CN109053954A - A kind of visible light Photoreactor and its application method being exclusively used in cationic polyacrylamide polymerization - Google Patents
A kind of visible light Photoreactor and its application method being exclusively used in cationic polyacrylamide polymerization Download PDFInfo
- Publication number
- CN109053954A CN109053954A CN201810553307.2A CN201810553307A CN109053954A CN 109053954 A CN109053954 A CN 109053954A CN 201810553307 A CN201810553307 A CN 201810553307A CN 109053954 A CN109053954 A CN 109053954A
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- Prior art keywords
- transparent panel
- visible light
- cover board
- photoreactor
- cationic polyacrylamide
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- 125000002091 cationic group Chemical group 0.000 title claims abstract description 52
- 229920002401 polyacrylamide Polymers 0.000 title claims abstract description 44
- 238000006116 polymerization reaction Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 82
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 44
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 10
- 230000005661 hydrophobic surface Effects 0.000 claims abstract description 6
- 239000000975 dye Substances 0.000 claims description 29
- 239000000084 colloidal system Substances 0.000 claims description 19
- 229920000098 polyolefin Polymers 0.000 claims description 16
- 239000003999 initiator Substances 0.000 claims description 11
- 229920000728 polyester Polymers 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 9
- 238000003801 milling Methods 0.000 claims description 8
- 238000012216 screening Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 229920006267 polyester film Polymers 0.000 claims description 6
- 239000000178 monomer Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract description 7
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 description 30
- 239000000047 product Substances 0.000 description 27
- -1 polypropylene Polymers 0.000 description 21
- 239000010408 film Substances 0.000 description 18
- 238000001556 precipitation Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000005286 illumination Methods 0.000 description 8
- 239000008399 tap water Substances 0.000 description 8
- 235000020679 tap water Nutrition 0.000 description 8
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 7
- 125000000217 alkyl group Chemical group 0.000 description 7
- 230000007423 decrease Effects 0.000 description 7
- 238000010907 mechanical stirring Methods 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 6
- CBSOFSBFHDQRLV-UHFFFAOYSA-N N-methylbenzylamine hydrochloride Chemical compound [Cl-].C[NH2+]CC1=CC=CC=C1 CBSOFSBFHDQRLV-UHFFFAOYSA-N 0.000 description 6
- 238000013019 agitation Methods 0.000 description 6
- 229920006317 cationic polymer Polymers 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000002834 transmittance Methods 0.000 description 6
- 239000003643 water by type Substances 0.000 description 6
- 125000003545 alkoxy group Chemical group 0.000 description 5
- 238000004043 dyeing Methods 0.000 description 5
- 239000013049 sediment Substances 0.000 description 5
- 238000012719 thermal polymerization Methods 0.000 description 5
- IHXWECHPYNPJRR-UHFFFAOYSA-N 3-hydroxycyclobut-2-en-1-one Chemical compound OC1=CC(=O)C1 IHXWECHPYNPJRR-UHFFFAOYSA-N 0.000 description 4
- XKXHCNPAFAXVRZ-UHFFFAOYSA-N benzylazanium;chloride Chemical compound [Cl-].[NH3+]CC1=CC=CC=C1 XKXHCNPAFAXVRZ-UHFFFAOYSA-N 0.000 description 4
- 238000005660 chlorination reaction Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005189 flocculation Methods 0.000 description 4
- 230000016615 flocculation Effects 0.000 description 4
- 230000008676 import Effects 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 150000008366 benzophenones Chemical class 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000003311 flocculating effect Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 239000012965 benzophenone Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 125000001424 substituent group Chemical group 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- JNGRENQDBKMCCR-UHFFFAOYSA-N 2-(3-amino-6-iminoxanthen-9-yl)benzoic acid;hydrochloride Chemical compound [Cl-].C=12C=CC(=[NH2+])C=C2OC2=CC(N)=CC=C2C=1C1=CC=CC=C1C(O)=O JNGRENQDBKMCCR-UHFFFAOYSA-N 0.000 description 1
- NVXPGYQFMHYZPB-UHFFFAOYSA-N CCCl(C)(C)(C)OC(=O)C=C Chemical compound CCCl(C)(C)(C)OC(=O)C=C NVXPGYQFMHYZPB-UHFFFAOYSA-N 0.000 description 1
- 101100493820 Caenorhabditis elegans best-1 gene Proteins 0.000 description 1
- 229920000858 Cyclodextrin Polymers 0.000 description 1
- 241001062009 Indigofera Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 125000004106 butoxy group Chemical group [*]OC([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 150000003983 crown ethers Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- ZBQZBWKNGDEDOA-UHFFFAOYSA-N eosin B Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC([N+]([O-])=O)=C(O)C(Br)=C1OC1=C2C=C([N+]([O-])=O)C(O)=C1Br ZBQZBWKNGDEDOA-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- MCPLVIGCWWTHFH-UHFFFAOYSA-L methyl blue Chemical compound [Na+].[Na+].C1=CC(S(=O)(=O)[O-])=CC=C1NC1=CC=C(C(=C2C=CC(C=C2)=[NH+]C=2C=CC(=CC=2)S([O-])(=O)=O)C=2C=CC(NC=3C=CC(=CC=3)S([O-])(=O)=O)=CC=2)C=C1 MCPLVIGCWWTHFH-UHFFFAOYSA-L 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- MYFATKRONKHHQL-UHFFFAOYSA-N rhodamine 123 Chemical compound [Cl-].COC(=O)C1=CC=CC=C1C1=C2C=CC(=[NH2+])C=C2OC2=CC(N)=CC=C21 MYFATKRONKHHQL-UHFFFAOYSA-N 0.000 description 1
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 1
- 229940043267 rhodamine b Drugs 0.000 description 1
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical compound O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- FZGRPBJBMUNMQH-UHFFFAOYSA-N trimethyl-$l^{3}-chlorane Chemical compound CCl(C)C FZGRPBJBMUNMQH-UHFFFAOYSA-N 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- C08F220/10—Esters
- C08F220/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
- B01J19/122—Incoherent waves
- B01J19/127—Sunlight; Visible light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C08F2/00—Processes of polymerisation
- C08F2/01—Processes of polymerisation characterised by special features of the polymerisation apparatus used
-
- 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
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to organic synthesis apparatus fields, a kind of visible light Photoreactor and its application method for being exclusively used in cationic polyacrylamide polymerization is disclosed, which includes the two panels transparent panel for being located at front and rear sides, two panels side plate, a piece of bottom plate positioned at bottom and a piece of cover board positioned at top for being located at the left and right sides；Side plate, transparent panel, bottom plate and cover board are encircled into a confined space；The inner surface of the transparent panel is equipped with transparent hydrophobic film；The side plate, bottom plate, cover board medial surface be hydrophobic surface；Bottom plate is equipped with nitrogen inlet；Cover board is equipped with nitrogen outlet；The upper end spacing of two panels transparent panel is greater than lower end spacing.Photoreactor of the invention is designed specifically for cationic polyacrylamide, easy to operate, and discharging is easy；And the Photoreactor heat exchange is easy, increasing extent of temperature is small compared with large-size reactor, and material properties consistency is high.
Description
Technical field
The present invention relates to organic synthesis apparatus field more particularly to it is a kind of be exclusively used in cationic polyacrylamide polymerization can
Light-exposed Photoreactor and its application method.
Background technique
Dyeing sewage is than industrial wastewater difficult to deal with, long processing period, and at high cost, sludge quantity is big, is processed
The discharge of journey foul smell is serious, and the waste water after biochemical treatment is extremely difficult to discharge standard.To find out its cause, mainly most of dyestuff is to micro-
Biology has toxicity, and death during handling dyestuff of most of microorganism becomes sludge.Not yet occur so far effective
Method solves, and therefore, the new function material that development can effectively remove dyestuff in dyeing and printing sewage is important project.
Although cationic polyacrylamide is a kind of efficient flocculant, cation polypropylene acyl so far
For amine due to having a single function, phase transition ability is inadequate, can only remove some dyes in the small sewage of salinity, and in salinity height
When can not flocculate at all, exist simultaneously the inflection point of usage amount, that is, it is very accurate to require to be added flocculant, more and lacked all
It is not all right, cause the product not to be available in this field.It therefore, can not only be thorough there is an urgent need to design a kind of novel material
The dyestuff in the dyeing and printing sewage under any salinity is removed, while amount be added being required not require precisely, allows slightly mistake
Amount is realized in production in sewage in the continually changing situation of dye strength, is remained to stabilization and is effectively removed dyestuff in water.
In production technology, most of polymerization of cationic polyacrylamide is being reacted using redox system
Static polymerization is used in kettle, colloid is first synthesized, is granulated, dried, be milled after extrusion, is sieved, packaging.Since cation is poly-
Acrylamide has very strong adhesion strength, is not easy to squeeze out in a kettle, and colloid is caused to glue wall, and residue glue influences the matter of subsequent product
Amount.Simultaneously as reaction kettle size is larger, reactive polymeric heat is not easy to exchange, and reaction system is stepped up with reaction process temperature,
It is formed by polymer molecular weight to gradually reduce, directly affects the molecular weight of product.Therefore, colloid in polymerization process is solved to squeeze out
Problem and reaction heat problem are the key that one of to improve commodity quality.
In addition, if can generate ozone using common uv photopolymerization technology, influence environment and health, will also result in
Functional monomer is destroyed in the course of the polymerization process, is to solve the problems, such as possible approach using visible light polymerization technology therefore.
Summary of the invention
The visible of cationic polyacrylamide polymerization is exclusively used in order to solve the above-mentioned technical problems, the present invention provides a kind of
Light Photoreactor and its application method, Photoreactor of the invention are designed specifically for cationic polyacrylamide, operation letter
Just, discharging is easy；And the Photoreactor heat exchange is easy, increasing extent of temperature is small compared with large-size reactor, and material properties is consistent
Property it is high.
The specific technical proposal of the invention is: a kind of visible light light reaction for being exclusively used in cationic polyacrylamide polymerization
Device, including being located at the two panels transparent panel of front and rear sides, the two panels side plate for being located at the left and right sides, positioned at a piece of of bottom
Bottom plate and a piece of cover board positioned at top；Side plate, transparent panel, bottom plate and cover board are encircled into a confined space；The transparent panel
Inner surface be equipped with transparent hydrophobic film；The side plate, bottom plate, cover board medial surface be hydrophobic surface；Bottom plate be equipped with nitrogen into
Mouthful；Cover board is equipped with nitrogen outlet；The upper end spacing of two panels transparent panel is greater than lower end spacing.
Visible light Photoreactor of the invention is that special design is synthesized for cationic polyacrylamide, and transparent panel is as visible
Light illumination window is covered with hydrophobic and very poor with cationic polyacrylamide cohesive force polyolefin or polyester on inner surface
Film, so that reaction product is easy to fall off.The bottom plate of Photoreactor has the nitrogen inlet of check-valves, can lead to High Purity Nitrogen；Cover board
It is equipped with the nitrogen outlet that can be inserted into thermocouple or temperature detector and seal, guarantees that oxygen will not enter in reaction process.
Further, the transparent hydrophobic film is hydrophobic polyolefin film or hydrophobic polyester film.
Further, the transparent panel is optical flat.
Optionally, the material of the side plate, bottom plate and cover board is hydrophobic polyolefin or hydrophobic polyester.
Optionally, the side plate, bottom plate and cover board are steel plate, and medial surface is equipped with hydrophobic polyolefin film or hydrophobic polyester is thin
Film.
Further, the ratio of the upper end spacing Yu lower end spacing of two panels transparent panel is less than or equal to 5: 1.
The viscosity of cationic polyacrylamide is very high, although the present invention will be in transparent panel and side plate, bottom plate and cover board
Lateral layout is hydrophobic surface, but while discharging after the reaction remains difficult smoothly to make cationic polyacrylamide to take off from hydrophobic surface
It falls, transparent panel is designed as trapezoidal to be conducive to discharging by the present invention thus.Also, it is sent out by the further research of team of the present invention
Existing, when by the Ratio control of the upper end spacing of two panels transparent panel and lower end spacing within the above range, discharging is relatively easy to.
Further, the ratio of the upper end spacing Yu lower end spacing of two panels transparent panel is 5: 3,4: 3 or 2: 1.
By it is of the present invention team further study show that, by the ratio of the upper end spacing of two panels transparent panel and lower end spacing
In above-mentioned ratio, discharging is easy the most for control.
Further, the upper end spacing of two panels transparent panel is no more than 50cm.
Further, two panels side plate is arranged in parallel, parallel respectively between the upper end of two panels transparent panel, lower end.
Further, the cover board is detachable.
The present invention also provides a kind of method using above-mentioned visible light Photoreactor preparation cationic polyacrylamide, packets
Include following steps:
1) the four kinds of monomer AM, AE1, AE2 and AE3 of cationic polyacrylamide are soluble in water, addition is dissolved visible in advance
Photosensitive dye or the radical initiator dissolved in advance and visible light photoactivated dyestuff, are transferred in visible light Photoreactor,
Logical nitrogen 30-50min；
2) 20-40min is irradiated with the transparent panel of the LED light the past rear side Wavelength matched with dyestuff, after temperature no longer rises, protected
Irradiation 20-40 seconds is held, polymerization reaction is completed, and is opened cover board, is inverted Photoreactor, is led to nitrogen from reactor bottom plate, is taken out nature
The colloid to fall off；
3) it to obtained granulating from colloid, is dried at 40~70 DEG C, obtains cationic polyacrylamide flocculant agent after milling screening.
Wherein, the molecular formula general formula of obtained cationic polyacrylamide flocculant agent are as follows:
Wherein, in above-mentioned general formula:
Four kinds of monomers use AM, AE1, AE2 respectively, and AE3 is indicated.
R1、R2、R3For hydrogen atom, alkyl, alkoxy or substituted-phenyl, R1, R2, R3For identical or different substitution
Base.
M, the summation of n, h and f are 1, m=0.1-0.9, n=0.1-0.9, h=0-0.7, f=0-0.7.
Under stiring present invention finished product obtained, it is dissolved in tap water by 0.1% concentration, 20 minutes completely molten
Solution, with suction pipe draw cationic flocculant solution, be added slowly with stirring in dyeing and printing sewage, while be added dropwise while observe, always plus
It is transparent to become sewage to sewage, and there are a large amount of colored precipitates to be precipitated, that is, knows the amount of polymer required for decolourizing completely, continues
The 20~50% of the amount are added, flocculate increases, but not occurs flocculate weight as product common currently on the market
New scattered state.It is filtered to remove flocculate, filtrate is as clear as crystal.
Further, the substituent group of the substituted-phenyl is o-, m-, contraposition alkyl or alkoxy.
Further, the substituent group of the substituted-phenyl is o-, m-, contraposition alkyl or alkoxy.The R2It is disubstituted
Or polysubstituted phenyl, disubstituted phenyl have following general formula:
In above-mentioned general formula, R4, R5, R6, R7, R8For alkyl or alkoxy.
Further, the alkyl is alkyl of the carbon atom less than 6；The alkoxy is alcoxyl of the carbon atom number less than 6
Base.
Further, the alkyl is methyl, ethyl, propyl, isopropyl, normal-butyl, tert-butyl or amyl；The alcoxyl
Base is methoxyl group, ethyoxyl, propoxyl group, butoxy or amoxy.
Further, m 0.2-0.5, n 0.2-0.5, h 0.1-0.3, f 0-0.2.
Further, in step 1), the radical initiator is water-soluble azo class compound, Modified benzophenone class water
The supermolecule initiator that soluble initiator or cyclodextrin, crown ether inclusion oil-soluble initiator are constituted.
Further, the visible light photoactivated dyestuff is the water-soluble squaraine dye with following general formula:
Wherein, it in above-mentioned general formula, when n=1~3, n=1, is named as SQ1, when n=2, is named as SQ2, when n=1, be named as
SQ3。
Further, the visible light photoactivated dyestuff is the water-soluble cyclanone dyestuff with following general formula:
Wherein, in above-mentioned general formula, n=1-3；M=1-3；As m=1, n=1,2,3 dyestuff is respectively designated as CB-1, CB-2,
CB-3；As m=2, n=1,2,3 dyestuff is respectively designated as CP-1, CP-2, CP-3；As m=3, n=1,2,3 dyestuff
It is respectively designated as CH-1, CH-2, CH-3.
Further, the visible light photoactivated dyestuff is selected from methyl blue, Eosin B, rhodamine B, Rhodamine 123, rhodamine
110。
It is compared with the prior art, the beneficial effects of the present invention are:
1, Photoreactor of the invention is designed specifically for cationic polyacrylamide, and reactor is easy to operate, and discharging is easy；
2, Photoreactor heat exchange of the invention is easy, and increasing extent of temperature is small compared with large-size reactor, material properties consistency
It is high；
3, the reaction process of Photoreactor of the invention is shorter than existing polymerizer technology polymerization time, high-efficient；
4, flocculant made from Photoreactor of the present invention has the ability for efficiently removing dyestuff in dyeing and printing sewage；
5, flocculant made from Photoreactor of the present invention has very high salt resistance ability；
6, flocculant made from Photoreactor of the present invention can suitably be added, and be not in flocculate dispersion again；
7, flocculant made from Photoreactor of the present invention is ternary or quarternary copolymerized, is dissolved, flocculation ability is strong；
8, flocculant made from Photoreactor of the present invention uses visible light polymerization, and process will not ozone generation pollution；
9, visible light of the present invention is selected matches LED illumination with sensitizing dyestuff wavelength, saves production process energy consumption.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention；
Fig. 2 is a kind of structural schematic diagram of transparent panel of the present invention；
Fig. 3 is the influence relationship comparison diagram of the additive amount of flocculant and penetration by liquid rate in clear water；
Fig. 4 is the additive amount of flocculant and the influence relationship comparison diagram of liquid turbidity in simulation sewage.
Appended drawing reference are as follows: transparent panel 1, side plate 2, bottom plate 3, cover board 4, transparent hydrophobic film 5, nitrogen inlet 6, nitrogen outlet 7.
Specific embodiment
The present invention will be further described with reference to the examples below.
Total embodiment
A kind of visible light Photoreactor being exclusively used in cationic polyacrylamide polymerization, the two panels including being located at front and rear sides
Transparent panel, two panels side plate, a piece of bottom plate positioned at bottom and a piece of cover board positioned at top for being located at the left and right sides；Side
Plate, transparent panel, bottom plate and cover board are encircled into a box shaped confined space；The inner surface of the transparent panel is equipped with transparent dredge
Moisture film；The side plate, bottom plate, cover board medial surface be hydrophobic surface；Bottom plate is equipped with nitrogen inlet；Cover board goes out equipped with nitrogen
Mouthful；The upper end spacing of two panels transparent panel is greater than lower end spacing.
Optionally, the transparent hydrophobic film is hydrophobic polyolefin film or hydrophobic polyester film.
Optionally, the transparent panel is optical flat.
Optionally, the material of the side plate, bottom plate and cover board is hydrophobic polyolefin or hydrophobic polyester.
Optionally, the side plate, bottom plate and cover board are steel plate, and medial surface is equipped with hydrophobic polyolefin film or hydrophobic polyester is thin
Film.
Optionally, the ratio of the upper end spacing Yu lower end spacing of two panels transparent panel is less than or equal to 5: 1.
Optionally, the ratio of the upper end spacing Yu lower end spacing of two panels transparent panel is 5: 3,4: 3 or 2: 1.
Optionally, the upper end spacing of two panels transparent panel is no more than 50cm.
Optionally, two panels side plate is arranged in parallel, parallel respectively between the upper end of two panels transparent panel, lower end.
Optionally, the cover board is detachable.
Embodiment 1
As shown in Figure 1, 2, a kind of visible light Photoreactor being exclusively used in cationic polyacrylamide polymerization, including before being located at
The two panels transparent panel 1 (optical flat) of two sides, the two panels side plate 2 for being located at the left and right sides, a piece of bottom positioned at bottom afterwards
Plate 3 and a piece of cover board 4 positioned at top.Wherein, two panels side plate is arranged in parallel, between the upper end of two panels transparent panel, lower end respectively
In parallel.Side plate, transparent panel, bottom plate and cover board are encircled into a box shaped confined space, and cover board is detachable.
The inner surface of the transparent panel is equipped with transparent hydrophobic film 5 (hydrophobic polyolefin)；The side plate, bottom plate, cover board
Material is hydrophobic polyolefin；Bottom plate is equipped with nitrogen inlet 6；Cover board is equipped with nitrogen outlet 7；The upper end spacing of two panels transparent panel
Greater than lower end spacing, the upper end spacing of ratio 5: 3, and two panels transparent panel is 50cm.
The polymerization of cationic polyacrylamide:
(1) by 720g (10.0mol, 40%) acrylamide, 1950g (10.0mol, 40%) acrylyl oxy-ethyl-trimethyl chlorination
Ammonium, 1423g (5mol, 20%) acryloxyethyldimethyl are dissolved in 17 liters of deionized waters, to complete methylbenzyl ammonium chloride
After fully dissolved, the squaraine dye 6.8g of initiator azo diisobutyl ether hydrochloride 1.35g and above-mentioned code name SQ1 is added, imports and holds
Product is in 20 liters of Photoreactor, leads to nitrogen 40 minutes at 25 DEG C, and the LED light source for being then 650nm with wavelength is before and after two
After the transparent panel of side irradiates 26 minutes, thermometer displays temperature is 43 degree, and temperature is begun to decline after being further continued for irradiation 30 seconds, is stopped
Illumination, opens cover board, is inverted Photoreactor, leads to nitrogen from reactor bottom, takes out the colloid that nature falls off.Use colloid granulating machine
It is granulated, partial size 3-8mm.65 DEG C of baking ovens are put into, are completely dried after three hours, milling screening obtains cationic polymer flocculation
Agent powder-product.
(2) above-mentioned cationic flocculant powder-product 0.1g is taken, is dissolved in 100mL tap water, mechanical stirring is after ten minutes
It is completely dissolved, is taken on a small quantity with dropper, the 100mL print works production being placed in 250mL beaker in advance is added under electromagnetic agitation
Line flows out in sewage, a large amount of Precipitations when 8.5mL is added, sewage is from muddy ashes discoloration at colorless and transparent, filtering, removing
Sediment, the colorless and transparent sewage of gained light transmittance at 500nm is 97%.
Embodiment 2
A kind of visible light Photoreactor being exclusively used in cationic polyacrylamide polymerization, the two panels including being located at front and rear sides
Transparent panel (optical flat), be located at the left and right sides two panels side plate, positioned at a piece of bottom plate of bottom and positioned at top
A piece of cover board.Wherein, two panels side plate is arranged in parallel, parallel respectively between the upper end of two panels transparent panel, lower end.Side plate, transparent panel,
Bottom plate and cover board are encircled into a box shaped confined space, and cover board is detachable.
The inner surface of the transparent panel is equipped with transparent hydrophobic film (hydrophobic polyester)；The material of the side plate, bottom plate, cover board
For hydrophobic polyester；Bottom plate is equipped with nitrogen inlet；Cover board is equipped with nitrogen outlet；The upper end spacing of two panels transparent panel is greater than lower end
The upper end spacing of spacing, ratio 4: 3, and two panels transparent panel is 40cm.
The polymerization of cationic polyacrylamide:
(1) by 360g (5mol, 16.7%) acrylamide, 3100g (15mol, 50%) methylacryoyloxyethyl trimethyl chlorine
Change ammonium, 2705g (10mol, 33.3%) acrylyl oxy-ethyl two is dissolved in 25 liters of deionized waters, to complete benzyl ammonium chloride
After dissolution, the cycloalkane ketone dyes 1.80g of initiator B PQ0.8g and above-mentioned code name CP-1 is added, imports the light that volume is 30 liters
In reactor, leads at 25 DEG C nitrogen 40 minutes, then shone with the LED light source that wavelength is 560nm from the transparent panel of two front and back sides
After penetrating 22 minutes, thermometer displays temperature is 48 degree, and temperature is begun to decline after continuing irradiation 30 seconds, stops illumination, opens lid
Plate is inverted Photoreactor, leads to nitrogen from reactor bottom, takes out the colloid that nature falls off.It is granulated with colloid granulating machine, partial size is
3-8mm.60 DEG C of baking ovens are put into, are completely dried after three hours, milling screening obtains cationic polymer flocculent powder-product.
(2) above-mentioned cationic flocculant powder-product 0.1g is taken, is dissolved in 100mL tap water, mechanical stirring is after ten minutes
It is completely dissolved, is taken on a small quantity with dropper, it is raw that the 100mL cotton dye-works being placed in 250mL beaker in advance is added under electromagnetic agitation
Producing line flows out in sewage, and a large amount of Precipitations when 3.0mL are added, and sewage becomes colorless and transparent from the black-and-blue of muddiness, continues to add
Enter 2.0mL, there is colourless Precipitation, filter, remove sediment, the colorless and transparent sewage of gained light transmittance at 500nm is
98%.
Embodiment 3
A kind of visible light Photoreactor being exclusively used in cationic polyacrylamide polymerization, the two panels including being located at front and rear sides
Transparent panel (optical flat), be located at the left and right sides two panels side plate, positioned at a piece of bottom plate of bottom and positioned at top
A piece of cover board.Wherein, two panels side plate is arranged in parallel, parallel respectively between the upper end of two panels transparent panel, lower end.Side plate, transparent panel,
Bottom plate and cover board are encircled into a box shaped confined space, and cover board is detachable.
The inner surface of the transparent panel is equipped with transparent hydrophobic film (hydrophobic polyolefin)；The side plate, bottom plate, cover board it is interior
Side is equipped with hydrophobic polyolefin film；Bottom plate is equipped with nitrogen inlet；Cover board is equipped with nitrogen outlet；The upper end of two panels transparent panel
It is 30cm that spacing, which is greater than lower end spacing, ratio 2: 1, and the upper end spacing of two panels transparent panel,.
The polymerization of cationic polyacrylamide:
(1) by 1440g (20mol, 55%) acrylamide, 1945g (10mol, 27.8%) acrylyl oxy-ethyl-trimethyl chlorination
Ammonium, 1423g (5mol, 13.9%) acryloxyethyldimethyl is to methylbenzyl ammonium chloride, 270.5g (1.0mol, 2.8%)
Acrylyl oxy-ethyl ether is dissolved in 20 liters of deionized waters benzyl ammonium chloride (AE3 monomer), until completely dissolved, is added and causes
The squaraine dye 1.0g of agent azo diisobutyl ether hydrochloride 0.24g and above-mentioned code name SQ1 import the Photoreactor that volume is 30 liters
In, lead at 25 DEG C nitrogen 40 minutes, then irradiates 26 points from the transparent panel of two front and back sides with the LED light source that wavelength is 650nm
Zhong Hou, thermometer displays temperature are 35 degree, and temperature is begun to decline after continuing irradiation 30 seconds, stops illumination, open cover board, are inverted
Photoreactor leads to nitrogen from reactor bottom, takes out the colloid that nature falls off.It is granulated with colloid granulating machine, partial size 3-8mm.
60 DEG C of baking ovens are put into, are completely dried after three hours, milling screening obtains cationic polymer flocculent powder-product.
(2) above-mentioned cationic flocculant powder-product 0.1g is taken, is dissolved in 100mL tap water, mechanical stirring is after ten minutes
It is completely dissolved, is taken on a small quantity with dropper, the 100mL dye-works production line being placed in 250mL beaker in advance is added under electromagnetic agitation
It flows out in sewage, a large amount of Precipitations when 5.0mL is added, sewage becomes colorless and transparent from muddy black, filters, and removes precipitating
Object, the colorless and transparent sewage of gained light transmittance at 500nm is 96%.
Embodiment 4
A kind of visible light Photoreactor being exclusively used in cationic polyacrylamide polymerization, the two panels including being located at front and rear sides
Transparent panel (optical flat), be located at the left and right sides two panels side plate, positioned at a piece of bottom plate of bottom and positioned at top
A piece of cover board.Wherein, two panels side plate is arranged in parallel, parallel respectively between the upper end of two panels transparent panel, lower end.Side plate, transparent panel,
Bottom plate and cover board are encircled into a box shaped confined space, and cover board is detachable.
The inner surface of the transparent panel is equipped with transparent hydrophobic film (hydrophobic polyester)；The inside of the side plate, bottom plate, cover board
Face is equipped with hydrophobic polyester film；Bottom plate is equipped with nitrogen inlet；Cover board is equipped with nitrogen outlet；The upper end spacing of two panels transparent panel
Greater than lower end spacing, the upper end spacing of ratio 5: 1, and two panels transparent panel is 50cm.
The polymerization of cationic polyacrylamide:
(1) by 216g (3.0mol, 10%) acrylamide, 2925g (15.0mol, 50%) acrylyl oxy-ethyl-trimethyl chlorination
Ammonium, 1991.5g (7mol, 23.3%) acryloxyethyldimethyl to methylbenzyl ammonium chloride, 1352.5g (5mol,
16.7%) acryloxyethyldimethyl is dissolved in 25 liters of deionized waters methylbenzyl ammonium chloride, until completely dissolved, is added
The squaraine dye 4.5g of Benzophenones initiator QTX 2.3g and above-mentioned code name SQ2 are imported in the Photoreactor that volume is 30 liters,
Lead at 25 DEG C nitrogen 40 minutes, is then irradiated 28 minutes with the LED light source that wavelength is 650nm from the transparent panel of two front and back sides
Afterwards, thermometer displays temperature is 41 degree, and temperature is begun to decline after continuing irradiation 30 seconds, stops illumination, opens cover board, is inverted light
Reactor leads to nitrogen from reactor bottom, takes out the colloid that nature falls off.It is granulated with colloid granulating machine, partial size 3-8mm.It puts
Enter 60 DEG C of baking ovens, be completely dried after three hours, milling screening obtains cationic polymer flocculent powder-product.
(2) above-mentioned cationic flocculant powder-product 0.1g is taken, is dissolved in 100mL tap water, mechanical stirring is after ten minutes
It is completely dissolved, is taken on a small quantity with dropper, the 100mL print works production being placed in 250mL beaker in advance is added under electromagnetic agitation
Line flows out in sewage, a large amount of Precipitations when 8.5mL is added, sewage is from muddy ashes discoloration at colorless and transparent, filtering, removing
Sediment, the colorless and transparent sewage of gained light transmittance at 500nm is 99%.
Embodiment 5
A kind of visible light Photoreactor being exclusively used in cationic polyacrylamide polymerization, the two panels including being located at front and rear sides
Transparent panel (optical flat), be located at the left and right sides two panels side plate, positioned at a piece of bottom plate of bottom and positioned at top
A piece of cover board.Wherein, two panels side plate is arranged in parallel, parallel respectively between the upper end of two panels transparent panel, lower end.Side plate, transparent panel,
Bottom plate and cover board are encircled into a box shaped confined space, and cover board is detachable.
The inner surface of the transparent panel is equipped with transparent hydrophobic film (hydrophobic polyolefin)；The side plate, bottom plate, cover board it is interior
Side is equipped with hydrophobic polyolefin film；Bottom plate is equipped with nitrogen inlet；Cover board is equipped with nitrogen outlet；The upper end of two panels transparent panel
It is 40cm that spacing, which is greater than lower end spacing, ratio 1.1: 1, and the upper end spacing of two panels transparent panel,.
The polymerization of cationic polyacrylamide:
(1) by 3600g (50mol, 83.3%) acrylamide, 972.5g (5mol, 8.3%) acrylyl oxy-ethyl-trimethyl chlorination
Ammonium, 811.5g (3mol, 5%) acryloxyethyldimethyl is to benzyl ammonium chloride, 569g (2mol, 3.33%) methacryl
Oxygen ethyl two is dissolved in 23 liters of deionized waters methylbenzyl ammonium chloride, until completely dissolved, initiator Benzophenones is added and draw
The cycloalkane ketone dyes 0.80g of agent BTC 2.0g and above-mentioned code name CH-1 are sent out, is imported in the Photoreactor that volume is 30 liters,
Lead to nitrogen 40 minutes at 25 DEG C, after the LED light source for being then 530nm with wavelength irradiates 25 minutes from the transparent panel of two front and back sides,
Thermometer displays temperature is 50 degree, and temperature is begun to decline after continuing irradiation 30 seconds, stops illumination, and it is anti-to open cover board, inversion light
Device is answered, leads to nitrogen from reactor bottom, takes out the colloid that nature falls off.It is granulated with colloid granulating machine, partial size 3-8mm.It is put into
60 DEG C of baking ovens, are completely dried after three hours, and milling screening obtains cationic polymer flocculent powder-product.
(2) above-mentioned cationic flocculant powder-product 0.1g is taken, is dissolved in 100mL tap water, mechanical stirring is after ten minutes
It is completely dissolved, is taken on a small quantity with dropper, it is raw that the 100mL cotton dye-works being placed in 250mL beaker in advance is added under electromagnetic agitation
Producing line flows out in sewage, and a large amount of Precipitations when 5.0mL are added, and sewage becomes colorless and transparent from the black-and-blue of muddiness, continues to add
Enter 2.0mL, there is colourless Precipitation, filter, remove sediment, the colorless and transparent sewage of gained light transmittance at 500nm is
94%.
Embodiment 6
A kind of visible light Photoreactor being exclusively used in cationic polyacrylamide polymerization, the two panels including being located at front and rear sides
Transparent panel (optical flat), be located at the left and right sides two panels side plate, positioned at a piece of bottom plate of bottom and positioned at top
A piece of cover board.Wherein, two panels side plate is arranged in parallel, parallel respectively between the upper end of two panels transparent panel, lower end.Side plate, transparent panel,
Bottom plate and cover board are encircled into a box shaped confined space, and cover board is detachable.
The inner surface of the transparent panel is equipped with transparent hydrophobic film (hydrophobic polyester)；The inside of the side plate, bottom plate, cover board
Face is equipped with hydrophobic polyester film；Bottom plate is equipped with nitrogen inlet；Cover board is equipped with nitrogen outlet；The upper end spacing of two panels transparent panel
Greater than lower end spacing, the upper end spacing of ratio 10-2: 1, and two panels transparent panel is 45cm.
The polymerization of cationic polyacrylamide:
(1) by 1800g (25mol, 48.1%) acrylamide, 3890g (20mol, 38.5%) acrylyl oxy-ethyl-trimethyl chlorine
Change ammonium, 1352.5g (5mol, 9.6%) acryloxyethyldimethyl is to benzyl ammonium chloride, 569g (2mol, 3.8%) methyl-prop
Alkene acyloxyethyl two is dissolved in 23 liters of deionized waters methylbenzyl ammonium chloride, until completely dissolved, is added without any initiator,
But the cycloalkane ketone dyes 1.80g of above-mentioned code name CP-1 is added, it imports in the Photoreactor that volume is 35 liters, leads at 25 DEG C
Nitrogen 40 minutes, for the LED light source for being then 560nm with wavelength after the transparent panel of two front and back sides irradiation 25 minutes, thermometer was aobvious
Temperature displaying function is 45 degree, and temperature is begun to decline after continuing irradiation 30 seconds, stops illumination, cover board, inversion Photoreactor is opened, from anti-
It answers device bottom to lead to nitrogen, takes out the colloid that nature falls off.It is granulated with colloid granulating machine, partial size 3-8mm.60 DEG C of baking ovens are put into,
It is completely dried after three hours, milling screening obtains cationic polymer flocculent powder-product.
(2) above-mentioned cationic flocculant powder-product 0.1g is taken, is dissolved in 100mL tap water, mechanical stirring is after ten minutes
It is completely dissolved, is taken on a small quantity with dropper, it is raw that the 100mL cotton dye-works being placed in 250mL beaker in advance is added under electromagnetic agitation
Producing line flows out in sewage, and a large amount of Precipitations when 5.0mL are added, and sewage becomes colorless and transparent from the black-and-blue of muddiness, continues to add
Enter 2.0mL, there is colourless Precipitation, filter, remove sediment, the colorless and transparent sewage of gained light transmittance at 500nm is
96%.
Comparative test 1: flocculant effect experiment is excessively added in clear water
Commercially available best brand 1 is taken, each 0.1g of flocculant 3 acquired in the product 2 and embodiment 1 that thermal polymerization obtains is commonly used, is dissolved in
In 100mL tap water, it is completely dissolved after twenty minutes under mechanical stirring.Take the different a certain amount of vulcanizations for being added drop-wise to 5000mg/L
In indigo plant simulation sewage, flocculation sedimentation falls flocculate, the hydrophilic transmission surveyed at 500nm with ultraviolet specrophotometer with filter-cloth filtering
Rate.As a result as shown in Figure 3: can significantly find out from figure, after 0.5mL is added, commercially available best commodity 1 can be removed partially
Sulfur blue, transmitance 80%.Product 2 prepared by traditional thermal polymerization technology, transmitance reach 86%, and the present invention prepares flocculation
Agent is 94%.Flocculant, commercially available best 1 transmitance of product decline are continuously added, 2 transmitance of thermal polymerization product is risen, this
It invents prepared flocculant to remain basically stable, is maintained at 95%.It is reached a certain level when excessively, it is commercially available preferably to produce when 2.0mL is added
Product flocculating effect sharply declines, and transmitance drops to 40%, and thermal polymerization product and flocculant of the present invention still keep 90% or more.
Comparative test 2: salt tolerant experiment
Product used and operation are identical with comparative test 1, and simulation sewage is changed into the sulfur blue of 5000mg/L 4%
In sodium chloride brine, each cationic flocculant that 0.3mL is added, commercially available best product does not flocculate completely, and thermal polymerization product 2 can be with
Part removes pollutant, and 3 flocculating effect of flocculant prepared by the present invention is preferable.Wadding body and clear water according to comparative test 1 method
After separation, the turbidity of clear water is surveyed.As a result as shown in Figure 4: flocculant 3 prepared by the present invention has very excellent salt resistant character, together
When have excessive be added and keep good flocculating effect ability.
Raw materials used in the present invention, equipment is unless otherwise noted the common raw material, equipment of this field；In the present invention
Method therefor is unless otherwise noted the conventional method of this field.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way, it is all according to the present invention
Technical spirit any simple modification, change and equivalent transformation to the above embodiments, still fall within the technology of the present invention side
The protection scope of case.
Claims (10)
1. a kind of visible light Photoreactor for being exclusively used in cationic polyacrylamide polymerization, it is characterised in that: including being located at
The two panels transparent panel (1) of front and rear sides, be located at the left and right sides two panels side plate (2), positioned at bottom a piece of bottom plate (3) and
A piece of cover board (4) positioned at top；Side plate, transparent panel, bottom plate and cover board are encircled into a confined space；The transparent panel it is interior
Side surface is equipped with transparent hydrophobic film (5)；The side plate, bottom plate, cover board medial surface be hydrophobic surface；Bottom plate is equipped with nitrogen inlet
(6)；Cover board is equipped with nitrogen outlet (7)；The upper end spacing of two panels transparent panel is greater than lower end spacing.
2. a kind of visible light Photoreactor for being exclusively used in cationic polyacrylamide polymerization as described in claim 1, feature
Be: the transparent hydrophobic film is hydrophobic polyolefin film or hydrophobic polyester film.
3. a kind of visible light Photoreactor for being exclusively used in cationic polyacrylamide polymerization as claimed in claim 1 or 2, special
Sign is: the transparent panel is optical flat.
4. a kind of visible light Photoreactor for being exclusively used in cationic polyacrylamide polymerization as described in claim 1, feature
Be: the material of the side plate, bottom plate and cover board is hydrophobic polyolefin or hydrophobic polyester.
5. a kind of visible light Photoreactor for being exclusively used in cationic polyacrylamide polymerization as claimed in claim 1 or 2, special
Sign is: the side plate, bottom plate and cover board are steel plate, and medial surface is equipped with hydrophobic polyolefin film or hydrophobic polyester film.
6. a kind of visible light Photoreactor for being exclusively used in cationic polyacrylamide polymerization as described in claim 1, feature
Be: the upper end spacing of two panels transparent panel and the ratio of lower end spacing is less than or equal to 5:1.
7. a kind of visible light Photoreactor for being exclusively used in cationic polyacrylamide polymerization as claimed in claim 6, feature
Be: the ratio of the upper end spacing of two panels transparent panel and lower end spacing is 5:3,4:3 or 2:1.
8. a kind of visible light Photoreactor for being exclusively used in cationic polyacrylamide polymerization as claimed in claims 6 or 7, special
Sign is: the upper end spacing of two panels transparent panel is no more than 50cm.
9. a kind of visible light Photoreactor for being exclusively used in cationic polyacrylamide polymerization as described in claim 1 or 6 or 7,
It is parallel respectively between the upper end of two panels transparent panel, lower end it is characterized by: two panels side plate is arranged in parallel.
10. a kind of application side for the visible light Photoreactor for being exclusively used in cationic polyacrylamide polymerization as described in claim 1
Method, it is characterised in that the following steps are included:
1) monomer of cationic polyacrylamide is soluble in water, the visible light photoactivated dyestuff dissolved in advance or molten in advance is added
The radical initiator of solution and visible light photoactivated dyestuff, are transferred in visible light Photoreactor, lead to nitrogen 30-50min；
2) 20-40min is irradiated with the transparent panel of the LED light the past rear side Wavelength matched with dyestuff, after temperature no longer rises, protected
Irradiation 20-40 seconds is held, polymerization reaction is completed, and is opened cover board, is inverted Photoreactor, is led to nitrogen from reactor bottom plate, is taken out nature
The colloid to fall off；
3) it to obtained granulating from colloid, is dried at 40 ~ 70 DEG C, obtains cationic polyacrylamide flocculant agent after milling screening.
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