CN110217902B - Multiple-effect phosphorus-free boiler water regulator - Google Patents
Multiple-effect phosphorus-free boiler water regulator Download PDFInfo
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- CN110217902B CN110217902B CN201910640761.6A CN201910640761A CN110217902B CN 110217902 B CN110217902 B CN 110217902B CN 201910640761 A CN201910640761 A CN 201910640761A CN 110217902 B CN110217902 B CN 110217902B
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
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Abstract
The invention discloses a multi-effect phosphorus-free boiler water regulator, which is prepared by the following steps: providing dodecylbenzyl ammonium chloride, dodecyldimethylbenzyl ammonium bromide and dithiocyano-methane; respectively preparing a first solid medicament, a second solid medicament and a third solid medicament; dissolving acrylic acid-hydroxypropyl acrylate (AA-HPA) and PVC in a mixed solvent of DMF and THF to obtain AA-HPA spinning solution, and adding a first solid medicament; generating a first boiler water treatment agent layer on a substrate; dissolving maleic anhydride-acrylamide-styrene (MA-AM-SE) and PVC in a mixed solvent of DMF and THF to obtain MA-AM-SE spinning solution, and adding a second solid medicament; generating a second boiler water treatment agent layer on the first boiler water treatment agent layer; dissolving AA-HPA, MA-AM-SE and PVC in a mixed solvent of DMF and THF to obtain AA-HPA and MA-AM-SE spinning solution, and adding a third solid medicament; generating a third boiler water treatment agent layer on the second boiler water treatment agent layer; and crushing the composite boiler water treatment agent with three layers.
Description
Technical Field
The invention relates to the technical field of boiler water regulators, in particular to a multi-effect phosphorus-free boiler water regulator.
Background
The main sources of corrosion and scale of boilers are media in boilers, and more than 95 percent of working media in boilers in China are industrial water at present. The industrial cooling water often contains Ca 2+ 、Mg 2+ Equal IIA main group metal cations and Fe 2+ 、Fe 3+ And with the continuous circulation of water in the boiler, water is evaporated along with the heated surface, and substances such as calcium carbonate, calcium sulfide and the like in the water are decomposed to form insoluble inorganic salts which are attached to the heated surface of the boiler to form scale. The heat exchange effect between the heating surface and the medium is reduced, under-deposit corrosion is caused, and the boiler material is thinned. Meanwhile, the generation of scale hinders the contact between the cooling circulating water and the heating surface of the boiler, so that the material of the boiler is over-heated, the allowable stress of the material is reduced, and boiler accidents are easy to occur.
The prior art CN102030420B relates to a phosphorus-free boiler water treatment agent, which is prepared from the following raw materials in percentage by mass: 3-25 parts of organic carboxylic acid polymer, 1-15 parts of organic amine, 1-5 parts of organic oxygen scavenger, 0-3 parts of sodium hydroxide and 52-95 parts of water, wherein the molecular formula of the organic carboxylic acid polymer is- [ CHR1-CH (COOH) -R2] -n, R1 is one or more of H, CH3, C6H5, COOH, alkyl, cycloalkyl, halogenated group and heteroaryl, and R2 is one or more of CH2, CH (CH3), C6H5, COOH, alkyl, cycloalkyl, halogenated group, heteroaryl, acyl and amide.
Prior art CN102083757B provides a boiler water treatment agent and a water treatment method capable of obtaining an excellent scale-inhibiting effect without deteriorating the performance during storage and distribution even when phosphoric acid or a phosphate and a natural deoxidizer are contained. A boiler water treatment agent is compounded with a phosphoric acid component, namely, a polymeric phosphoric acid and/or a polymeric phosphate, and also with a natural deoxidizer containing a polyphenol organic compound and/or a polysaccharide organic compound. Further, the boiler water treatment agent and the alkaline agent are added to a boiler water system to perform water treatment of the boiler water system.
The prior art CN109133392A provides a green low-phosphorus environment-friendly scale-inhibition descaling corrosion-prevention deoxidization boiler treatment agent, which comprises the following components in parts by weight: s-carboxyethylthiosuccinic acid: 15-35 parts of sodium fulvate: 5-23 parts of ethylene diamine tetramethylene phosphonic acid pentasodium: 10-30 parts of potassium hydroxide: 6-20 parts of D-sodium erythorbate: 10-20 parts of N-isopropylhydroxylamine: 8-25 parts of deionized water: 30-90 parts. The boiler water treatment agent is a low-phosphorus environment-friendly agent, and each component is green and pollution-free and has no harm to the environment. The water treatment agent for the boiler is widely applied to a circulating water system of an industrial boiler, has excellent corrosion and scale inhibition performance, and also has an oxygen removal effect.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a multi-effect phosphorus-free boiler water regulator which can overcome the defects of the prior art.
In order to achieve the purpose, the invention provides a multiple-effect phosphorus-free boiler water regulator, which is prepared by the following steps: providing dodecylbenzyl ammonium chloride, dodecyldimethylbenzyl ammonium bromide and dithiocyano-methane; respectively preparing a first solid medicament, a second solid medicament and a third solid medicament, wherein the first solid medicament comprises dodecyl benzyl ammonium chloride and dithiocyano-methane, the second solid medicament comprises dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane, and the third solid medicament comprises dodecyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane; dissolving acrylic acid-hydroxypropyl acrylate (AA-HPA) and PVC in a mixed solvent of DMF and THF to obtain AA-HPA spinning solution; adding a first solid medicament to an AA-HPA spinning solution to obtain a first medicament spinning solution, wherein the first solid medicament has a first concentration in the first medicament spinning solution; generating a first boiler water treatment agent layer on the substrate by using a first medicament spinning solution and an electrostatic spinning method; dissolving maleic anhydride-acrylamide-styrene (MA-AM-SE) and PVC (polyvinyl chloride) in a mixed solvent of DMF and THF (dimethyl formamide) to obtain MA-AM-SE spinning solution; adding a second solid medicament into the MA-AM-SE spinning solution to obtain a second medicament spinning solution, wherein the second solid medicament has a second concentration in the second medicament spinning solution; generating a second boiler water treatment agent layer on the first boiler water treatment agent layer by using a second medicament spinning solution and an electrostatic spinning method; dissolving AA-HPA, MA-AM-SE and PVC in a mixed solvent of DMF and THF to obtain AA-HPA and MA-AM-SE spinning solution; adding a third solid medicament into AA-HPA and MA-AM-SE spinning solutions to obtain a third medicament spinning solution, wherein the third solid medicament has a third concentration in the third medicament spinning solution; generating a third boiler water treatment agent layer on the second boiler water treatment agent layer by using a third medicament spinning solution and an electrostatic spinning method; and crushing the composite boiler water treatment agent with three layers to obtain the multi-effect phosphorus-free boiler water regulator.
In a preferred embodiment, the mass ratio of the dodecyl benzyl ammonium chloride to the dithiocyano methane in the first solid medicament is (2-4): 1, the mass ratio of the dodecyl dimethyl benzyl ammonium bromide to the dithiocyano-methane in the second solid medicament is (2-4): 1.
in a preferred embodiment, the mass ratio of the dodecyl benzyl ammonium chloride, the dodecyl dimethyl benzyl ammonium bromide and the dithiocyano-methane in the third solid medicament is (1-2): (1-2): 4.
in a preferred embodiment, the AA-HPA dope has an AA-HPA concentration of 10 to 15 wt% and the first concentration is 15 to 20 wt%.
In a preferred embodiment, the specific process for generating the first boiler water treatment agent layer on the substrate by using the first medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 10-15mL/h, the spinning voltage is 25-30kV, and the distance between a spinning nozzle and a substrate is 15-20 cm.
In a preferred embodiment, the MA-AM-SE dope has a MA-AM-SE concentration of 15 to 20 wt% and the second concentration is 10 to 15 wt%.
In a preferred embodiment, the specific process for forming the second boiler water treatment agent layer on the first boiler water treatment agent layer by using the second medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 5-10mL/h, the spinning voltage is 20-25kV, and the distance between a spinning nozzle and a substrate is 10-15 cm.
In a preferred embodiment, the AA-HPA and MA-AM-SE spinning solutions have an AA-HPA concentration of 7 to 10 wt%, an MA-AM-SE concentration of 7 to 10 wt% and a third concentration of 12 to 14 wt%.
In a preferred embodiment, the specific process for generating the third boiler water treatment agent layer on the second boiler water treatment agent layer by using the third medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 7-13mL/h, the spinning voltage is 15-20kV, and the distance between a spinning nozzle and a substrate is 5-10 cm.
In a preferred embodiment, the concentration of PVC in the AA-HPA dope is 10-15 wt%, the concentration of PVC in the MA-AM-SE dope is 15-20 wt%, and the concentration of PVC in the AA-HPA and MA-AM-SE dopes is 15-20 wt%.
Compared with the prior art, the invention has the following advantages: in recent years, the development of boiler water treatment agents in China generally focuses on the selection of chemical components and the selection of component proportions, and although the scale inhibition effect of the treatment agent can be improved slightly by the method, the components of the treatment agent are complex, so that the interrelation and the mutual influence among the components are complex, the stability of the product is not high, and the requirements on use conditions and storage conditions are high. This innovation actually increases the cost of the treating agent considerably. The invention provides a novel method for preparing a treating agent, and provides a furnace water treating agent with a novel form, which is prepared by an electrostatic spinning method.
Drawings
FIG. 1 is a flow chart of a method for preparing a multi-effect phosphorus-free boiler water conditioner according to an embodiment of the present invention.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component. AA-HPA and MA-AM-SE are well known copolymers in the art, for example, the purchase channels for the relevant materials are searched in hundredths, and the preparation methods of the two materials are already given in the early literature of the art (for example, US4223120 and US 4029577).
Fig. 1 is a flow chart of a preparation method of a multi-effect phosphorus-free boiler water conditioner according to an embodiment of the invention. As shown in the figure, the multi-effect phosphorus-free boiler water regulator is prepared by the following steps:
step 101: providing dodecylbenzyl ammonium chloride, dodecyldimethylbenzyl ammonium bromide and dithiocyano-methane;
step 102: respectively preparing a first solid medicament, a second solid medicament and a third solid medicament, wherein the first solid medicament comprises dodecyl benzyl ammonium chloride and dithiocyano-methane, the second solid medicament comprises dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane, and the third solid medicament comprises dodecyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane;
step 103: dissolving acrylic acid-hydroxypropyl acrylate (AA-HPA) and PVC in a mixed solvent of DMF and THF to obtain AA-HPA spinning solution;
step 104: adding a first solid medicament into an AA-HPA spinning solution to obtain a first medicament spinning solution, wherein the first solid medicament has a first concentration in the first medicament spinning solution;
step 105: generating a first boiler water treatment agent layer on the substrate by using a first medicament spinning solution and an electrostatic spinning method;
step 106: dissolving maleic anhydride-acrylamide-styrene (MA-AM-SE) and PVC (polyvinyl chloride) in a mixed solvent of DMF (dimethyl formamide) and THF (tetrahydrofuran) to obtain MA-AM-SE spinning solution;
step 107: adding a second solid medicament into the MA-AM-SE spinning solution to obtain a second medicament spinning solution, wherein the second solid medicament has a second concentration in the second medicament spinning solution;
step 108: generating a second boiler water treatment agent layer on the first boiler water treatment agent layer by using a second agent spinning solution and an electrostatic spinning method;
step 109: dissolving AA-HPA, MA-AM-SE and PVC in a mixed solvent of DMF and THF to obtain AA-HPA and MA-AM-SE spinning solution;
step 110: adding a third solid medicament into the AA-HPA and MA-AM-SE spinning solutions to obtain a third medicament spinning solution, wherein the third solid medicament has a third concentration in the third medicament spinning solution;
step 111: generating a third boiler water treatment agent layer on the second boiler water treatment agent layer by using a third medicament spinning solution and an electrostatic spinning method; and
step 112: and crushing the three-layer composite boiler water treatment agent to obtain the multi-effect phosphorus-free boiler water regulator.
Example 1
The multi-effect phosphorus-free boiler water regulator is prepared by the following steps: providing dodecyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane; respectively preparing a first solid medicament, a second solid medicament and a third solid medicament, wherein the first solid medicament comprises dodecyl benzyl ammonium chloride and dithiocyano-methane, the second solid medicament comprises dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane, and the third solid medicament comprises dodecyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane; dissolving acrylic acid-hydroxypropyl acrylate (AA-HPA) in a mixed solvent of DMF and THF to obtain AA-HPA spinning solution; adding a first solid medicament into an AA-HPA spinning solution to obtain a first medicament spinning solution, wherein the first solid medicament has a first concentration in the first medicament spinning solution; generating a first boiler water treatment agent layer on the substrate by using a first medicament spinning solution and an electrostatic spinning method; dissolving maleic anhydride-acrylamide-styrene (MA-AM-SE) in a mixed solvent of DMF and THF to obtain MA-AM-SE spinning solution; adding a second solid medicament into the MA-AM-SE spinning solution to obtain a second medicament spinning solution, wherein the second solid medicament has a second concentration in the second medicament spinning solution; generating a second boiler water treatment agent layer on the first boiler water treatment agent layer by using a second agent spinning solution and an electrostatic spinning method; dissolving AA-HPA and MA-AM-SE in a mixed solvent of DMF and THF to obtain AA-HPA and MA-AM-SE spinning solution; adding a third solid medicament into the AA-HPA and MA-AM-SE spinning solutions to obtain a third medicament spinning solution, wherein the third solid medicament has a third concentration in the third medicament spinning solution; generating a third boiler water treatment agent layer on the second boiler water treatment agent layer by using a third medicament spinning solution and an electrostatic spinning method; and crushing the composite boiler water treatment agent with three layers to obtain the multi-effect phosphorus-free boiler water regulator. The mass ratio of the dodecyl benzyl ammonium chloride to the dithiocyano methane in the first solid medicament is 2: 1, the mass ratio of the dodecyl dimethyl benzyl ammonium bromide to the dithiocyano-methane in the second solid medicament is 2: 1. the mass ratio of dodecyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane in the third solid medicament is 1: 1: 4. the AA-HPA concentration in the AA-HPA spinning solution is 10 wt%, and the first concentration is 15 wt%. The specific process for generating the first boiler water treatment agent layer on the substrate by utilizing the first medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 10mL/h, the spinning voltage is 25kV, and the distance between a spinning nozzle and the substrate is 15 cm. The MA-AM-SE spinning solution has a MA-AM-SE concentration of 15 wt% and a second concentration of 10 wt%. The specific process for generating the second boiler water treatment agent layer on the first boiler water treatment agent layer by utilizing the second medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 5mL/h, the spinning voltage is 20kV, and the distance between a spinning nozzle and the substrate is 10 cm. In the AA-HPA and MA-AM-SE spinning solutions, the concentration of AA-HPA is 7 wt%, the concentration of MA-AM-SE is 7 wt%, and the third concentration is 12 wt%. The specific process for generating the third boiler water treatment agent layer on the second boiler water treatment agent layer by utilizing the third medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 7mL/h, the spinning voltage is 15kV, and the distance between a spinning nozzle and the substrate is 5 cm. The concentration of PVC in the AA-HPA spinning solution is 10 wt%, the concentration of PVC in the MA-AM-SE spinning solution is 15 wt%, and the concentration of PVC in the AA-HPA spinning solution and the MA-AM-SE spinning solution is 15 wt%.
Example 2
The multi-effect phosphorus-free boiler water regulator is prepared by the following steps: providing dodecylbenzyl ammonium chloride, dodecyldimethylbenzyl ammonium bromide and dithiocyano-methane; respectively preparing a first solid medicament, a second solid medicament and a third solid medicament, wherein the first solid medicament comprises dodecyl benzyl ammonium chloride and dithiocyano-methane, the second solid medicament comprises dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane, and the third solid medicament comprises dodecyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane; dissolving acrylic acid-hydroxypropyl acrylate (AA-HPA) in a mixed solvent of DMF and THF to obtain AA-HPA spinning solution; adding a first solid medicament to an AA-HPA spinning solution to obtain a first medicament spinning solution, wherein the first solid medicament has a first concentration in the first medicament spinning solution; generating a first boiler water treatment agent layer on the substrate by using a first medicament spinning solution and an electrostatic spinning method; dissolving maleic anhydride-acrylamide-styrene (MA-AM-SE) in a mixed solvent of DMF and THF to obtain MA-AM-SE spinning solution; adding a second solid medicament into the MA-AM-SE spinning solution to obtain a second medicament spinning solution, wherein the second solid medicament has a second concentration in the second medicament spinning solution; generating a second boiler water treatment agent layer on the first boiler water treatment agent layer by using a second agent spinning solution and an electrostatic spinning method; dissolving AA-HPA and MA-AM-SE in a mixed solvent of DMF and THF to obtain AA-HPA and MA-AM-SE spinning solution; adding a third solid medicament into the AA-HPA and MA-AM-SE spinning solutions to obtain a third medicament spinning solution, wherein the third solid medicament has a third concentration in the third medicament spinning solution; generating a third boiler water treatment agent layer on the second boiler water treatment agent layer by using a third medicament spinning solution and an electrostatic spinning method; and crushing the three-layer composite boiler water treatment agent to obtain the multi-effect phosphorus-free boiler water regulator. The mass ratio of the dodecyl benzyl ammonium chloride to the dithiocyano methane in the first solid medicament is 4: 1, the mass ratio of the dodecyl dimethyl benzyl ammonium bromide to the dithiocyano-methane in the second solid medicament is 4: 1. the mass ratio of dodecyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane in the third solid medicament is 2: 2: 4. the AA-HPA concentration in the AA-HPA spinning solution is 15 wt%, and the first concentration is 20 wt%. The specific process for generating the first boiler water treatment agent layer on the substrate by utilizing the first medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 15mL/h, the spinning voltage is 30kV, and the distance between a spinning nozzle and a substrate is 20 cm. The MA-AM-SE spinning solution has a MA-AM-SE concentration of 20 wt% and a second concentration of 15 wt%. The specific process for generating the second boiler water treatment agent layer on the first boiler water treatment agent layer by utilizing the second medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 10mL/h, the spinning voltage is 25kV, and the distance between a spinning nozzle and the substrate is 15 cm. In the AA-HPA and MA-AM-SE spinning solutions, the concentration of AA-HPA was 10 wt%, the concentration of MA-AM-SE was 10 wt%, and the third concentration was 14 wt%. The specific process for generating the third boiler water treatment agent layer on the second boiler water treatment agent layer by utilizing the third medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 13mL/h, the spinning voltage is 20kV, and the distance between a spinning nozzle and a substrate is 10 cm. The concentration of PVC in the AA-HPA spinning solution is 15 wt%, the concentration of PVC in the MA-AM-SE spinning solution is 20 wt%, and the concentration of PVC in the AA-HPA spinning solution and the MA-AM-SE spinning solution is 20 wt%.
Example 3
The multi-effect phosphorus-free boiler water regulator is prepared by the following steps: providing dodecyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane; respectively preparing a first solid medicament, a second solid medicament and a third solid medicament, wherein the first solid medicament comprises dodecyl benzyl ammonium chloride and dithiocyano-methane, the second solid medicament comprises dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane, and the third solid medicament comprises dodecyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane; dissolving acrylic acid-hydroxypropyl acrylate (AA-HPA) in a mixed solvent of DMF and THF to obtain AA-HPA spinning solution; adding a first solid medicament into an AA-HPA spinning solution to obtain a first medicament spinning solution, wherein the first solid medicament has a first concentration in the first medicament spinning solution; generating a first boiler water treatment agent layer on the substrate by using a first medicament spinning solution and an electrostatic spinning method; dissolving maleic anhydride-acrylamide-styrene (MA-AM-SE) in a mixed solvent of DMF and THF to obtain MA-AM-SE spinning solution; adding a second solid medicament into the MA-AM-SE spinning solution to obtain a second medicament spinning solution, wherein the second solid medicament has a second concentration in the second medicament spinning solution; generating a second boiler water treatment agent layer on the first boiler water treatment agent layer by using a second medicament spinning solution and an electrostatic spinning method; dissolving AA-HPA and MA-AM-SE in a mixed solvent of DMF and THF to obtain AA-HPA and MA-AM-SE spinning solution; adding a third solid medicament into AA-HPA and MA-AM-SE spinning solutions to obtain a third medicament spinning solution, wherein the third solid medicament has a third concentration in the third medicament spinning solution; generating a third boiler water treatment agent layer on the second boiler water treatment agent layer by using a third medicament spinning solution and an electrostatic spinning method; and crushing the three-layer composite boiler water treatment agent to obtain the multi-effect phosphorus-free boiler water regulator. The mass ratio of dodecyl benzyl ammonium chloride to dithiocyano methane in the first solid medicament is 3: 1, the mass ratio of the dodecyl dimethyl benzyl ammonium bromide to the dithiocyano-methane in the second solid medicament is 3: 1. the mass ratio of dodecyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane in the third solid medicament is 1.5: 1.5: 4. the AA-HPA concentration in the AA-HPA spinning solution is 12 wt%, and the first concentration is 18 wt%. The specific process for generating the first boiler water treatment agent layer on the substrate by utilizing the first medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 12mL/h, the spinning voltage is 27kV, and the distance between a spinning nozzle and a substrate is 18 cm. The MA-AM-SE spinning solution had a MA-AM-SE concentration of 18 wt% and a second concentration of 12 wt%. The specific process for generating the second boiler water treatment agent layer on the first boiler water treatment agent layer by utilizing the second medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 7mL/h, the spinning voltage is 22kV, and the distance between a spinning nozzle and a substrate is 12 cm. In the AA-HPA and MA-AM-SE spinning solutions, the concentration of AA-HPA was 8 wt%, the concentration of MA-AM-SE was 8 wt%, and the third concentration was 13 wt%. The specific process for generating the third boiler water treatment agent layer on the second boiler water treatment agent layer by utilizing the third medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 10mL/h, the spinning voltage is 18kV, and the distance between a spinning nozzle and a substrate is 8 cm. The concentration of PVC in AA-HPA spinning solution is 12 wt%, the concentration of PVC in MA-AM-SE spinning solution is 16 wt%, and the concentration of PVC in AA-HPA and MA-AM-SE spinning solutions is 16 wt%.
Comparative example 1
The difference from the embodiment 1 is that: the first solid agent is dodecyl benzyl ammonium chloride, the second solid agent is dithiocyano methane, and the third solid agent is dodecyl dimethyl benzyl ammonium bromide.
Comparative example 2
The difference from the embodiment 1 is that: adding a second solid agent to the AA-HPA dope to obtain a second agent dope, wherein the second solid agent has a second concentration in the second agent dope.
Comparative example 3
The difference from the embodiment 1 is that: adding a third solid agent to the AA-HPA dope to obtain a third agent dope, wherein the third solid agent has a third concentration in the third agent dope.
Comparative example 4
The difference from the embodiment 1 is that: the mass ratio of the dodecyl benzyl ammonium chloride to the dithiocyano methane in the first solid medicament is 5: 1, the mass ratio of the dodecyl dimethyl benzyl ammonium bromide to the dithiocyano-methane in the second solid medicament is 5: 1.
comparative example 5
The difference from the embodiment 1 is that: the mass ratio of dodecyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane in the third solid medicament is 3: 3: 4.
comparative example 6
The difference from the example 1 is that: the AA-HPA concentration in the AA-HPA spinning solution is 20 wt%, and the first concentration is 25 wt%.
Comparative example 7
The difference from the example 1 is that: the specific process for generating the first boiler water treatment agent layer on the substrate by utilizing the first medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 20mL/h, the spinning voltage is 35kV, and the distance between a spinning nozzle and a substrate is 25 cm.
Comparative example 8
The difference from the embodiment 1 is that: the MA-AM-SE spinning solution has a MA-AM-SE concentration of 25 wt% and a second concentration of 20 wt%.
Comparative example 9
The difference from the embodiment 1 is that: the specific process for generating the second boiler water treatment agent layer on the first boiler water treatment agent layer by utilizing the second medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 15mL/h, the spinning voltage is 35kV, and the distance between a spinning nozzle and a substrate is 20 cm.
Comparative example 10
The difference from the embodiment 1 is that: in the AA-HPA and MA-AM-SE spinning solutions, the concentration of AA-HPA is 15 wt%, the concentration of MA-AM-SE is 15 wt%, and the third concentration is 15 wt%.
Comparative example 11
The difference from the embodiment 1 is that: the specific process for generating the third boiler water treatment agent layer on the second boiler water treatment agent layer by utilizing the third medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 15mL/h, the spinning voltage is 25kV, and the distance between a spinning nozzle and a substrate is 15 cm.
Comparative example 12
The difference from the embodiment 1 is that: US4029577 table 4 copolymer No. 23.
Comparative example 13
The difference from the embodiment 1 is that: US4029577 exemplifies the copolymer of example 1.
The boiler water treatment agents of examples 1 to 3 and comparative documents 1 to 13 were subjected to scale inhibition tests of calcium carbonate, calcium phosphate and zinc salt, with a test water temperature of 80 ℃ and a test pH of 9, with the addition of the treatment agents being kept consistent for each example and for the comparative proportions (with the addition being kept at 10 mg/L). The test method is shown in research on novel boiler water treatment agent, Master academic paper of Shandong university, Zhang Lihong by the authors.
TABLE 1
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (8)
1. A multi-effect phosphorus-free boiler water regulator is characterized in that: the multi-effect phosphorus-free boiler water regulator is prepared by the following steps:
providing dodecyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane;
preparing a first solid medicament, a second solid medicament and a third solid medicament respectively, wherein the first solid medicament comprises dodecyl benzyl ammonium chloride and dithiocyano-methane, the second solid medicament comprises dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane, and the third solid medicament comprises dodecyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane;
dissolving acrylic acid-hydroxypropyl acrylate AA-HPA and polyvinyl chloride in a mixed solvent of dimethylformamide and tetrahydrofuran to obtain AA-HPA spinning solution;
adding the first solid agent to the AA-HPA dope to obtain a first agent dope, wherein the first solid agent has a first concentration in the first agent dope;
generating a first boiler water treatment agent layer on a substrate by using the first medicament spinning solution and an electrostatic spinning method;
dissolving maleic anhydride-acrylamide-styrene MA-AM-SE and polyvinyl chloride in a mixed solvent of dimethylformamide and tetrahydrofuran to obtain MA-AM-SE spinning solution;
adding the second solid agent to the MA-AM-SE dope to obtain a second agent dope, wherein the second solid agent has a second concentration in the second agent dope;
generating a second boiler water treatment agent layer on the first boiler water treatment agent layer by using the second reagent spinning solution and an electrostatic spinning method;
dissolving acrylic acid-hydroxypropyl acrylate AA-HPA, maleic anhydride-acrylamide-styrene MA-AM-SE and polyvinyl chloride in a mixed solvent of dimethylformamide and tetrahydrofuran to obtain AA-HPA and MA-AM-SE spinning solution;
adding the third solid pharmaceutical agent to the AA-HPA and MA-AM-SE dopes to obtain a third pharmaceutical agent dope, wherein the third solid pharmaceutical agent has a third concentration in the third pharmaceutical agent dope;
generating a third boiler water treatment agent layer on the second boiler water treatment agent layer by using the third medicament spinning solution and an electrostatic spinning method; and
crushing the composite boiler water treatment agent with three layers to obtain the multi-effect phosphorus-free boiler water regulator,
the mass ratio of the dodecyl benzyl ammonium chloride to the dithiocyano methane in the first solid medicament is (2-4): 1, the mass ratio of the dodecyl dimethyl benzyl ammonium bromide to the dithiocyano-methane in the second solid medicament is (2-4): 1,
the mass ratio of dodecyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide and dithiocyano-methane in the third solid medicament is (1-2): (1-2): 4.
2. the multiple-effect phosphorus-free boiler water conditioner of claim 1, wherein: the AA-HPA spinning solution contains acrylic acid-hydroxypropyl acrylate AA-HPA with the concentration of 10-15 wt% and the first concentration of 15-20 wt%.
3. The multiple-effect phosphorus-free boiler water conditioner of claim 2, wherein: the specific process for generating the first boiler water treatment agent layer on the substrate by utilizing the first medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 10-15mL/h, the spinning voltage is 25-30kV, and the distance between a spinning nozzle and a substrate is 15-20 cm.
4. The multi-effect phosphorus-free boiler water conditioner of claim 3, wherein: the MA-AM-SE spinning solution contains 15-20 wt% of maleic anhydride-acrylamide-styrene MA-AM-SE and 10-15 wt% of maleic anhydride-acrylamide-styrene MA-AM-SE.
5. The multi-effect phosphorus-free boiler water conditioner of claim 4, wherein: the specific process for generating the second boiler water treatment agent layer on the first boiler water treatment agent layer by utilizing the second medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 5-10mL/h, the spinning voltage is 20-25kV, and the distance between a spinning nozzle and a substrate is 10-15 cm.
6. The multi-effect phosphorus-free boiler water conditioner of claim 5, wherein: in the AA-HPA and MA-AM-SE spinning solution, the concentration of acrylic acid-hydroxypropyl acrylate AA-HPA is 7-10 wt%, the concentration of maleic anhydride-acrylamide-styrene MA-AM-SE is 7-10 wt%, and the third concentration is 12-14 wt%.
7. The multi-effect phosphorus-free boiler water conditioner of claim 6, wherein: the specific process for generating the third boiler water treatment agent layer on the second boiler water treatment agent layer by using the third medicament spinning solution and an electrostatic spinning method comprises the following steps: the injection speed of the spinning solution is 7-13mL/h, the spinning voltage is 15-20kV, and the distance between a spinning nozzle and a substrate is 5-10 cm.
8. The multi-effect phosphorus-free boiler water conditioner of claim 7, wherein: the concentration of polyvinyl chloride in the AA-HPA spinning solution is 10-15 wt%, the concentration of polyvinyl chloride in the MA-AM-SE spinning solution is 15-20 wt%, and the concentration of polyvinyl chloride in the AA-HPA spinning solution and the MA-AM-SE spinning solution is 15-20 wt%.
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| CN1953939A (en) * | 2004-05-14 | 2007-04-25 | 雷克特本克斯尔荷兰有限公司 | Water-softening product, its preparation and its use |
| CN106621590A (en) * | 2016-12-30 | 2017-05-10 | 东华大学 | Filtering material with antibacterial function and preparation method thereof |
| ES2663129A1 (en) * | 2016-10-11 | 2018-04-11 | Universidad De Alcalá | Dual-action electro-wound membranes for water treatment (Machine-translation by Google Translate, not legally binding) |
| CN108842210A (en) * | 2018-04-29 | 2018-11-20 | 宁波革创新材料科技有限公司 | A kind of complex fiber material for water process |
| CN109293015A (en) * | 2018-10-29 | 2019-02-01 | 重庆千信能源环保有限公司 | A kind of industrial circulation water treatment medicament |
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| CN1953939A (en) * | 2004-05-14 | 2007-04-25 | 雷克特本克斯尔荷兰有限公司 | Water-softening product, its preparation and its use |
| ES2663129A1 (en) * | 2016-10-11 | 2018-04-11 | Universidad De Alcalá | Dual-action electro-wound membranes for water treatment (Machine-translation by Google Translate, not legally binding) |
| CN106621590A (en) * | 2016-12-30 | 2017-05-10 | 东华大学 | Filtering material with antibacterial function and preparation method thereof |
| CN108842210A (en) * | 2018-04-29 | 2018-11-20 | 宁波革创新材料科技有限公司 | A kind of complex fiber material for water process |
| CN109293015A (en) * | 2018-10-29 | 2019-02-01 | 重庆千信能源环保有限公司 | A kind of industrial circulation water treatment medicament |
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