CN104109214A - A manufacturing technological process of polyacrylamide - Google Patents
A manufacturing technological process of polyacrylamide Download PDFInfo
- Publication number
- CN104109214A CN104109214A CN201410256647.0A CN201410256647A CN104109214A CN 104109214 A CN104109214 A CN 104109214A CN 201410256647 A CN201410256647 A CN 201410256647A CN 104109214 A CN104109214 A CN 104109214A
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- CN
- China
- Prior art keywords
- polyacrylamide
- acrylamide solution
- mentioned gained
- carry out
- granulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229920002401 polyacrylamide Polymers 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title abstract description 4
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000005469 granulation Methods 0.000 claims abstract description 14
- 230000003179 granulation Effects 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000006116 polymerization reaction Methods 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000002242 deionisation method Methods 0.000 claims description 4
- 238000006392 deoxygenation reaction Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 229910052736 halogen Inorganic materials 0.000 claims description 4
- 150000002367 halogens Chemical class 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000003999 initiator Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 238000005325 percolation Methods 0.000 claims description 4
- 238000010298 pulverizing process Methods 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- 238000007670 refining Methods 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- PLIKAWJENQZMHA-UHFFFAOYSA-N 4-aminophenol Chemical compound NC1=CC=C(O)C=C1 PLIKAWJENQZMHA-UHFFFAOYSA-N 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000003889 chemical engineering Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000000227 grinding Methods 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 238000003860 storage Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 229920003169 water-soluble polymer Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 2
- 125000003368 amide group Chemical group 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
A manufacturing technological process of polyacrylamide is disclosed and relates to the technical field of chemical engineering. The polyacrylamide is prepared by a step of preparing acrylonitrile, preparing an aqueous acrylamide solution from the acrylonitrile and water and polymerizing to obtain the polyacrylamide; and a step of performing to crude granulation, fine granulation, drying, screening, grinding, and packaging a finished product and putting into storage. Beneficial effects of the process are simple components, low cost, simple and convenient preparation, convenient operation, good using effects of prepared p-aminophenol, safety and reliability.
Description
Technical field
The present invention relates to chemical technology field, be specifically related to a kind of manufacturing process flow of polyacrylamide.
Background technology
Polyacrylamide is a kind of water-soluble polymers of line style, is one of most widely used kind in water-soluble polymer, has the multiple functions such as good thickening, flocculation, sedimentation, filtration, tackify, retention, purification.It can also extend many important derived product, of many uses in many industries such as oil, papermaking, water treatment, weaving.Polyacrylamide be acrylamide homopolymerization or the massfraction that forms with other monomer copolymerization in the general name of more than 50% linear water soluble polymer chemical, the special physicochemical property that it has, come from its molecular structure property.Owing to containing amide group in structural unit, be easy to form hydrogen bond, so that it has is good water-soluble.It is easily by grafting or crosslinked side chain or the cancellated multiple modifier of obtaining, and traditional p-aminophenol composition is comparatively complicated, and purity is lower, and preparation technology is numerous and diverse, is difficult to meet human's demand.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of purity high, prepares the manufacturing process flow of simple polyacrylamide.
Technical problem to be solved by this invention realizes by the following technical solutions:
A manufacturing process flow for polyacrylamide, is characterized in that: comprise following processing step,
A. choose standard compliant vinyl cyanide and after mixing for the ratio of 1:6.5-7.2, insert reaction vessel with pure water, and add catalyzer, be heated to 80 ℃-140 ℃, refining acrylamide solution;
B. above-mentioned gained acrylamide solution heating is purified, then carry out vacuum flashing, obtain the acrylamide solution of 38%-42% concentration;
C. the acrylamide solution of above-mentioned gained 38%-42% concentration is inserted to batching kettle, then, add resin deionization, fill nitrogen deoxygenation, extract pure acrylamide solution;
D. the pure acrylamide solution of above-mentioned gained is added to water and initiator is inserted polymerization tank, then, by halogen lamp rayed, carry out polyreaction, irradiation temperature to 75 ℃-79 ℃, the reaction times is 3.8-4.2 hour, polymerization generates polyacrylamide;
E. above-mentioned gained polyacrylamide is inserted to thick tablets press and carry out thick granulation, then, the polyacrylamide after thick granulation is inserted to thin tablets press and carry out thin granulation, obtain the polyacrylamide particle of 3-5mm;
F. above-mentioned gained polyacrylamide particle is inserted to revolution percolation machine and be dried, temperature is controlled at 95 ℃-100 ℃, then, then enters vibrated fluidized bed and is dried, and temperature is controlled at 75 ℃-80 ℃;
G. above-mentioned dried polyacrylamide particle is sieved through sieve apparatus, then enter pulverizing mill abrasive dust, last, packing warehouse-in.
Catalyst component in described step a is skeletal copper.
The invention has the beneficial effects as follows: component of the present invention is simple, cheap, easy to prepare simple, convenient operation, the p-aminophenol result of use of preparation is good, safe and reliable.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with specific embodiment, further set forth the present invention.
Embodiment 1
A manufacturing process flow for polyacrylamide, comprises following processing step,
A. choose standard compliant vinyl cyanide and after mixing for the ratio of 1:7.2, insert reaction vessel with pure water, and add skeletal copper catalyst, be heated to 140 ℃, refining acrylamide solution;
B. above-mentioned gained acrylamide solution heating is purified, then carry out vacuum flashing, obtain the acrylamide solution of 42% concentration;
C. the acrylamide solution of above-mentioned gained 42% concentration is inserted to batching kettle, then, add resin deionization, fill nitrogen deoxygenation, extract pure acrylamide solution;
D. the pure acrylamide solution of above-mentioned gained is added to water and initiator is inserted polymerization tank, then, by halogen lamp rayed, carry out polyreaction, irradiation temperature to 79 ℃, the reaction times is 4.2 hours, polymerization generates polyacrylamide;
E. above-mentioned gained polyacrylamide is inserted to thick tablets press and carry out thick granulation, then, the polyacrylamide after thick granulation is inserted to thin tablets press and carry out thin granulation, obtain the polyacrylamide particle of 5mm;
F. above-mentioned gained polyacrylamide particle is inserted to revolution percolation machine and be dried, temperature is controlled at 100 ℃, then, then enters vibrated fluidized bed and is dried, and temperature is controlled at 80 ℃;
G. above-mentioned dried polyacrylamide particle is sieved through sieve apparatus, then enter pulverizing mill abrasive dust, last, packing warehouse-in.
Embodiment 2
A manufacturing process flow for polyacrylamide, is characterized in that: comprise following processing step,
A. choose standard compliant vinyl cyanide and after mixing for the ratio of 1:6.8, insert reaction vessel with pure water, and add skeletal copper catalyst, be heated to 120 ℃, refining acrylamide solution;
B. above-mentioned gained acrylamide solution heating is purified, then carry out vacuum flashing, obtain the acrylamide solution of 40% concentration;
C. the acrylamide solution of above-mentioned gained 40% concentration is inserted to batching kettle, then, add resin deionization, fill nitrogen deoxygenation, extract pure acrylamide solution;
D. the pure acrylamide solution of above-mentioned gained is added to water and initiator is inserted polymerization tank, then, by halogen lamp rayed, carry out polyreaction, irradiation temperature to 77 ℃, the reaction times is 4 hours, polymerization generates polyacrylamide;
E. above-mentioned gained polyacrylamide is inserted to thick tablets press and carry out thick granulation, then, the polyacrylamide after thick granulation is inserted to thin tablets press and carry out thin granulation, obtain the polyacrylamide particle of 4mm;
F. above-mentioned gained polyacrylamide particle is inserted to revolution percolation machine and be dried, temperature is controlled at 97 ℃, then, then enters vibrated fluidized bed and is dried, and temperature is controlled at 77 ℃;
G. above-mentioned dried polyacrylamide particle is sieved through sieve apparatus, then enter pulverizing mill abrasive dust, last, packing warehouse-in.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. a manufacturing process flow for polyacrylamide, is characterized in that: comprise following processing step,
A. choose standard compliant vinyl cyanide and after mixing for the ratio of 1:6.5-7.2, insert reaction vessel with pure water, and add catalyzer, be heated to 80 ℃-140 ℃, refining acrylamide solution;
B. above-mentioned gained acrylamide solution heating is purified, then carry out vacuum flashing, obtain the acrylamide solution of 38%-42% concentration;
C. the acrylamide solution of above-mentioned gained 38%-42% concentration is inserted to batching kettle, then, add resin deionization, fill nitrogen deoxygenation, extract pure acrylamide solution;
D. the pure acrylamide solution of above-mentioned gained is added to water and initiator is inserted polymerization tank, then, by halogen lamp rayed, carry out polyreaction, irradiation temperature to 75 ℃-79 ℃, the reaction times is 3.8-4.2 hour, polymerization generates polyacrylamide;
E. above-mentioned gained polyacrylamide is inserted to thick tablets press and carry out thick granulation, then, the polyacrylamide after thick granulation is inserted to thin tablets press and carry out thin granulation, obtain the polyacrylamide particle of 3-5mm;
F. above-mentioned gained polyacrylamide particle is inserted to revolution percolation machine and be dried, temperature is controlled at 95 ℃-100 ℃, then, then enters vibrated fluidized bed and is dried, and temperature is controlled at 75 ℃-80 ℃;
G. above-mentioned dried polyacrylamide particle is sieved through sieve apparatus, then enter pulverizing mill abrasive dust, last, packing warehouse-in.
2. the manufacturing process flow of a kind of polyacrylamide according to claim 1, is characterized in that: the catalyst component in described step a is skeletal copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410256647.0A CN104109214A (en) | 2014-06-10 | 2014-06-10 | A manufacturing technological process of polyacrylamide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410256647.0A CN104109214A (en) | 2014-06-10 | 2014-06-10 | A manufacturing technological process of polyacrylamide |
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| Publication Number | Publication Date |
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| CN104109214A true CN104109214A (en) | 2014-10-22 |
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| CN201410256647.0A Pending CN104109214A (en) | 2014-06-10 | 2014-06-10 | A manufacturing technological process of polyacrylamide |
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| CN (1) | CN104109214A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109310972A (en) * | 2016-06-08 | 2019-02-05 | 罗伯特·博世有限公司 | Fluidized bed facility |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320645A (en) * | 2000-04-21 | 2001-11-07 | 郑永碧 | Process for preparing, purifying and testing medical hydrogel of polyacrylamide |
| JP2001316604A (en) * | 2000-04-28 | 2001-11-16 | Toppan Printing Co Ltd | Low reflection hard coat resin composition |
| CN101045818A (en) * | 2007-04-16 | 2007-10-03 | 昆明达克罗科技有限责任公司 | Engineering plastic formula applied in kitchen hood fitting and processing method |
| CN101121765A (en) * | 2007-09-25 | 2008-02-13 | 余荣和 | Method for preparing macromolecule cation polyacrylamide |
| CN101497220A (en) * | 2008-01-29 | 2009-08-05 | 李金喜 | Automatic feeding machine for waste and old plastic regeneration |
-
2014
- 2014-06-10 CN CN201410256647.0A patent/CN104109214A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320645A (en) * | 2000-04-21 | 2001-11-07 | 郑永碧 | Process for preparing, purifying and testing medical hydrogel of polyacrylamide |
| JP2001316604A (en) * | 2000-04-28 | 2001-11-16 | Toppan Printing Co Ltd | Low reflection hard coat resin composition |
| CN101045818A (en) * | 2007-04-16 | 2007-10-03 | 昆明达克罗科技有限责任公司 | Engineering plastic formula applied in kitchen hood fitting and processing method |
| CN101121765A (en) * | 2007-09-25 | 2008-02-13 | 余荣和 | Method for preparing macromolecule cation polyacrylamide |
| CN101497220A (en) * | 2008-01-29 | 2009-08-05 | 李金喜 | Automatic feeding machine for waste and old plastic regeneration |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109310972A (en) * | 2016-06-08 | 2019-02-05 | 罗伯特·博世有限公司 | Fluidized bed facility |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20141022 |