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Composite emulsion breaking scavenging agnet and preparation method thereof

A compound demulsification and purification agent technology, applied in chemical instruments and methods, water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve problems such as waste of raw materials, no obvious effect, environmental pollution, etc., to achieve Cost saving, good economic benefits, and the effect of eliminating environmental pollution

Inactive Publication Date: 2008-03-12
马冬兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Over the years, in order to treat ABS wastewater, membrane technology separation, filtration, and flocculant and water purifier chemical treatment methods have been used at home and abroad, but these methods have not achieved obvious results
The white emulsion wastewater containing polymer materials is discharged into the river water, which not only wastes raw materials, but also causes serious environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Prepare 160 kg of octadecyl methacrylate, 20 kg of anionic polyacrylamide, 220 kg of fatty alcohol polyoxyethylene ether, and 600 kg of water. Before preparing agent A, heat octadecyl methacrylate and fatty alcohol polyoxyethylene ether to 75-85 ℃, so that the two agents are in a good flow state. When preparing, first add water to a 1-ton special reaction kettle, and when it is heated to 40-50°C, first slowly and evenly mix the weighed anionic polyacrylamide white powder in the water, add the medicine while stirring, and then put The weighted octadecyl methacrylate and fatty alcohol polyoxyethylene ether are added to the reaction kettle in sequence. The temperature is controlled at 75-85°C, the stirring is stopped after 3 hours, and 1000kg of A agent can be prepared after 1 hour of stabilization, which is divided into 50kg standard barrels and stored for later use;

[0037] Then prepare 20kg of cationic polyacrylamide, 360kg of polyferric sulfate, 200kg of polyaluminum...

Embodiment 2

[0039] Prepare 180 kg of octadecyl methacrylate, 40 kg of anionic polyacrylamide, 250 kg of fatty alcohol polyoxyethylene ether, and 530 kg of water. Before preparing agent A, heat octadecyl methacrylate and fatty alcohol polyoxyethylene ether to 75-85 ℃, so that the two agents are in a good flow state. When preparing, first add water to a 1-ton special reaction kettle, and when it is heated to 40-50°C, first slowly and evenly mix the weighed anionic polyacrylamide white powder in the water, add the medicine while stirring, and then put The weighted octadecyl methacrylate and fatty alcohol polyoxyethylene ether are added to the reaction kettle in sequence. The temperature is controlled at 75-85°C, stirring is stopped after 3 hours, and 1000kg of A agent can be prepared after 1 hour of stabilization, which is divided into 50kg standard barrels and stored for later use.

[0040]Then prepare 40kg of cationic polyacrylamide, 380kg of polyferric sulfate, 220kg of polyaluminum chlo...

Embodiment 3

[0042] The white emulsion wastewater discharged from the ABS chemical production line is 1000kg. Dosing in the order of A-B-A, the dosage is A agent 7kg, B agent 5kg and A agent 3kg, but the dosing ratio can be adjusted according to the actual situation such as the pH value and temperature of the wastewater on site. . The treatment temperature is the temperature of the wastewater discharged from the ABS production line, generally around 50°C. First mix agent A and white emulsion wastewater, and then mix it with agent B. The white emulsion will achieve demulsification and separation in 3-5 seconds, and make the ABS raw materials gather into white flocs, and then add an appropriate amount The water color becomes colorless and transparent, and the whole treatment time is only 2-3 minutes. The treated white floc raw material and clear water enter the separator for separation, the raw material can be reused, and the water can be discharged or recycled up to the standard.

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PUM

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Abstract

The present invention relates to a compound emulsion clarifier consisting of two clarifiers of A and B applied to waste water purification treatment of ABS chemical industry production line. Calculated by weight percentage, the clarifier of A consists of 16 to 18 percent of octadecyl methacrylate, 2 to 4 percent of APAM, 22 to 25 percent of AEO and water. The clarifier of B consists of 2 to 4 percent of CPAM, 36 to 38 percent of PFS, 20 to 22 percent of polyaluminium chloride and water. The clarifiers of A and B are respectively deposited and matchedly utilized to carry through emulsion separation on the white emulsion waste water discharged by the ABS chemical industry production line to lead the ABS material to be separated out as white floccule to realize recycling of waste materials; the water discharged is colorless transparent rinsing and can be recycled or discharged with meeting the requirements of national standards. The application of the present invention can save the cost of chemical plants and eliminate the environment pollution of the water discharged by chemical plants, thereby acquiring good economic effect, social effect and environment protection effect. The present invention is suitable for popularization and application.

Description

technical field [0001] The invention relates to a compound demulsification purifying agent used for wastewater purification in chemical production and a preparation method thereof, belonging to the field of fine chemicals. Background technique [0002] In the production process of ABS (Acrylonitrile Butadiene Styrene, a terpolymer of acrylonitrile, butadiene and styrene, where A represents acrylonitrile, B represents butadiene, and S represents styrene), in order to maintain normal production, it is necessary A large amount of water, which is emulsified with a certain amount of polymer materials, forms a white emulsion when discharged, which contains about 1-5% of ABS raw materials. Over the years, in order to treat ABS wastewater, membrane technology separation method, filtration method, flocculant and water purifier chemical treatment method have been applied at home and abroad, but these methods have not obtained obvious effect. These white emulsion wastewater containing...

Claims

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Application Information

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IPC IPC(8): C02F1/00C02F1/52
Inventor 马冬兰于雷于丽华
Owner 马冬兰
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