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Recyclable water purifying agent preparation method

A purification agent and water quality technology, applied in the field of preparation of recyclable water purification agent, can solve the problems of low adsorption capacity, low efficiency, poor adsorption effect, etc., and achieve the effect of strong adsorption and increased cross-linking degree

Active Publication Date: 2016-07-27
南京兰庭绿色建筑技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for preparing a recyclable water purifier to solve the technical problems of poor adsorption effect, low adsorption capacity, long purification time and low efficiency of the sewage purifier in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of recyclable water purifying agent, comprising the following steps:

[0028] Step 1: Mix lignin and phenol evenly in a mass ratio of 1.5:20, stir and react at 175°C for 50 minutes, add 10wt% sodium hydroxide solution whose mass is 1.5 times that of phenol dropwise at a constant speed during the reaction, and adjust the pH of the reaction solution after the reaction Adjust the value to neutral, and lower the temperature to 55°C, add formaldehyde 2.5 times the mass of phenol, and glycerin 0.3 times the mass of phenol to the reaction solution, and finally stir and react under heat preservation conditions for 60 minutes to prepare polyether polyol.

[0029] Polyether polyol, isocyanate, sodium dodecylbenzene sulfonate, carboxymethyl cellulose, dibutyltin dilaurate, aluminum hydroxide and ferroferric oxide magnetic powder in a mass ratio of 1:1.4:0.02:0.05:0.02 :0.2:0.02 Mix evenly, stir and foam at 35°C to obtain immature foam.

[0030] Step 2: Mix bu...

Embodiment 2

[0036] A preparation method of recyclable water purifying agent, comprising the following steps:

[0037] Step 1: Mix lignin and phenol evenly at a mass ratio of 1:15, and stir and react at 170°C for 60 minutes. During the reaction, add 10 wt% sodium hydroxide solution whose mass is 1.5 times that of phenol dropwise at a constant speed, and adjust the pH of the reaction solution after the reaction. Adjust the value to neutral, and lower the temperature to 50°C, add formaldehyde twice the mass of phenol, glycerol 0.15 times the mass of phenol, and sorbitol 0.1 times the mass of phenol to the reaction solution, and finally stir and react under heat preservation conditions for 40 minutes , to obtain polyether polyols.

[0038] Polyether polyol, isocyanate, sodium dodecylbenzene sulfonate, carboxymethyl cellulose, dibutyltin dilaurate, aluminum hydroxide and ferroferric oxide magnetic powder in a mass ratio of 0.8:1.2:0.01:0.04:0.01 :0.1:0.01 Mix evenly, stir and foam at 30°C to ...

Embodiment 3

[0045] A preparation method of recyclable water purifying agent, comprising the following steps:

[0046] Step 1: Mix lignin and phenol evenly at a mass ratio of 2:25, stir and react at 180°C for 40 minutes, add dropwise a 10wt% sodium hydroxide solution whose mass is 1.5 times that of phenol at a constant speed during the reaction, and adjust the pH of the reaction solution after the reaction The value was adjusted to neutral, and the temperature was lowered to 60°C. Formaldehyde with a mass 3 times that of phenol and sorbitol with a mass 0.35 times that of phenol were added to the reaction solution, and finally stirred and reacted for 80 minutes under heat preservation conditions to obtain polyether polyol.

[0047] Polyether polyol, isocyanate, sodium dodecylbenzene sulfonate, carboxymethyl cellulose, dibutyltin dilaurate, aluminum hydroxide and ferroferric oxide magnetic powder in a mass ratio of 1.2:1.6:0.03:0.06:0.03 :0.3:0.03 Mix evenly, stir and foam at 40°C to obtain ...

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Abstract

The invention provides a recyclable water purifying agent preparation method. The method includes: step 1, mixing polyether polyol, isocyanate, sodium dodecyl benzene sulfonate, carboxymethyl cellulose, dibutyltin dilaurate, aluminium hydroxide and ferroferric oxide magnetic powder to obtain a foam material; step 2, mixing butyl titanate, sepiolite powder, halloysite nanotubes, nanocrystalline cellulose, polyvinylpyrrolidone, ferroferric oxide magnetic powder and absolute ethyl alcohol to obtain a mixed liquid A; mixing a hydrochloric acid solution, absolute ethyl alcohol and water to obtain a mixed liquid B; dropwise adding the mixed liquid B into the mixed liquid A, and reacting to obtain sol; subjecting the sol to silver loading treatment; step 3, mixing the foam material, the silver-loaded sol and phenoxy resin to obtain a mixed foam material; ageing and cleaning to obtain wet sponge; step 4, drying and grinding the wet sponge to obtain a recyclable water purifying agent. The recyclable water purifying agent prepared according to the method is effective in adsorption, high in adsorption capacity, high in efficiency and recyclability.

Description

technical field [0001] The invention relates to the technical field of water purification, in particular to a preparation method of a recyclable water purification agent. Background technique [0002] In recent decades, my country's industry has developed rapidly. However, in the past, factories and enterprises in our country did not pay attention to environmental protection, and it was common to discharge unpurified sewage directly. Decades of environmental damage have led to serious deterioration of the water quality of most rivers, lakes, and seas in my country. The water bodies of these natural water systems contain a large amount of particulate impurities, oil-based pollutants, heavy metals, and eutrophic substances. [0003] At present, my country's treatment of natural water sources generally includes artificial salvage, ecological treatment, and purifier purification. Manual salvage is time-consuming and laborious, the ecological management cycle is long, the effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/28B01J20/26B01J20/30C02F1/28C02F1/48C02F1/30C02F1/50C02F101/30C02F101/20
CPCB01J20/0211B01J20/10B01J20/262B01J20/28009B01J2220/46C02F1/288C02F1/30C02F1/488C02F1/50C02F2101/20C02F2101/30C02F2303/04C02F2305/10
Inventor 不公告发明人
Owner 南京兰庭绿色建筑技术有限公司
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