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Acrylic acid/polymethyl methacrylate/acrylonitrile copolymer water antisludging agent and preparing method thereof

A polymethyl methacrylate, acrylonitrile technology, used in water/sludge/sewage treatment, chemical instruments and methods, descaling and water softening, etc.

Inactive Publication Date: 2016-04-20
HUBEI DIDA HEAT ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the current traditional acrylic copolymers only have a higher scale inhibition rate in water with lower hardness (total hardness ≤ 700mg / L)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The acrylic acid / polymethyl methacrylate / acrylonitrile copolymer water scale inhibitor and the preparation method thereof of the present invention will be further described in detail in conjunction with specific examples below.

[0021] The components of the acrylic acid / polymethyl methacrylate / acrylonitrile copolymer water scale inhibitor of each embodiment of the present invention are shown in Table 1.

[0022] The preparation method of the acrylic acid / polymethyl methacrylate / acrylonitrile copolymer of above-mentioned embodiment, comprises the following steps successively:

[0023] 1) Take acrylic acid, polymethyl methacrylate, and acrylonitrile according to the design ratio, and mix them evenly in a mixer. When mixing, the speed of the mixer is 1200-1500rpm, and mix for 5-10 minutes. ;

[0024] 2) The mixed material is melted, mixed, extruded and granulated through the eight-zone twin-screw extruder, and the temperature of the twin-screw extruder is controlled as f...

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Abstract

The invention discloses a acrylic acid / polymethyl methacrylate / acrylonitrile copolymer water antisludging agent and a preparing method thereof. The antisludging agent is prepared from the components in percentage by weight: 50-70% of acrylic acid, 20-45% of polymethyl methacrylate and 5-25% of acrylonitrile. The preparing method comprises the following steps: (1) weighing the acrylic acid, polymethyl methacrylate and acrylonitrile proportionally, and uniformly mixing in a mixing machine; (2) performing eight-region melting and extruding on the mixed material by a double-screw extruder for pelleting. The antisludging agent has a better antisludging effect for high hardness hot water, and meanwhile, the preparing method is simple in process and low in cost.

Description

technical field [0001] The invention belongs to the technical field of antiscaling treatment of high-hardness geothermal water, and specifically refers to an acrylic acid / polymethyl methacrylate / acrylonitrile copolymer water antiscaling agent and a preparation method thereof. Background technique [0002] Geothermal energy belongs to the new energy type identified in China's Renewable Energy Law (2006). The existing conventional energy sources—coal, oil and natural gas, have limited resources and will cause environmental pollution when used. The application of geothermal energy provides an effective way to solve the above two dilemmas of existing energy sources for energy saving and emission reduction. However, scaling of geothermal water in geothermal energy applications has become a difficult problem that must be faced. For this reason, anti-scaling treatment of geothermal water has become a hot research direction in technology. [0003] Antiscalant treatment of geother...

Claims

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Application Information

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IPC IPC(8): C08F265/04C08F220/06C08F220/44C02F5/12
CPCC08F265/04C02F5/12C08F220/06
Inventor 林峰余贵春向世民
Owner HUBEI DIDA HEAT ENERGY TECH CO LTD
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