CN101224436A - Ion exchange resin regeneration method - Google Patents
Ion exchange resin regeneration method Download PDFInfo
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- CN101224436A CN101224436A CNA2007101333327A CN200710133332A CN101224436A CN 101224436 A CN101224436 A CN 101224436A CN A2007101333327 A CNA2007101333327 A CN A2007101333327A CN 200710133332 A CN200710133332 A CN 200710133332A CN 101224436 A CN101224436 A CN 101224436A
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- ion exchange
- exchange resin
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Abstract
The invention relates to a regeneration method for an ion exchange resin, wherein, the ion exchange resin includes a cation exchange resin and an anion exchange resin. The method mainly comprises two steps that: a desorption solution is introduced into an ion exchange column containing ion exchange resin for removing the impurity ions absorbed on or firmly combined with the resin; a regeneration solution counter current is introduced into the ion exchange column for restoring the ion exchange ability of the ion exchange resin. The desorption solution and the regeneration solution adopts forward current and counter current modes respectively to be introduced into the ion exchange column one after another. By adopting the combining mode of forward and counter currents, the regenerated ion exchange resin can be effectively dispersed and equally dispersed in the ion exchange column, thus improving the column efficiency of the column exchange column and good for environment at the same time of reducing energy consumption and production cost.
Description
Technical field
The present invention relates in a kind of chemical industry, biochemistry, the medical product production process with the regeneration of ion-exchange resin method behind the ion exchange column products of separated.
Background technology
Ion exchange resin is widely used in and is used in chemical industry, biochemistry, the medical product production process extracting and purified compound.The iterative regenerable utilization of ion exchange resin is one of ion exchange resin major advantage of obtaining extensive use in industrial production.
Regeneration of ion-exchange resin mainly is to point to feed the process of regenerated liquid with the ion-exchange capacity of recovery resin in the ion exchange column that used ion exchange resin is housed.Usually in order to reach regeneration effect preferably, also can be after water washes away the suspended impurity that remains on the resin, feed before the regenerated liquid, feed the desorbed solution that ion exchange resin is had better clean result earlier, desorbed solution can be removed absorption or the foreign ion of strong bonded on ion exchange resin.For example to the resin cation of strong-acid type, the feeding sodium hydroxide solution is removed the impurity cationic on the resin earlier, feeds hydrochloric acid solution then and makes resin be with hydrogen ion again.
Existing mainly is to adopt the mode of following current to the regeneration of ion-exchange resin method, that is: regenerated liquid flows through resin from top to bottom, feed from the top of ion exchange column that ion exchange resin is housed, finish regeneration of ion-exchange resin in the process that flows from top to bottom along with regenerated liquid.And ion exchange column is in use, and material also is that the mode by following current adds, and this just causes ion exchange column in use for some time, the resin caking in the post, and certainly lead to the crack between piece and the piece.Since the separation of ion exchange column be meant charged species because of the charge force effect fixing and flow mutually between distribute and be separated from each other, it is in order to be effective necessary condition that two-phase fully contacts, if resin lumps, then resin is big to the resistance of mobile phase; In the operating process, the resistance of the slit convection cell between the caking is then less relatively, mobile phase is easier to be passed through, so just make the interior adsorbed molecule of resin of caking be not easy by wash-out, will cause that operating pressure height, eluent consumption concentration big, that collect target product in the liquid is low, the operation cycle long, the molecule wash-out fully of the target product of resin adsorption in the caking, problems such as yield is low, the post of ion exchange column is imitated and is greatly affected, and intersect easily between the product and cause the reduction of yield and product quality, the production cost height, and be unfavorable for environmental protection.
Summary of the invention
Technical problem to be solved by this invention provides a kind of ion exchange resin regeneration method, described ion exchange resin comprises cationic ion-exchange resin and anion exchange resin, adopt the ion exchange resin of this renovation process regeneration can scatter effectively and evenly distribution in ion exchange column, the post that has improved ion exchange column is imitated, when reducing production costs, help environmental protection.
For solving above technical problem, the technical solution used in the present invention is:
A kind of ion exchange resin regeneration method, described ion exchange resin comprises cationic ion-exchange resin and anion exchange resin, described ion exchange resin regeneration method comprises the steps:
(a), feeding water in the ion exchange column that used ion exchange resin is housed washs described ion exchange resin;
(b), adopt the mode of following current to feed in the ion exchange column of handling through step (a) that desorbed solution will adsorb or the foreign ion parsing of strong bonded on described ion exchange resin removed;
(c), in the ion exchange column of handling through step (b), feed water to remove the desorbed solution that remains on the described ion exchange resin;
(d), in the ion exchange column of handling through step (c), feed regenerated liquid to recover the ion-exchange capacity of described ion exchange resin;
(e), in the ion exchange column of handling through step (d), feed water and remove the regenerated liquid that remains on the described ion exchange resin with washing;
In described step (d), adopt the mode of adverse current that described regenerated liquid is fed in the described ion exchange column.
In described step (d), the feeding speed of suitably controlling described regenerated liquid makes the ion exchange resin in the described ion exchange column be fluidization slightly.
When described cationic ion-exchange resin is H
+During the type cationic ion-exchange resin, described desorbed solution is a sodium hydroxide solution, and regenerated liquid is an inorganic acid solution; When described anion exchange resin is OH
-During type anion exchange resin, desorbed solution is a hydrochloric acid solution, and described regenerated liquid is NaOH or potassium hydroxide solution.
The mode of described following current is meant regenerated liquid is fed from the ion-exchange column top, from top to bottom by described ion exchange resin; The mode of described adverse current is meant that regenerated liquid passes through ion exchange resin from bottom to top from the ion-exchange column bottom.
Because the technique scheme utilization, the present invention compared with prior art has following advantage:
Described regenerated liquid can make ion exchange resin shrink, when the mode that adopts adverse current feeds regenerated liquid in the ion exchange column, regenerated liquid can contact fully with ion exchange resin, and owing to be from bottom to top feeding mode, has solved resin pressurized agglomeration problems effectively.Ion exchange resin becomes loose in the ion exchange column after regenerating, and is evenly distributed, and the operation cycle of ion exchange column is short, and the yield height is beneficial to environmental protection when reducing production costs.
The specific embodiment
Below the specific embodiment of the present invention is described:
Embodiment 1
With H commonly used
+The type cationic ion-exchange resin be regenerated as example, adopt following steps that it is regenerated:
At first in the ion exchange column that used cationic ion-exchange resin is housed, feed water, resin is recoiled to remove suspended impurity.Following current feeds a certain amount of 1N-2N sodium hydroxide solution then.According to the actual needs, soaked 0.5-24 hour, treat the foreign ion that adsorbs on the resin separate out remove after, continue water following current washing resin, begin adverse current to water outlet after near neutrality and add a certain amount of 1N-2N hydrochloric acid solution, suitably control feeds the flow velocity of hydrochloric acid solution, make ion exchange resin be fluidization slightly, soaked 0.5-24 hour, following current or adverse current add washed resin, approaching neutral to water outlet, regeneration of ion-exchange resin finishes.
When adopting above-mentioned ion exchange column that the nucleotides in the nucleotides enzymolysis liquid in the producing nucleotide by enzyme method process is separated, other condition is constant, adopt the ion exchange column behind the renovation process of the present invention, compare the ion-exchange column operation with co-current regeneration, the operation cycle shortens more than 20%; The chromatography yield improves about 10%.
Embodiment 2
With OH commonly used
-Type anion exchange resin is example, can adopt following steps regeneration:
At first in the ion exchange column that used anion exchange resin is housed, feed water, resin is recoiled to remove suspended impurity; Following current adds a certain amount of 1N-2N hydrochloric acid solution then.Soaked 0.5-24 hour, treat the foreign ion that adsorbs on the resin separate out remove after, continue water following current washing resin, begin adverse current to water outlet near neutrality and add a certain amount of 1N-2N sodium hydroxide solution, suitably control feeds the flow velocity of sodium hydroxide solution, make ion exchange resin be fluidization slightly, soaked 0.5-24 hour, following current or adverse current feed water washing resin, and be approaching neutral to water outlet, regeneration of ion-exchange resin finishes, and is stand-by.
Claims (4)
1. ion exchange resin regeneration method, described ion exchange resin comprises cationic ion-exchange resin and anion exchange resin, described ion exchange resin regeneration method comprises the steps:
(a), feeding water in the ion exchange column that used ion exchange resin is housed washs described ion exchange resin;
(b), adopt the mode of following current to feed in the ion exchange column of handling through step (a) that desorbed solution will adsorb or the foreign ion parsing of strong bonded on described ion exchange resin removed;
(c), in the ion exchange column of handling through step (b), feed water to remove the desorbed solution that remains on the described ion exchange resin;
(d), in the ion exchange column of handling through step (c), feed regenerated liquid to recover the ion-exchange capacity of described ion exchange resin;
(e), in the ion exchange column of handling through step (d), feed water and remove the regenerated liquid that remains on the described ion exchange resin with washing;
It is characterized in that: in described step (d), adopt the mode of adverse current that described regenerated liquid is fed in the described ion exchange column.
2. a kind of ion exchange resin regeneration method according to claim 1 is characterized in that: in described step (d), the feeding speed of suitably controlling described regenerated liquid makes the ion exchange resin in the described ion exchange column be fluidization slightly.
3. a kind of ion exchange resin regeneration method according to claim 1 is characterized in that: when described cationic ion-exchange resin is H
+During the type cationic ion-exchange resin, described desorbed solution is a sodium hydroxide solution, and described regenerated liquid is an inorganic acid solution; When described anion exchange resin is OH
-During type anion exchange resin, described desorbed solution is a hydrochloric acid solution, and described regenerated liquid is NaOH or potassium hydroxide solution.
4. a kind of ion exchange resin regeneration method according to claim 3 is characterized in that: described inorganic acid is a hydrochloric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101333327A CN101224436A (en) | 2007-09-25 | 2007-09-25 | Ion exchange resin regeneration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101333327A CN101224436A (en) | 2007-09-25 | 2007-09-25 | Ion exchange resin regeneration method |
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| CN101224436A true CN101224436A (en) | 2008-07-23 |
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| CNA2007101333327A Pending CN101224436A (en) | 2007-09-25 | 2007-09-25 | Ion exchange resin regeneration method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102791667A (en) * | 2010-02-25 | 2012-11-21 | 宇部兴产株式会社 | Method for producing high purity aromatic methyl alcohol, and high purity aromatic methyl alcohol composition having excellent storage stability |
| CN102989529A (en) * | 2012-11-28 | 2013-03-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for on-line recovery of ion exchange resin |
| CN103551210A (en) * | 2013-11-06 | 2014-02-05 | 中国石油化工股份有限公司 | Method for regenerating ion exchange resin based on fluidized bed |
| CN103846081A (en) * | 2012-12-06 | 2014-06-11 | 新疆中核天山铀业有限公司 | Acidic resolution process for D382 type resin |
| CN104043487A (en) * | 2013-03-11 | 2014-09-17 | 卡特韦尔（天津）科技有限公司 | Regeneration method of ammonium ion exchange material |
| CN104922936A (en) * | 2014-03-20 | 2015-09-23 | 上海天士力药业有限公司 | Washing method of cation exchange chromatography column |
| CN104922939A (en) * | 2014-03-20 | 2015-09-23 | 上海天士力药业有限公司 | Washing method of gel chromatography column |
| CN105712435A (en) * | 2016-02-25 | 2016-06-29 | 南昌航空大学 | Recycling method of aluminum product chemical polishing waste fluid |
| CN111925671A (en) * | 2020-06-20 | 2020-11-13 | 浙江新时代中能循环科技有限公司 | Method for efficiently utilizing industrial hazardous waste ion exchange resin resources |
| CN112427051A (en) * | 2020-09-24 | 2021-03-02 | 大唐陕西发电有限公司 | Be used for power plant's positive exchange column resin regenerating unit |
| CN115069313A (en) * | 2022-06-30 | 2022-09-20 | 金川集团股份有限公司 | Ion exchange column desorption regeneration process |
| CN115477361A (en) * | 2022-05-05 | 2022-12-16 | 青岛海尔施特劳斯水设备有限公司 | Control method of water softening system and water softening system |
-
2007
- 2007-09-25 CN CNA2007101333327A patent/CN101224436A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102791667A (en) * | 2010-02-25 | 2012-11-21 | 宇部兴产株式会社 | Method for producing high purity aromatic methyl alcohol, and high purity aromatic methyl alcohol composition having excellent storage stability |
| CN102791667B (en) * | 2010-02-25 | 2014-11-05 | 宇部兴产株式会社 | Method for producing high purity aromatic methyl alcohol, and high purity aromatic methyl alcohol composition having excellent storage stability |
| CN102989529A (en) * | 2012-11-28 | 2013-03-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for on-line recovery of ion exchange resin |
| CN102989529B (en) * | 2012-11-28 | 2014-10-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for on-line recovery of ion exchange resin |
| CN103846081A (en) * | 2012-12-06 | 2014-06-11 | 新疆中核天山铀业有限公司 | Acidic resolution process for D382 type resin |
| CN103846081B (en) * | 2012-12-06 | 2016-06-29 | 新疆中核天山铀业有限公司 | A kind of D382 type resin acidic resolves technique |
| CN104043487A (en) * | 2013-03-11 | 2014-09-17 | 卡特韦尔（天津）科技有限公司 | Regeneration method of ammonium ion exchange material |
| CN103551210A (en) * | 2013-11-06 | 2014-02-05 | 中国石油化工股份有限公司 | Method for regenerating ion exchange resin based on fluidized bed |
| CN104922939A (en) * | 2014-03-20 | 2015-09-23 | 上海天士力药业有限公司 | Washing method of gel chromatography column |
| CN104922936A (en) * | 2014-03-20 | 2015-09-23 | 上海天士力药业有限公司 | Washing method of cation exchange chromatography column |
| CN104922936B (en) * | 2014-03-20 | 2018-11-30 | 上海天士力药业有限公司 | A kind of cleaning method of cation-exchange chromatography post |
| CN105712435A (en) * | 2016-02-25 | 2016-06-29 | 南昌航空大学 | Recycling method of aluminum product chemical polishing waste fluid |
| CN111925671A (en) * | 2020-06-20 | 2020-11-13 | 浙江新时代中能循环科技有限公司 | Method for efficiently utilizing industrial hazardous waste ion exchange resin resources |
| CN112427051A (en) * | 2020-09-24 | 2021-03-02 | 大唐陕西发电有限公司 | Be used for power plant's positive exchange column resin regenerating unit |
| CN115477361A (en) * | 2022-05-05 | 2022-12-16 | 青岛海尔施特劳斯水设备有限公司 | Control method of water softening system and water softening system |
| CN115477361B (en) * | 2022-05-05 | 2024-04-05 | 青岛海尔施特劳斯水设备有限公司 | Control method of soft water system and soft water system |
| CN115069313A (en) * | 2022-06-30 | 2022-09-20 | 金川集团股份有限公司 | Ion exchange column desorption regeneration process |
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Open date: 20080723 |