CN111620987A - Environment-friendly polyacrylamide modified water treatment agent and preparation method thereof - Google Patents

Environment-friendly polyacrylamide modified water treatment agent and preparation method thereof Download PDF

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Publication number
CN111620987A
CN111620987A CN202010525087.XA CN202010525087A CN111620987A CN 111620987 A CN111620987 A CN 111620987A CN 202010525087 A CN202010525087 A CN 202010525087A CN 111620987 A CN111620987 A CN 111620987A
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parts
temperature
treatment agent
water treatment
friendly
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王凯
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
    • C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/10—Photocatalysts
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
    • C08K2003/3045—Sulfates
    • C08K2003/3081—Aluminum sulfate

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Toxicology (AREA)
  • Inorganic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses an environment-friendly polyacrylamide modified water treatment agent and a preparation method thereof, wherein the water treatment agent is prepared from the following raw materials in parts by weight: 100-140 parts of tetrabutyl titanate, 2-3 parts of calcium ricinoleate, 30-40 parts of modified monomer emulsion, 3-5 parts of glycolic acid, 0.4-0.6 part of ammonium persulfate and 2-4 parts of aminating agent. The water treatment agent disclosed by the invention is good in environmental protection property, strong in bacteriostatic activity, good in use stability and high in recycling rate.

Description

Environment-friendly polyacrylamide modified water treatment agent and preparation method thereof
Technical Field
The invention belongs to the field of water treatment agents, and particularly relates to an environment-friendly polyacrylamide modified water treatment agent and a preparation method thereof.
Background
Due to population growth and economic development, a series of problems affecting the quality of resources are generated by excessive mining and unreasonable development and utilization of the resources, and the problems directly threaten the survival of the people and the offspring and descendants; the sewage treatment technology has very important effects on the problems of water saving, energy saving and the like, but simultaneously, the sewage treatment agent also has certain influence on the environment in the using process. In cooling water systems, scaling of inorganic salts such as calcium carbonate can have serious consequences in various situations where the water temperature is higher than ambient temperature. In recent years, in the field of water treatment, water treatment technologies applying alkalinity without adjusting pH value are increasing, wherein corrosion and scale inhibition agents are added, the application of low-phosphorus and phosphorus-free formulas is more and more extensive, and phosphorus-free green water treatment agents become hot subjects in the research aspect of domestic and foreign water treatment agents. The water treatment agent is scientifically utilized, so that the corrosion and scaling can be effectively prevented, the utilization rate of equipment and water is improved, and the aim of saving water sources and energy sources is fulfilled; at present, various methods such as physical, chemical, biological, comprehensive and the like exist for treating the water resource pollution problem, but the physical method mostly has the problems of poor treatment effect and unstable treatment rate; the biological method has high treatment cost and is not suitable for popularization and application; the sewage is treated by adopting a chemical method mostly, but the reagent components of the existing sewage treating agent have the problem of secondary pollution and have certain influence on the environment.
Disclosure of Invention
The invention aims to provide an environment-friendly polyacrylamide modified water treatment agent and a preparation method thereof aiming at the defects and the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
an environment-friendly polyacrylamide modified water treatment agent is composed of the following raw materials in parts by weight:
100-140 parts of tetrabutyl titanate, 2-3 parts of calcium ricinoleate, 30-40 parts of modified monomer emulsion, 3-5 parts of glycolic acid, 0.4-0.6 part of ammonium persulfate and 2-4 parts of aminating agent.
The modified monomer emulsion is prepared from the following raw materials in parts by weight:
20-30 parts of acrylamide, 3-5 parts of polyethylene glycol, 0.1-0.3 part of alkylphenol polyoxyethylene and 1-4 parts of aluminum sulfate.
The preparation method of the modified monomer emulsion comprises the following steps:
(1) adding alkylphenol polyoxyethylene into deionized water with the weight of 57-60 times of that of the alkylphenol polyoxyethylene, uniformly stirring, adding polyethylene glycol, raising the temperature to 75-80 ℃, keeping the temperature and stirring for 30-40 minutes to obtain water dispersion;
(2) mixing aluminum sulfate and acrylamide, preheating at 50-55 deg.C for 10-20 min, adding into the above water dispersion, and performing ultrasonic treatment for 3-5 min to obtain the final product.
The amination agent is one of ethylenediamine and diethylenetriamine.
A preparation method of an environment-friendly polyacrylamide modified water treatment agent comprises the following steps:
(1) adding calcium ricinoleate into 10-17 times of anhydrous ethanol, and stirring to obtain alcohol dispersion;
(2) adding tetrabutyl titanate into deionized water with the weight 10-15 times of that of tetrabutyl titanate, uniformly stirring, mixing with the alcohol dispersion, raising the temperature to 55-60 ℃, adding glycolic acid, keeping the temperature and stirring for 1-2 hours, carrying out suction filtration, washing a filter cake with water, and drying at normal temperature to obtain activated sol;
(3) adding the activated sol into thionyl chloride with the weight 6-9 times of that of the activated sol, stirring for 20-30 hours at the temperature of 65-70 ℃, distilling to remove the thionyl chloride, adding an aminating agent, stirring for 20-30 hours at the temperature of 100-105 ℃ to obtain aminated sol;
(4) adding ammonium persulfate into deionized water with the weight of 20-30 times of that of the ammonium persulfate, and uniformly stirring;
(5) and adding the aminated sol into the modified monomer emulsion, uniformly stirring, feeding into a reaction kettle, introducing nitrogen, adjusting the temperature of the reaction kettle to be 45-60 ℃, adding the ammonium persulfate aqueous solution, keeping the temperature and stirring for 3-5 hours, discharging and cooling, feeding into a drying oven, drying, discharging and cooling to obtain the environment-friendly polyacrylamide modified water treatment agent.
The preparation method of the environment-friendly polyacrylamide modified water treatment agent comprises the step (5) that the drying temperature is 68-75 ℃ and the drying time is 10-13 hours.
The invention has the advantages that:
the invention takes tetrabutyl titanate as a precursor, hydrolyzes in aqueous solution, adopts hydroxyl activation, then carries out amination modification to obtain aminated sol, then takes acrylamide as a monomer, and is blended and polymerized with the aminated sol, and the crosslinking modification of polyacrylamide by the sol can be realized in the polymerization process, thereby improving the water purification effect of polyacrylamide.
Detailed Description
Example 1
An environment-friendly polyacrylamide modified water treatment agent is composed of the following raw materials in parts by weight:
tetrabutyl titanate 140, calcium ricinoleate 3, modified monomer emulsion 40, glycolic acid 5, ammonium persulfate 0.6 and aminating agent 4.
The modified monomer emulsion is prepared from the following raw materials in parts by weight:
30 parts of acrylamide, 5 parts of polyethylene glycol, 0.3 part of alkylphenol polyoxyethylene and 4 parts of aluminum sulfate.
The preparation method of the modified monomer emulsion comprises the following steps:
(1) adding alkylphenol polyoxyethylene into deionized water 60 times of the weight of alkylphenol polyoxyethylene, stirring uniformly, adding polyethylene glycol, raising the temperature to 80 ℃, and keeping the temperature and stirring for 40 minutes to obtain water dispersion;
(2) mixing aluminum sulfate and acrylamide, preheating at 55 ℃ for 20 minutes, adding into the aqueous dispersion, and performing ultrasonic treatment for 5 minutes to obtain the aluminum sulfate/acrylamide aqueous dispersion.
The aminating agent is ethylenediamine.
A preparation method of an environment-friendly polyacrylamide modified water treatment agent comprises the following steps:
(1) adding calcium ricinoleate into absolute ethyl alcohol with the weight 17 times of that of the calcium ricinoleate, and uniformly stirring to obtain alcohol dispersion liquid;
(2) adding tetrabutyl titanate into deionized water 15 times of the weight of tetrabutyl titanate, uniformly stirring, mixing with the alcohol dispersion, raising the temperature to 60 ℃, adding glycolic acid, keeping the temperature, stirring for 2 hours, performing suction filtration, washing a filter cake with water, and drying at normal temperature to obtain activated sol;
(3) adding the activated sol into thionyl chloride 9 times of the weight of the activated sol, keeping the temperature and stirring for 30 hours at 70 ℃, distilling to remove the thionyl chloride, adding an aminating agent, keeping the temperature and stirring for 30 hours at 105 ℃ to obtain aminated sol;
(4) adding ammonium persulfate into deionized water with the weight 30 times that of the ammonium persulfate, and uniformly stirring;
(5) and adding the aminated sol into the modified monomer emulsion, uniformly stirring, feeding into a reaction kettle, introducing nitrogen, adjusting the temperature of the reaction kettle to 60 ℃, adding the ammonium persulfate aqueous solution, keeping the temperature, stirring for 5 hours, discharging, cooling, feeding into a drying oven, drying, discharging and cooling to obtain the environment-friendly polyacrylamide modified water treatment agent.
The preparation method of the environment-friendly polyacrylamide modified water treatment agent has the drying temperature of 75 ℃ and the drying time of 13 hours in the step (5).
Example 2
An environment-friendly polyacrylamide modified water treatment agent is composed of the following raw materials in parts by weight:
100 parts of tetrabutyl titanate, 2 parts of calcium ricinoleate, 30 parts of modified monomer emulsion, 3 parts of glycolic acid, 0.4 part of ammonium persulfate and 2 parts of aminating agent.
The modified monomer emulsion is prepared from the following raw materials in parts by weight:
20 parts of acrylamide, 3 parts of polyethylene glycol, 0.1 part of alkylphenol polyoxyethylene and 1 part of aluminum sulfate.
The preparation method of the modified monomer emulsion comprises the following steps:
(1) adding alkylphenol polyoxyethylene into deionized water with the weight of 57 times of that of the alkylphenol polyoxyethylene, uniformly stirring, adding polyethylene glycol, raising the temperature to 75 ℃, and keeping the temperature and stirring for 30 minutes to obtain water dispersion;
(2) mixing aluminum sulfate and acrylamide, preheating at 50 ℃ for 10 minutes, adding into the aqueous dispersion, and performing ultrasonic treatment for 3 minutes to obtain the aluminum sulfate/acrylamide composite material.
The amination agent is diethylenetriamine.
A preparation method of an environment-friendly polyacrylamide modified water treatment agent comprises the following steps:
(1) adding calcium ricinoleate into 10 times of anhydrous ethanol, and stirring to obtain alcohol dispersion;
(2) adding tetrabutyl titanate into deionized water with the weight being 10 times of that of tetrabutyl titanate, uniformly stirring, mixing with the alcohol dispersion, raising the temperature to 55 ℃, adding glycolic acid, keeping the temperature, stirring for 1 hour, performing suction filtration, washing a filter cake with water, and drying at normal temperature to obtain activated sol;
(3) adding the activated sol into thionyl chloride with the weight 6 times that of the activated sol, keeping the temperature and stirring for 20 hours at 65 ℃, distilling to remove the thionyl chloride, adding an aminating agent, keeping the temperature and stirring for 20 hours at 100 ℃ to obtain aminated sol;
(4) adding ammonium persulfate into deionized water with the weight of 20 times of that of the ammonium persulfate, and uniformly stirring;
(5) and adding the aminated sol into the modified monomer emulsion, uniformly stirring, feeding into a reaction kettle, introducing nitrogen, adjusting the temperature of the reaction kettle to 45 ℃, adding the ammonium persulfate aqueous solution, keeping the temperature and stirring for 3 hours, discharging and cooling, feeding into a drying oven, drying, discharging and cooling to obtain the environment-friendly polyacrylamide modified water treatment agent.
The preparation method of the environment-friendly polyacrylamide modified water treatment agent has the drying temperature of 68 ℃ and the drying time of 10 hours in the step (5).
Comparative example 1;
the product is as follows: CN201711320581.7, a magnetic polyacrylamide modified sewage treatment agent and a product of example 1 in the patent of a preparation method thereof;
comparative example 2:
the product is as follows: CN 201711320581.7A magnetic polyacrylamide modified sewage treatment agent and its preparation method patent the product of example 2;
and (3) performance testing:
initial sewage: COD average value is 4336mg/l, turbidity is 437 NTU;
the detection is carried out by adopting a method specified by a Hash instrument standard, after the environment-friendly polyacrylamide modified water treatment agent of the embodiment 1 and the embodiment 2 of the invention, a commercially available common water pollution treatment agent, the product of the comparative embodiment 1 and the product of the comparative embodiment 2 are respectively treated, the average COD values of the obtained water are respectively 147mg/l, 103mg/l, 1108 mg/l, 177mg/l and 189mg/l, and the turbidity is respectively 1.5NTU, 1.4NTU, 9.7NTU, 1.8NTU and 2.0 NTU;
compared with the traditional water treatment agent and the currently disclosed polyacrylamide water treatment agent, the sewage treatment agent disclosed by the invention has a better treatment effect.

Claims (6)

1. An environment-friendly polyacrylamide modified water treatment agent is characterized by comprising the following raw materials in parts by weight:
100-140 parts of tetrabutyl titanate, 2-3 parts of calcium ricinoleate, 30-40 parts of modified monomer emulsion, 3-5 parts of glycolic acid, 0.4-0.6 part of ammonium persulfate and 2-4 parts of aminating agent.
2. The environment-friendly polyacrylamide modified water treatment agent according to claim 1, wherein the modified monomer emulsion is composed of the following raw materials in parts by weight:
20-30 parts of acrylamide, 3-5 parts of polyethylene glycol, 0.1-0.3 part of alkylphenol polyoxyethylene and 1-4 parts of aluminum sulfate.
3. The environment-friendly polyacrylamide modified water treatment agent according to claim 2, wherein the preparation method of the modified monomer emulsion comprises the following steps:
(1) adding alkylphenol polyoxyethylene into deionized water with the weight of 57-60 times of that of the alkylphenol polyoxyethylene, uniformly stirring, adding polyethylene glycol, raising the temperature to 75-80 ℃, keeping the temperature and stirring for 30-40 minutes to obtain water dispersion;
(2) mixing aluminum sulfate and acrylamide, preheating at 50-55 deg.C for 10-20 min, adding into the above water dispersion, and performing ultrasonic treatment for 3-5 min to obtain the final product.
4. The environment-friendly polyacrylamide modified water treatment agent according to claim 1, wherein the aminating agent is one of ethylenediamine and diethylenetriamine.
5. The preparation method of the environment-friendly polyacrylamide modified water treatment agent as defined in any one of claims 1 to 4, comprising the steps of:
(1) adding calcium ricinoleate into 10-17 times of anhydrous ethanol, and stirring to obtain alcohol dispersion;
(2) adding tetrabutyl titanate into deionized water with the weight 10-15 times of that of tetrabutyl titanate, uniformly stirring, mixing with the alcohol dispersion, raising the temperature to 55-60 ℃, adding glycolic acid, keeping the temperature and stirring for 1-2 hours, carrying out suction filtration, washing a filter cake with water, and drying at normal temperature to obtain activated sol;
(3) adding the activated sol into thionyl chloride with the weight 6-9 times of that of the activated sol, stirring for 20-30 hours at the temperature of 65-70 ℃, distilling to remove the thionyl chloride, adding an aminating agent, stirring for 20-30 hours at the temperature of 100-105 ℃ to obtain aminated sol;
(4) adding ammonium persulfate into deionized water with the weight of 20-30 times of that of the ammonium persulfate, and uniformly stirring;
(5) and adding the aminated sol into the modified monomer emulsion, uniformly stirring, feeding into a reaction kettle, introducing nitrogen, adjusting the temperature of the reaction kettle to be 45-60 ℃, adding the ammonium persulfate aqueous solution, keeping the temperature and stirring for 3-5 hours, discharging and cooling, feeding into a drying oven, drying, discharging and cooling to obtain the environment-friendly polyacrylamide modified water treatment agent.
6. The method for preparing an environment-friendly polyacrylamide modified water treatment agent according to claim 5, wherein the drying temperature in the step (5) is 68-75 ℃ and the drying time is 10-13 hours.
CN202010525087.XA 2020-06-10 2020-06-10 Environment-friendly polyacrylamide modified water treatment agent and preparation method thereof Withdrawn CN111620987A (en)

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CN202010525087.XA CN111620987A (en) 2020-06-10 2020-06-10 Environment-friendly polyacrylamide modified water treatment agent and preparation method thereof

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Application Number Priority Date Filing Date Title
CN202010525087.XA CN111620987A (en) 2020-06-10 2020-06-10 Environment-friendly polyacrylamide modified water treatment agent and preparation method thereof

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CN111620987A true CN111620987A (en) 2020-09-04

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