CN1079402C - Method for drying high molecular polymer colloid - Google Patents
Method for drying high molecular polymer colloid Download PDFInfo
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- CN1079402C CN1079402C CN99100054A CN99100054A CN1079402C CN 1079402 C CN1079402 C CN 1079402C CN 99100054 A CN99100054 A CN 99100054A CN 99100054 A CN99100054 A CN 99100054A CN 1079402 C CN1079402 C CN 1079402C
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Abstract
The present invention relates to a method for drying high molecular polymer colloid. In the method, high molecular polymer colloid is added in a granulator for granulating; then, the obtained matter is conveyed to a microwave heating device for drying. The microwave heating time of the present invention is less than 10 min; the present invention has the advantages of greatly shortening the drying time of the high molecular polymer colloid, reducing energy consumption, reducing the opportunity of material deterioration and increasing productive efficiency.
Description
The present invention relates to a kind of drying means of high molecular polymer colloid.
At present, be to adopt warm air drying or in kneader, heat convection drying to the most frequently used drying means of high molecular polymer colloid with chuck.Adopt far-infrared dryer to carry out drying as Qilu Petroleum Chemistry Co. Inst.; Changchun applied chemistry institute dissolves high molecular polymer colloid in water, behind organic solvent deposit, reusable heat is air-dry dry; Organic Chemical Plant has proposed fluidized desiccation technology for producing polyacrylamide in the south.The topmost shortcoming of these drying meanss is that time of drying is long, the energy consumption height, required equipment is huge, in order to get rid of the moisture in the drying products, need material to be heated for a long time and blast warm air, energy consumption height not only, and in the hot blast that the later stage of drying is discharged, often carry part high molecular polymer fine powder secretly, both polluted environment, its drying products rate of recovery is reduced.
The objective of the invention is long at above-mentioned time of drying, energy consumption is high, the shortcoming that product recovery rate is low, propose a kind of time of drying short, energy consumption is low, reduces the drying means of the high molecular polymer colloid of dry materials loss.
A kind of drying means of high molecular polymer colloid is characterized in that:
A. will add in the stirring granulating machine with the high molecular polymer colloid that aqueous solution polymerization obtains, obtain the particle of diameter less than 10mm through stirring-granulating;
B. the high molecular polymer colloid particle that obtains being hydrolyzed or adding weight ratio by the requirement of product is 1 ‰ conventional surfactant sapns;
C. then the high molecular polymerization colloidal solid is sent into and carried out drying in the microwave heating equipment, microwave heating time promptly obtained its drying products within 10 minutes.
To add with the high molecular polymer colloid that aqueous solution polymerization obtains in the stirring granulating machine, what the process stirring-granulating obtained is the particle of diameter less than 6mm.
Because the present invention has adopted technique scheme, to high molecular polymer colloid particle microwave heating time less than 10 minutes, thereby shortened time of drying of high molecular polymer colloid greatly, reduced energy consumption, reduce the rotten chance of material and the drying loss of material, improved production efficiency.
It is that the high molecular polymer colloid granule materials is after entering microwave heating equipment that the present invention adopts microwave heating equipment to carry out the exsiccant process, high molecular polymer colloid granule materials Semi-polarity molecule is along with the effect of radio-frequency field under the effect of micro-wave energy, fast vibration and produce heat energy, macromolecule glue compound colloidal solid temperature of charge is risen, moisture evaporation and drying.In general, the ability of object absorption microwave is relevant with the specific inductivity of object, and specific inductivity is big more, and the ability that absorbs microwave is big more, because other material of permittivity ratio of moisture is much bigger, so use the microwave heating equipment transpiring moisture, the drying efficiency height.In addition, because the penetrativity of micro-wave energy is stronger, the moisture of the moisture of interior of articles and body surface can be subjected to thermal evaporation simultaneously when microwave heating, and the exsiccant time just can shorten greatly, guaranteed that simultaneously product performance are stable, this point is even more important to high molecular polymer colloid particulate drying.During with common heat drying, the moisture of high molecular polymer colloid particle upper surface is evaporation earlier, generate the evaporation that the hard film of one deck seriously hinders the colloidal solid internal moisture, in order to evaporate its internal moisture, need to improve drying temperature and prolong time of drying, heating can make quality product reduce for a long time, and adopts microwave heating just can avoid this phenomenon.The high molecular polymer colloid particle; can adopt kneader granulation, screw extruder grain, pressure extrusion granulation etc.; according to different tablets presss and final product requirement; can add weight ratio before granulation or after the granulation and be 1 ‰ promoting agent sapn commonly used and inorganic salt and carry out pre-treatment; reduce high molecular polymer colloid particle adhesion phenomenon, can send into the microwave oven oil (gas) filling device and carry out drying.
Embodiment 1
With persulphate and sodium bisulfite redox system; acrylamide triggered aqueous solution polymerization; obtain high molecular polymer colloid; be put in the WH-2 stirring granulating machine after getting the conventional surfactant sapn that the 1000g high molecular polymer colloid adds 1g; obtain diameter less than 6mm high molecular polymer colloid particle through stirring-granulating, and put in the NE-6790 microwave oven 2 fens clock times of microwave heating; obtain its drying products, its product performance see Table one, table two.
Embodiment 2
With persulphate and S-WAT redox system; acrylamide triggered aqueous solution polymerization; obtain high molecular polymer colloid, get 1000g high molecular polymer colloid and 40gNaOH, join simultaneously in the WH-2 stirring granulating machine; through stirring the hydrolysis granulation; obtain the high molecular polymer colloid particle of diameter, and put in the NE-6790 microwave oven, 2 fens clock times of microwave heating less than 6mm; obtain its drying products, its product performance see Table one, table two.
Embodiment 3
With persulphate and S-WAT redox system; acrylamide triggered and dimethylaminoethyl acrylate methyl amine second fat methyl chloride salt brine solution copolymerization; obtain the co-polymer colloid; getting its co-polymer colloid joins in the WH-2 stirring granulating machine; obtain the polymer copolymerization compound colloidal solid of diameter through stirring-granulating, and put in the NE-6790 microwave oven 2 fens clock times of microwave heating less than 6mm; obtain its drying products, its product performance see Table one, table two.
Reference examples
Get respectively with embodiment 1, embodiment 2, embodiment 3 and make polymeric colloid 1000g particle, put into heat drying in the hot-air oven, need 1 hour time of heating just can make its drying products under 90 ℃ of temperature, its product performance also see Table one, table two.
Table 1
| Colloidal solid (η) ml/g | (η) ml/g behind the micro-wave drying | (η) ml/g after the warm air drying | |
| Embodiment 1 | 887 | 867 | 830 |
| Embodiment 2 | 1186 | 1138 | 1128 |
| Embodiment 3 | 751 | 749 | 720 |
Table 2
| The colloidal solid solvability | Behind the micro-wave drying | After the warm air drying | |
| Embodiment 1 | All dissolvings | All dissolvings | Have on a small quantity and do not dissolve |
| Embodiment 2 | All dissolvings | All dissolvings | All dissolvings |
| Embodiment 3 | All dissolvings | All dissolvings | Have on a small quantity and do not dissolve |
Claims (2)
1. the drying means of a high molecular polymer colloid is characterized in that:
A. will add in the stirring granulating machine with the high molecular polymer colloid that aqueous solution polymerization obtains, obtain the particle of diameter less than 10mm through stirring-granulating;
B. the high molecular polymer colloid particle that obtains being hydrolyzed or adding weight ratio by the requirement of product is 1% conventional surfactant sapn;
C. then the high molecular polymer colloid particle is sent into and carried out drying in the microwave heating equipment, microwave heating time promptly obtained its drying products within 10 minutes.
2. the drying means of a kind of high molecular polymer colloid according to claim 1 is characterized in that: will add with the high molecular polymer colloid that aqueous solution polymerization obtains in the stirring granulating machine, what obtain through stirring-granulating is the particle of diameter less than 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99100054A CN1079402C (en) | 1999-01-04 | 1999-01-04 | Method for drying high molecular polymer colloid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99100054A CN1079402C (en) | 1999-01-04 | 1999-01-04 | Method for drying high molecular polymer colloid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1231297A CN1231297A (en) | 1999-10-13 |
| CN1079402C true CN1079402C (en) | 2002-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99100054A Expired - Fee Related CN1079402C (en) | 1999-01-04 | 1999-01-04 | Method for drying high molecular polymer colloid |
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| CN (1) | CN1079402C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475692B (en) * | 2009-01-12 | 2011-06-01 | 上海华谊丙烯酸有限公司 | Prilling process for high hydroscopicity resin hydrogel polymer |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE432357T1 (en) * | 2002-01-22 | 2009-06-15 | Biomatera Inc | METHOD FOR DRYING BIODEGRADABLE POLYMERS |
| CN102373342A (en) * | 2011-10-27 | 2012-03-14 | 扬州高能新材料有限公司 | Purification method for waste arsenic materials |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101431A (en) * | 1986-03-01 | 1987-09-16 | 齐鲁石油化工公司研究院 | The far-infrared drying method of polyacrylamide gel particles |
| CN1057059A (en) * | 1990-06-04 | 1991-12-18 | 中国科学院长春应用化学研究所 | The preparation of high molecular anion type polycrylamide |
-
1999
- 1999-01-04 CN CN99100054A patent/CN1079402C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101431A (en) * | 1986-03-01 | 1987-09-16 | 齐鲁石油化工公司研究院 | The far-infrared drying method of polyacrylamide gel particles |
| CN1057059A (en) * | 1990-06-04 | 1991-12-18 | 中国科学院长春应用化学研究所 | The preparation of high molecular anion type polycrylamide |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475692B (en) * | 2009-01-12 | 2011-06-01 | 上海华谊丙烯酸有限公司 | Prilling process for high hydroscopicity resin hydrogel polymer |
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| Publication number | Publication date |
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| CN1231297A (en) | 1999-10-13 |
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Owner name: BAIYIN NONFERROUS METALS GROUP CO., LTD. Free format text: FORMER NAME: BAIYIN NON-FERROUS METALS CORP. |
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Address after: 730900 No. 70 Friendship Road, Gansu, Baiyin Patentee after: Baiyin Nonferrous Metal Group Co., Ltd. Address before: 730900 No. 70 Friendship Road, Gansu, Baiyin Patentee before: Baiyin Non-Ferrous Metals Corp. |
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Granted publication date: 20020220 Termination date: 20180104 |