CN104109214A - A manufacturing technological process of polyacrylamide - Google Patents
A manufacturing technological process of polyacrylamide Download PDFInfo
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- 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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- polyacrylamide
- acrylamide solution
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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.
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| CN201410256647.0A CN104109214A (en) | 2014-06-10 | 2014-06-10 | A manufacturing technological process of polyacrylamide |
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| CN201410256647.0A CN104109214A (en) | 2014-06-10 | 2014-06-10 | A manufacturing technological process of polyacrylamide |
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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 | Resin composition for forming low-reflection hard coat film |
| 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 | Resin composition for forming low-reflection hard coat film |
| 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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Application publication date: 20141022 |