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Technology for preparing quick-setting agent by utilizing industrial waste phosphoric acid

A waste phosphoric acid and quick-setting agent technology, which is applied in the field of hazardous waste recycling and quick-setting agent preparation, can solve the problems of secondary pollution, high energy consumption, complicated process, etc., reduce treatment costs, improve quick-setting performance, shorten The effect of clotting time

Inactive Publication Date: 2018-09-04
萧县沃德化工科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used industrial waste phosphoric acid treatment methods are extraction, separation and other methods, and the residue is then landfilled. This method is complicated in process, consumes a lot of energy, and continuous landfilling may also cause secondary pollution.

Method used

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  • Technology for preparing quick-setting agent by utilizing industrial waste phosphoric acid

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The invention provides a kind of technology that utilizes industrial waste phosphoric acid to prepare quick-setting agent, and its technology comprises the following steps:

[0020] (1) Add 25 parts of deionized water into the four-necked flask, heat the four-necked flask with an alcohol lamp until the temperature of the liquid inside the flask is 40°C; add 50 parts of aluminum hydroxide to the four-necked flask, and stir the mixture until Aluminum hydroxide is evenly dispersed;

[0021] (2) Add 80 parts of industrial waste phosphoric acid and 5 parts of boric acid successively to the mixed solution in step (1), heat the temperature of the mixed solution in the four-necked flask to 90° C., and keep the constant temperature for 3 hours;

[0022] (3) Add 20 parts of hydrofluoric acid to the mixed solution in step (2), then keep the temperature of the mixed liquid inside the four-necked flask at 90° C., and keep it at a constant temperature for 0.5 h;

[0023] (4) Add 25 ...

Embodiment 2

[0027] The invention provides a kind of technology that utilizes industrial waste phosphoric acid to prepare quick-setting agent, and its technology comprises the following steps:

[0028] (1) Add 40 parts of deionized water into the four-necked flask, heat the four-necked flask with an alcohol lamp until the temperature of the liquid inside the flask is 40°C; add 80 parts of aluminum hydroxide to the four-necked flask, and stir the mixture until Aluminum hydroxide is evenly dispersed;

[0029] (2) Add 94 parts of industrial waste phosphoric acid and 7 parts of boric acid successively to the mixed solution in step (1), heat the temperature of the mixed solution in the four-necked flask to 95° C., and keep the constant temperature for 5 hours;

[0030] (3) Add 25 parts of hydrofluoric acid to the mixed solution in step (2), then keep the temperature of the mixed liquid inside the four-necked flask at 90° C., and keep it at a constant temperature for 1 hour;

[0031] (4) Add 40...

Embodiment 3

[0035] The invention provides a kind of technology that utilizes industrial waste phosphoric acid to prepare quick-setting agent, and its technology comprises the following steps:

[0036] (1) Add 55 parts of deionized water into the four-necked flask, heat the four-necked flask with an alcohol lamp until the temperature of the liquid inside the flask is 40°C; add 110 parts of aluminum hydroxide to the four-necked flask, and stir the mixture until Aluminum hydroxide is evenly dispersed;

[0037] (2) Add 108 parts of industrial waste phosphoric acid and 9 parts of boric acid successively to the mixed solution in step (1), heat the temperature of the mixed solution in the four-necked flask to 91° C., and keep the constant temperature for 4 hours;

[0038] (3) Add 30 parts of hydrofluoric acid to the mixed solution in step (2), then keep the temperature of the mixed liquid inside the four-necked flask at 90° C., and keep it at a constant temperature for 0.6 h;

[0039] (4) Add 5...

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PUM

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Abstract

The invention discloses a technology for preparing a quick-setting agent by utilizing industrial waste phosphoric acid. The technology adopts the following raw materials in parts by weight: 50-200 parts of deionized water, 50-200 parts of aluminum hydroxide, 80-150 parts of industrial waste phosphoric acid, 20-50 parts of hydrofluoric acid, 5-15 parts of boric acid, 15-50 parts of triethanolamine,and 200-350 parts of aluminum sulfate hydrate. The technology directly utilizes waste phosphoric acid without any physical or chemical treatment, belongs to the hazardous wastes reuse, not only accords with the country's concept of promoting green production conformed with, but also reduces the cost of waste liquid disposal of enterprises, can also realize recycling of wastes and generate incomefor the enterprises to get three results with one action, and is suitable for promotion.

Description

technical field [0001] The invention relates to the technical field of hazardous waste recycling and quick-setting agent preparation, in particular to a process for preparing quick-setting agent by using industrial waste phosphoric acid. Background technique [0002] Industrial waste phosphoric acid is mainly waste phosphoric acid produced in the process of phosphoric acid phosphating, such as phosphoric acid washing solution after cleaning glass plates in electronics factories, because it contains high phosphoric acid content and cannot be discharged directly. Moreover, phosphate rock is becoming more and more scarce, so the recycling of phosphorus-containing waste is particularly important. At present, the commonly used industrial waste phosphoric acid treatment methods are extraction, separation and other methods, and the residue is then landfilled. This method is complicated, consumes a lot of energy, and continuous landfilling may also bring secondary pollution. Conte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/12C04B103/12
CPCC04B40/0046C04B2103/12C04B22/16C04B22/0013C04B22/126C04B22/148C04B24/122
Inventor 董翠平马丽涛宋宝乔琼琼彭城
Owner 萧县沃德化工科技有限公司
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