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Preparation method for multi-functional high-efficiency flocculating agents

A flocculant, multi-functional technology, applied in the field of preparation of multi-functional high-efficiency flocculant production, can solve the problems of slow dissolution rate, low flocculation and desliming efficiency, and large dosage

Inactive Publication Date: 2009-09-09
徐兴伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, the method of sewage treatment was to use some medium and low molecular weight cationic acrylamide powder products, and the product structure was single, the technology was relatively backward, and the amount of sewage treatment was large, the dissolution rate was slow, the stability was low, and the efficiency of flocculation and desliming was low. and other defects

Method used

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  • Preparation method for multi-functional high-efficiency flocculating agents

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Select 920kg of acrylamide, 100kg of dimethylcyclosiloxane, 160kg of sodium carbonate, 50kg of urea, and 2770kg of deionized water, and weigh them in proportion for use.

Embodiment 2

[0011] Use a centrifugal pump to input 2770kg of deionized water into the batching tank, then gradually dissolve 920kg of acrylamide, 100kg of dimethylcyclosiloxane, 160kg of sodium carbonate, and 50kg of urea into the deionized water to completely dissolve it to form a mixture .

Embodiment 3

[0013] Use a centrifugal pump to transport the mixture to the polymerization kettle, then feed high-purity nitrogen from the bottom of the polymerization kettle, and at the same time add the initiator from the ball valve on the top of the polymerization kettle. After adding the initiator, pass nitrogen for 15 minutes, then stop nitrogen and close the polymerization kettle Top ball valve to allow polymerization.

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Abstract

The invention relates to a preparation method for multi-functional high-efficiency flocculating agents, comprising the following steps: acrylamide, dimethyl cyclosiloxane, sodium carbonate, carbamide and de-ionized water which are selected are prepared according to the proportion, and are input to a batching tank by a centrifugal pump and are dissolved for forming the mixture, and then the mixture is transported to a polymeric kettle by the centrifugal pump, and then high-purity nitrogen is input from the bottom part of the polymeric kettle, evocating agents are added from a ball valve at the top part of the polymeric kettle, nitrogen is input for 15 minutes and then is stopped inputting, and the ball valve is closed at the top part of the polymeric kettle, so as to lead the mixture to be polymerized and to form colloid, 80 DEG.C of hot water is added to a kicked of the polymeric kettle, hydrolysis is carried out to the colloid for four hours, compressed air is used for compressing the material, dispersants are added at the same time, a pelletizer is used for pelleting, and then double-plastid vibration is carried out, a drier is used for frying, and the dried flocculating agents are packaged according to the granularity required by costumers for forming finished products. The preparation method is widely applied to industries such as industrial solid and liquid separation, sewage disposal, paper making, petroleum, petroleum, petroleum, geology, geology, buildings, packing industry, sugar refining, liquor making, etc.

Description

technical field [0001] The present invention relates to a preparation method for the production of a multifunctional high-efficiency flocculant, in particular, it is mainly used in industries such as solid-liquid separation, sewage treatment, papermaking, petroleum, coal, mining and metallurgy, geology, textile, construction, bridges, etc. . Background technique [0002] With the rapid development of my country's economy, urban industrial water and public water use are increasing, and the accompanying sewage is also increasing. Taking Shanghai as an example, according to relevant data, 1.7 million tons of sewage enter a sewage treatment station in Shanghai every day. If the sludge content in the sewage is 1%, there are 17,000 tons of sludge to be treated every day. Then, a province or even the whole country needs to deal with purified sewage every day, and the amount of sludge will be an astonishing number. In the past, the method of sewage treatment was to use some cationic...

Claims

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Application Information

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IPC IPC(8): C02F1/52
Inventor 徐兴伟
Owner 徐兴伟
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