirring and dissolving to obtain an aqueous solution of maleic anhydride;

[0030] 2) dissolving the initiator in a small portion of water to prepare an aqueous initiator solution;

[0031] 3) Wa...

Embodiment 3

[0033] A water treatment antiscaling and dispersing agent, calculated in parts by weight, comprising the following raw materials:

[0034] 65 parts of maleic anhydride, 30 parts of allylsulfonic acid, 6 parts of aspartic acid, 20 parts of ethyl acrylate, 30 parts of mannose acid, 16 parts of initiator and 200 parts of water. The initiator is a mixture of ammonium persulfate and sodium bisulfite. The mass ratio of ammonium persulfate to the sodium bisulfite is 2:1.

[0035] The preparation method of scale inhibitor dispersant for water treatment comprises the following steps:

[0036] 1) Weigh maleic anhydride, allyl sulfonic acid, aspartic acid, ethyl acrylate, mannose acid, initiator and water according to the ratio for later use, first mix maleic anhydride with part of the water and stir to dissolve to obtain Aqueous solution of maleic anhydride;

[0037] 2) dissolving the initiator in a small portion of water to prepare an aqueous initiator solution;

[0038] 3) Raise t...

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Abstract

The invention provides a water treatment dirt dispersion agent and a preparation method thereof. The dispersion agent is prepared from the following raw materials in parts by weight: 45-65 parts of maleic anhydride, 20-30 parts of allyl sulfonic acid, 6-12 parts of aspartic acid, 20-30 parts of ethyl acrylate, 20-30 parts of mannitic acid, 8-16 parts of an initiator and 150-200 parts of water. Thepreparation method comprises the following steps: 1) preparing a maleic anhydride aqueous solution; 2) preparing an initiator aqueous solution; and 3) heating the maleic anhydride aqueous solution to60-100 DEG C, then adding allyl sulfonic acid, aspartic acid, ethyl acrylate and residual water, uniformly stirring the mixture, dropwise adding the initiator aqueous solution, adding mannitic acid when the 40-60wt% of initiator aqueous solution is dropped into the maleic anhydride aqueous solution, further dropwise adding the rest initiator aqueous solution continuously, stirring the solution while dropwise adding the solution, thermally insulating for 2-3 hours continuously after dropwise addition, and cooling the solution to room temperature. The preparation not only has very high calciumscale inhibition property, but also has very good zinc stabilizing and ferric oxide dispersing abilities.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a scale-inhibiting dispersant for water treatment and a preparation method thereof. Background technique [0002] With the scale of industrial production and the rapid increase of population, water resources are seriously scarce. Circulating cooling water consumption accounts for 60-70% of industrial water consumption, and reasonable saving of circulating cooling water is the most direct way to reduce industrial water consumption. The main way to save circulating cooling water is to increase the recycling rate of circulating cooling water, which not only increases the concentration multiple, but this will bring serious corrosion and scaling problems to the circulating water system, and puts forward higher requirements for the water treatment process. Require. In order to ensure the normal operation of the circulating water system under the conditions of high...

Claims

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Application Information

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IPC IPC(8): C02F5/10C02F5/12
CPCC02F5/12C02F5/10
Inventor 汪鹏郭元
Owner 安徽盟拓信息科技有限公司
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