Slow-release solid scale inhibitor as well as preparation method and application thereof

A scale inhibitor and slow-release technology, applied in the field of slow-release solid scale inhibitor and its preparation, can solve the problems of water eutrophication, easy breeding of bacteria, environmental pollution, etc., to improve performance and reduce eutrophication. Risk, effect of simple preparation method

Pending Publication Date: 2022-04-22
QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a slow-release solid scale inhibitor and its preparation method and application, aiming to solve the problems caused by the organic phosphonic acid (salt) solid slow-release scale inhibitor in the prior art due to containing phosphorus element. It is easy to breed bacteria, pollute the water tank and water quality, and cause the problem of eutrophication of the water body after discharge, as well as the problem of environmental pollution caused by the existing carboxylic acid (salt) polymer solid slow-release scale inhibitor due to biodegradation

Method used

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  • Slow-release solid scale inhibitor as well as preparation method and application thereof
  • Slow-release solid scale inhibitor as well as preparation method and application thereof
  • Slow-release solid scale inhibitor as well as preparation method and application thereof

Examples

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preparation example Construction

[0037] A kind of preparation method of sustained release type solid antiscalant of the present invention, comprises the following steps:

[0038] a) Take calcium polyepoxysuccinate and binder, mix calcium polyepoxysuccinate and binder to obtain a mixture;

[0039] b) Take a wetting agent, add it to the mixture obtained in step a), mix evenly, and pass through a 20-30 mesh sieve to obtain a wet material;

[0040] c) drying the wet granules obtained in step b) to obtain dry granules;

[0041] d) Take the lubricant, add it to the dry granules obtained in step c), stir, and press into tablets to obtain a slow-release solid scale inhibitor.

[0042] Optionally, in step a), the particle size of calcium polyepoxysuccinate is 80-120 mesh, and the particle size of the binder is 120-150 mesh.

[0043] Optionally, in the step c), the mesh number of the dried dry particles is 20-40 mesh.

[0044] Optionally, the wetting agent is ethanol or water.

[0045] A kind of preparation method ...

Embodiment 1

[0055] See attached figure 1 And attached image 3 , the preparation method of a kind of sustained release type solid antiscalant of the present invention, comprises the following steps:

[0056] 1) Preparation of calcium polyepoxysuccinate

[0057] Get sodium polyepoxysuccinate, add water, make the aqueous solution of sodium polyepoxysuccinate that mass concentration is 40%; Get calcium chloride, add water, make the calcium chloride aqueous solution of mass concentration 4%; Under the condition of stirring, the calcium chloride aqueous solution is slowly added dropwise into the polyepoxysuccinic acid aqueous solution, and stirred to make the polyepoxysuccinic acid and calcium chloride fully react, and the mass ratio of polyepoxysuccinic acid to calcium chloride is 1 : 0.5, a white solid is generated;

[0058] Add water to rinse, wash off the residual calcium chloride and unreacted polyepoxysuccinic acid on the surface, turn on the vacuum pump, and filter off excess water t...

Embodiment 2

[0068] See attached figure 1 And attached image 3 , the preparation method of a kind of sustained release type solid antiscalant of the present invention, comprises the following steps:

[0069] 1) Preparation of calcium polyepoxysuccinate

[0070] Get sodium polyepoxysuccinate, add water, make the aqueous solution of sodium polyepoxysuccinate that mass concentration is 40%; Get calcium chloride, add water, make the calcium chloride aqueous solution of mass concentration 4%; Under the condition of stirring, the calcium chloride aqueous solution is slowly added dropwise into the polyepoxysuccinic acid aqueous solution, fully stirred evenly, so that the polyepoxysuccinic acid and calcium chloride fully react, the mass ratio of polyepoxysuccinic acid to calcium chloride The ratio is 1:0.2, and a white solid is generated;

[0071]Add water to rinse, wash off the residual calcium chloride and unreacted polyepoxysuccinic acid on the surface, turn on the vacuum pump, and filter o...

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Abstract

The invention provides a slow-release solid scale inhibitor as well as a preparation method and application thereof. The calcium polyepoxysuccinate comprises the following components: 80-94% of calcium polyepoxysuccinate, 5-19% of a binder and 1-2% of a lubricant. Or, the calcium polyepoxysuccinate comprises the following components: 50-79% of calcium polyepoxysuccinate, 5-19% of soluble alginate, 15-30% of a soluble curing agent and 1-2% of a lubricant. The invention also provides a preparation method of the slow-release solid scale inhibitor, and the preparation method can be a wet tabletting method or a microcapsule method. The slow-release solid scale inhibitor is a phosphorus-free and biodegradable environment-friendly scale inhibitor, is resistant to water flow scouring, has slow release performance, has good scale inhibition and dispersion performance on calcium carbonate, calcium sulfate, barium sulfate, silicon scale and the like in water due to the slow release amount, and is long in scale inhibition time and resistant to high temperature. When the scale inhibitor is used in the water heater, the scale inhibition performance of the water heater is improved, the scale inhibitor can be directly discharged, and the eutrophication risk in a water body is reduced.

Description

technical field [0001] The invention relates to the technical field of scale inhibitors, in particular to a slow-release solid scale inhibitor and its preparation method and application. Background technique [0002] The scale deposition generated during the use of the water heater will lead to the corrosion of the vacuum tube slag tube and the liner under the scale, the blockage of the pipeline, and the sediment on the surface of the heating tube, which will affect the water flow rate and heating efficiency, and even cause the heating tube to burst. Therefore, antiscalants need to be added to prevent scale formation. [0003] At present, the scale inhibitor products used in the domestic market are mainly water-soluble liquid products, which are widely used in the scale inhibition and dispersion treatment of industrial water, such as: circulating cooling water system, thermal boiler system, oilfield water injection system, reverse osmosis treatment system, etc. It also has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/10F24H9/00F24H9/40
CPCC02F5/10F24H9/0005C02F2307/12
Inventor 管江勇张冰如盛保敬孙强姚菲菲李风亭赵小勇张立臣雒潇
Owner QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER
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