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 ha

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] Example 1

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

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

Example Embodiment

[0038] Example 2

[0039] Prepare 180kg of methacrylic acid stearyl, 40kg of anionic polyacrylamide, 250kg of fatty alcohol polyoxyethylene ether, and 530kg of water. Before preparing agent A, heat the stearyl methacrylate and fatty alcohol polyoxyethylene ether to 75-85. ℃, so that these two medicines are in a good flowing state. When preparing, first add water to a 1 ton special reactor. When heated to 40-50℃, first mix the weighed anionic polyacrylamide white powder slowly and evenly in the water, add the medicine while stirring, and then add The weighed octadecyl methacrylate and fatty alcohol polyoxyethylene ether are sequentially added to the reaction kettle. The temperature is controlled at 75-85℃, and the stirring is stopped after 3 hours. After 1 hour of stabilization, 1000kg of agent A can be prepared, packed in 50kg standard barrels, and stored for later use.

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

Example Embodiment

[0041] Example 3

[0042] The white emulsion wastewater discharged from the ABS chemical production line is 1000kg, and the drugs are added in the order of ABA. The dosages are 7kg for A agent, 5kg for B agent and 3kg for A agent, but the dosing ratio can be adjusted according to the actual conditions of the site wastewater pH value and temperature. . The treatment temperature is the temperature of the wastewater discharged from the ABS production line, generally around 50°C. Mix agent A and white emulsion wastewater first, then mix with agent B, the white emulsion will break and separate in 3-5 seconds, and the ABS raw materials will gather into white flocculent clusters, and then add an appropriate amount For agent A, the water color becomes colorless and transparent, and the entire processing time is only 2-3 minutes. The treated white flocculent raw material group and the clean water enter the separator for separation together, the raw material can be reused, and the water can...

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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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