CN101811030B - Method for removing heavy metal ion by adopting chelate resin cooperative processing - Google Patents
Method for removing heavy metal ion by adopting chelate resin cooperative processing Download PDFInfo
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Abstract
The invention discloses a method for removing heavy metal ions by adopting chelate resin cooperative processing, wherein at least two kinds of chelate resins are added into a liquid needing to remove the heavy metal ions, and the chelate resin comprises selective arsenic-removing resin, selective mercury-removing resin, selective lead-removing resin and selective divalent metal (copper/nickel and the like) ion-removing resin; more than two kinds of chelate resins specialized for removing a certain heavy metal ion are selected and organically combined to obtain the effect of efficiently, rapidly and conveniently removing the heavy metal ions in the liquid by utilizing the specific chelation of the functional groups of various modified chelate resins to different kinds of heavy metal ions. The method is simple and easy to use, is rapid in effect taking and is particularly applicable for removing the heavy metal ions in a traditional Chinese medicine extracting solution on site.
Description
Technical field
The present invention relates to a kind of method of removing heavy metal ion in the liquid, particularly relate to a kind of method that adopts the chelate resin associated treatment to remove heavy metal ion.
Background technology
The fast development of China's economy has caused very big destruction to ecological environment over nearly 30 years.The cultivation of Chinese medicine and plantation have received tremendous influence without doubt, and it is the subject matter that present Chinese medicine runs into that heavy-metal residual, aflatoxins, residues of pesticides, microorganism exceed standard.Being rooted in the hearts of the people of Along with people's growth in the living standard simultaneously and " people-oriented " idea, the safety problem of food and medicine more and more causes people's attention.Formulate in the law of international medicinal plant and traditional medicine product, rules, developed countries such as the U.S., European Union, Japan have been regarded as the first element with safety of products, and heavy metal, farming are residual, microorganism and external toxin are essential items for inspection.The big country that China produces as autonomic drug, influence for above-mentioned reasons, Chinese medicine general export volume only accounts for about 1% of cosmopolitian plant medicine sales volume at present.Heavy-metal residual, aflatoxins, residues of pesticides, microorganism exceed standard becomes " bottleneck " that Chinese medicine goes to the world.
Heavy metals exceeding standard incident in a lot of Chinese medicines took place since the nineties in 20th century, behind media report, had become the hot issue of international medical market.In " Screening Methods forDrugs and Heavy Metals in Chinese Patent Medicines " literary composition; A.M.Au points out: since nineteen ninety-five, he measures the content of beary metal such as lead, arsenic and mercury in nearly 500 Chinese medicine non-prescribed medicines (like " Angong Niuhuang Wan ", " flu is clear " capsule, " coptis bolus for clearing the upper heat ", " Liushen Pills ", " eight treasures (choice ingredients of certain special dishes) fresh breeze looses ", " detoxicating tablet of cow-bezoar " etc.) of California, USA with Perkin Elmer Model 3100 type atomic absorption spectrophotometers with his assistants.The result shows: " contain without the pharmaceutical compositions of indicating in the Chinese medicine to be tested about 10% and/or contain and be enough to metallic elements such as lead, mercury and arsenic that the people is poisoned.Wherein: " lead content is from 1ppm to 184ppm; Arsenic content is from 68ppm to 114000ppm; Mercury content is from 329ppm to 5070ppm " (Bull.Environ.Contam.Toxicol., 2000,65,112-119).This shows the matter of utmost importance that the residue problem of heavy metal has become Chinese medicine to face.Too high heavy-metal residual grievous injury the image of Chinese medicine, caused great economic loss to China.Therefore, the modernization of Chinese medicine must solve the problem that content of beary metal exceeds standard.
Heavy metal has caused the attention of countries in the world to the harm of biology.Current, the countries and regions of import Chinese medicine and Chinese patent drug have all proposed strict demand to the content of beary metal of Chinese medicine, Chinese patent drug in the world.China country Ministry of Foreign Trade and Economic Cooperation puts into effect and " medicinal plant and preparation are imported and exported green industry standard " limit index of enforcement is: total metals is answered≤20.0mg/kg; Plumbous (Pb)≤5.0mg/kg; Cadmium (Cd)≤0.3mg/kg; Mercury (Hg)≤0.2mg/kg, copper (Cu)≤20.0mg/kg, arsenic (As)≤2.0mg/kg.Therefore, the active ingredient in guaranteeing Chinese medicine is not destroyed, keeps to reduce as much as possible under the prerequisite of drug effect the focus that content of beary metal in the Chinese medicine has become the traditional Chinese medicine research field.
At present general water extracts the effective ingredient in the Chinese medicine, obtains Chinese medicine extract.Can process various formulations such as tablet, pill, pulvis by Chinese medicine extract through subsequent technique.Heavy metal generally exists with ionic species in Chinese medicine extract.Guaranteeing that Effective Components of Chinese Herb is not destroyed, guarantees can adopt methods such as solvent extraction and separation method, membrane separation process, ion-exchange treatment method and absorption method to remove the heavy metal ion in the Chinese medicine extract under the prerequisite of quality and curative effect of Chinese medicine.The application of the heavy metal ions of these methods in waste water such as removal electroplate liquid is very extensive, but the report of the heavy metal ions in removing Chinese medicine extract is fewer.
The solvent extraction and separation ratio juris is to adopt the higher complexing agent of selectivity with the heavy metal ion complexing in the Chinese medicine extract, with organic solvent complex compound is extracted then, makes complexing agent and organic solvent realize regeneration through separating complexing again.
Membrane separation process is to utilize the difference of film to the differential permeability ability of each component in the mixture; Pore size through controlling diaphragm; With outside energy or chemical potential difference is motive force, and some material can some being selected property of material be held back through film, thereby reaches the purpose of separating mixture.When the application membrane separation process is removed the heavy metal ion in the Chinese medicine extract, adopt electroosmose process to wait usually and realize.
The ion-exchange treatment method is to utilize ion-exchanger to remove the method for heavy metal ion.Ion-exchange is to lean on self-contained ion that can move freely of exchanger and heavy metal ion in the Chinese medicine extract that is processed to exchange to realize.The power that promotes ion-exchange is that functional group on interionic concentration difference and the exchanger is to the affinity of heavy metal ion.The heavy metal ion that in most cases is processed in the solution is to be adsorbed earlier, to be exchanged.Therefore, ion-exchanger has absorption, exchange double effects.Ion-exchanger commonly used has ion exchange resin, zeolite etc.
Absorption method is to utilize the unique texture of adsorbent, interacts or forms the method that form such as surperficial hydrogen bond is removed the heavy metal ion in the Chinese medicine extract through surface adsorption, surface electrical.Adsorbent commonly used has active carbon, macroporous absorbent resin etc.
All there is shortcoming more or less in the method that above-mentioned usefulness removes the heavy metal ion in the Chinese medicine extract, these drawbacks limit they promotion and application in actual production.
For the solvent extraction and separation method, solvent in extraction process, take place easily to run off and in complexing agent and solvent reclamation process a large amount of energy resource consumptions make the application of this method be restricted.Simultaneously, the organic solvent that must use in the solvent extraction and separation method can be extracted out the effective ingredient in the Chinese medicine extract and take away, and this will have a strong impact on the drug effect of Chinese medicine.These shortcomings make the application of solvent extraction and separation method receive very big restriction.
For membrane separation process because its separation function relies on film to realize, the pollution of film and the decay of flux in use always take place, therefore need often to clean and maintenance, this big limitations the promotion and application of membrane separation process.The composition of the unusual complicacy of Chinese medicine extract has increased the contaminated probability of film simultaneously.
For the ion-exchange treatment method, ion-exchanger generally all demonstrates certain Acidity of Aikalinity, and this has certain destruction to the effective ingredient in the Chinese medicine extract; Simultaneously, the electric charge that carries of ion-exchanger itself also might exert an influence to the effective ingredient in the Chinese medicine extract.This has just limited the application of the heavy metal ions of ion-exchange in removing Chinese medicine.
For absorption method, the effective ingredient in the Chinese medicine extract is prone to be adsorbed, the difficult reason such as be adsorbed of heavy metal ion makes the application of absorption method receive very big restriction.Simultaneously, the regeneration cycle of adsorbent is difficult for realizing.
In sum, the method novel, efficient, that rapidly, easily remove heavy metal ion in Chinese medicine extract of development with industrial prospect has very important significance.
Summary of the invention
The purpose of this invention is to provide a kind of novel, efficient, remove the method for the heavy metal ion in the liquid rapidly, easily.
For achieving the above object; The technical scheme that is adopted is: a kind of method that adopts the chelate resin associated treatment to remove heavy metal ion; It adds at least two kinds following chelate resin in the liquid of need removal heavy metal ion, said chelate resin comprises bivalent metal ion resins such as selectivity arsenic removal resin, selectivity removal of mercury resin, selectivity deleading resin, selectivity copper removal/nickel; Wherein selectivity arsenic removal resin is the chelating type benzamido group methylene phosphoric acid resin of the lanthanum ion of iron ion that trivalent is arranged through the load that obtains after the chemical modification or trivalent; Selectivity removal of mercury resin is the chelating type thiol resin through obtaining after the chemical modification; Selectivity deleading resin is the chelating type amine resin through obtaining after the chemical modification; Selectivity copper removal/nickel bivalent metal ion resin is chelating type benzamido group methylene phosphoric acid resin or the chelating type imido oxalic acid base resin through obtaining after the chemical modification through obtaining after the chemical modification.
Utilizing chelate resin to remove heavy metal ion, is the principle of having utilized chelation.We are through various chemical modifications; Can be incorporated on the macromolecule resin with functional group's (for example sulfydryl, imido oxalic acid or its salt, benzamido group methylene phosphoric acid or its salt) etc. that heavy metal ion forms coordinate bond having, these resins through chemical modifications just are called as chelate resin.Functional group on the chelate resin can form highly stable chelate with heavy metal cation, and Here it is utilizes chelate resin to remove the principle of heavy metal cation.
For the chelating resin of the selectivity removal of mercury, its functional group is a sulfydryl.Because the stability constant of the chelate that sulfydryl and mercury cation form ratio is high doubly a lot of with the stability constant of the chelate that other heavy metal cations form, so can call selectivity removal of mercury resin to thiol resin.
Can explain selectivity copper removal, deleading thus, remove cadmium, remove nickel resin choice property.These resin choice property all are the conclusion that obtains later on through concrete experiment usually.
Can only the removal of mercury but this is not a selectivity removal of mercury resin, selectivity is removed resin of copper can only copper removal.These resins equally have chelation for the metal ion of other types, but stability constant is smaller possibly.
Selectivity arsenic removal resin is different with the principle that above-mentioned selectivity is removed the metal cation resin.In Chinese medicine extract, arsenic element generally occurs with the form of acid ion, for example arsenate anion or arsenous anion anion.Be that the iron ion of trivalent or the lanthanum ion of trivalent are loaded on the polystyrene amido methylene phosphoric acid resin (also being through chelation) at present; Form chelate through the iron of arsenate anion or arsenous anion anion and trivalent or the lanthanum of trivalent then, thereby arsenic is removed.
Above-mentioned method, the removal amount that wherein said every kind of chelate resin can be removed heavy metal ion is: selectivity arsenic removal resin: 0.5mmol/g resin; Selectivity removal of mercury resin: 0.8-6.5mmol/g resin; Selectivity deleading resin: 0.4-9.0mmol/g resin; Selectivity copper removal/nickel bivalent metal ion resin: 0.6-2.0mmol/g resin.The actual use amount of general resin is greater than its removal amount.
Wherein, described selectivity arsenic removal resin can be selected SQ407 (polystyrene load iron) resin that Jiangsu Su Qing group produces.
LS-3000 type resin, Tianjin Nankai that D405 type resin, the Xi'an that described selectivity removal of mercury resin can select Jiangsu Su Qing group to produce blue dark extraordinary resin Co., Ltd produces and the HCS101-1 type resin that becomes chemical plant production etc.
D201 type resin, Anhui Samsung resin Science and Technology Ltd. 330 type resins that described selectivity deleading resin can select Zhengguang Resin Co., Ltd. to produce.
D402 macropore styrene chelating property resin, west, Zhengzhou electric power resin that bivalent metal ion resins such as described selectivity copper removal, nickel can select Shanghai Huazhen Science and Technology Co., Ltd. to produce are sold the C900 type resin that Co., Ltd sells.
The various resins that the present invention adopted are bought easily.
Said method especially is fit to be applied in the heavy metal ion of removing Chinese medicine extract.
When utilizing above-mentioned multiple chelate resin synergy to remove the heavy metal ion in the Chinese medicine extract, method is following:
Take by weighing bivalent metal ion resins such as a certain amount of selectivity arsenic removal resin, selectivity removal of mercury resin, selectivity deleading resin, selectivity copper removal, nickel; Join in the Chinese medicine extract; Vigorous stirring 30-90 minute, filter and obtain treated Chinese medicine extract.Adopt inductively coupled plasma emission spectrography (ICP-AES) to measure the content of the heavy metal ion in the Chinese medicine extract before and after handling, to confirm removal effect.
Technique scheme has following advantage: from the macromolecule chelating resin of easy purchase; Utilize the specificity chelation of the functional group of the chelate resin behind the various modifying and decoratings to different types of heavy metal ion; Select the chelating property resin of removing certain heavy metal ion that is exclusively used in more than two kinds; And, obtain the effect of heavy metal ion in efficient, quick, the convenient removal liquid with after its combination.This method is simple and easy to use; And instant effect; Be particularly useful for the on-the-spot heavy metal ion of removing in the Chinese medicine extract, do not have the shortcoming of methods such as normally used membrane separation process, solvent extraction and separation method, absorption method and ion-exchange treatment method, adsorb various heavy metal ion and have very strong high specificity; And not adsorbing the active ingredient in the Chinese medicine extract basically, is a kind of method with industrial prospect that can promote.
The specific embodiment
Below in conjunction with embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
Embodiment 1
Contrast " medicinal plant and preparation are imported and exported green industry standard ", preparation contains Pb
2+, Cu
2+, Cd
2+, Hg
2+Concentration is the standard liquid of 20mg/L, 40mg/L, 2mg/L, 2mg/L.Take by weighing the D405 type resin of Jiangsu Su Qing group production, the D402 macropore styrene chelating property resin that Shanghai Huazhen Science and Technology Co., Ltd. produces, each 5 gram of D201 type resin that Zhengguang Resin Co., Ltd. produces respectively, pour into after the mixing in 100 ml beakers.Accurately measure and contain Pb
2+, Cu
2+, Cd
2+, Hg
2+Concentration is the standard liquid 50mL of 20mg/L, 40mg/L, 2mg/L, 2mg/L, pours in this beaker.After the vigorous stirring 90 minutes, remove by filter resin, filtrating is measured Pb with Varian 700 type inductively coupled plasma emission spectrographies (ICP-AES)
2+, Cu
2+, Cd
2+, Hg
2+Concentration.Result such as following table:
| The heavy metal element of being measured | Before handling (mg/L) | Handle back (mg/L) | Clearance (%) |
| Plumbous | 20 | 0.0 | 100 |
| Cadmium | 2 | 0.0 | 100 |
| Copper | 40 | 0.0 | 100 |
| Mercury | 2 | 0.0 | 100 |
This control experiment shows: concentration substantially exceeds the standard liquid of the content of beary metal of regulation in " medicinal plant and preparation are imported and exported green industry standard ", can't detect with inductively coupled plasma emission spectrography through heavy metal ion content after the multiple chelating resin associated treatment.
Embodiment 2
Get commercially available Radix Glycyrrhizae extractum powder 100 grams, it is dissolved with 500 gram water.In glycyrrhizic aqueous solution, add each 20 gram of D402 macropore styrene chelating property resin that LS-3000 type resin, Anhui Samsung resin Science and Technology Ltd. 330 type resins and Shanghai Huazhen Science and Technology Co., Ltd. that SQ407 (polystyrene load iron) resin, Xi'an that Jiangsu Su Qing group produces blue dark extraordinary resin Co., Ltd produces produce; After the vigorous stirring 30 minutes; Filter, collect filtrating.
Measure the content of lead, cadmium, copper, mercury and arsenic in the glycyrrhizic aqueous solution of handling front and back with Varian 700 type inductively coupled plasma emission spectrographies (ICP-AES), the result is following:
| The heavy metal element of being measured | Before handling (mg/Kg) | Handle back (mg/Kg) | Clearance (%) |
| Plumbous | 3.0 | 0.0 | 100 |
| Cadmium | 1.2 | 0.0 | 100 |
| Copper | 1.7 | 0.0 | 100 |
| Mercury | 0.0 | 0.0 | 100 |
| Arsenic | 235.2 | 0.0 | 100 |
This shows that the heavy metal ion content in the Radix Glycyrrhizae solution after multiple chelating resin associated treatment can't detect with inductively coupled plasma emission spectrography.
Embodiment 3
Get commercially available Radix Isatidis extractum powder 1000 grams, it is dissolved with 5000 gram water.In its aqueous solution, add SQ407 (polystyrene load iron) resin, Tianjin Nankai of Jiangsu Su Qing group production and become the HCS101-1 type resin of chemical plant production, the D201 type resin of Zhengguang Resin Co., Ltd.'s production and the C900 type resin that west, Zhengzhou electric power resin is sold Co., Ltd's sale respectively 50 to restrain; After the vigorous stirring 90 minutes; Filter, collect filtrating.
Measure the content of lead, cadmium, copper, mercury and arsenic in the glycyrrhizic aqueous solution of handling front and back with Varian 700 type inductively coupled plasma emission spectrographies (ICP-AES), the result is following:
| The heavy metal element of being measured | Before handling (mg/Kg) | Handle back (mg/Kg) | Clearance (%) |
| Plumbous | 8.0 | 0.0 | 100 |
| Cadmium | 1.4 | 0.0 | 100 |
| Copper | 6.8 | 0.0 | 100 |
| Mercury | 0.0 | 0.0 | 100 |
| Arsenic | 274.6 | 0.0 | 100 |
This shows that the heavy metal ion content in the Radix Isatidis solution after multiple chelating resin associated treatment can't detect with inductively coupled plasma emission spectrography.
Embodiment 4
Get the commercially available Chinese medicine root of kudzu vine 250 grams, obtain 50-100 purpose powder after pulverizing with the microphyte pulverizer.This powder poured in 2 liters the beaker, add 1 liter of distilled water, soak after 30 minutes, be heated to boiling under the vigorous stirring, boil after 20 minutes and filter, collect filtrating; Filter cake adds 1 liter of distilled water again, and ebuillition of heated boils after 20 minutes and leaches liquid.Merge filtrating twice, remove most water under the decompression, obtain about 20 grams of paste solid.
This paste solid is dissolved in 100 ml waters; The D402 macropore styrene chelating property resin that SQ407 (polystyrene load iron) resin, Tianjin Nankai that adding Jiangsu Su Qing group produces and the HCS101-1 type resin that becomes chemical plant production, Shanghai Huazhen Science and Technology Co., Ltd. produce, the D201 type resin that Zhengguang Resin Co., Ltd. produces be 5 grams respectively; Vigorous stirring was filtered after 30 minutes, collected filtrating.
Measure the content of lead, cadmium, copper, mercury and arsenic in the glycyrrhizic aqueous solution of handling front and back with Varian 700 type inductively coupled plasma emission spectrographies (ICP-AES), the result is following:
| The heavy metal element of being measured | Before handling (mg/Kg) | Handle back (mg/Kg) | Clearance (%) |
| Plumbous | 3.0 | 0.0 | 100 |
| Cadmium | 0.9 | 0.0 | 100 |
| Copper | 15.5 | 0.0 | 100 |
| Mercury | 0.5 | 0.0 | 100 |
| Arsenic | 50.6 | 0.0 | 100 |
This shows that the heavy metal ion content in the root of kudzu vine solution after multiple chelating resin associated treatment can't detect with inductively coupled plasma emission spectrography.
Embodiment 5
Chinese medicine compound prescription: mulberry leaf 18 grams, chrysanthemum 18 grams, northern almond 15 grams, loguat leaf 18 grams, the root of kudzu vine 22.5 grams, Semen Coicis 22.5 grams, reed rhizome 22.5 grams, balloonflower root 18 grams, the capsule of weeping forsythia 18 grams, folium isatidis 22.5 grams, honeysuckle flower 18 grams, Radix Glycyrrhizae 9 grams.
Each composition in the above-mentioned compound is poured in 2.5 liters of glasswares, added water logging from the beginning and cross 1 centimetre of medicine, soak after 30 minutes, be heated to boiling, boil elimination medicine after 20 minutes, collect filtrating; In filter cake, add distilled water (water yield is with suitable for the first time) again, ebuillition of heated boils after 20 minutes and leaches liquid.Merge filtrating twice, steam most water under the decompression, obtain the paste solid.After this compound is fried in shallow oil 10 pairs, the paste solid is merged, obtain about 300 gram solid pastes.
Get these paste solid 50 grams and be dissolved in 300 ml waters; Add LS-3000 type resin, west, the Zhengzhou electric power resin that SQ407 (polystyrene load iron) resin, Xi'an that Jiangsu Su Qing group produces blue dark extraordinary resin Co., Ltd produces and sell C900 type resin, each 15 gram of Anhui Samsung resin Science and Technology Ltd. 330 type resins that Co., Ltd sells; Vigorous stirring was filtered after 75 minutes, collected filtrating.
Measure the content of lead, cadmium, copper, mercury and arsenic in the Chinese medicine compound prescription aqueous solution of handling front and back with Varian 700 type inductively coupled plasma emission spectrographies (ICP-AES), the result is following:
| The heavy metal element of being measured | Before handling (mg/Kg) | Handle back (mg/Kg) | Clearance (%) |
| Plumbous | 8.2 | 0.0 | 100 |
| Cadmium | 2.6 | 0.0 | 100 |
| Copper | 50.7 | 0.0 | 100 |
| Mercury | 3.0 | 0.0 | 100 |
| Arsenic | 180.9 | 0.0 | 100 |
This shows that the heavy metal ion content in the Chinese medicine compound prescription solution after multiple chelating resin associated treatment can't detect with inductively coupled plasma emission spectrography.
Embodiment 6
Get 100 milliliters of the ciders that certain company produces, add each 5 gram of D402 macropore styrene chelating property resin that Anhui Samsung resin Science and Technology Ltd. 330 type resins and Shanghai Huazhen Science and Technology Co., Ltd. produce, vigorous stirring was filtered after 30 minutes, collected and filtrated.
With the content of plumbous in the cider before and after the processing of Varian 700 type inductively coupled plasma emission spectrographies (ICP-AES) mensuration and nickel, the result is following:
| The heavy metal element of being measured | Before handling (mg/Kg) | Handle back (mg/Kg) | Clearance (%) |
| Plumbous | 1.2 | 0.0 | 100 |
| Nickel | 1.5 | 0.0 | 100 |
This shows that the heavy metal ion content in the cider after planting the chelating resin associated treatment can't detect with inductively coupled plasma emission spectrography.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (2)
1. method that adopts the chelate resin associated treatment to remove heavy metal ion; It is characterized in that; The following chelate resin that in the liquid of need removal heavy metal ion, adds at least two kinds, said chelate resin comprises selectivity arsenic removal resin, selectivity removal of mercury resin, selectivity deleading resin, selectivity copper removal/nickel bivalent metal ion resin; Wherein selectivity arsenic removal resin is the chelating type benzamido group methylene phosphoric acid resin of the lanthanum ion of iron ion that trivalent is arranged through the load that obtains after the chemical modification or trivalent; Selectivity removal of mercury resin is the chelating type thiol resin through obtaining after the chemical modification; Selectivity deleading resin is the chelating type amine resin through obtaining after the chemical modification; Selectivity copper removal/nickel bivalent metal ion resin is chelating type benzamido group methylene phosphoric acid resin or chelating type imido oxalic acid base resin through obtaining after the chemical modification;
Wherein, the removal amount of every kind of chelate resin removal heavy metal ion is: selectivity arsenic removal resin: 0.5mmol/g resin; Selectivity removal of mercury resin: 0.8-6.5mmol/g resin; Selectivity deleading resin: 0.4-9.0mmol resin; Selectivity copper removal/nickel bivalent metal ion resin: 0.6-2.0mmol/g resin;
Wherein, said selectivity arsenic removal resin is the SQ407 type polystyrene load iron resin that Jiangsu Su Qing group produces; Said selectivity removal of mercury resin is Jiangsu Su Qing group the D405 type resin, the Xi'an that produce blue dark extraordinary resin Co., Ltd LS-3000 type resin or Tianjin Nankai of producing and the HCS101-1 type resin that becomes chemical plant production; Said selectivity deleading resin is D201 type resin or the Anhui Samsung resin Science and Technology Ltd. 330 type resins that Zhengguang Resin Co., Ltd. produces; Said selectivity copper removal/nickel bivalent metal ion resin is that D402 macropore styrene chelating property resin or west, the Zhengzhou electric power resin that Shanghai Huazhen Science and Technology Co., Ltd. produces sold the C900 type resin that Co., Ltd sells.
2. the application of the described method of claim 1 in the heavy metal ion of removing Chinese medicine extract.
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| CN101803784B (en) * | 2010-04-26 | 2012-07-25 | 北京欧凯纳斯科技有限公司 | Method for removing heavy metal ions in fruit and vegetable juice by using chelate resin in cooperative treatment |
| CN102643990B (en) * | 2012-05-18 | 2014-03-12 | 南京大学 | Method for removing trace Cu in high-purity Ni by chelate resin |
| CN103505905B (en) * | 2012-06-18 | 2016-12-21 | 天津天士力现代中药资源有限公司 | The method that chelating resin removes traditional Chinese medicine heavy metal with amberlite oil/fat composition |
| CN103965272B (en) * | 2013-02-04 | 2016-06-08 | 沈阳天峰生物制药有限公司 | A kind of method removing heavy metal ion in stevioside |
| CN105731593B (en) * | 2014-12-10 | 2021-03-09 | 陶氏环球技术有限公司 | Method for removing mercury from solution |
| CN106701097A (en) * | 2016-12-23 | 2017-05-24 | 镇江华域环保设备制造有限公司 | Repair agent for treating heavy metal contaminated soil and application thereof |
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