Silicon scale cleaning agent, and preparation method and application thereof

A technology of cleaning agent and silica scale, which is applied in the field of cleaning agent, can solve the problems of weak cleaning effect of silica scale, impossibility of reverse osmosis membrane soaking, limited acid and alkali resistance of reverse osmosis membrane, etc., to achieve less damage and shorter cleaning time Effect

Active Publication Date: 2021-08-13
威海翔泽新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cleaning agents currently on the market have little cleaning effect on silicon scale.
Although silica scale is soluble in hydrofluoric acid, the acid and alkali resistance of the reverse osmosis membrane is limited, so it is impossible to soak the reverse osmosis membrane in hydrofluoric acid

Method used

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  • Silicon scale cleaning agent, and preparation method and application thereof
  • Silicon scale cleaning agent, and preparation method and application thereof
  • Silicon scale cleaning agent, and preparation method and application thereof

Examples

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preparation example Construction

[0027] The present invention provides a kind of preparation method of the silica dirt cleaning agent described in any one of above-mentioned schemes, comprises the steps:

[0028] 1) mixing dichloramine, alcohol compound and deionized water to obtain a mixed solution;

[0029] 2) Mix the mixed solution with citric acid and a surfactant to obtain a silica scale cleaning agent.

[0030] The invention mixes dichloramine, alcohol compound and deionized water to obtain a mixed solution. In the present invention, the mixing method is preferably stirring. The stirring time is preferably 0.5-1 h, and the stirring speed is preferably 500-1000 r / min.

[0031] After the mixed solution is obtained, the present invention mixes the mixed solution with citric acid and a surfactant to obtain a silica scale cleaning agent. In the present invention, it is preferred to add the citric acid and the surfactant to the mixed solution in a dropwise manner.

[0032] The present invention provides a...

Embodiment 1

[0035] 1. Thoroughly clean the three-neck flask and stirring paddle, and check the system tightness to ensure that the seal is good and the stirring paddle is operating normally.

[0036] 2. Add 20.4g dichloramine, 5.6g polyethylene glycol and 70.3gH to the three-necked flask 2 O, stirred at a speed of 500r / min for 30min to obtain a mixed solution.

[0037] 3. Slowly add 3.0 g of citric acid and 0.7 g of sodium dodecylbenzenesulfonate dropwise into the above mixture, and stir at a speed of 500 r / min for 1 h to obtain a silicon scale cleaning agent.

Embodiment 2

[0039] 1. Thoroughly clean the three-neck flask and stirring paddle, and check the system tightness to ensure that the seal is good and the stirring paddle is operating normally.

[0040] 2. Add 30.0g dichloramine, 7.3g polyethylene glycol and 57.7gH to the three-necked flask 2 O, stirred at a speed of 500r / min for 30min to obtain a mixed solution.

[0041] 3. Slowly add 4.0 g of citric acid and 1.0 g of sodium dodecylbenzenesulfonate dropwise into the above mixture, and stir at a speed of 500 r / min for 1 hour to obtain a silicon scale cleaning agent.

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Abstract

The invention provides a silicon scale cleaning agent, and a preparation method and application thereof, and belongs to the technical field of cleaning agents. According to the technical scheme, the cleaning agent comprises, by weight, 20-30% of dichloramine, 5-10% of an alcohol compound, 2-5% of citric acid, 0.1-1% of a surfactant, and the balance of deionized water. The cleaning agent can be applied to reverse osmosis membrane cleaning.

Description

technical field [0001] The invention belongs to the technical field of cleaning agents, and in particular relates to a silicon scale cleaning agent and its preparation method and application. Background technique [0002] my country's energy structure is dominated by coal, and a major feature of coal chemical industry is its large water consumption, so maintaining the production process of coal chemical industry will inevitably produce a large amount of sewage. However, my country's coal resources and water resources are in a reverse distribution. In areas rich in coal resources, water resources are often very scarce. The reuse of coal chemical wastewater after treatment is a major trend in the future development of the industry. In the coal chemical wastewater treatment process, the double-membrane treatment process is the most common saline wastewater treatment process. Coal chemical industry wastewater contains a large amount of small organic molecules and salt, among wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D65/06
CPCB01D65/02B01D2321/168B01D2321/162Y02W10/37
Inventor 程晓婷张爱国马明安
Owner 威海翔泽新材料科技有限公司
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