CN105111348A - Strongly-acidic cation exchange resin powder and preparation method thereof - Google Patents
Strongly-acidic cation exchange resin powder and preparation method thereof Download PDFInfo
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Abstract
The invention provides a strongly-acidic cation exchange resin powder for cation exchange membranes, which is composed of the following components in parts by weight: 73-93 parts of unsaturated alkyl (aryl) sulfonate, 7-27 parts of divinylbenzene, 0.5-0.85 part of n-dodecamercaptan, 0.5-4.5 parts of emulsifier NRS-10, 0.5-4.5 parts of emulsifier M-20S, 0.23-0.45 part of initiator, 8.3-20.7 parts of methanol and 160-460 parts of deionized water. The invention also provides a preparation method of the cation exchange resin powder, which comprises the following step: by using a water-soluble unsaturated alkyl (aryl) sulfonate monomer as a raw material and a divinyl monomer as a crosslinking agent, carrying out emulsion-precipitation polymerization by using the reactive emulsifier to prepare the strongly-acidic cation exchange resin white powder of which the average grain size is mainly 1-100 mu m and the sulfur content (S%) is 10.88-13.97%.
Description
Technical field
The invention belongs to chemical field, relate to a kind of Zeo-karb, specifically a kind of storng-acid cation exchange resin powder and preparation method thereof.
Background technology
The essence of ion-exchange membrane is a kind of membranaceous ion exchange resin, and it is made up of the removable ion on membranaceous macromolecular scaffold, fixed group and group.Membranaceous macromolecular scaffold is referred to as basement membrane, and it gives ionic membrane excellent physically stable performance.And the removable ion on fixed group and group has ion exchanging function, give the chemical functional that ionic membrane is different, as selective penetrated property, electroconductibility etc.Highly acidic cation exchange membrane is the class exchange membrane with active group sulfonic acid, it has strongly-acid, characteristic that ionizing power is strong, be widely used in various industrial circle, as: electroosmose process concentrates dilute hydrochloric acid or desalination, for the electrolytic film in chlorine industry, as the proton exchange membrane of fuel cell, water treatment etc.
Industrial cationic exchange membrane of preparing mainly adopts hot pressing formation process at present, after first the strongly-acid exchange resin powder of 100 ~ 300 μm and inert binder being mixed according to certain ratio, mixing in the bitubular or three roller presses, pull out the diaphragm that thickness is about 0.5mm again, then one deck screen cloth is respectively added at the upper and lower surface of film, hot pressing film forming near the softening temperature of inert binder.Its middle strong acidity exchange resin powder is that the sulfonic group Zeo-karb spherolite of crosslinked polystyrene series is pulverized and obtains.
Sulfonic group Zeo-karb crosslinked polystyrene-divinyl ball is introduced sulfonic group by the sulfurization of the strong oxidizers such as the vitriol oil, sulphur trioxide or oleum and makes.But, the ion exchange resin obtained after this traditional technology sulfonation, wherein containing have an appointment about 37% sulfuric acid, gradient dilution and the water cleaning slowly of different concns sulfuric acid must be used just to obtain finished product, and activity time is long, and the sulfuric acid and the water yield that consume different concns are large, and containing certain density sulfuric acid in the waste liquid produced, this waste liquid cannot be recycled, and can only discharge, and causes the pollution of environment and causes the wasting of resources.Sulfonate resin powder diameter after grinding is generally at 100 ~ 300 μm, and particle diameter and granularity are comparatively large, are unfavorable for mixing with inert binder.
Summary of the invention
For above-mentioned technical problem of the prior art, the invention provides a kind of storng-acid cation exchange resin powder and preparation method thereof, described this storng-acid cation exchange resin powder and preparation method thereof solve storng-acid cation exchange resin powder diameter of the prior art and granularity larger, be unfavorable for the technical problem mixed with inert binder, to solve containing a large amount of sulfuric acid in industrial effluent, the technical problem of contaminate environment simultaneously.
The invention provides a kind of storng-acid cation exchange resin powder, calculate by weight, its raw material composition and content as follows:
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 73 ~ 93 parts,
Vinylstyrene 7 ~ 27 parts,
N-dodecyl mereaptan 0.5 ~ 0.85 part,
Emulsifying agent NRS-100.5 ~ 4.5 part,
Emulsifying agent M-20S0.5 ~ 4.5 part,
Initiator 0.23 ~ 0.45 part,
Methyl alcohol 8.3 ~ 20.7 parts,
Deionized water 160 ~ 460 parts,
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are sodium p styrene sulfonate (SS) or 2-acrylamide-2-methyl-propane sulfonic acid sodium (AMPS); Described initiator is ammonium persulphate or Potassium Persulphate.
Further, calculate by weight, its raw material composition and content as follows:
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 93 parts,
Vinylstyrene 7 parts,
N-dodecyl mereaptan 0.5 part,
Emulsifying agent NRS-104.5 part,
Emulsifying agent M-20S0.5 part,
Initiator 0.45 part,
Methyl alcohol 20.7 parts,
Deionized water 160 parts,
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are sodium p styrene sulfonate (SS); Described initiator is Potassium Persulphate.
Further, calculate by weight, its raw material composition and content as follows:
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 90 parts,
Vinylstyrene 10 parts,
N-dodecyl mereaptan 0.62 part,
Emulsifying agent NRS-103.8 part,
Emulsifying agent M-20S1.2 part,
Initiator 0.41 part,
Methyl alcohol 18.3 parts,
Deionized water 193 parts,
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are 2-acrylamide-2-methyl-propane sulfonic acid sodium (AMPS); Described initiator is Potassium Persulphate.
Further, calculate by weight, its raw material composition and content as follows:
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 82 parts,
Vinylstyrene 18 parts,
N-dodecyl mereaptan 0.7 part,
Emulsifying agent NRS-102.6 part,
Emulsifying agent M-20S2.5 part,
Initiator 0.36 part,
Methyl alcohol 15.2 parts,
Deionized water 396 parts,
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are sodium p styrene sulfonate (SS); Described initiator is Potassium Persulphate.
Further, calculate by weight, its raw material composition and content as follows:
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 76 parts,
Vinylstyrene 24 parts,
N-dodecyl mereaptan 0.79 part,
Emulsifying agent NRS-101.4 part,
Emulsifying agent M-20S3.6 part,
Initiator 0.29 part,
Methyl alcohol 11.2 parts,
Deionized water 427 parts,
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are sodium p styrene sulfonate (SS); Described initiator is ammonium persulphate.
Further, calculate by weight, its raw material composition and content as follows:
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 73 parts,
Vinylstyrene 27 parts,
N-dodecyl mereaptan 0.85 part,
Emulsifying agent NRS-100.5 part,
Emulsifying agent M-20S4.5 part,
Initiator 0.23 part,
Methyl alcohol 8.3 parts,
Deionized water 460 parts,
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are sodium p styrene sulfonate (SS); Described initiator is Potassium Persulphate.
Present invention also offers the preparation method of above-mentioned a kind of storng-acid cation exchange resin powder, comprise the steps:
1) each raw material is taken according to parts by weight;
2) in a reaction vessel, add deionized water, emulsifying agent NRS-10, emulsifying agent MS-20, unsaturated alkyl sulfonate or unsaturated arylsulphonate, keep temperature 35 ~ 45 DEG C, stir, 10 ~ 30min;
3) add Vinylstyrene and n-dodecyl mereaptan again, treat that temperature rises to 65 ~ 80 DEG C and adds initiator, be warming up to 82 ~ 90 DEG C, and be incubated 100 ~ 150min;
4) drip methyl alcohol and keep backflow, after methyl alcohol dropwises, insulation 50 ~ 100min, then stops heating, cooling;
5) by milky muddy emulsion centrifugation, after isolated powder being added water stirring, centrifugation obtains product again;
6) this product is dry, obtain the storng-acid cation exchange resin powder that can be directly used in cationic exchange membrane.
Concrete, described centrifugal speed is 2000 ~ 3000r/min.
The present invention adopts the method for reactive emulsifier and emulsion-precipitation polymerization to prepare storng-acid cation exchange resin powder, water miscible unsaturated alkyl sulfonate or unsaturated aryl sulfonic acid salt monomer (itself has emulsification function) is selected to be raw material, be that linking agent carries out being polymerized directly introducing sulfonic acid group with di-vinyl monomers, realize single stage method and prepare Zeo-karb powder.Zeo-karb powder of the present invention has stronger ion-exchange capacity, can be directly used in and prepare highly acidic cation exchange membrane.
Reaction fundamental equation is as follows:
R-in above formula is ethenylphenyl, 2-acrylamide-2-methyl-propyl.Co-emulsifier is reactive emulsifier: NRS-10 is a kind of polyether thiourea hydrochlorate containing unsaturated group, and emulsifying agent M-20S is a kind of two alkyl sulfosuccinates salt containing unsaturated alkyl.Emulsifying agent NRS-10 and M-20S is commercial materials.Initiator is Potassium Persulphate (KPS), ammonium persulphate (APS).
What the present invention adopted due to raw material is unsaturated alkyl sulfonate or unsaturated arylsulphonate, therefore in storng-acid cation exchange resin powder, most of repeating unit is all connected with ion-exchange group, makes sulfonic acid group distribution density large and evenly; Owing to the addition of auxiliary reactive emulsifier, therefore emulsify well, particle size is little, and specific surface area is large.Under the condition of the sulfonic acid group of equivalent, compared with the storng-acid cation exchange resin prepared with traditional technique, a kind of storng-acid cation exchange resin powder of the present invention has higher ion-exchanging efficiency.
Present invention improves over traditional preparation technology, mainly change process for sulfonation, preferably resolve in traditional technology safety problem that strong oxidizers such as using the vitriol oil, sulphur trioxide and oleum brings and the pickling of exchange resin gradient, washing produces the pollution problem and water resource waste problem that a large amount of spent acid causes.Get rid of the sulfonation link in storng-acid cation exchange resin traditional processing technology thus, comprise the sulfonation operation of sulfonation workshop, sulfonation equipment and operator.
A kind of storng-acid cation exchange resin powder of the present invention is based on median size 1 μm and 100 μm, less than the sulfonate resin powder diameter after tradition grinding, specific surface is large, narrow distribution, can be well-balanced be distributed in the binding agent of inertia, the cationic exchange membrane of preparation is not easy to produce shedding, containing under identical S% condition, has higher exchange efficiency.This toner can be directly used in prepares highly acidic cation exchange membrane, the method environmental protection.
The present invention compares with prior art, and its technical progress is significant.Toner of the present invention with water miscible unsaturated alkyl sulfonate or unsaturated aryl sulfonic acid salt monomer for raw material, take di-vinyl monomers as linking agent, prepare median size based on the powder of 1 μm and 100 μm by the emulsion-precipitation polymerization of reactive emulsifier, sulphur content (S%) scope is the storng-acid cation exchange resin white powder of 10.88 ~ 13.97%.Preparation method of the present invention has got rid of sulfonation and process of lapping in traditional cation exchange membrane function feed preparation process, do not re-use there is strong oxidizing property the vitriol oil, oleum, chlorsulfonic acid as sulfonated reagent, solve a large amount of spent acid in traditional technology and discharge the problem of environmental pollution and production safety problem that bring.
Accompanying drawing explanation
Fig. 1 is storng-acid cation exchange resin powder diameter distribution curve.
Fig. 2 is the infared spectrum of storng-acid cation exchange resin powder, and A is the strong-acid ion exchange resin for the preparation of cationic exchange membrane in industry; B is that the present invention prepares storng-acid cation exchange resin powder by emulsion method.
Embodiment
In conjunction with specific embodiments, the present invention is further described, but the invention is not restricted to embodiment.
The present invention's various raw materials used are commercially available conventional raw material.
Mastersizer2000 laser particle analyzer is adopted to carry out sreen analysis to storng-acid cation exchange resin powder.
Nicolet380 type infrared spectrometer is adopted to carry out infrared analysis to above-mentioned storng-acid cation exchange resin powder.
EA3000 elemental analyser is adopted to carry out sulphur content (S%) analysis to above-mentioned storng-acid cation exchange resin powder;
Loading capacity (IEC/meq/q) available sulphur content (S%) calculates, and its method of calculation are IEC=(S*10)/32.
embodiment 1
A kind of storng-acid cation exchange resin powder, calculates by weight, its raw material composition and content as follows:
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 93 parts
Vinylstyrene 7 parts
N-dodecyl mereaptan 0.5 part
Emulsifying agent NRS-104.5 part
Emulsifying agent M-20S0.5 part
Initiator 0.45 part
Methyl alcohol 20.7 parts
Deionized water 160 parts
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are sodium p styrene sulfonate (SS); Described initiator is Potassium Persulphate.
The preparation method of above-mentioned a kind of storng-acid cation exchange resin powder, specifically comprises the steps:
In the four-necked bottle that electric mixer, thermometer, prolong and dropping funnel are housed, add 160g deionized water, 4.5g emulsifying agent NRS-10,0.5g emulsifying agent MS-20 and 93g sodium p styrene sulfonate, keep temperature 40 DEG C to stir 20min; Add 7g Vinylstyrene and 0.5g n-dodecyl mereaptan again, treat that temperature rises to 77 DEG C and adds 0.45g Potassium Persulphate, be slowly warmed up to 85 DEG C, and be incubated 125min; Drip 20.7g methyl alcohol and reflux (dripping off in 1.5h); After methyl alcohol dropwises, insulation 80min; Then heating is stopped, cooling.By centrifugal for milky muddy emulsion (centrifugal speed is 2500r/min), isolated precipitation powder adds water and to stir after 20min more centrifugal (centrifugal speed is 2500r/min); Dry 5h under the condition of 75 DEG C, obtains the storng-acid cation exchange resin powder that can be directly used in cationic exchange membrane.
Mastersizer2000 laser particle analyzer is adopted to carry out sreen analysis to storng-acid cation exchange resin powder.The size-grade distribution collection of illustrative plates of gained as shown in Figure 1.Shown in above-mentioned particle size distribution figure, can find out that the storng-acid cation exchange resin powder of preparation is based on median size 1 μm and 100 μm.
Adopt Nicolet380 type infrared spectrometer to carry out infared spectrum analysis to above-mentioned storng-acid cation exchange resin powder, the infared spectrum of gained as shown in Figure 2.As can be seen from above-mentioned infared spectrum: in accompanying drawing 2, the infrared curve of B and the infrared curve functional group of A match, at 1191cm
-1and 1037cm
-1neighbouring absorption peak is sulfonate-SO
3 -1asymmetric and symmetrical stretching vibration peak, at 1600cm
-1, 1496cm
-1phenyl ring charateristic avsorption band, at 836cm
-1be that phenyl ring two replaces contraposition absorption peak, the storng-acid cation exchange resin powder that therefore prepared by the present invention has identical structure with the strong-acid ion exchange resin for the preparation of cationic exchange membrane in industry.
embodiment 2
A kind of storng-acid cation exchange resin powder, calculates by weight, its raw material composition and content as follows:
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 90 parts
Vinylstyrene 10 parts
N-dodecyl mereaptan 0.62 part
Emulsifying agent NRS-103.8 part
Emulsifying agent M-20S1.2 part
Initiator 0.41 part
Methyl alcohol 18.3 parts
Deionized water 193 parts
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are 2-acrylamide-2-methyl-propane sulfonic acid sodium (AMPS); Described initiator is Potassium Persulphate.
The preparation method of above-mentioned a kind of storng-acid cation exchange resin powder, specifically comprises the steps:
In the four-necked bottle that electric mixer, thermometer, prolong and dropping funnel are housed, add 193g deionized water, 3.8g emulsifying agent NRS-10,1.2g emulsifying agent MS-20 and 90g2-acrylamide-2-methyl-propane sulfonic acid sodium, keep temperature 40 DEG C to stir 20min; Add 10g Vinylstyrene and 0.62g n-dodecyl mereaptan again, treat that temperature rises to 77 DEG C and adds 0.41g Potassium Persulphate, be slowly warmed up to 85 DEG C, and be incubated 125min; Drip 18.3g methyl alcohol and reflux (dripping off in 1.5h); After methyl alcohol dropwises, insulation 80min; Then heating is stopped, cooling.By centrifugal for milky muddy emulsion (centrifugal speed is 2500r/min), isolated precipitation powder adds water and to stir after 20min more centrifugal (centrifugal speed is 2500r/min); Dry 5h under the condition of 75 DEG C, obtains the storng-acid cation exchange resin powder that can be directly used in cationic exchange membrane.
embodiment 3
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 82 parts
Vinylstyrene 18 parts
N-dodecyl mereaptan 0.7 part
Emulsifying agent NRS-102.6 part
Emulsifying agent M-20S2.5 part
Initiator 0.36 part
Methyl alcohol 15.2 parts
Deionized water 396 parts
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are sodium p styrene sulfonate (SS); Described initiator is Potassium Persulphate.
The preparation method of above-mentioned a kind of storng-acid cation exchange resin powder, specifically comprises the steps:
In the four-necked bottle that electric mixer, thermometer, prolong and dropping funnel are housed, add 396g deionized water, 2.6g emulsifying agent NRS-10,2.5g emulsifying agent MS-20 and 82g sodium p styrene sulfonate, keep temperature 40 DEG C to stir 20min; Add 18g Vinylstyrene and 0.7g n-dodecyl mereaptan again, treat that temperature rises to 77 DEG C and adds 0.36g Potassium Persulphate, be slowly warmed up to 85 DEG C, and be incubated 125min; Drip 15.2g methyl alcohol and reflux (dripping off in 1.5h); After methyl alcohol dropwises, insulation 80min; Then heating is stopped, cooling.By centrifugal for milky muddy emulsion (centrifugal speed is 2500r/min), isolated precipitation powder adds water and to stir after 20min more centrifugal (centrifugal speed is 2500r/min); Dry 5h under the condition of 75 DEG C, obtains the storng-acid cation exchange resin powder that can be directly used in cationic exchange membrane.
embodiment 4
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 76 parts
Vinylstyrene 24 parts
N-dodecyl mereaptan 0.79 part
Emulsifying agent NRS-101.4 part
Emulsifying agent M-20S3.6 part
Initiator 0.29 part
Methyl alcohol 11.2 parts
427 parts, water
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are sodium p styrene sulfonate (SS); Described initiator is ammonium persulphate.
The preparation method of above-mentioned a kind of storng-acid cation exchange resin powder, specifically comprises the steps:
In the four-necked bottle that electric mixer, thermometer, prolong and dropping funnel are housed, add 427g deionized water, 1.4g emulsifying agent NRS-10,3.6g emulsifying agent MS-20 and 76g sodium p styrene sulfonate, keep temperature 40 DEG C to stir 20min; Add 24g Vinylstyrene and 0.5g n-dodecyl mereaptan again, treat that temperature rises to 77 DEG C and adds 0.29g ammonium persulphate, be slowly warmed up to 85 DEG C, and be incubated 125min; Drip 11.2g methyl alcohol and reflux (dripping off in 1.5h); After methyl alcohol dropwises, insulation 80min; Then heating is stopped, cooling.By centrifugal for milky muddy emulsion (centrifugal speed is 2500r/min), isolated precipitation powder adds water and to stir after 20min more centrifugal (centrifugal speed is 2500r/min); Dry 5h under the condition of 75 DEG C, obtains the storng-acid cation exchange resin powder that can be directly used in cationic exchange membrane.
embodiment 5
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 73 parts
Vinylstyrene 27 parts
N-dodecyl mereaptan 0.85 part
Emulsifying agent NRS-100.5 part
Emulsifying agent M-20S4.5 part
Initiator 0.23 part
Methyl alcohol 8.3 parts
460 parts, water
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are sodium p styrene sulfonate (SS); Described initiator is Potassium Persulphate.
The preparation method of above-mentioned a kind of storng-acid cation exchange resin powder, specifically comprises the steps:
In the four-necked bottle that electric mixer, thermometer, prolong and dropping funnel are housed, add 460g deionized water, 0.5g emulsifying agent NRS-10,4.5g emulsifying agent MS-20 and 73g sodium p styrene sulfonate, keep temperature 40 DEG C to stir 20min; Add 27g Vinylstyrene and 0.85g n-dodecyl mereaptan again, treat that temperature rises to 77 DEG C and adds 0.23g Potassium Persulphate, be slowly warmed up to 85 DEG C, and be incubated 125min; Drip 8.3g methyl alcohol and reflux (dripping off in 1.5h); After methyl alcohol dropwises, insulation 80min; Then heating is stopped, cooling.By centrifugal for milky muddy emulsion (centrifugal speed is 2500r/min), isolated precipitation powder adds water and to stir after 20min more centrifugal (centrifugal speed is 2500r/min); Dry 5h under the condition of 75 DEG C, obtains the storng-acid cation exchange resin powder that can be directly used in cationic exchange membrane.
The sulphur content (S%) of the storng-acid cation exchange resin of gained and loading capacity (IEC) value in the various embodiments described above, it the results are shown in following table:
| Embodiment | Sulphur content (S%) | Loading capacity IEC(meq/g) |
| 1 | 13.97 | 4.36 |
| 2 | 13.78 | 4.30 |
| 3 | 12.43 | 3.88 |
| 4 | 11.36 | 3.55 |
| 5 | 10.88 | 3.40 |
The present invention successfully prepares and can be directly used in strong acid ion exchange resin powder as can be seen from the above table, and its sulphur content (S%) is 10.88 ~ 13.97%, and loading capacity is 3.40 ~ 4.36meq/g.Indicate thus and can substitute tradition by novel method of the present invention and prepare strong acid ion exchange resin powder technology, simple to operate.
In sum, a kind of storng-acid cation exchange resin powder of the present invention, white powder, its median size is based on 1 μm and 100 μm after testing, sulphur content (S%) scope is 10.88 ~ 13.97%, get rid of the sulfonation in the preparation technology of traditional cation exchange resin powder and attrition process, solved a large amount of spent acid in traditional technology and discharge problem of environmental pollution, the production safety problem brought and grind the large problem of granularity.
Above said content be only the present invention conceive under basic explanation, and according to any equivalent transformation that technical scheme of the present invention is done, all should protection scope of the present invention be belonged to.
Claims (8)
1. a storng-acid cation exchange resin powder, is characterized in that calculating by weight, its raw material composition and content as follows:
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 73 ~ 93 parts,
Vinylstyrene 7 ~ 27 parts,
N-dodecyl mereaptan 0.5 ~ 0.85 part,
Emulsifying agent NRS-100.5 ~ 4.5 part,
Emulsifying agent M-20S0.5 ~ 4.5 part,
Initiator 0.23 ~ 0.45 part,
Methyl alcohol 8.3 ~ 20.7 parts,
Deionized water 160 ~ 460 parts,
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are sodium p styrene sulfonate or 2-acrylamide-2-methyl-propane sulfonic acid sodium; Described initiator is ammonium persulphate or Potassium Persulphate.
2. a kind of storng-acid cation exchange resin powder as claimed in claim 1, is characterized in that calculating by weight, its raw material composition and content as follows:
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 93 parts,
Vinylstyrene 7 parts,
N-dodecyl mereaptan 0.5 part,
Emulsifying agent NRS-104.5 part,
Emulsifying agent M-20S0.5 part,
Initiator 0.45 part,
Methyl alcohol 20.7 parts,
Deionized water 160 parts,
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are sodium p styrene sulfonate SS; Described initiator is Potassium Persulphate.
3. a kind of storng-acid cation exchange resin powder as claimed in claim 1, is characterized in that calculating by weight, its raw material composition and content as follows:
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 90 parts,
Vinylstyrene 10 parts,
N-dodecyl mereaptan 0.62 part,
Emulsifying agent NRS-103.8 part,
Emulsifying agent M-20S1.2 part,
Initiator 0.41 part,
Methyl alcohol 18.3 parts,
Deionized water 193 parts,
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are 2-acrylamide-2-methyl-propane sulfonic acid sodium; Described initiator is Potassium Persulphate.
4. a kind of storng-acid cation exchange resin powder as claimed in claim 1, is characterized in that calculating by weight, its raw material composition and content as follows:
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 82 parts,
Vinylstyrene 18 parts,
N-dodecyl mereaptan 0.7 part,
Emulsifying agent NRS-102.6 part,
Emulsifying agent M-20S2.5 part,
Initiator 0.36 part,
Methyl alcohol 15.2 parts,
Deionized water 396 parts,
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are sodium p styrene sulfonate; Described initiator is Potassium Persulphate.
5. a kind of storng-acid cation exchange resin powder as claimed in claim 1, is characterized in that calculating by weight, its raw material composition and content as follows:
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 76 parts,
Vinylstyrene 24 parts,
N-dodecyl mereaptan 0.79 part,
Emulsifying agent NRS-101.4 part,
Emulsifying agent M-20S3.6 part,
Initiator 0.29 part,
Methyl alcohol 11.2 parts,
Deionized water 427 parts,
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are sodium p styrene sulfonate; Described initiator is ammonium persulphate.
6. a kind of storng-acid cation exchange resin powder as claimed in claim 1, is characterized in that calculating by weight, its raw material composition and content as follows:
Unsaturated alkyl sulfonate or unsaturated arylsulphonate 73 parts,
Vinylstyrene 27 parts,
N-dodecyl mereaptan 0.85 part,
Emulsifying agent NRS-100.5 part,
Emulsifying agent M-20S4.5 part,
Initiator 0.23 part,
Methyl alcohol 8.3 parts,
Deionized water 460 parts,
Described unsaturated alkyl sulfonate or unsaturated arylsulphonate are sodium p styrene sulfonate; Described initiator is Potassium Persulphate.
7. the preparation method of arbitrary described a kind of storng-acid cation exchange resin powder in claim 1-6, is characterized in that comprising the steps:
1) each raw material is taken according to parts by weight;
2) in a reaction vessel, add deionized water, emulsifying agent NRS-10, emulsifying agent MS-20, unsaturated alkyl sulfonate or unsaturated arylsulphonate, keep temperature 35 ~ 45 DEG C, stir, 10 ~ 30min;
3) add Vinylstyrene and n-dodecyl mereaptan again, treat that temperature rises to 65 ~ 80 DEG C and adds initiator, then be warming up to 82 ~ 90 DEG C, and be incubated 100 ~ 150min;
4) drip methyl alcohol and keep backflow, after methyl alcohol dropwises, insulation 50 ~ 100min, then stops heating, cooling;
5) by milky muddy emulsion centrifugation, after isolated powder being added water stirring, centrifugation obtains product again;
6) this product is dry, obtain the storng-acid cation exchange resin powder that can be directly used in cationic exchange membrane.
8. the preparation method of a kind of storng-acid cation exchange resin powder according to claim 7, is characterized in that: described centrifugal speed is 2000 ~ 3000r/min.
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| CN108447582A (en) * | 2018-02-05 | 2018-08-24 | 中北大学 | A kind of used in nuclear power station has the suspension process of radioactive discarded anion-cation exchange resin |
| CN113716536A (en) * | 2021-11-02 | 2021-11-30 | 清大国华环境集团股份有限公司 | Recycling treatment method of acidic aluminum etching waste liquid |
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| CN113856503A (en) * | 2021-10-18 | 2021-12-31 | 大连理工大学 | Sulfonic acid type cation exchange membrane for reverse electrodialysis technology, preparation method and application thereof |
| CN113716536A (en) * | 2021-11-02 | 2021-11-30 | 清大国华环境集团股份有限公司 | Recycling treatment method of acidic aluminum etching waste liquid |
| CN113716536B (en) * | 2021-11-02 | 2022-04-01 | 清大国华环境集团股份有限公司 | Recycling treatment method of acidic aluminum etching waste liquid |
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