Fluorescent tracing non-phosphate polyether multifunctional water treatment agent and preparation method of water treatment agent

Abstract

The invention relates to a fluorescent tracing non-phosphate polyether multifunctional water treatment agent (APEGYG), which is prepared from polyether monomers, monomers containing vinyl unsaturated double bonds and fluorescent monomers containing unsaturated double bonds through free radical copolymerization. The APEGYG has a structure formula shown as the accompanying drawing, wherein A is a repeated structure unit after polymerization of the monomers containing vinyl unsaturated double bonds, B is a repeated structure unit after polymerization of the fluorescent monomers containing unsaturated double bonds, G is -CH2-O- or -O-, the polymerization degree x is 5 to 5000, the polymerization degree y is 5 to 500, the polymerization degree z is 5 to 5000, and the repeated unit m is 5 to 100.

Description

technical field [0001] The invention relates to a fluorescent tracer phosphorus-free polyether multifunctional water treatment agent (APEGYG) and a preparation method thereof, which is a phosphorus-free, nitrogen-free, biodegradable and on-line detection agent suitable for industrial circulating cooling water systems. The invention relates to a multifunctional water treatment agent for automatic administration, which is used for the dispersed treatment of corrosion and scale inhibition of water quality, and belongs to the preparation and application technology of the water treatment agent in the technical field of water treatment. Background technique [0002] In industrial circulating cooling water systems, it is generally necessary to add water treatment chemicals to achieve the effect of scale inhibition, dispersion and corrosion inhibition. The traditional scale and disperse corrosion inhibitors with better effect are mostly phosphates, such as hydroxyethylidene diphosph...

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Problems solved by technology

The traditional scale and disperse corrosion inhibitors with better effect are mostly phosphates, such as hydroxyethylidene diphosphonic acid (HEDP), polyol phosphate (PAPE), aminotrimethylene phosphonic acid (ATMP), 2- Hydroxyphosphorylacetic acid (HPAA), 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTC), ethylenediaminetetramethylenephosphonic acid (EDTMP), and polyaminopolyethertetramethylenephosphonic acid (PAPEMP), etc., although this kind of water treatment agent has excellent performance in inhibiting calcium carbonate deposition and good corrosion inhibition performance, but due to the relatively small molecular weight (<800) of HEDP, PBTC, HPAA, etc., the functional groups are also Less, poor inhibition and dispersion of calcium phosphate scale and iron oxide particles, poor stability to zinc salts

These phosphate water treatment chemicals are also easily hydrolyzed or oxidized and decomposed by the biocide existing in the system to generate PO43- ions, which can be used in the environment containing high calcium and high iron Calcium organophosphate and iron organophosphate, which are difficult to dissolve in water, are easily formed in water quality, which affects its application

Secondly, phosphate water treatment agents can act as nutrients for bacteria and algae in water because of their phosphorus content, which can easily cause eutrophication of water sources and cause water pollution.

At present, the widespread use of a large number of phosphorus and nitrogen-containing water treatment agents has caused environmental pollution such as the proliferation of bacteria and algae, eutrophication of water bodies, etc. Therefore, it is imperative to develop phosphorus-free green water treatment agents

[0003] Now, most of the non-phosphorus water treatment agents are non-phosphorus carboxylic acid water treatment agents such as polyacrylic acid, polyepoxysuccinic acid calcium phosphate barrier and the ability to disperse Fe(Ⅲ) Not ideal, and it is easy to produce calcium gel under high calcium conditions, and the calcium tolerance is low; in addition, the corrosion inhibition performance of this type of water treatment agent is average

In 2002, Betz Company of the United States launched a new generation of acrylic acid / allyloxy polyethoxy sulfonate phosphorus-free copolymer (AA / APES). body, AA / APES has a higher tolerance to hardness, suspended matter, temperature, and can withstand the interference of iron ions, and its resistance to Ca3(PO4)2The efficiency is higher. In 2003, Betz developed the trimer of APES to further optimize product performance and reduce production costs. However, this type of water treatment agent contains no phosphorus but still contains water-rich Nutrient element nitrogen

In addition, a major disadvantage of phosphorus-free water treatment agents is that they do not contain phosphorus in their structure, so they cannot be detected by the commonly used ammonium molybdate spectrophotometric method, so that online detection and automatic administration of the concentration of water treatment agents cannot be performed.

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