CN111393565A - Cationic polyacrylamide production device and process - Google Patents
Cationic polyacrylamide production device and process Download PDFInfo
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- CN111393565A CN111393565A CN202010267786.9A CN202010267786A CN111393565A CN 111393565 A CN111393565 A CN 111393565A CN 202010267786 A CN202010267786 A CN 202010267786A CN 111393565 A CN111393565 A CN 111393565A
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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
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/01—Processes of polymerisation characterised by special features of the polymerisation apparatus used
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Abstract
The application belongs to the field of high-molecular chemical polymerization reaction, and particularly relates to a cationic polyacrylamide production process and device. In the process, the heating condition in the process is changed, the lamplight hot drying is changed into the steam hot air drying, so that the pungent smell in the production process is avoided, and the particle size of the finished product is adjusted from 40 meshes to 20 meshes, so that the performance of the finished product is more excellent. The quality of the polyacrylamide flocculant product is improved. The flocculant produced by the new process has enhanced water solubility (the dissolution speed is less than or equal to 4min, and the national standard is less than or equal to 5 min), and is more beneficial to the use in a papermaking workshop.
Description
Technical Field
The application belongs to the field of high-molecular chemical polymerization reaction, and particularly relates to a cationic polyacrylamide production device and process.
Background
With the rapid development of modern civilization, the environmental impact of industrial wastewater and municipal sewage discharge is receiving more and more attention, and cationic polyacrylamide is widely used in this field as a water purifying agent. The technology for producing cationic polyacrylamide is different, and the current photopolymerisation trough technology for polyacrylamide used in industrial wastewater of paper making industry is that acrylamide aqueous solution and cationic monomer solution with a certain proportion are mixed and then injected into 21 (a production line) polymerization troughs, and then polymerization is initiated by a polymerization lamp with a certain wavelength. Because the polymerization bed is an open type device, materials are polymerized at high temperature, the environment temperature is high, the condition that odorous gas overflows in a workshop is serious, and the polymerization bed has certain influence on the body of workers. And the polymerized colloid has large workload, large labor intensity and high personnel cost in the granulation process.
For the reasons, it is particularly necessary to design and invent a new device and process for producing cationic polyacrylamide.
Disclosure of Invention
In order to overcome the problems in the prior art, the application provides a production device and a production process of cationic polyacrylamide, wherein the heating condition in the process is changed, the lamplight hot drying is changed into steam hot air drying, so that the pungent smell in the production process is avoided, and the particle size of a finished product is adjusted from 40 meshes to 20 meshes, so that the performance of the finished product is more excellent.
In order to achieve the purpose, the technical scheme adopted by the application is as follows:
a production device of cationic polyacrylamide has the following specific structure:
the material mixing device comprises a material mixing tank, wherein the bottom of the material mixing tank is connected with a feeding port of a polymerization kettle, a discharging port of the polymerization kettle is connected with a feeding port of a high-pressure granulator, an outlet of the high-pressure granulator is connected with a drum dryer through a first fan, the drum dryer is connected with a vibration drying bed through a fourth fan, the vibration drying bed is connected with a vibration sieve through a tenth fan and a material outlet of a fourth cyclone dust collector, and the vibration sieve is connected with a first flour mill and a second flour mill;
all the parts are connected through pipelines;
a chemical pump is arranged on a connecting pipeline between the batching tank and the polymerization kettle;
the upper part of the roller dryer is connected with the inlet of the first cyclone dust collector through a second fan, and the outlet of the first cyclone dust collector is connected with the atmosphere through a fifth fan;
the upper part of the roller dryer is connected with the first heat exchanger through a third fan;
a second heat exchanger is arranged above the vibration drying bed and is connected with the atmosphere through an eighth fan;
the upper part of the vibration drying bed is connected with the inlet of the second cyclone dust collector through a seventh fan,
the outlet of the second cyclone dust collector is connected with the inlet of the third cyclone dust collector, the outlet of the second cyclone dust collector is connected with the outlet of the fourth cyclone dust collector, and the outlet of the third cyclone dust collector is connected with the atmosphere through a sixth fan;
the material outlet of the first flour mill is connected with the inlet of the fourth cyclone dust collector through an eleventh fan;
the production device of the cationic polyacrylamide and the process for producing the cationic polyacrylamide specifically comprise the following steps:
1) adding acrylamide aqueous solution, cationic monomer and water into a batching tank 1, adjusting the pH of the mixture to 2-4, and adjusting the temperature to 2 ℃;
2) inputting the product obtained in the step 1) into a polymerization kettle by the power of a chemical pump, sequentially adding an initiator and a chelating agent after nitrogen is deoxidized, adjusting the temperature to 3-5 ℃, carrying out polymerization reaction to form a polymerized colloid, and after the temperature is kept for 2 hours, feeding the colloid into a high-pressure granulator for granulation;
3) the product obtained in the step 2) enters a roller dryer through a first fan to be primarily dried, and then is conveyed to a vibration drying bed through a fourth fan to be finally dried;
4) and (3) allowing the product obtained in the step 3) to enter a fourth cyclone dust collector through a tenth fan and then enter a vibrating screen, and after screening, allowing particles with different particle sizes to enter a first pulverizer and a second pulverizer respectively.
The particles with different particle sizes in the step 4) respectively enter a first grinding machine and a second grinding machine, specifically, particles with particle sizes of less than 2mm enter the second grinding machine, and are ground into qualified products with particle sizes of less than or equal to 0.85 mm; the polyacrylamide colloid with the grain diameter being more than or equal to 2mm enters a first grinding machine, the particles ground into the grain diameter being less than 2mm enter a second grinding machine again through an eleventh fan, a fourth cyclone dust collector and a vibrating screen, and the particle diameter is ground into the grain diameter being less than or equal to 0.85 mm;
the concentration of the acrylamide aqueous solution in the step 1) is 25 percent;
the monomer in the step 1) is acryloyloxyethyltrimethyl ammonium chloride, and the mass ratio of the acryloyloxyethyltrimethyl ammonium chloride to the acrylamide is 1: 9;
the mass ratio of the water in the step 1) to the acrylamide aqueous solution is 3: 1;
the initiator in the step 2) is azobisisobutyrimidazoline hydrochloride, the chelating agent is pentasodium diethylenetriaminepentaacetate, and the initiator and the chelating agent respectively account for 0.5 per mill and 0.5 per mill of the mass of the acrylamide;
the cyclone dust collector arranged in the device plays a role in dust removal;
the heat exchanger is used for drying the temperature inside the device.
The cationic polyacrylamide particles produced by the production process of the cationic polyacrylamide are applied to the aspect of papermaking wastewater treatment.
Advantages and contribution to the society of the present application:
1. the quality of the polyacrylamide flocculant product is improved. The flocculant produced by the new process has enhanced water solubility (the dissolution speed is less than or equal to 4min, and the national standard is less than or equal to 5 min), and is more beneficial to the use in a papermaking workshop.
2. The problem of uneven polymerization temperature of polyacrylamide is solved, the water solubility of the polymer is improved, polyacrylamide with various molecular weights and types can be produced, and the performance is good.
3. Improve the operating environment and solve the problem of peculiar smell in the workshop. During the polymerization reaction of the light gathering device, the ambient temperature is too high and reaches 40 ℃ in summer due to the use of high-power polymerization lamps (1000W each and 82 lamps). Meanwhile, the photopolymerization bed is an open device, and during polymerization reaction, the odor of the raw materials AM and DAC is diffused into a workshop at high temperature to form strong peculiar smell, so that nerve numbness or dizziness of workers can be easily caused when the photopolymerization bed works in the environment for a long time.
4. The energy consumption is reduced.
Drawings
FIG. 1 is a diagram of an apparatus for producing cationic polyacrylamide.
Detailed Description
Example 1
With reference to fig. 1, a device for producing cationic polyacrylamide has the following specific structure:
the material mixing device comprises a material mixing tank 1, wherein the bottom of the material mixing tank 1 is connected with a feeding port of a polymerization kettle 4, a discharging port of the polymerization kettle 4 is connected with a feeding port of a high-pressure granulator 3, an outlet of the high-pressure granulator 3 is connected with a roller dryer 6 through a first fan 5, the roller dryer 6 is connected with a vibration drying bed 20 through a fourth fan 10, the vibration drying bed 20 is connected with a vibration sieve 21 through a tenth fan 22 and a material outlet of a fourth cyclone dust collector 17, and the vibration sieve 21 is connected with a first flour mill 23 and a second flour mill 25;
all the parts are connected through pipelines;
a chemical pump 2 is arranged on a connecting pipeline of the batching tank 1 and the polymerization kettle 4;
the upper part of the roller dryer 6 is connected with the inlet of a first cyclone dust collector 9 through a second fan 7, and the outlet of the first cyclone dust collector 9 is connected with the atmosphere through a fifth fan 11;
the upper part of the roller dryer 6 is connected with a first heat exchanger 18 through a third fan 8;
a second heat exchanger 19 is arranged above the vibration drying bed 20, and the second heat exchanger 19 is connected with the atmosphere through an eighth fan 14;
the upper part of the vibration drying bed 20 is connected with the inlet of the second cyclone dust collector 15 through a seventh fan 13,
an outlet of the second cyclone dust collector 15 is connected with an inlet of a third cyclone dust collector 16, an outlet of the second cyclone dust collector 15 is connected with an outlet of a fourth cyclone dust collector 17, and an outlet of the third cyclone dust collector 16 is connected with the atmosphere through a sixth fan 12;
the material outlet of the first mill 23 is connected with the inlet of the fourth cyclone dust collector 17 through an eleventh fan 24.
Example 2
The production process of the cationic polyacrylamide comprises the following specific steps:
1) adding acrylamide aqueous solution, cationic monomer and water into a batching tank 1, adjusting the pH of the mixture to 2-4, and adjusting the temperature to 2 ℃;
2) inputting the product obtained in the step 1) into a polymerization kettle 4 by the power of a chemical pump 2, sequentially adding an initiator and a chelating agent after nitrogen is deoxidized, adjusting the temperature to 3-5 ℃, carrying out polymerization reaction to form a polymerized colloid, and after the temperature is kept for 2 hours, feeding the colloid into a high-pressure granulator 3 for granulation;
3) the product obtained in the step 2) enters a drum dryer 6 through a first fan 5 for primary drying, and then is conveyed to a vibration drying bed 20 through a fourth fan 10 for final drying;
4) the product of the step 3) enters the fourth cyclone dust collector 17 through the tenth fan 22 and then enters the vibrating screen 21, and after screening, the particles with different particle sizes enter the first mill 23 and the second mill 25 respectively.
Example 3
A production device of cationic polyacrylamide has the following specific structure:
the material mixing device comprises a material mixing tank 1, wherein the bottom of the material mixing tank 1 is connected with a feeding port of a polymerization kettle 4, a discharging port of the polymerization kettle 4 is connected with a feeding port of a high-pressure granulator 3, an outlet of the high-pressure granulator 3 is connected with a roller dryer 6 through a first fan 5, the roller dryer 6 is connected with a vibration drying bed 20 through a fourth fan 10, the vibration drying bed 20 is connected with a vibration sieve 21 through a tenth fan 22 and a material outlet of a fourth cyclone dust collector 17, and the vibration sieve 21 is connected with a first flour mill 23 and a second flour mill 25;
all the parts are connected through pipelines;
a chemical pump 2 is arranged on a connecting pipeline of the batching tank 1 and the polymerization kettle 4;
the upper part of the roller dryer 6 is connected with the inlet of a first cyclone dust collector 9 through a second fan 7, and the outlet of the first cyclone dust collector 9 is connected with the atmosphere through a fifth fan 11;
the upper part of the roller dryer 6 is connected with a first heat exchanger 18 through a third fan 8;
a second heat exchanger 19 is arranged above the vibration drying bed 20, and the second heat exchanger 19 is connected with the atmosphere through an eighth fan 14;
the upper part of the vibration drying bed 20 is connected with the inlet of the second cyclone dust collector 15 through a seventh fan 13,
an outlet of the second cyclone dust collector 15 is connected with an inlet of a third cyclone dust collector 16, an outlet of the second cyclone dust collector 15 is connected with an outlet of a fourth cyclone dust collector 17, and an outlet of the third cyclone dust collector 16 is connected with the atmosphere through a sixth fan 12;
the material outlet of the first mill 23 is connected with the inlet of the fourth cyclone dust collector 17 through an eleventh fan 24;
the process for producing the cationic polyacrylamide by the cationic polyacrylamide production device comprises the following specific steps:
1) adding acrylamide aqueous solution, cationic monomer and water into a batching tank 1, adjusting the pH of the mixture to 2-4, and adjusting the temperature to 2 ℃;
2) inputting the product obtained in the step 1) into a polymerization kettle 4 by the power of a chemical pump 2, sequentially adding an initiator and a chelating agent after nitrogen is deoxidized, adjusting the temperature to 3-5 ℃, carrying out polymerization reaction to form a polymerized colloid, and after the temperature is kept for 2 hours, feeding the colloid into a high-pressure granulator 3 for granulation;
3) the product obtained in the step 2) enters a drum dryer 6 through a first fan 5 for primary drying, and then is conveyed to a vibration drying bed 20 through a fourth fan 10 for final drying;
4) the product of the step 3) enters the fourth cyclone dust collector 17 through the tenth fan 22 and then enters the vibrating screen 21, and after screening, the particles with different particle sizes enter the first mill 23 and the second mill 25 respectively.
The particles with different particle sizes in the step 4) respectively enter a first grinding machine 23 and a second grinding machine 25, specifically, particles with particle sizes of less than 2mm enter the second grinding machine 25, and are ground into qualified products with particle sizes of less than or equal to 0.85 mm; the polyacrylamide colloid with the grain diameter being more than or equal to 2mm enters the first flour mill 23, the particles which are ground into the grain diameter being less than 2mm enter the second flour mill 25 again through the eleventh fan 24, the fourth cyclone dust collector 17 and the vibrating screen 21, and the ground particles are ground into the grain diameter being less than or equal to 0.85 mm;
the concentration of the acrylamide aqueous solution in the step 1) is 25 percent;
the monomer in the step 1) is acryloyloxyethyltrimethyl ammonium chloride, and the mass ratio of the acryloyloxyethyltrimethyl ammonium chloride to the acrylamide is 1: 9;
the mass ratio of the water in the step 1) to the acrylamide aqueous solution is 3:1-5: 1;
the initiator in the step 2) is azobisisobutyrimidazoline hydrochloride, the chelating agent is pentasodium diethylenetriaminepentaacetate, and the initiator and the chelating agent respectively account for 0.5 per mill and 0.5 per mill of the mass of the acrylamide;
the cyclone dust collector arranged in the device plays a role in dust removal;
the heat exchanger is used for drying the temperature inside the device.
The cationic polyacrylamide particles produced by the production process of the cationic polyacrylamide are applied to the aspect of papermaking wastewater treatment.
Example 4
The production process of the cationic polyacrylamide comprises the following specific steps:
1) 1 ton of 25 percent acrylamide aqueous solution, 28kg of acryloyloxyethyl trimethyl ammonium chloride and 3 tons of water are put into a proportioning tank 1, the pH value of the mixture is adjusted to 3, and the temperature is adjusted to 2 ℃;
2) inputting the product obtained in the step 1) into a polymerization kettle 4 by the power of a chemical pump 2, sequentially adding 0.5kg of azobisisobutyronitrile hydrochloride and 0.5kg of diethylenetriamine pentaacetic acid pentasodium after nitrogen is deoxidized, adjusting the temperature to 3-5 ℃, carrying out polymerization reaction to form a polymerization colloid, and after the temperature is kept for 2 hours, feeding the colloid into a high-pressure granulator 3 for granulation;
3) the product obtained in the step 2) enters a drum dryer 6 through a first fan 5 for primary drying, and then is conveyed to a vibration drying bed 20 through a fourth fan 10 for final drying;
4) the product obtained in the step 3) enters the fourth cyclone dust collector 17 through the tenth fan 22 and then enters the vibrating screen 21, after screening, the particles with the particle size of less than 2mm enter the second grinding mill 25, and the particles are ground into qualified products with the particle size of less than or equal to 0.85 mm; the polyacrylamide colloid with the grain diameter more than or equal to 2mm enters the first flour mill 23, the particles which are ground into the grain diameter less than 2mm enter the second flour mill 25 again through the eleventh fan 24, the fourth cyclone dust collector 17 and the vibrating screen 21, and the ground particles are ground into the grain diameter less than or equal to 0.85 mm.
Example 5
The production process of the cationic polyacrylamide comprises the following specific steps:
1) 1 ton of 25 percent acrylamide aqueous solution, 28kg of acryloyloxyethyl trimethyl ammonium chloride and 4 tons of water are put into a proportioning tank 1, the pH value of the mixture is adjusted to 4, and the temperature is adjusted to 2 ℃;
2) inputting the product obtained in the step 1) into a polymerization kettle 4 by the power of a chemical pump 2, sequentially adding 0.5kg of azobisisobutyronitrile hydrochloride and 0.5kg of diethylenetriamine pentaacetic acid pentasodium after nitrogen is deoxidized, adjusting the temperature to 3-5 ℃, carrying out polymerization reaction to form a polymerization colloid, and after the temperature is kept for 2 hours, feeding the colloid into a high-pressure granulator 3 for granulation;
3) the product obtained in the step 2) enters a drum dryer 6 through a first fan 5 for primary drying, and then is conveyed to a vibration drying bed 20 through a fourth fan 10 for final drying;
4) the product obtained in the step 3) enters the fourth cyclone dust collector 17 through the tenth fan 22 and then enters the vibrating screen 21, after screening, the particles with the particle size of less than 2mm enter the second grinding mill 25, and the particles are ground into qualified products with the particle size of less than or equal to 0.85 mm; the polyacrylamide colloid with the grain diameter more than or equal to 2mm enters the first flour mill 23, the particles which are ground into the grain diameter less than 2mm enter the second flour mill 25 again through the eleventh fan 24, the fourth cyclone dust collector 17 and the vibrating screen 21, and the ground particles are ground into the grain diameter less than or equal to 0.85 mm.
Table 1 shows the effect data of the cationic polyacrylamide prepared in example 5 on the treatment of wastewater
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The production device of the cationic polyacrylamide is characterized by comprising a dosing tank (1), wherein the bottom of the dosing tank (1) is connected with a feeding port of a polymerization kettle (4), a discharging port of the polymerization kettle (4) is connected with a feeding port of a high-pressure granulator (3), an outlet of the high-pressure granulator (3) is connected with a drum dryer (6) through a first fan (5), the drum dryer (6) is connected with a vibration drying bed (20) through a fourth fan (10), the vibration drying bed (20) is connected with a vibration sieve (21) through a tenth fan (22) through a fourth cyclone dust collector (17), and the vibration sieve (21) is connected with a first flour mill (23) and a second flour mill (25); all the parts are connected through pipelines.
2. The apparatus for producing cationic polyacrylamide according to claim 1, wherein the connecting pipeline between the dosing tank (1) and the polymerization kettle (4) is provided with a chemical pump (2).
3. The apparatus for producing cationic polyacrylamide according to claim 1, wherein the top of said drum dryer (6) is connected to the inlet of the first cyclone (9) through the second fan (7), and the outlet of the first cyclone (9) is connected to the atmosphere through the fifth fan (11).
4. The apparatus for producing cationic polyacrylamide according to claim 1, wherein the drum dryer (6) is connected to the first heat exchanger (18) via a third fan (8); a second heat exchanger (19) is arranged above the vibration drying bed (20), and the second heat exchanger (19) is connected with the atmosphere through an eighth fan (14); the upper part of the vibration drying bed (20) is connected with the inlet of the second cyclone dust collector (15) through a seventh fan (13).
5. The apparatus for producing cationic polyacrylamide according to claim 1, wherein the outlet of the second cyclone (15) is connected to the inlet of the third cyclone (16), the outlet of the second cyclone (15) is connected to the outlet of the fourth cyclone (17), and the outlet of the third cyclone (16) is connected to the atmosphere via the sixth fan (12).
6. The apparatus for producing cationic polyacrylamide according to claim 1, wherein the material outlet of the first mill (23) is connected to the inlet of the fourth cyclone (17) via an eleventh air blower (24).
7. The process for producing the cationic polyacrylamide by the production device of the cationic polyacrylamide according to claim 1 is characterized by comprising the following specific steps:
1) putting an acrylamide aqueous solution, a cationic monomer and water into a batching tank (1), adjusting the pH of the mixture to 2-4, and adjusting the temperature to 2 ℃;
2) inputting the product obtained in the step 1) into a polymerization kettle (4) by the power of a chemical pump (2), sequentially adding an initiator and a chelating agent after nitrogen is deoxidized, adjusting the temperature to 3-5 ℃, carrying out polymerization reaction to form a polymerized colloid, and after the temperature is kept for 2 hours, feeding the colloid into a high-pressure granulator 3 for granulation;
3) the product obtained in the step 2) enters a drum dryer (6) through a first fan (5) for primary drying, and then is conveyed to a vibration drying bed (20) through a fourth fan (10) for final drying;
4) and (3) enabling the product obtained in the step 3) to enter a fourth cyclone dust collector (17) through a tenth fan (22) and then enter a vibrating screen (21), and after screening, enabling particles with different particle sizes to respectively enter a first grinding machine (23) and a second grinding machine (25).
8. The production process of the cationic polyacrylamide according to claim 7, wherein the particles with different particle sizes in step 4) are respectively fed into a first mill (23) and a second mill (25), specifically, the particles with particle size of less than 2mm are fed into the second mill (25) and ground into qualified products with particle size of less than or equal to 0.85 mm; and the polyacrylamide colloid with the grain diameter being more than or equal to 2mm enters the first grinding machine (23), the particles ground into the grain diameter being less than 2mm enter the second grinding machine (25) again through the eleventh fan (24), the fourth cyclone dust collector (17) and the vibrating screen (21), and the ground particles are ground into the grain diameter being less than or equal to 0.85 mm.
9. The process for producing cationic polyacrylamide according to claim 7, wherein the concentration of the aqueous acrylamide solution in the step 1) is 25%; the monomer in the step 1) is acryloyloxyethyltrimethyl ammonium chloride, and the mass ratio of the acryloyloxyethyltrimethyl ammonium chloride to the acrylamide is 1: 9; the mass ratio of the water in the step 1) to the acrylamide aqueous solution is 3: 1; the initiator in the step 2) is azobisisobutyrimidazoline hydrochloride, the chelating agent is pentasodium diethylenetriaminepentaacetate, and the initiator and the chelating agent respectively account for 0.5 per mill and 0.5 per mill of the mass of the acrylamide.
10. The process for producing cationic polyacrylamide according to claim 7, wherein the cationic polyacrylamide particles produced by the process for producing cationic polyacrylamide are used for treating papermaking wastewater.
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| CN113021670A (en) * | 2021-03-08 | 2021-06-25 | 东营科创生物化工有限公司 | Device and method for producing polyacrylamide |
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| CN103319651A (en) * | 2013-05-28 | 2013-09-25 | 山东瑞特精细化工有限公司 | Method for synthesizing cation polyacrylamide P(AM-DAC) |
| CN207567152U (en) * | 2017-12-01 | 2018-07-03 | 爱森（中国）絮凝剂有限公司 | Cationic polyacrylamide production line |
| CN212222842U (en) * | 2020-04-08 | 2020-12-25 | 东营华泰清河实业有限公司 | Cationic polyacrylamide production device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319651A (en) * | 2013-05-28 | 2013-09-25 | 山东瑞特精细化工有限公司 | Method for synthesizing cation polyacrylamide P(AM-DAC) |
| CN207567152U (en) * | 2017-12-01 | 2018-07-03 | 爱森（中国）絮凝剂有限公司 | Cationic polyacrylamide production line |
| CN212222842U (en) * | 2020-04-08 | 2020-12-25 | 东营华泰清河实业有限公司 | Cationic polyacrylamide production device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021670A (en) * | 2021-03-08 | 2021-06-25 | 东营科创生物化工有限公司 | Device and method for producing polyacrylamide |
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