CN103933950B - A kind of preparation method of luffa solid-loaded ionic-liquid adsorbent - Google Patents
A kind of preparation method of luffa solid-loaded ionic-liquid adsorbent Download PDFInfo
- Publication number
- CN103933950B CN103933950B CN201410188125.1A CN201410188125A CN103933950B CN 103933950 B CN103933950 B CN 103933950B CN 201410188125 A CN201410188125 A CN 201410188125A CN 103933950 B CN103933950 B CN 103933950B
- Authority
- CN
- China
- Prior art keywords
- luffa
- solid
- add
- liquid
- loaded ionic
- 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
Abstract
The invention discloses a kind of preparation method and application technology of luffa solid-loaded ionic-liquid adsorbent, feature is: by sponge gourd mellow fruit, peeling stoning, wash with water and remove earth and impurity, dry, pulverize, after the luffa drying of pulverizing with NaOH and hydrogen peroxide process, luffa must be oxidized, in the reactor, add by following composition mass percent, epoxychloropropane: 62 ~ 72%, oxidation luffa 15 ~ 28%, 70 ~ 80 DEG C of constant temperature, stir, reaction 40 ~ 60min, after cooling, add pyromellitic acid anhydride again: 4 ~ 10%, N-ethyl-3 picoline perbromate ion liquid: 2 ~ 6%, each component sum is absolutely, in 35 ± 2 DEG C of constant temperature, stir, reaction 48 ~ 60h, after cooling, suction filtration, spend deionized water, to filtrate is neutrality, after a small amount of ethanol washing, be placed in 50 DEG C of vacuum drying chambers dry, obtain luffa solid-loaded ionic-liquid adsorbent.This adsorbent has very high adsorption capacity to arsenic, excellent physical chemistry and mechanical performance, and power of regeneration is strong, Reusability often, the not only low but also environmental protection of cost.
Description
Technical field
The present invention relates to the technical field of a kind of preparation method of biological adsorption agent, particularly a kind of preparation method of luffa solid-loaded ionic-liquid adsorbent and the application technology to arsenic absorption in water.
Background technology
Ionic liquid is generally that inorganic anion that, structure asymmetric organic cation (as imidazoles, pyridine) relatively large by specific volume and volume are relatively little is (as Cl
-, Br
-deng) material be in a liquid state under room temperature or nearly room temperature that forms.Ionic liquid at room temperature is a kind of fine solvent, can dissolve polarity and nonpolar organic matter, inorganic matter, is easy to be separated, and can be recycled.Its liquid state range is very wide, without vapour pressure, non-volatile, can not environmental pollution be caused, be described as green solvent.
Carry out immobilizedly can obtaining the solid matter that supported ion liquid or surface have ionic liquid structure to ionic liquid.This had both combined the advantage of solid support material, also solve ionic liquid and be applied to losing issue in water environment, maintain again the physics and chemistry character of ionic liquid itself simultaneously, solve the residual and toxicity problem of ionic liquid in extract preferably, with in being separated of extract, solvent cross pollution, also there is obvious advantage.Supported ion liquid is prepared absorption and is had been reported, Wang Ruonan etc. have studied load imidazole type ion liquid silica gel and inhale material preparation (Wang Ruonan etc., the research of load imidazole type ion liquid silica gel suction material preparations and applicatio, Chinese environmental detection, 2013,29(2): 69 ~ 72); Peng Changhong etc. have studied the arsenic removal of ionic liquid loaded type carbon nanotube adsorption (; The long grand plasma fluid load type carbon nanotube adsorption Study on Removal of Arsenic of Peng, Central South University's journal (natural science edition), 2010,41(2): 416 ~ 421), but ionic liquid supported is had no report on luffa.
Arsenic is widely distributed at occurring in nature, is present in the rock in the earth's crust, soil, river, seawater and air.Arsenic-containing ores easily enters water body and moves after weathering, oxidation.Arsenic, as there being more supervirulent element, is extensively present in natural water and drinking water.The existence of arsenic is natural reaction (as: biologically active, geochemical reaction, volcano eruption etc.) and thinks discharge (as: pesticide, Chemical Manufacture, semiconductor manufacturing etc.) coefficient result.Arsenic is a kind of extremely toxic substance, mainly with As (III) and As(V) two kinds of valence states exist.The low-oxidation-state of arsenic is larger than the toxicity of high oxidation state.People drink and eat the water and food that contain arsenic for a long time, make arsenic element can cause organ-tissue and the mutations functionally such as Human Lung, liver, kidney at people's cylinder accumulation, serious caused canceration (as: cutaneum carcinoma, lung cancer, liver cancer, kidney, carcinoma of urinary bladder etc.).Therefore, to the waste water arsenic removal in drinking water in life and industrial production, being the important topic being related to the people's livelihood, is also the focus of domestic and international experts and scholars research.
The method of various process arsenic has absorption method, extraction, direct precipitation method, hyperfiltration and ion-exchange etc., and its ion exchange methods is modal method.Because ion exchange resin has good physicochemical property and abundant ion-exchange group, and can Reusability, so be widely used in the removal of waste water and Arsenic in Drinking Water.Jia Min etc. have studied the immobilized ion exchange resin of N-methylimidazole to the adsorbing separation of arsenic, maximum adsorption capacity is 67.2 mg/g(Jia Min etc., the immobilized ion exchange resin of N-methylimidazole to the adsorbing separation of arsenic, analytical chemistry, 2013,41(1): 57 ~ 62); Fan Wei etc. have studied the absorption property of hydrosulphonyl silane modified graphite oxide to arsenic, and maximum adsorption capacity is 24.45 mg/g(Fan Wei etc., hydrosulphonyl silane modified graphite oxide to the absorption property of arsenic, Environmental Chemistry, 2013,32(5): 810 ~ 818); Gao Po etc. have studied the synthesis of diethylene triamine base oxycellulose and the absorption property to uric acid and arsenic (III), maximum adsorption capacity is 0.411 mg/g(Gao Po etc., the synthesis of diethylene triamine base oxycellulose and the absorption property to uric acid and arsenic (III), Heilongjiang University's natural science journal, 2009,26(1): 98 ~ 103).These are all carry out modification to resin, graphite and cellulose, and the present invention carries out chemical modification to the luffa of natural regeneration.
Shortage of resources and environmental pollution have become two large subject matters of the world today, and therefore, utilize natural reproducible resource, development environment friendly product and technology will become the inexorable trend of sustainable development.Luffa is the withered old fruit of vascular bundle in the ripening fruits of Curcurbitaceae annual herb plant sponge gourd sponge gourd in other words.Sponge gourd is China's summer and autumn Common Vegetables, there is product most provinces and regions, the whole nation, for cultivation product, luffa is the regenerated resources that the earth enriches very much, have that light weight is inexpensive, the feature such as degradable and environmental friendliness, luffa is by the net of the thread fiber interweaving of multilayer, body is light, matter is tough and tensile, can not fracture, simultaneously containing xylan, mannosan, galactan etc., and it has hydrophily, also with abundant dentate, be easy to carry out chemical modification, domestic luffa is modified as the application of adsorbent in adsorption of metal ions.
Domestic luffa is as the application of adsorbent in adsorption of metal ions, application number is disclose luffa in the patent of 200810034734.6 to many kinds of metal ions absorption property and luffa as the application of adsorbent in adsorption of metal ions, and wherein luffa is to Cu
2+and Zn
2+desorption rate all about 40%, luffa is to Cu
2+adsorbance be respectively 0.16mmol/g, to Zn
2+adsorbance be about 0.39mmol/g, be that in the system of 1, desorption rate is respectively 46%, 47% at pH; Be the alkalization modifying method and the application thereof that disclose luffa in the patent of 200810034735.0 at application number, its alkali treatment luffa is to Zn
2+adsorbance comparatively Cu
2+height, and adsorbance gap is comparatively large, through Atomic absorption quantitative analysis, luffa is to Cu
2+adsorbance be about 7 ~ 8mg/g, to Zn
2+adsorbance be about 21 ~ 22mg/g; Be disclose the preparation method of etherized luffa and the application in adsorption of metal ions thereof in the patent of 200810034737.X at application number, its etherized luffa is to Fe
3+maximal absorptive capacity be 27.4mg/g.To Zn
2+maximal absorptive capacity be 36.3mg/g; Application number is disclose citric acid loofah sponge preparation method agent application in the patent of 201110276244.9, and its citric acid loofah sponge is to Cd
2+adsorption capacity can up to 189mg/g, most high adsorption rate can reach 98.5%, to Pb
2+maximal absorptive capacity be 285mg/g, most high adsorption rate can reach 99.2%, is 316mg/g to the maximal absorptive capacity of methylene blue, and most high adsorption rate can reach 96.2%, has carboxylic acid characteristic, can directly to absorption and the wash-out of metal ion species each in water body, organic dyestuff.Natural macromolecular material is utilized as adsorbent and has the advantages such as renewable, degradable, environmental protection be friendly, cheap, is important living resources.
Summary of the invention
An object of the present invention is to provide a kind of preparation method of luffa solid-loaded ionic-liquid adsorbent, and a kind of luffa solid-loaded ionic-liquid adsorbent of acquisition carries out adsorbing separation to arsenic in aqueous systems.
Object of the present invention is achieved through the following technical solutions.
A preparation method for luffa solid-loaded ionic-liquid adsorbent, is characterised in that the method has following processing step:
(1) luffa pretreatment: luffa derives from sponge gourd fruit, is obtained by peeling stoning, pulverizes, by 10 ~ 20 object sieve, obtain pretreatment luffa after the clear water cleaning, drying that are cut into small pieces by luffa;
(2) be oxidized luffa: in the reactor, add by following composition mass percentage concentration, NaOH: 0.6 ~ 2.0%, deionized water: 59 ~ 78%, after stirring and dissolving, is chilled to room temperature, add 30% hydrogen peroxide: 12 ~ 22%, mixing, then add pretreatment luffa: 8 ~ 18%, each component sum is absolutely, soaking at room temperature 24 ~ 30 h, then boils 10 ~ 30min, deionized water is spent to neutral after cooling, suction filtration, dries at 80 ~ 90 DEG C, obtains being oxidized luffa;
(3) preparation of luffa solid-loaded ionic-liquid adsorbent: in the reactor, add by following composition mass percentage concentration, epoxychloropropane: 62 ~ 72%, oxidation luffa 15 ~ 28%, in 70 ~ 80 DEG C of constant temperature, stir, reaction 40 ~ 60min, after cooling, add pyromellitic acid anhydride again: 4 ~ 10%, N-ethyl-3 picoline perbromate ion liquid: 2 ~ 6%, each component sum is absolutely, in 35 ± 2 DEG C of constant temperature, stir, reaction 48 ~ 60h, after cooling, suction filtration, spend deionized water, to filtrate is neutrality, after a small amount of ethanol washing, be placed in 50 DEG C of vacuum drying chambers dry, obtain luffa solid-loaded ionic-liquid adsorbent.
Another object of the present invention be to provide luffa solid-loaded ionic-liquid adsorbent in aqueous systems to the absorption of arsenic, feature is: the luffa solid-loaded ionic-liquid adsorbent deionized water for preparing is soaked 1 ~ 2h, adsorbs by static method.
The luffa solid-loaded ionic-liquid adsorbent deionized water prepared is soaked 1 ~ 2h, adsorbs by dynamic method.
Compared with the prior art, tool has the following advantages and beneficial effect in the present invention:
(1) the luffa solid-loaded ionic-liquid adsorbent that the present invention obtains has good physical and chemical stability and excellent mechanical strength, adsorption capacity is large, maximum adsorption capacity reaches 101.25 mg/g, mechanical strength is high, wear-resistingly can reach more than 10 times by Reusability number of times, the speed of absorption is fast, and desorption performance is good, can use within the scope of wider soda acid.
(2) the luffa solid-loaded ionic-liquid adsorbent that the present invention obtains both had had the advantage of solid support material, also solved ionic liquid and was applied to losing issue in water environment.
(3) good stability is natural green product, regrown material, and discarded object is biodegradable;
(4) condition of the process entails synthesized easily controls, and energy consumption is low, simple to operate, belongs to process for cleanly preparing, is easy to suitability for industrialized production.
Detailed description of the invention
Embodiment 1
(1) luffa pretreatment: luffa derives from sponge gourd fruit, is obtained by peeling stoning, pulverizes, by 10 object sieve, obtain pretreatment luffa after the clear water cleaning, drying that are cut into small pieces by luffa;
(2) luffa is oxidized: in the reactor, add 1.0 g NaOH respectively, 70mL deionized water, after stirring and dissolving, be chilled to room temperature, add 18mL30% hydrogen peroxide, mixing, add 12g pretreatment luffa again, soaking at room temperature 28 h, then boil 20min, deionized water is spent to neutral after cooling, suction filtration, dries at 85 DEG C, obtains being oxidized luffa;
(3) preparation of luffa solid-loaded ionic-liquid adsorbent: in the reactor, add 40mL epoxychloropropane respectively, 15g is oxidized luffa, in 70 DEG C of constant temperature, stirring, reaction 60min, after cooling, add 4mL pyromellitic acid anhydride and 3gN-ethyl again--picoline perbromate ion liquid, in 35 ± 2 DEG C of constant temperature, stirring, reaction 50h, after cooling, suction filtration, spends deionized water, to filtrate is neutrality, after a small amount of ethanol washing, be placed in 50 DEG C of vacuum drying chambers dry, obtain luffa solid-loaded ionic-liquid adsorbent.
Embodiment 2
(1) luffa pretreatment: luffa derives from sponge gourd fruit, is obtained by peeling stoning, pulverizes, by 20 object sieve, obtain pretreatment luffa after the clear water cleaning, drying that are cut into small pieces by luffa;
(2) luffa is oxidized: in the reactor, add 0.6g NaOH respectively, 62mL deionized water, after stirring and dissolving, be chilled to room temperature, add 22mL30% hydrogen peroxide, mixing, add 15g pretreatment luffa again, soaking at room temperature 30 h, then boil 20min, deionized water is spent to neutral after cooling, suction filtration, dries at 90 DEG C, obtains being oxidized luffa;
(3) preparation of luffa solid-loaded ionic-liquid adsorbent: in the reactor, add 55mL epoxychloropropane respectively, 18g is oxidized luffa, in 75 DEG C of constant temperature, stirring, reaction 50min, after cooling, add 5mL pyromellitic acid anhydride and 2gN-ethyl again--picoline perbromate ion liquid, in 35 ± 2 DEG C of constant temperature, stirring, reaction 48h, after cooling, suction filtration, spends deionized water, to filtrate is neutrality, after a small amount of ethanol washing, be placed in 50 DEG C of vacuum drying chambers dry, obtain luffa solid-loaded ionic-liquid adsorbent.
Embodiment 3
(1) luffa pretreatment: luffa derives from sponge gourd fruit, is obtained by peeling stoning, pulverizes, by 10 object sieve, obtain pretreatment luffa after the clear water cleaning, drying that are cut into small pieces by luffa;
(2) luffa is oxidized: in the reactor, add 1.5 g NaOH respectively, 78mL deionized water, after stirring and dissolving, be chilled to room temperature, add 12mL30% hydrogen peroxide, mixing, add 8g pretreatment luffa again, soaking at room temperature 24 h, then boil 30min, deionized water is spent to neutral after cooling, suction filtration, dries at 80 DEG C, obtains being oxidized luffa;
(3) preparation of luffa solid-loaded ionic-liquid adsorbent: in the reactor, add 25mL epoxychloropropane respectively, 8g is oxidized luffa, in 80 DEG C of constant temperature, stirring, reaction 40min, after cooling, add 2mL pyromellitic acid anhydride and 1gN-ethyl again--picoline perbromate ion liquid, in 35 ± 2 DEG C of constant temperature, stirring, reaction 55h, after cooling, suction filtration, spends deionized water, to filtrate is neutrality, after a small amount of ethanol washing, be placed in 50 DEG C of vacuum drying chambers dry, obtain luffa solid-loaded ionic-liquid adsorbent.
Embodiment 4
(1) luffa pretreatment: luffa derives from sponge gourd fruit, is obtained by peeling stoning, pulverizes, by 20 object sieve, obtain pretreatment luffa after the clear water cleaning, drying that are cut into small pieces by luffa;
(2) luffa is oxidized: in the reactor, add 1.2 g NaOH respectively, 73mL deionized water, after stirring and dissolving, be chilled to room temperature, add 15mL30% hydrogen peroxide, mixing, add 10g pretreatment luffa again, soaking at room temperature 26h, then boil 25min, deionized water is spent to neutral after cooling, suction filtration, dries at 85 DEG C, obtains being oxidized luffa;
(3) preparation of luffa solid-loaded ionic-liquid adsorbent: in the reactor, add 35mL epoxychloropropane respectively, 8g is oxidized luffa, in 75 DEG C of constant temperature, stirring, reaction 50min, after cooling, add 3mL pyromellitic acid anhydride and 3gN-ethyl again--picoline perbromate ion liquid, in 35 ± 2 DEG C of constant temperature, stirring, reaction 60h, after cooling, suction filtration, spends deionized water, to filtrate is neutrality, after a small amount of ethanol washing, be placed in 50 DEG C of vacuum drying chambers dry, obtain luffa solid-loaded ionic-liquid adsorbent.
Embodiment 5
(1) luffa pretreatment: luffa derives from sponge gourd fruit, is obtained by peeling stoning, pulverizes, by 10 object sieve, obtain pretreatment luffa after the clear water cleaning, drying that are cut into small pieces by luffa;
(2) luffa is oxidized: in the reactor, add 0.8 g NaOH respectively, 77mL deionized water, after stirring and dissolving, be chilled to room temperature, add 12mL30% hydrogen peroxide, mixing, add 10g pretreatment luffa again, soaking at room temperature 25h, then boil 20min, deionized water is spent to neutral after cooling, suction filtration, dries at 85 DEG C, obtains being oxidized luffa;
(3) preparation of luffa solid-loaded ionic-liquid adsorbent: in the reactor, add 65mL epoxychloropropane respectively, 20g is oxidized luffa, in 80 DEG C of constant temperature, stirring, reaction 40min, after cooling, add 10mL pyromellitic acid anhydride and 5gN-ethyl again--picoline perbromate ion liquid, in 35 ± 2 DEG C of constant temperature, stirring, reaction 58h, after cooling, suction filtration, spends deionized water, to filtrate is neutrality, after a small amount of ethanol washing, be placed in 50 DEG C of vacuum drying chambers dry, obtain luffa solid-loaded ionic-liquid adsorbent.
Embodiment 6
Take 0.50g luffa solid-loaded ionic-liquid adsorbent and be placed in 250mL tool plug conical flask, adding 100mL concentration is in 600mg/L arsenic standard solution, be in 2.0 ~ 10.0 scopes with the pH value of diluted acid or alkali regulation system, at room temperature shake absorption 20 ~ 30min, get supernatant, electrochemically measure the concentration of arsenic, according to the concentration difference of arsenic in water before and after absorption, calculate the adsorption capacity of luffa solid-loaded ionic-liquid adsorbent, the adsorption capacity result of luffa solid-loaded ionic-liquid adsorbent to arsenic obtained by embodiment 1 ~ 5 lists table 1. in
PH value adsorbent adsorption capacity to arsenic in 3.0 ~ 7.5 scopes is maximum and stable as seen from Table 1, at room temperature shakes absorption 30 min, and this absorption of arsyl is complete, and the adsorption capacity of arsenic can reach 101.25 mg/g.
Table 1 luffa solid-loaded ionic-liquid adsorbent is to the adsorption capacity of arsenic and clearance measurement result
| Adsorbent title | pH | Adsorption time (min) | Arsenic adsorption capacity (mg/g) | Arsenic removal rate (%) |
| Embodiment 1 | 2.0 | 20 | 101.25 | 95.82 |
| Embodiment 1 | 3.0 | 30 | 100.21 | 97.62 |
| Embodiment 2 | 4.0 | 25 | 99.89 | 95.60 |
| Embodiment 2 | 5.0 | 20 | 100.12 | 98.20 |
| Embodiment 3 | 6.0 | 25 | 101.12 | 97.98 |
| Embodiment 3 | 7.0 | 30 | 101.01 | 98.65 |
| Embodiment 4 | 7.5 | 20 | 99.98 | 97.89 |
| Embodiment 4 | 8.0 | 25 | 100.62 | 96.12 |
| Embodiment 5 | 9.0 | 30 | 100.87 | 99.10 |
| Embodiment 5 | 10.0 | 25 | 101.15 | 98.21 |
Embodiment 7
Take 1.0g luffa solid-loaded ionic-liquid adsorbent and be placed in 250mL tool plug conical flask, adding 100mL concentration is in 200mg/L arsenic standard solution, be in 3.0 ~ 7.5 scopes with the pH value of diluted acid or alkali regulation system, at room temperature concussion absorption 30min, get supernatant, electrochemically measure the concentration of arsenic, according to the concentration difference of arsenic in water before and after absorption, calculate luffa solid-loaded ionic-liquid adsorbent to the clearance of arsenic, the clearance result of luffa solid-loaded ionic-liquid adsorbent to arsenic obtained by embodiment 1 ~ 5 lists this adsorbent of table 1. in the clearance of arsenic in water all more than 95.6%, reach as high as 99.1%.
Claims (2)
1. a preparation method for luffa solid-loaded ionic-liquid adsorbent, is characterised in that the method has following processing step:
(1) luffa pretreatment: luffa derives from sponge gourd fruit, is obtained by peeling stoning, pulverizes, by 10 ~ 20 object sieve, obtain pretreatment luffa after the clear water cleaning, drying that are cut into small pieces by luffa;
(2) be oxidized luffa: in the reactor, add by following composition mass percentage concentration, NaOH: 0.6 ~ 2.0%, deionized water: 59 ~ 78%, after stirring and dissolving, is chilled to room temperature, add 30% hydrogen peroxide: 12 ~ 22%, mixing, then add pretreatment luffa: 8 ~ 18%, each component sum is absolutely, soaking at room temperature 24 ~ 30h, then boils 10 ~ 30min, deionized water is spent to neutral after cooling, suction filtration, dries at 80 ~ 90 DEG C, obtains being oxidized luffa;
(3) preparation of luffa solid-loaded ionic-liquid adsorbent: in the reactor, add by following composition mass percentage concentration, epoxychloropropane: 62 ~ 72%, oxidation luffa 15 ~ 28%, in 70 ~ 80 DEG C of constant temperature, stir, reaction 40 ~ 60min, after cooling, add pyromellitic acid anhydride again: 4 ~ 10%, N-ethyl-3 picoline perbromate ion liquid: 2 ~ 6%, each component sum is absolutely, in 35 ± 2 DEG C of constant temperature, stir, reaction 48 ~ 60h, after cooling, suction filtration, spend deionized water, to filtrate is neutrality, after a small amount of ethanol washing, be placed in 50 DEG C of vacuum drying chambers dry, obtain luffa solid-loaded ionic-liquid adsorbent.
2. the luffa solid-loaded ionic-liquid adsorbent prepared of preparation method according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410188125.1A CN103933950B (en) | 2014-05-07 | 2014-05-07 | A kind of preparation method of luffa solid-loaded ionic-liquid adsorbent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410188125.1A CN103933950B (en) | 2014-05-07 | 2014-05-07 | A kind of preparation method of luffa solid-loaded ionic-liquid adsorbent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103933950A CN103933950A (en) | 2014-07-23 |
| CN103933950B true CN103933950B (en) | 2015-10-21 |
Family
ID=51181981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410188125.1A Expired - Fee Related CN103933950B (en) | 2014-05-07 | 2014-05-07 | A kind of preparation method of luffa solid-loaded ionic-liquid adsorbent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103933950B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104289191B (en) * | 2014-09-10 | 2016-04-20 | 济南大学 | A kind of preparation method of solid-loaded ionic-liquid porous dextrangel adsorbent |
| CN106629969A (en) * | 2016-11-09 | 2017-05-10 | 广州城辉环保科技有限公司 | Adsorption material used for removing heavy metal ions in landfill leachate, and preparation method thereof |
| CN108939117A (en) * | 2018-07-05 | 2018-12-07 | 吴亚琴 | A kind of preparation method of deodorant for refrigerator |
| CN114797795B (en) * | 2021-01-22 | 2024-01-05 | 西南科技大学 | Using GMA/H 3 PO 4 Method for treating uranium-containing wastewater by modified natural fibers |
| CN115591272B (en) * | 2022-10-27 | 2023-04-07 | 大连科利德光电子材料有限公司 | Method and system for purifying silicon-based precursor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101049575A (en) * | 2007-04-27 | 2007-10-10 | 陕西师范大学 | Solid carried multilaminar ion liquid, preparation method and application |
| CN101239303A (en) * | 2008-03-18 | 2008-08-13 | 上海大学 | Alkalization modifying method of luffa and use thereof |
| CN101670273B (en) * | 2009-09-28 | 2012-01-25 | 济南大学 | Preparation method and application of hydrosulphonyl functionalized loofah |
| KR20120115194A (en) * | 2012-09-05 | 2012-10-17 | 한민섭 | The method of purifying polluted air, The method of purifying fresh water, wastewater or sewage, The eco-friendly method of processing sludge as energy, The method of processing fuel to produce waste, The method of obtaining energy from sea water and the purification of radioactive waste To clean and clean contaminated blood and transfusion, to manufacture seawater as drinking water, to process all kinds of fluids such as alcohol, milk and soy, and to process all kinds of beverages. Process and purifier applied here |
| CN103566907B (en) * | 2013-11-13 | 2015-07-08 | 济南大学 | Preparation method and application of pyromellitic dianhydride modified loofah sponge adsorbent |
-
2014
- 2014-05-07 CN CN201410188125.1A patent/CN103933950B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103933950A (en) | 2014-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103933950B (en) | A kind of preparation method of luffa solid-loaded ionic-liquid adsorbent | |
| CN103933944B (en) | Gamma-aminopropyl-triethoxy-silane modifies the preparations and applicatio of loofah adsorbent | |
| CN105195100B (en) | A kind of preparation method of beta cyclodextrin modified loofah sponge adsorbent | |
| CN103566907B (en) | Preparation method and application of pyromellitic dianhydride modified loofah sponge adsorbent | |
| CN103464115B (en) | One preparations and applicatio growing flax adsorbent | |
| CN103920468B (en) | A kind of preparation method of ionic liquid loaded type palm bark adsorbent | |
| CN103933942B (en) | A kind of preparations and applicatio of mercaptopropyl trimethoxysilane modification flax adsorbent | |
| CN103464119B (en) | Preparation method and application of modified cysteine palm bark adsorbent | |
| CN106311158B (en) | A kind of preparation method of maleic acid modified magnetic loofah adsorbent | |
| CN102389777B (en) | Preparation method and use of sulfydryl cotton stalk bark | |
| CN104289187B (en) | A kind of preparation of dimethyl diallyl ammonium chloride modified loofah sponge adsorbent | |
| CN104289191B (en) | A kind of preparation method of solid-loaded ionic-liquid porous dextrangel adsorbent | |
| CN102430393A (en) | Citric acid loofah sponge preparation method and application | |
| CN103447009A (en) | Preparation and application of cysteine modified loofah adsorbent | |
| CN101670273B (en) | Preparation method and application of hydrosulphonyl functionalized loofah | |
| CN104226270A (en) | Modified preparation method for corn straw capable of adsorbing arsenic in water | |
| CN107456954A (en) | A kind of preparation method of modified porous magnetic luffa complex microsphere | |
| CN105195099A (en) | Preparation method of beta-cyclodextrin modified macroporous amino glucan adsorbent | |
| CN104492391A (en) | Preparation method of chitosan modified albumin nanosphere heavy metal adsorption material | |
| CN105080511B (en) | A kind of preparation method and application of corn stalk fiber element xanthic acid magnesium salts | |
| CN106345432B (en) | A kind of preparation method of polyacrylamide modified magnetic loofah adsorbent | |
| CN106268675B (en) | A kind of preparation of triethylene tetramine modified magnetic palm bark adsorbent | |
| CN103566908A (en) | Preparation method and application of pyromellitic dianhydride modified coconut shell adsorbent | |
| CN103464116A (en) | Preparation method and applications of epichlorohydrin-modified vegetable sponge adsorbent | |
| CN105688838A (en) | Method for preparing water treatment absorbent material by straws |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20190507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |