CN1085561C - Separation method of mixed macroporous weak base weak acid anion-cation exchange resin - Google Patents
Separation method of mixed macroporous weak base weak acid anion-cation exchange resin Download PDFInfo
- Publication number
- CN1085561C CN1085561C CN98117801A CN98117801A CN1085561C CN 1085561 C CN1085561 C CN 1085561C CN 98117801 A CN98117801 A CN 98117801A CN 98117801 A CN98117801 A CN 98117801A CN 1085561 C CN1085561 C CN 1085561C
- Authority
- CN
- China
- Prior art keywords
- weak
- resin
- exchange resin
- ion exchange
- mixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000926 separation method Methods 0.000 title claims abstract description 14
- 239000003729 cation exchange resin Substances 0.000 title abstract description 7
- 239000002253 acid Substances 0.000 title abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 57
- 239000011347 resin Substances 0.000 claims abstract description 35
- 229920005989 resin Polymers 0.000 claims abstract description 35
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003957 anion exchange resin Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 239000003456 ion exchange resin Substances 0.000 claims description 35
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 35
- 125000000129 anionic group Chemical group 0.000 claims description 18
- 125000002091 cationic group Chemical group 0.000 claims description 18
- 238000004062 sedimentation Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 244000180534 Berberis hybrid Species 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000002791 soaking Methods 0.000 abstract 3
- 230000005484 gravity Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 238000002474 experimental method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
Landscapes
- Treatment Of Water By Ion Exchange (AREA)
Abstract
A separation method of mixed macroporous weak base weak acid anion-cation exchange resin is carried out according to the following steps: A. resin transformation: firstly, putting mixed anion-cation exchange resin into a sodium hydroxide solution for soaking, then adding demineralized water to enable the pH value of the solution to be 7-8, and then adding a calcium chloride solution into the solution for continuing soaking; B. separating mixed resin: firstly, soaking the transformed mixed resin into a sodium hydroxide solution, fully stirring, then floating anion exchange resin, settling cation exchange resin, and then respectively fishing out the anion exchange resin and the cation exchange resin to realize separation. The invention has the advantages of simple operation, less investment and no need of special equipment, can completely separate the mixed resin with approximate specific gravity, does not damage the physical and chemical properties of the resin, and is particularly suitable for the field of resin manufacture or application of water treatment systems.
Description
The invention belongs to the separation technology field of the anion-cation exchange resin of mixing, is a kind of separation process for mixed weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins.
At present, in anion-cation exchange resin manufacturing or application process,, cause the mutual mixing of different model resin, thereby can not use or not reach the specification requirement of use owing to technology, equipment, reason such as artificial.Patent application publication number is that the application for a patent for invention of CN1054019A discloses the new method that a kind of hybrid resin separates fully, this method is to utilize the different specific weight of yin, yang resin, yin and yang resin is separated fully, it is a kind of separation method of resin when being used for the power plant condensate water and handling mixed bed regeneration, this method needs special equipment, and the hybrid resin close for proportion just can not separate, need Special Equipment owing to separate, thereby investment is big, installation is complicated.
In view of the problem of above-mentioned existence, the object of the present invention is to provide a kind of separation process for mixed weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins simple to operate that can separate the close hybrid resin of proportion.
The objective of the invention is to realize by following measure: this separation process for mixed weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins is to be undertaken by following step: the A. ion exchange resin conversion: at first the weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins that mixes is put in 3% to 6% the sodium hydroxide solution and soaked 6 to 10 hours, add pH value to 7 that demineralized water makes solution then till 8, secondly in solution, add 8% to 12% the calcium chloride solution that is no less than the macroporous ion exchange resin molar equivalent, and make the weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins of mixing continue again to soak 2 to 4 hours; B. hybrid resin separates: at first the hybrid resin after above-mentioned transition is dipped in 20% to 37% the sodium hydroxide solution and after fully stirring, the macropore weak basic anion exchange resin floats, the macroporous ion exchange resin sedimentation, the resin of resin that will float respectively and sedimentation is pulled out then, and macropore weak basic anion exchange resin and macroporous ion exchange resin are separated.Wherein, in the hybrid resin separating step, the sodium hydroxide solution amount is half of separating tank volume; In the hybrid resin separating step, each mixed weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins amount of separating is not more than 2/3rds of separating tank volume.
The proportion that table 1 and accompanying drawing are respectively macropore weak basic anion exchange resin, macroporous ion exchange resin and the sodium hydroxide solution of weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins back transition in the variable concentrations sodium hydroxide solution changes experiment contrast table and figure
Table 2 is a water-quality test result parameter table,
Wherein, D301 represents the macropore weak basic anion exchange resin, and D113 represents macroporous ion exchange resin, and Fc represents the floating bed special use.
Below in conjunction with embodiment and experiment contrast chart the present invention is further described:
Embodiment is the example of sneaking into the hybrid resin separation method of 5%D113FC and the effluent quality situation that puts into operation thereof among the D301FC:
A. ion exchange resin conversion: at first the weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins that mixes is put in 3% to 6% the sodium hydroxide solution and soaked 6 to 10 hours, make D113FC transfer the R-Na type to, make D301FC transfer the R-NH2 type to; Add pH value to 7 that demineralized water makes solution then till 8; Secondly in solution, add 8% to 12% the calcium chloride solution that is no less than the macroporous ion exchange resin molar equivalent, and make the weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins of mixing continue again to soak 2 to 4 hours, make D113Fc all change R2-Ca; Record through experiment, the macropore weak basic anion exchange resin after transition is that D301Fc and macroporous ion exchange resin are that the proportion of D113Fc and variable concentrations sodium hydroxide solution changes, and sees table 1 and accompanying drawing for details;
B. hybrid resin separates: according to experiment contrast table in the above-mentioned accompanying drawing, after at first the hybrid resin after above-mentioned transition being dipped in 20% to 37% the sodium hydroxide solution and fully stirring, the proportion that because of the macropore weak basic anion exchange resin is D301Fc floats than the little of sodium hydroxide solution, and the proportion of macroporous ion exchange resin D311Fc is than the big of sodium hydroxide solution and sedimentation, the resin of resin that will float respectively and sedimentation is pulled out then, and just making the macropore weak basic anion exchange resin is that D301Fc and macroporous ion exchange resin are that D311Fc is separated.
For the ease of operation, in the hybrid resin separating step, the sodium hydroxide solution amount is half of separating tank volume; And in the hybrid resin separating step, each mixed weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins amount of separating is not more than 2/3rds of separating tank volume.
With the macropore weak basic anion exchange resin after the above-mentioned separation is that D301Fc and macroporous ion exchange resin are after D311Fc puts into operation, operation a period of time water quality tends towards stability, 7100 tons of the period 1 system water yields, be designed to 5800 tons, water quality reaches specification requirement (promptly reaching the index parameter in the bracket) fully after tested, and seeing table 2 for details is water-quality test result parameter table.
In sum, the present invention has simple to operate, small investment, does not need the advantage of special equipment.The hybrid resin 100% that utilizes the present invention that proportion is close separates, and does not destroy the physicochemical properties of resin, is specially adapted to the resin manufacture or the application of water treatment of power plant system.
The proportion of macropore weak basic anion exchange resin, macroporous ion exchange resin and the sodium hydroxide solution of table 1. weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins back transition in the variable concentrations sodium hydroxide solution changes the experiment contrast table
20％ 21％ 23％ 25％ 28％ 30％ 33％ 35％ 37％ 40％NaOH 1.219 1.230 1.252 1.274 1.306 1.328 1.359 1.380 1.400 1.43D113FcR2Ca 1.323 1.328 1.337 1.347 1.361 1.370 1.384 1.393 1.402 1.42D301FcR-NH2?1.215 1.220 1.231 1.241 1.257 1.267 1.282 1.292 1.302 1.32
Table 2. water-quality test result parameter table index electrical conductivity (≤5us/cm) silicate (100ug/L) PNa (≤300ug/L) 1.32 4.0 103 months 22 days 22:00 1.35 3.7 9 of 2.76 4.7 403 months 22 days 16:00 1.40 2.3 83 months 22 days 20:00 of 1.60 4.1 383 months 22 days 18:00 of 14:00 on March 22
Claims (3)
1. separation process for mixed weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins is characterized in that being undertaken by following step:
A. ion exchange resin conversion: at first the weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins that mixes is put in 3% to 6% the sodium hydroxide solution and soaked 6 to 10 hours, add pH value to 7 that demineralized water makes solution then till 8, secondly in solution, add 8% to 12% the calcium chloride solution that is no less than the macroporous ion exchange resin molar equivalent, and make the weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins of mixing continue again to soak 2 to 4 hours;
B. hybrid resin separates: at first the hybrid resin after above-mentioned transition is dipped in 20% to 37% the sodium hydroxide solution and after fully stirring, the macropore weak basic anion exchange resin floats, the macroporous ion exchange resin sedimentation, the resin of resin that will float respectively and sedimentation is pulled out then, and macropore weak basic anion exchange resin and macroporous ion exchange resin are separated.
2. separation process for mixed weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins according to claim 1 is characterized in that in the hybrid resin separating step that the sodium hydroxide solution amount is half of separating tank volume.
3. separation process for mixed weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins according to claim 1, it is characterized in that in the hybrid resin separating step that each mixed weak-alkaline and weak-acidic macroreticular anionic and cationic ion exchange resins amount of separating is not more than 2/3rds of separating tank volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98117801A CN1085561C (en) | 1998-08-27 | 1998-08-27 | Separation method of mixed macroporous weak base weak acid anion-cation exchange resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98117801A CN1085561C (en) | 1998-08-27 | 1998-08-27 | Separation method of mixed macroporous weak base weak acid anion-cation exchange resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1246388A CN1246388A (en) | 2000-03-08 |
| CN1085561C true CN1085561C (en) | 2002-05-29 |
Family
ID=5225718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98117801A Expired - Fee Related CN1085561C (en) | 1998-08-27 | 1998-08-27 | Separation method of mixed macroporous weak base weak acid anion-cation exchange resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1085561C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4943377B2 (en) * | 2008-05-22 | 2012-05-30 | 株式会社荏原製作所 | Condensate demineralization method and condensate demineralization apparatus |
| CN112591850A (en) * | 2020-12-04 | 2021-04-02 | 阿拉山口海关技术中心 | Internal circulating water purifying agent for X-ray fluorescence spectrometer, preparation method and application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3582504A (en) * | 1970-04-20 | 1971-06-01 | Ecodyne Corp | Method for separating and isolating ion exchange resins |
| JPS559465A (en) * | 1978-07-07 | 1980-01-23 | Shinetsu Chem Ind Co | Light polymerizable resin composition for hybrid ic coating |
| CN2061171U (en) * | 1989-11-28 | 1990-08-29 | 北京市崇文区龙谭五金厂 | Resin separator |
| CN1045360A (en) * | 1989-03-09 | 1990-09-19 | 邹萃林 | The renovation process of pure water preparation intermediate ion exchange resin |
| CN1054019A (en) * | 1990-08-30 | 1991-08-28 | 华东电业管理局望亭发电厂 | The new method that hybrid resin separates fully |
-
1998
- 1998-08-27 CN CN98117801A patent/CN1085561C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3582504A (en) * | 1970-04-20 | 1971-06-01 | Ecodyne Corp | Method for separating and isolating ion exchange resins |
| JPS559465A (en) * | 1978-07-07 | 1980-01-23 | Shinetsu Chem Ind Co | Light polymerizable resin composition for hybrid ic coating |
| CN1045360A (en) * | 1989-03-09 | 1990-09-19 | 邹萃林 | The renovation process of pure water preparation intermediate ion exchange resin |
| CN2061171U (en) * | 1989-11-28 | 1990-08-29 | 北京市崇文区龙谭五金厂 | Resin separator |
| CN1054019A (en) * | 1990-08-30 | 1991-08-28 | 华东电业管理局望亭发电厂 | The new method that hybrid resin separates fully |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1246388A (en) | 2000-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100848605B1 (en) | Chemical reagent for the purpose of simultaneous treatment of n, p and microalgae for prevention eutrophication of water bodies | |
| CN103864153B (en) | PCB factory acidic etching liquid replacement extraction copper and the method preparing poly-ferric chloride | |
| CN108128935A (en) | A kind of method and apparatus of FLUORIDE REMOVAL IN WASTEWATER | |
| EP0749402A1 (en) | Preparations and uses of polyferric sulphate | |
| CN106693923A (en) | Gel for recovering phosphorus from water and preparation method and application thereof | |
| CN102689956B (en) | Silicon removing method for silicone waste water | |
| CN111420630A (en) | Preparation and regeneration method of magnesium hydroxide modified diatomite dephosphorizing agent | |
| CN102211018A (en) | Membrane adsorbent for recycling nitrogen and phosphorus resources from waste water as well as preparation method and application thereof | |
| CN106698745A (en) | Method for recovering phosphorus in sewage | |
| CN1085561C (en) | Separation method of mixed macroporous weak base weak acid anion-cation exchange resin | |
| CN101708461B (en) | Adsorbent of immobilized rare earth metal cerium and preparation method thereof | |
| CN103936249A (en) | Method for improving anaerobic fermentation phosphorus release rate of phosphorus-containing chemical-biological mixed sludge | |
| CN107746118B (en) | Water treatment agent and preparation method thereof | |
| CN110078282A (en) | A kind of heavy metal waste water treatment process | |
| CN102675081B (en) | Preparation method of high-purity acetic acid | |
| CN114904490B (en) | Preparation method of degradable chitosan-based lithium ion imprinting membrane | |
| CN112142168A (en) | Anode material for improving membrane pollution of converter valve external cold water system and electrochemical method | |
| CN101920215A (en) | Mixed resin and preparation method thereof | |
| CN103285744A (en) | Method for preparing gamma-diethylenetriamine-propyl-methyl-dimethoxysilane-diethylene triamine pentaacetic acid/polyvinylidene fluoride exchange membrane | |
| CN114146694B (en) | Preparation method, product and application of sodium alginate/polyvinyl alcohol/polyacrylamide/kaolin adsorption material | |
| CN111499143B (en) | Method for synchronously strengthening acid production and removing organic byproducts difficult to degrade in sludge anaerobic fermentation process | |
| CN114772747A (en) | Ammonia nitrogen wastewater denitrification treatment system and method | |
| CN114477532A (en) | Efficient deep fluorine removal method without increasing salinity of fluorine-containing wastewater | |
| CN101898159A (en) | Mixed resin and preparation method thereof | |
| CN110921899A (en) | Lithium hexafluorophosphate and low-fluorine lithium phosphate compound wastewater treatment process and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |