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Environment-friendly type reverse osmosis scale inhibitor and preparation method thereof

A reverse osmosis and antiscalant technology, which is applied in the field of environment-friendly reverse osmosis antiscalant and its preparation, can solve the problems of uneven product performance, non-compliance with environmental protection, secondary pollution of water bodies, etc., and achieve excellent comprehensive performance, Effects that are widely used in a wide range of environments

Active Publication Date: 2019-03-26
北京世博恒业科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there are many kinds of reverse osmosis antiscalants in the field of water treatment technology, the performance of the products is uneven, the antiscaling performance is not high, and the function is single, and it needs to be prepared according to different conditions such as different use environments and different water quality. reverse osmosis antiscalant
Moreover, the existing conventional reverse osmosis antiscalants contain phosphorus, which can easily introduce new pollution sources and cause secondary pollution to water bodies while preventing dirt from agglomerating, which does not meet the requirements of green environmental protection.

Method used

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  • Environment-friendly type reverse osmosis scale inhibitor and preparation method thereof
  • Environment-friendly type reverse osmosis scale inhibitor and preparation method thereof
  • Environment-friendly type reverse osmosis scale inhibitor and preparation method thereof

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preparation example Construction

[0042] In some preferred embodiments, the preparation method of the acrylic copolymer comprises the following steps:

[0043] Take the required molar amount of acrylic acid and N-(2-aminoethyl)acrylamide (CAS: 23918-29-8) and dissolve it with deionized water. Add acrylic copolymer dropwise under stirring at a speed of 1 / min to prepare an aqueous solution of potassium persulfate with a total monomer mass of 1.2wt%, and react for 70 minutes, and then add the required amount of Acrylamide and acrylic acid copolymer prepare a potassium persulfate aqueous solution with a total mass of monomers of 2 wt %, react for 2 hours, and then cool and discharge.

[0044] In some embodiments, the environment-friendly reverse osmosis antiscalant also includes 2 to 5 parts by weight of vinylpyrrolidone-acrylamide copolymer; preferably, vinylpyrrolidone and The molar ratio of acrylamide is (2~3):(0.5~1); more preferably, the molar ratio of vinylpyrrolidone and acrylamide in the vinylpyrrolidone-...

Embodiment 1

[0056] Embodiment 1 provides an environment-friendly reverse osmosis scale inhibitor, said environment-friendly reverse osmosis scale inhibitor, in parts by weight, includes polyepoxysuccinate sodium 20, allyl sodium sulfonate 3, acrylic copolymer Material 5, ethylene glycol bis(3-aminopropyl) ether 2, fatty alcohol polyoxyethylene ether 2.

[0057] The number-average molecular weight of the sodium polyepoxysuccinate is 800, purchased from Shandong Xintai Water Treatment Technology Co., Ltd.; the sodium allyl sulfonate CAS: 2495-39-8; ethylene glycol di(3- Aminopropyl) ether CAS: 2997-01-5; the fatty alcohol polyoxyethylene ether was purchased from Jiangsu Haian Petrochemical Plant (specification O-5, hydroxyl value 115±4, HLB value 8.5-9.5); acrylic acid The preparation method of class copolymer comprises the steps:

[0058] Take the required molar amount of acrylic acid and N-(2-aminoethyl)acrylamide (CAS: 23918-29-8) and dissolve it with deionized water, heat the system to...

Embodiment 2

[0060] Embodiment 2 provides an environment-friendly reverse osmosis scale inhibitor, said environment-friendly reverse osmosis scale inhibitor, in parts by weight, includes polyepoxysuccinate sodium 35, allyl sodium sulfonate 5, acrylic copolymer Material 15, ethylene glycol bis(3-aminopropyl) ether 5, fatty alcohol polyoxyethylene ether 5.

[0061] The number-average molecular weight of the sodium polyepoxysuccinate is 800, purchased from Shandong Xintai Water Treatment Technology Co., Ltd.; the sodium allyl sulfonate CAS: 2495-39-8; ethylene glycol di(3- Aminopropyl) ether CAS: 2997-01-5; the fatty alcohol polyoxyethylene ether was purchased from Jiangsu Haian Petrochemical Plant (specification O-5, hydroxyl value 115±4, HLB value 8.5-9.5); acrylic acid The preparation method of class copolymer comprises the steps:

[0062] Take the required molar amount of acrylic acid and N-(2-aminoethyl)acrylamide (CAS: 23918-29-8) and dissolve it with deionized water, heat the system t...

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Abstract

The invention relates to the technical field of water treatment and in particular relates to an environment-friendly type reverse osmosis scale inhibitor and a preparation method thereof. The environment-friendly type reverse osmosis scale inhibitor comprises the following components in parts by weight: 20 to 35 parts of sodium polyepoxysuccinate, 3 to 5 parts of sodium allylsulfonate, 5 to 15 parts of an acrylic copolymer, 2 to 5 parts of ethylene glycol bis(3-aminopropyl) ether and 2 to 5 parts of fatty alcohol polyoxyethylene ether.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to an environment-friendly reverse osmosis scale inhibitor and a preparation method thereof. Background technique [0002] Reverse osmosis water treatment equipment is to pass raw water through precision filters, granular activated carbon filters, compressed activated carbon filters, etc., and then pressurize through pumps, using a pore size of 1 / 10000μm (equivalent to 1 / 6000 the size of E. 1 / 300 of the reverse osmosis membrane (RO membrane), so that the higher concentration of water into low concentration water, while industrial pollutants, heavy metals, bacteria, viruses and other large quantities of impurities mixed into the water are all isolated, so as to meet drinking regulations Physical and chemical indicators and hygienic standards, the output is clear to pure water, which is the best choice for the human body to replenish high-quality water in time. The purity of ...

Claims

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Application Information

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IPC IPC(8): C02F5/10C02F5/12
CPCC02F5/10C02F5/12C02F2303/04
Inventor 王建军
Owner 北京世博恒业科技有限公司
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