CN105944771A - Method for preparing large-aperture cation exchange resin containing high-valence silver ions - Google Patents
Method for preparing large-aperture cation exchange resin containing high-valence silver ions Download PDFInfo
- Publication number
- CN105944771A CN105944771A CN201610268801.5A CN201610268801A CN105944771A CN 105944771 A CN105944771 A CN 105944771A CN 201610268801 A CN201610268801 A CN 201610268801A CN 105944771 A CN105944771 A CN 105944771A
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- CN
- China
- Prior art keywords
- cation exchange
- large aperture
- exchange resin
- resin
- silver ion
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- 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
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/16—Organic material
- B01J39/18—Macromolecular compounds
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention discloses a method for preparing large-aperture cation exchange resin containing high-valence silver ions, and belongs to the technical field of water purification. Large-aperture strong acid type cation exchange resin specified for silver ions is used, the silver ions are adsorbed in the resin, then the silver ions adsorbed by the resin are oxidized into the high-valence silver ions by using a strong oxidant, and the maximal antibacterial activity is obtained. The method has simple operation; the obtained resin has the advantages of good sterilization and filtration effects, no toxicity and harmlessness, and can be widely applied in domestic water, scouring bath, swimming pool, field drinking water, animal husbandry and aquaculture water and other aspects.
Description
Technical field
The present invention relates to a kind of filtering material for Drinking Water Filtration sterilizing, be specifically related to a kind of carry high price silver from
The preparation method of the large aperture cation exchange resin of son.
Background technology
Common silver has 0 valency, positive 1 valency, positive divalent, four kinds of different valence state of positive trivalent.Numerous studies show, the silver of different valence state
It is respectively provided with bactericidal effect, but along with the change of valence state, its sterilization mechanism is different.0 valency silver is a kind of good oxidation reaction
Catalyst.At present about positive 1 valency silver ion (Ag+) sterilization mechanism mainly have two kinds of theories, one is ionic replacement sterilization machine
Reason, another kind is free-radical oxidation sterilization mechanism.Positive divalent, the silver of positive trivalent have the sterilizing ability more higher than positive 1 valency silver, at high price
Silver reduction potential is higher, and its strong oxidizing property makes it have superpower sterilizing ability.The bactericidal activity order of silver is: Ag3+>Ag2+>
Ag+> Ag.Within 1994, Antelman finds, the sterilization speed of positive trivalent silver averagely fast 240 times of positive 1 valency silver of ratio, bactericidal effect is
200 times of positive 1 valency silver.But silver ion chemical property is active, easily variable color under illumination, heat etc. act on, and easy and halogen family unit
Element reaction produces precipitation, and these unstable factors all will have influence on its bactericidal property, at present about carrying argentic sterilization material
Material have not been reported.
Summary of the invention
For making up the deficiencies in the prior art, the present invention provides a kind of nontoxic, load high valency silver ion that bacteriostatic activity is strong
The preparation method of large aperture cation exchange resin.
The present invention is achieved through the following technical solutions:
A kind of preparation method of the large aperture cation exchange resin carrying high valency silver ion, it is characterised in that: comprise the following steps:
(1) large aperture cation exchange resin is activated, clean, dry；
(2) dried large aperture cation exchange resin is joined AgNO3In solution, add stabilizer, under agitation enter
Row ion exchanges；
(3) resin filter in solution after being exchanged by ion removes moisture, joins Na2S2O8In solution, regulate pH value, boil
Boiling 1-3h, obtains carrying the large aperture cationic resin of high valency silver ion；
(4) after above-mentioned mixed solution is cooled to room temperature, add activation, cleaned blank large aperture cation exchange resin, enter
Row second adsorption；
(5) filter the large aperture cationic resin of load high valency silver ion, remove solution, with sterile deionized water flushing resin to PH
Value is in neutrality；
(6) the load high price silver resin obtained is loaded in filter element as filtrate, each bacterioid contained in filtered water can be killed, control
Flow velocity processed can kill the antibacterial of 99.9% in water in 30 seconds.
The preparation method of the large aperture cation exchange resin carrying high valency silver ion of the present invention, the activation in step (1)
Process for large aperture cation exchange resin is immersed in saturated NaCl solution and continuously stirred, large aperture after activation sun from
Sub-exchange resin is washed with deionized water only, forced air drying at 80-100 DEG C, removes the moisture in resin, selected large aperture
Cation exchange resin, aperture is big, and specific surface area is big, and anion exchange capacity can reach the one of common 001-7 type cationic resin
More than Bei.
The preparation method of large aperture cation exchange resin carrying high valency silver ion of the present invention, swelling in step (2) after
Large aperture cation exchange resin and AgNO3The volume ratio of solution is 1:2, and described stabilizer is NaNO3, mixed solution pH value
For 6-7, ion-exchange time is 1-2h, and now, the silver carrying amount of resin reaches maximum.
The preparation method of large aperture cation exchange resin carrying high valency silver ion of the present invention, in step (3) resin with
Na2S2O8The volume ratio of solution is 1:2, uses NaOH regulation solution PH to 14, Na2S2O8Solution as strong oxidizer by resin
Monovalence silver ion be oxidized to the silver ion of bivalence, trivalent.
Further, the preparation method of the large aperture cation exchange resin carrying high valency silver ion of the present invention, in step (4)
Mixed solution is 2:1 with blank large aperture cationic resin volume ratio, is carried out by the high valency silver ion obtained to greatest extent
Resins exchange.
The invention has the beneficial effects as follows: the method for the present invention is simple to operate, selected resin is made by preparing ultra-pure water
Large hole cation exchanger resin, nontoxic, harmless.By the attached high valency silver ion of ion-exchange absorption, play disinfection filtering effect,
Improve the germicidal efficiency during water processes.Large aperture resin is better than other ions, therefore high price to the adsorption of high valency silver ion
Silver ion does not flows out outside resin with water, can't pollute filtering water body.Carrying high valency silver ion resin can
It is widely used in the aspects such as domestic water, bathing, swimming pool, field drinking water, animal husbandry and fishery breeding water.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further detailed explanation.
Embodiment 1
(1) by 1000ml large aperture cation exchange resin, join in the saturated NaCl solution of 1000ml, room temperature, stirs immersion 3
Hour, filter and repeatedly rinse with deionized water after removing moisture removal, the resin handled well is placed in air dry oven, dry at 95 DEG C
Dry 3 hours.
(2) measure the large aperture cation exchange resin of swelling volume 500ml, add molar concentration 0.02mol/L
NaNO3As stabilizer, add the AgNO of 0.02mol/L3Solution 1000ml, regulation pH value is 6, and under room temperature, stirring is entered for 2 hours
Row ion exchanges.
(3) carry out the resin filter after ion exchange remove the moisture in resin by above-mentioned, add molar concentration
The Na of 0.05mol/L2S2O81000ml, with NaOH regulation pH value to 14, boils 3 hours, places and be cooled to room temperature.
(4) reactant liquor after the cooling period adds remaining 500ml blank large aperture cation exchange resin, is stirred at room temperature
2 hours, carry out second adsorption.
(5) 1000ml of all acquisitions is carried high valency silver ion resin filter and remove moisture removal, with sterile deionized water repeatedly
Rinse to neutral, filter and go moisture removal stand-by.
(6) the load high valency silver ion resin obtained being loaded sealing in 10 cun of water purification filter element casings, filter element can load water purification mistake
Filter uses.
Embodiment 2
(1) by 1000ml large aperture cation exchange resin, join in the saturated NaCl solution of 1000ml, room temperature, stirs immersion 3
Hour, filter and repeatedly rinse with deionized water after removing moisture removal, the resin handled well is placed in air dry oven, dry at 80 DEG C
Dry 4 hours.
(2) measure the large aperture cation exchange resin of swelling volume 500ml, add molar concentration 0.02mol/L
NaNO3As stabilizer, add the AgNO of 0.02mol/L3Solution 1000ml, regulation pH value is 7, and under room temperature, stirring is entered for 1 hour
Row ion exchanges.
(3) carry out the resin filter after ion exchange remove the moisture in resin by above-mentioned, add molar concentration
The Na of 0.05mol/L2S2O81000ml, with NaOH regulation pH value to 14, boils 2 hours, places and be cooled to room temperature.
(4) reactant liquor after the cooling period adds remaining 500ml blank large aperture cation exchange resin, is stirred at room temperature
3 hours, carry out second adsorption.
(5) 1000ml of all acquisitions is carried high valency silver ion resin filter and remove moisture removal, with sterile deionized water repeatedly
Rinse to neutral, filter and go moisture removal stand-by.
(6) the load high valency silver ion resin obtained being loaded sealing in 10 cun of water purification filter element casings, filter element can load water purification mistake
Filter uses.
Embodiment 3
(1) by 1000ml large aperture cation exchange resin, join in the saturated NaCl solution of 1000ml, room temperature, stirs immersion 3
Hour, filter and repeatedly rinse with deionized water after removing moisture removal, the resin handled well is placed in air dry oven, dry at 90 DEG C
Dry 3.5 hours.
(2) measure the large aperture cation exchange resin of swelling volume 500ml, add molar concentration 0.02mol/L
NaNO3As stabilizer, add the AgNO of 0.02mol/L3Solution 1000ml, regulation pH value is 6, stirs 1.5 hours under room temperature
Carry out ion exchange.
(3) carry out the resin filter after ion exchange remove the moisture in resin by above-mentioned, add molar concentration
The Na of 0.05mol/L2S2O81000ml, with NaOH regulation pH value to 14, boils 1 hour, places and be cooled to room temperature.
(4) reactant liquor after the cooling period adds remaining 500ml blank large aperture cation exchange resin, is stirred at room temperature
2.5 hours, carry out second adsorption.
(5) 1000ml of all acquisitions is carried high valency silver ion resin filter and remove moisture removal, with sterile deionized water repeatedly
Rinse to neutral, filter and go moisture removal stand-by.
(6) the load high valency silver ion resin obtained being loaded sealing in 10 cun of water purification filter element casings, filter element can load water purification mistake
Filter uses.
Claims (8)
1. the preparation method of the large aperture cation exchange resin carrying high valency silver ion, it is characterised in that: include following step
Rapid:
(1) large aperture cation exchange resin is activated, clean, dry；
(2) dried large aperture cation exchange resin is joined AgNO3In solution, add stabilizer, under agitation carry out
Ion exchanges；
(3) resin filter in solution after being exchanged by ion removes moisture, joins Na2S2O8In solution, regulate pH value, boil
Boiling 1-3h, obtains carrying the large aperture cationic resin of high valency silver ion；
(4) after above-mentioned mixed solution is cooled to room temperature, add activation, cleaned blank large aperture cation exchange resin, enter
Row second adsorption；
(5) filter the large aperture cationic resin of load high valency silver ion, remove solution, with sterile deionized water flushing resin to PH
Value is in neutrality.
The preparation method of a kind of large aperture cation exchange resin carrying high valency silver ion the most according to claim 1, its
It is characterised by: the activation process in step (1) is for being immersed in large aperture cation exchange resin in saturated NaCl solution and holding
Continuous stirring.
The preparation method of a kind of large aperture cation exchange resin carrying high valency silver ion the most according to claim 1 and 2,
It is characterized in that: the large aperture cation exchange resin after activation is washed with deionized water only, forced air drying at 80-100 DEG C.
The preparation method of a kind of large aperture cation exchange resin carrying high valency silver ion the most according to claim 1, its
It is characterised by: the large aperture cation exchange resin after swelling in step (2) and AgNO3The volume ratio of solution is 1:2, mixes molten
Liquid pH value is 6-7, and ion-exchange time is 1-2h.
The preparation method of a kind of large aperture cation exchange resin carrying high valency silver ion the most according to claim 1, its
It is characterised by: described in step (2), stabilizer is NaNO3。
The preparation method of a kind of large aperture cation exchange resin carrying high valency silver ion the most according to claim 1, its
It is characterised by: resin and Na in step (3)2S2O8The volume ratio of solution is 1:2.
The preparation method of a kind of large aperture cation exchange resin carrying high valency silver ion the most according to claim 1, its
It is characterised by: step (3) uses NaOH regulation solution PH to 14.
The preparation method of a kind of large aperture cation exchange resin carrying high valency silver ion the most according to claim 1, its
It is characterised by: in step (4), mixed solution is 2:1 with blank large aperture cationic resin volume ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610268801.5A CN105944771A (en) | 2016-04-27 | 2016-04-27 | Method for preparing large-aperture cation exchange resin containing high-valence silver ions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610268801.5A CN105944771A (en) | 2016-04-27 | 2016-04-27 | Method for preparing large-aperture cation exchange resin containing high-valence silver ions |
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| Publication Number | Publication Date |
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| CN105944771A true CN105944771A (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610268801.5A Pending CN105944771A (en) | 2016-04-27 | 2016-04-27 | Method for preparing large-aperture cation exchange resin containing high-valence silver ions |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112342691A (en) * | 2019-10-25 | 2021-02-09 | 福建冠泓工业有限公司 | Elastic antibacterial non-woven fabric and manufacturing process thereof |
| CN113333035A (en) * | 2021-04-14 | 2021-09-03 | 浙江沁园水处理科技有限公司 | Preparation method and application of strontium-type resin |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1720801A (en) * | 2004-07-12 | 2006-01-18 | 深圳市清华源兴生物医药科技有限公司 | Silver carried bactericidal active carbon, its preparation process and application |
| CN102461561A (en) * | 2010-11-19 | 2012-05-23 | 北京佳盛世纪科技有限公司 | Zeolite-loaded silver antibacterial agent and preparation method thereof |
-
2016
- 2016-04-27 CN CN201610268801.5A patent/CN105944771A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1720801A (en) * | 2004-07-12 | 2006-01-18 | 深圳市清华源兴生物医药科技有限公司 | Silver carried bactericidal active carbon, its preparation process and application |
| CN102461561A (en) * | 2010-11-19 | 2012-05-23 | 北京佳盛世纪科技有限公司 | Zeolite-loaded silver antibacterial agent and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| LIZZY MPENYANA-MONYATSI ET AL: ""Cost-Effective Filter Materials Coated with Silver Nanoparticles for the Removal of Pathogenic Bacteria in Groundwater Antimicrobial filter"", 《INT. J. ENVIRON. RES. PUBLIC HEALTH》 * |
| 高伟: ""高价银材料抑制水体藻类生长的试验研究"", 《万方学位论文数据库》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112342691A (en) * | 2019-10-25 | 2021-02-09 | 福建冠泓工业有限公司 | Elastic antibacterial non-woven fabric and manufacturing process thereof |
| CN113333035A (en) * | 2021-04-14 | 2021-09-03 | 浙江沁园水处理科技有限公司 | Preparation method and application of strontium-type resin |
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Application publication date: 20160921 |
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