CN107597061A - It is a kind of to be used to remove Nanoscale Iron/exfoliated-graphite composite of Heavy Metals in Waters and preparation method thereof - Google Patents
It is a kind of to be used to remove Nanoscale Iron/exfoliated-graphite composite of Heavy Metals in Waters and preparation method thereof Download PDFInfo
- Publication number
- CN107597061A CN107597061A CN201711052947.7A CN201711052947A CN107597061A CN 107597061 A CN107597061 A CN 107597061A CN 201711052947 A CN201711052947 A CN 201711052947A CN 107597061 A CN107597061 A CN 107597061A
- Authority
- CN
- China
- Prior art keywords
- micro crystal
- expansion
- crystal graphite
- graphite
- nanoscale iron
- 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.)
- Pending
Links
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
The invention belongs to technical field of material,More particularly to a kind of Nanoscale Iron/exfoliated-graphite composite for being used to remove Heavy Metals in Waters and preparation method thereof,The present invention is using micro crystal graphite as raw material,First time chemical graft processing is carried out successively,Ferric chloride solution single-steeping,First time high-temperature expansion,Ferric chloride solution double-steeping,Sodium borohydride solution reacts,Second of high-temperature expansion,Finally obtain Nanoscale Iron/expansion micro crystal graphite composite,Scientific creativity of the present invention be with micro crystal graphite be raw material,It is rational that first insert layer treatment temperature is set,Double-steeping processing and secondary high-temperature expansion,Ensure the intercalation effect and expansion multiple of micro crystal graphite,Original micro crystal graphite structure is remained to greatest extent,The load capacity of zeroth order Nanoscale Iron and the porosity of composite are also added to greatest extent simultaneously,Make material that there is stronger absorption property,Heavy metal ion has higher clearance.
Description
Technical field
The invention belongs to technical field of material, more particularly to a kind of be used to remove receiving for Heavy Metals in Waters
Meter Tie/exfoliated-graphite composite and preparation method thereof.
Background technology
In recent years with the fast development of China's industrial and agricultural production, there is the shape that heavy metal pollution takes place frequently, often sent out in China
Condition, wherein the most typical with pollutions such as lead, cadmiums.Heavy metal is difficult to degrade in the environment, can be in animals and plants cylinder accumulation, and passes through
Food chain is progressively enriched with, and is finally entered human body and is damaged, and is that the mankind are endangered with one of maximum pollutant.Therefore, water body by
It is one of subject matter that China's water safety faces to lack efficient recovery technique after to pollution.
The conventional processing method of heavy metal-polluted water includes chemical method, bioanalysis, physisorphtion etc., wherein at absorption
Reason is because of its simple and convenient attention.The development and utilization of adsorbent is the key factor of adsorption treatment, is grown up in recent years
The active charcoal of adsorbent, organobentonite, molecular sieve, activated coal and clay etc., mostly based on micropore, surface is mostly occurred
Mono layer adsorption, and the shortcomings of costly, adsorption effect is bad be present.
Expanded graphite is because it has the characteristics such as loose, porous, specific surface area is big, and particularly it is with big mesopore and through hole
Pore structure, cohesion occurs for multi-molecular absorption or even in hole and provides condition, it is therefore, particularly modified using expanded graphite
Expanded graphite has very big development prospect as sorbent treatment water pollution aspect., will in the first research of this patent
Nanoscale Iron is supported on expanded graphite, is prepared for Nanoscale Iron/exfoliated-graphite composite, substantially increases heavy metal lead, six
The clearance of valency chromium and bivalent chromium；Nanoscale Iron is supported on expanded graphite in the technique on expanded graphite at present and typically uses scale
Prepared by graphite, when crystalline flake graphite prepares expanded graphite and is used for adsorbing heavy metal ion, because its lamella particle diameter is big, hole is big,
Return again in polluted-water so easilying lead to adsorbed heavy metal ion, micro crystal graphite be expanded into it is cotton-shaped, to a huge sum of money
The adsorption effect of category ion is better than crystalline flake graphite, but because the expansion effect of micro crystal graphite is poor, industrial cannot answer always
With if the expansion multiple that a kind of method improves micro crystal graphite can be found, being combined, be used for Nanoscale Iron in expansion process simultaneously
Heavy metal ion in adsorbed water body, the improvement to heavy metal in water ionic soil provide a kind of new approach.
The content of the invention
In view of the shortcomings of the prior art, for rationally, fully exploitation micro crystal graphite resource, breakthrough micro crystal graphite prepare expansion stone
The technical bottleneck of ink material, on the basis of micro crystal graphite mineralogy attributes research, the technical method of the present invention, its purpose are captured
Be to provide it is a kind of be used to remove Nanoscale Iron/exfoliated-graphite composite of Heavy Metals in Waters and preparation method thereof, to improve
Application effect of the expanded graphite in heavy metal containing wastewater treatment field.
The purpose of the present invention is achieved by the following technical programs：
A kind of preparation method for the Nanoscale Iron/expansion micro crystal graphite composite for removing Heavy Metals in Waters, including it is following
Step：
S1. micro crystal graphite raw material, crushing and grinding, to the microlite ink powder that granularity is 300~400 mesh are taken；
S2. the potassium permanganate pure with the perchloric acid and chemistry of mass fraction 70% of microlite ink powder obtained by step S1 is placed in
First time chemical graft processing is carried out in reaction unit, inflatable micro crystal graphite acidic suspension is obtained, gained may expand micro-
Spar ink acidic suspension filters, and then washs filtrate, dries, obtains and once may expand micro crystal graphite；
S3., expansible graphite is immersed in 0.2~2.0mol/L FeCl38~10h in solution；It is filtrated to get negative
Carry Fe3+Once may expand micro crystal graphite, at 70~80 DEG C dry 3~5h it is stand-by；
S4. by load Fe obtained by step S33+Once may expand micro crystal graphite be placed in graphite expansion stove, at 800 DEG C
First time high-temperature expansion is carried out, obtains loading Fe3+Once expansion micro crystal graphite；
S5. by load Fe obtained by step S43+Once expansion micro crystal graphite at 25~45 DEG C double-steeping 0.2~
2.0mol/L FeCl38~10h among solution, it is filtrated to get secondary load Fe3+Expansion micro crystal graphite；
S6. by secondary load Fe obtained by step S53+Expansion micro crystal graphite be added in the potassium borohydride aqueous solution, 25~
Filtered at 40 DEG C after 20~40min of stirring reaction, wash and obtain load Nanoscale Iron/expansion micro crystal graphite of low bulk multiplying power and answer
Condensation material；
S7. it is the load Nanoscale Iron of low bulk multiplying power obtained by step S6/expansion micro crystal graphite composite is placed in graphite is swollen
In swollen stove, second of high-temperature expansion is carried out at 900 DEG C, obtains Nanoscale Iron/expansion micro crystal graphite composite.
Preferably, the micro crystal graphite is Chenzhou City Shandong pool graphite powder, and its carbon content is 70~80%.
Preferably, it is 30 μm that filter membrane maximum diameter of hole used is filtered described in step S2；The washing, which refers to, to be used crossing filter residue
10% salt acid elution 3~5 times, then it is 7 or so to be washed with deionized to pH value；The drying refers to be done under the conditions of 60~80 DEG C
Dry 2h.
Preferably, first time chemical graft step includes described in step S2：
S21. it is 10~30 by liquid-solid ratio by perchloric acid and micro crystal graphite powder：1L/Kg is mixed evenly；
S22. it is 1 by the mass ratio of the micro crystal graphite powder and potassium permanganate：2~8 add potassium permanganate, at room temperature
After stirring, it is warming up to 30~60 DEG C and continues 1~3.0h of stirring reaction；
S23. adding deionized water makes the temperature in the reaction unit be increased to 60~100 DEG C, is further continued for stirring reaction 1
~3.0h.
Preferably, step S3 is concretely comprised the following steps：Expansible graphite is immersed in 1.0mol/L FeCl3In solution
9h；It is filtrated to get load Fe3+Once may expand micro crystal graphite, at 75 DEG C dry 4h it is stand-by.
Preferably, it is characterised in that step S4 carries out first time high-temperature expansion in graphite expansion stove and comprised the following steps：
S41. feed：Using conserving graphite expanding furnace, Fe will be loaded3+Once may expand micro crystal graphite put into by charging aperture
In burner hearth, the temperature of the charging aperture is 30 DEG C, and dispensing speed is 2Kg/h；
S42. expand：The expansion temperature of burner hearth is 800 DEG C, by controlled wind speed come to control Bulking Time be 5s；
S43. discharge：After completing step S42, discharging opening temperature is 50 DEG C, then collects to obtain load Fe in discharge outlet3+
Once expansion micro crystal graphite.
Preferably, the concentration of the potassium borohydride aqueous solution described in step S6 is 0.1~2.0mol/L.
Preferably, step S7 carries out second of high-temperature expansion in graphite expansion stove and comprised the following steps：
S71. feed：Using conserving graphite expanding furnace, by the load Nanoscale Iron of low bulk multiplying power/expansion micro crystal graphite composite
Put into by charging aperture in burner hearth, the temperature of the charging aperture is 30 DEG C, and dispensing speed is 2Kg/h；
S72. expand：The expansion temperature of burner hearth is 900 DEG C, by controlled wind speed come to control Bulking Time be 5s；
S73. discharge：After completing step S72, discharging opening temperature is 50 DEG C, then discharge outlet collect to obtain Nanoscale Iron/
Expand micro crystal graphite composite.
Present invention additionally comprises a kind of preparation side for the Nanoscale Iron/expansion micro crystal graphite composite for removing Heavy Metals in Waters
The Nanoscale Iron that method obtains/expansion micro crystal graphite composite.
Present invention additionally comprises a kind of preparation side for the Nanoscale Iron/expansion micro crystal graphite composite for removing Heavy Metals in Waters
The Nanoscale Iron that method obtains/expansion micro crystal graphite composite is removing the application of Heavy Metals in Waters.
Compared with the prior art, the beneficial effects of the present invention are：
(1) scientific creativity of the present invention be with micro crystal graphite be raw material, it is rational that first insert layer treatment temperature, two are set
Secondary impregnation and secondary high-temperature expansion, ensure the intercalation effect and expansion multiple of micro crystal graphite, remain original to greatest extent
There is micro crystal graphite structure, while also add the load capacity of zeroth order Nanoscale Iron and the porosity of composite to greatest extent, make
Material has stronger absorption property, and heavy metal ion has higher clearance.
(2) physical absorption when present invention load Nanoscale Iron exfoliated-graphite composite had both improved expanded graphite individualism
The problem of being easily desorbed, while the easily oxidizable energy of simple zeroth order Nanoscale Iron is also improved, expand its application in terms of environment
Scope.
(3) raw material used in method of the invention is cheap, with short production cycle, have obvious social and economic benefits,
It is easily achieved industrialized production.
Brief description of the drawings
Fig. 1 is the high temperature graphite expansion furnace structure figure of embodiment 1.
Embodiment
The present invention is further illustrated with reference to specific embodiment.Following examples are only illustrative examples, not structure
Into inappropriate limitation of the present invention, the multitude of different ways that the present invention can be limited and covered by the content of the invention is implemented.It is unless special
Do not mentionlet alone bright, the present invention reagent, compound and the equipment that use is the art conventional reagent, compound and equipment.
Embodiment 1
The method that the present invention prepares expansion microcrystalline graphite material with micro crystal graphite, including step are as follows：Including graphite expansion
Stove, using high-temperature expansion method, comprise the following steps：
S1. micro crystal graphite raw material, phosphorus content 70%, crushing and grinding, to the microlite ink powder that granularity is 300 mesh are taken；
S2. microlite ink powder obtained by step S1 and perchloric acid and potassium permanganate are placed in progress first time in reaction unit
Intercalation processing is learned, obtains inflatable micro crystal graphite acidic suspension, the filtering of micro crystal graphite acidic suspension is may expand to gained, is protected
Reserved filtrate is standby, then washs filtrate, dries, obtains and once may expand micro crystal graphite；Wherein, first time chemical graft
Concretely comprise the following steps：S21. it is 10 by liquid-solid ratio by perchloric acid and micro crystal graphite powder：1L/Kg is mixed evenly；S22. press
The mass ratio of micro crystal graphite powder and strong oxidizer is 2：1 adds strong oxidizer, after being stirred at room temperature uniformly, is warming up to 30 DEG C
Continue stirring reaction 3h；S23. adding deionized water makes the temperature in reaction unit be increased to 60 DEG C, is further continued for stirring reaction
3h；
S3. an expansible graphite is immersed in 8h in 1.0mol/L FeCl3 solution；It is filtrated to get load Fe3+'s
Micro crystal graphite is once may expand, it is stand-by that 3h is dried at 70 DEG C；
S4. the micro crystal graphite that once may expand of load Fe3+ obtained by step S3 is placed in graphite expansion stove, carries out first
Secondary high-temperature expansion, is once expanded micro crystal graphite；Wherein first time high-temperature expansion concretely comprises the following steps：S31. feed：Using
Conserving graphite expanding furnace, the micro crystal graphite that once may expand for loading Fe3+ is put into burner hearth by charging aperture, the charging aperture
Temperature is 30 DEG C, and dispensing speed is 2Kg/h；S32. expand：The expansion temperature of burner hearth is 800 DEG C, is controlled by controlled wind speed
Bulking Time is 5s；S33. discharge：After completing step S52, discharging opening temperature is 50 DEG C, then collects and is born in discharge outlet
Carry Fe3+Once expansion micro crystal graphite；
S5. by load Fe obtained by step S43+Once expand micro crystal graphite at 30 DEG C double-steeping 1.0mol/L's
FeCl38h among solution, it is filtrated to get secondary load Fe3+Expansion micro crystal graphite；
S6. the expansion micro crystal graphite of secondary load Fe3+ obtained by step S5 is added to the 1.0mol/L potassium borohydride aqueous solution
In, filtered at 30 DEG C after stirring reaction 30min, wash and obtain load Nanoscale Iron/expansion micro crystal graphite of low bulk multiplying power and answer
Condensation material；
S7. it is the load Nanoscale Iron of low bulk multiplying power obtained by step S6/expansion micro crystal graphite composite is placed in graphite is swollen
In swollen stove, second of high-temperature expansion is carried out, obtains Nanoscale Iron/expansion micro crystal graphite composite；Wherein second of high-temperature expansion
Concretely comprise the following steps：S51. feed：Using conserving graphite expanding furnace, load Nanoscale Iron/expansion micro crystal graphite of low bulk multiplying power is answered
Condensation material is put into burner hearth by charging aperture, and the temperature of the charging aperture is 30 DEG C, and dispensing speed is 2Kg/h；S52. expand：
The expansion temperature of burner hearth is 900 DEG C, by controlled wind speed come to control Bulking Time be 5s；S53. discharge：After completing step S52,
Discharging opening temperature is 50 DEG C, then collects to obtain Nanoscale Iron/expansion micro crystal graphite composite in discharge outlet.
Embodiment 2
Referring to Fig. 1, the graphite expansion stove that is used for embodiment 1 first time high-temperature expansion and second of high-temperature expansion process,
Graphite expansion stove includes body of heater 1, feeding device 2, drawing mechanism 3 and control device, and raw material is by feeding device 2 to body of heater 1, so
Collected afterwards by drawing mechanism 3；Drawing mechanism 3 is located above body of heater, and feeding device 2 is located at below body of heater；It is provided with and adds in body of heater 1
Thermal 11, using Resistant heating, the inner bottom part of body of heater 1 is additionally provided with air-flow shower nozzle 4, and air-flow shower nozzle 4 also includes source of the gas 41, gas
Flow tube road 42 and control damper 43, source of the gas 41 is air, and connects airflow line 42, and airflow line 42 connects air-flow shower nozzle 4,
Control damper 43 is located in airflow line 42, and the top of air-flow shower nozzle 4 is provided with feeding device 2, specifically using feed screw, control
Device processed includes processor 5 and controller, and processor 5 is provided with control panel and is connected with controller, and controller includes the first control
Device 53 processed, the controller 51 of second controller 52 and the 3rd, the first controller 53 are connected with the control damper 43 of air-flow shower nozzle 4,
Second controller 52 is connected with feeding device 2, and the 3rd controller 51 is connected with heater 11；
Wherein, processor 5 uses microprocessor, and the first controller uses air inlet valve-driving circuit, and second controller uses
Feed valve-driving circuit, and the 3rd controller uses heat driven circuit.
Cooling device 7 is additionally provided between drawing mechanism 3 and body of heater 1, cooling device 7 includes heat exchanger tube 71 and water cooling tube 72,
One end connection body of heater 1 of heat exchanger tube 71, other end connection drawing mechanism 3, heat exchanger tube 71 and horizontal angle are 45 DEG C~90
DEG C, water cooling tube 72 is arranged on heat exchanger tube 71 in the shape of a spiral；
Drawing mechanism 3 includes multiple reserves storehouses 31 and connecting pipe 32, and the one end of connecting pipe 32 is connected with heat exchanger tube 71,
And be provided with cyclone separator 33, the other end is connected with exhaust outlet 34, be additionally provided with connecting pipe 32 multiple subtubes 35 respectively with
Reserves storehouse 31 connects；Connecting pipe and 32 horizontal angles are 45 DEG C~90 DEG C；
Agitator 8 is additionally provided with body of heater 1, agitator 8 is spiral agitator, coordinates by motor and ball-screw, makes
Obtain agitator 8 and upper and lower linear motion is done in body of heater 1, so as to drive the airflow reflux in body of heater 1.
Wherein：The temperature of discharging opening is controlled by cooling device, and heater 6 also is provided with to control in charging aperture
The temperature of charging aperture processed, specific the present embodiment can be heated using resistance wire 61 to the discharge pipe in feeding device.
Can control time and the temperature of expansion by control panel, specifically processor by control the first controller and
Second controller controls air velocity and charging rate, so as to control the reaction time that intercalated graphite expands, the 3rd controller
The temperature of heater can be controlled, the intellectuality of graphite expansion is realized, reaches and be precisely controlled.
Graphite expansion stove is placed using two floors, and the processing sequence according to raw material is heat exchanger tube and connection from the bottom up
Pipeline and horizontal line have certain angle, by the cooperation of gravity and wind speed, that is, solve expanded graphite and get stuck problem, improve anti-
Yield is answered, while also solves space compared to being disposed vertically.
Graphite expansion stove adds agitator 8 in body of heater 1 so that the air-flow in body of heater 1 forms convection current, ensure that intercalation stone
Ink is heated evenly, so as to which the expanded reaction efficiency of intercalated graphite be significantly increased..
Embodiment 3
Nanoscale Iron/expansion micro crystal graphite composite that embodiment 1 is prepared is used as adsorbent, in simulation heavy metal
For polluted-water using the waste water of lead, cadmium, copper and chromium, concentration is respectively 20mg/L and 40mg/L, is claimed with high-precision electronic balance
0.05g Nanoscale Irons/expansion micro crystal graphite composite is taken with 100ml heavy metal wastewater therebies, being reacted in isothermal vibration case at 30 DEG C
2h, rotating speed 150r/min, reacted heavy metal in water concentration are determined using Inductively coupled plasma optical emission spectrometer, as a result
As shown in table 1.
1 Nanoscale Iron of table/absorption of the expansion micro crystal graphite composite to heavy metal in water
Claims (10)
- A kind of 1. preparation method for the Nanoscale Iron/expansion micro crystal graphite composite for removing Heavy Metals in Waters, it is characterised in that Comprise the following steps：S1. micro crystal graphite raw material, crushing and grinding, to the microlite ink powder that granularity is 300 ~ 400 mesh are taken；S2. the potassium permanganate pure with the perchloric acid and chemistry of mass fraction 70% of microlite ink powder obtained by step S1 is placed in reaction First time chemical graft processing is carried out in device, inflatable micro crystal graphite acidic suspension is obtained, microlite may expand to gained Black acidic suspension filtering, then filtrate is washed, dried, obtain and once may expand micro crystal graphite；S3., expansible graphite is immersed in 0.2~2.0mol/L FeCl38 ~ 10h in solution；It is filtrated to get load Fe3+ Once may expand micro crystal graphite, at 70 ~ 80 DEG C dry 3 ~ 5h it is stand-by；S4. by load Fe obtained by step S33+Once may expand micro crystal graphite be placed in graphite expansion stove, carried out at 800 DEG C First time high-temperature expansion, obtain loading Fe3+Once expansion micro crystal graphite；S5. by load Fe obtained by step S43+Once expansion micro crystal graphite at 25~45 DEG C double-steeping 0.2~ 2.0mol/L FeCl38 ~ 10h among solution, it is filtrated to get secondary load Fe3+Expansion micro crystal graphite；S6. by secondary load Fe obtained by step S53+Expansion micro crystal graphite be added in the potassium borohydride aqueous solution, at 25~40 DEG C Filtered after 20~40min of lower stirring reaction, washing obtains load Nanoscale Iron/expansion micro crystal graphite composite wood of low bulk multiplying power Material；S7. load Nanoscale Iron/expansion micro crystal graphite composite of low bulk multiplying power obtained by step S6 is placed in graphite expansion stove In, second of high-temperature expansion is carried out at 900 DEG C, obtains Nanoscale Iron/expansion micro crystal graphite composite.
- A kind of 2. system for the Nanoscale Iron/expansion micro crystal graphite composite for removing Heavy Metals in Waters according to claim 1 Preparation Method, it is characterised in that the micro crystal graphite is Chenzhou City Shandong pool graphite powder, and its carbon content is 70 ~ 80%.
- A kind of 3. system for the Nanoscale Iron/expansion micro crystal graphite composite for removing Heavy Metals in Waters according to claim 1 Preparation Method, it is characterised in that it is 30 μm that filter membrane maximum diameter of hole used is filtered described in step S2；The washing refers to crossing filter residue With 10% salt acid elution 3 ~ 5 times, then it is 7 or so to be washed with deionized to pH value；The drying refers to be done under the conditions of 60 ~ 80 DEG C Dry 2h.
- A kind of 4. system for the Nanoscale Iron/expansion micro crystal graphite composite for removing Heavy Metals in Waters according to claim 1 Preparation Method, it is characterised in that first time described in step S2, chemical graft step included：S21. it is 10~30 by liquid-solid ratio by perchloric acid and micro crystal graphite powder：1L/Kg is mixed evenly；S22. it is 1 by the mass ratio of the micro crystal graphite powder and potassium permanganate：2~8 add potassium permanganate, are stirred at room temperature After uniformly, it is warming up to 30~60 DEG C and continues 1~3.0h of stirring reaction；S23. add deionized water the temperature in the reaction unit is increased to 60~100 DEG C, be further continued for stirring reaction 1~ 3.0h。
- A kind of 5. system for the Nanoscale Iron/expansion micro crystal graphite composite for removing Heavy Metals in Waters according to claim 1 Preparation Method, it is characterised in that step S3 is concretely comprised the following steps：Expansible graphite is immersed in 1.0mol/L FeCl3Solution Middle 9h；It is filtrated to get load Fe3+Once may expand micro crystal graphite, at 75 DEG C dry 4h it is stand-by.
- A kind of 6. system for the Nanoscale Iron/expansion micro crystal graphite composite for removing Heavy Metals in Waters according to claim 1 Preparation Method, it is characterised in that step S4 carries out first time high-temperature expansion in graphite expansion stove and comprised the following steps：S41. feed：Using conserving graphite expanding furnace, Fe will be loaded3+Once may expand micro crystal graphite burner hearth is put into by charging aperture In, the temperature of the charging aperture is 30 DEG C, and dispensing speed is 2Kg/h；S42. expand：The expansion temperature of burner hearth is 800 DEG C, by controlled wind speed come to control Bulking Time be 5s；S43. discharge：After completing step S42, discharging opening temperature is 50 DEG C, then collects to obtain load Fe in discharge outlet3+One Secondary expansion micro crystal graphite.
- A kind of 7. system for the Nanoscale Iron/expansion micro crystal graphite composite for removing Heavy Metals in Waters according to claim 1 Preparation Method, it is characterised in that the concentration of the potassium borohydride aqueous solution described in step S6 is 0.1~2.0mol/L.
- A kind of 8. system for the Nanoscale Iron/expansion micro crystal graphite composite for removing Heavy Metals in Waters according to claim 1 Preparation Method, it is characterised in that step S7 carries out second of high-temperature expansion in graphite expansion stove and comprised the following steps：S71. feed：Using conserving graphite expanding furnace, the load Nanoscale Iron of low bulk multiplying power/expansion micro crystal graphite composite is passed through Charging aperture is put into burner hearth, and the temperature of the charging aperture is 30 DEG C, and dispensing speed is 2Kg/h；S72. expand：The expansion temperature of burner hearth is 900 DEG C, by controlled wind speed come to control Bulking Time be 5s；S73. discharge：After completing step S72, discharging opening temperature is 50 DEG C, then collects to obtain Nanoscale Iron/expansion in discharge outlet Micro crystal graphite composite.
- 9. a kind of Nanoscale Iron/expansion micro crystal graphite for removing Heavy Metals in Waters is answered according to claim 1~8 any one The Nanoscale Iron that the preparation method of condensation material obtains/expansion micro crystal graphite composite.
- A kind of 10. Nanoscale Iron/expansion micro crystal graphite for removing Heavy Metals in Waters according to claim 1~8 any one The Nanoscale Iron that the preparation method of composite obtains/expansion micro crystal graphite composite is removing the application of Heavy Metals in Waters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711052947.7A CN107597061A (en) | 2017-10-31 | 2017-10-31 | It is a kind of to be used to remove Nanoscale Iron/exfoliated-graphite composite of Heavy Metals in Waters and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711052947.7A CN107597061A (en) | 2017-10-31 | 2017-10-31 | It is a kind of to be used to remove Nanoscale Iron/exfoliated-graphite composite of Heavy Metals in Waters and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107597061A true CN107597061A (en) | 2018-01-19 |
Family
ID=61085281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711052947.7A Pending CN107597061A (en) | 2017-10-31 | 2017-10-31 | It is a kind of to be used to remove Nanoscale Iron/exfoliated-graphite composite of Heavy Metals in Waters and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107597061A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248662A (en) * | 2018-09-17 | 2019-01-22 | 明光市飞洲新材料有限公司 | A kind of adsorbent and preparation method thereof for building |
| CN110182908A (en) * | 2019-05-13 | 2019-08-30 | 浙江大学 | A kind of expanded graphite electrode and its preparation method and application for the removal of heavy metal ions in wastewater electrochemistry |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556022A (en) * | 2015-01-27 | 2015-04-29 | 西南科技大学 | Method for preparing expanded microcrystal graphite material from microcrystal graphite |
| CN104971696A (en) * | 2015-06-29 | 2015-10-14 | 北京化工大学 | Preparation method and applications of supported nano iron-expanded graphite composite material |
| CN107285307A (en) * | 2017-08-04 | 2017-10-24 | 湖南国盛石墨科技有限公司 | A kind of method that micro crystal graphite prepares reexpansion micro crystal graphite |
| CN107285306A (en) * | 2017-08-04 | 2017-10-24 | 湖南国盛石墨科技有限公司 | A kind of method that micro crystal graphite prepares expansion micro crystal graphite |
-
2017
- 2017-10-31 CN CN201711052947.7A patent/CN107597061A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556022A (en) * | 2015-01-27 | 2015-04-29 | 西南科技大学 | Method for preparing expanded microcrystal graphite material from microcrystal graphite |
| CN104971696A (en) * | 2015-06-29 | 2015-10-14 | 北京化工大学 | Preparation method and applications of supported nano iron-expanded graphite composite material |
| CN107285307A (en) * | 2017-08-04 | 2017-10-24 | 湖南国盛石墨科技有限公司 | A kind of method that micro crystal graphite prepares reexpansion micro crystal graphite |
| CN107285306A (en) * | 2017-08-04 | 2017-10-24 | 湖南国盛石墨科技有限公司 | A kind of method that micro crystal graphite prepares expansion micro crystal graphite |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248662A (en) * | 2018-09-17 | 2019-01-22 | 明光市飞洲新材料有限公司 | A kind of adsorbent and preparation method thereof for building |
| CN110182908A (en) * | 2019-05-13 | 2019-08-30 | 浙江大学 | A kind of expanded graphite electrode and its preparation method and application for the removal of heavy metal ions in wastewater electrochemistry |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Mahar et al. | Rapid adsorption of lead ions using porous carbon nanofibers | |
| CN206500151U (en) | The adsorbent equipment of the regenerating unit and application of the solid absorbent regenerating unit | |
| CN107285306A (en) | A kind of method that micro crystal graphite prepares expansion micro crystal graphite | |
| CN111250063B (en) | Preparation of conductive manganese-titanium lithium ion sieve/graphene composite hydrogel and application of conductive manganese-titanium lithium ion sieve/graphene composite hydrogel in extraction of lithium from salt lake brine | |
| CN102614854A (en) | Method for preparaing dephosphorized and ferrum-carried activated carbon adsorbent | |
| Wang et al. | Adsorption of Cu2+ on new hyper-crosslinked polystyrene adsorbent: Batch and column studies | |
| CN104043395B (en) | A kind of living beings carbon back demercuration adsorbent preparation facilities and method | |
| CN107321335A (en) | A kind of sorbent preparation method and methods for using them for handling active dye wastewater | |
| CN107597061A (en) | It is a kind of to be used to remove Nanoscale Iron/exfoliated-graphite composite of Heavy Metals in Waters and preparation method thereof | |
| CN101301602B (en) | Method for preparing gaseous mercury absorbing and purifying agent | |
| CN104138744A (en) | Charcoal and mineral crystal compound air purifying material and preparation method thereof | |
| CN108404880A (en) | A kind of preparation method of inorganic dephosphorization adsorbent | |
| CN203852994U (en) | Organic waste gas treatment device | |
| CN108394921A (en) | A kind of secondary aluminium aluminium cinder resourceization utilizes method | |
| CN102941060A (en) | Manganese oxide and infusorial earth composite adsorbent for treating lead-containing wastewater and preparation method | |
| CN105032122B (en) | A kind of implementation method of tritiated apparatus for recovering | |
| CN107051394A (en) | A kind of magnetic nanometer adsorbent preparation of calixarenes modification and its method for adsorption of Low Concentration uranium | |
| Li et al. | Novel lithium ion-sieve spinning fiber composite of PVDF-HMO for lithium recovery from geothermal water | |
| CN100348309C (en) | Method for preparing mud adsorbent used for desulfurization of flue-gas | |
| CN113171747A (en) | Preparation method of kaolin-based porous material for adsorbing mercury in coal-fired flue gas | |
| CN107199010A (en) | A kind of multistage core shell structure carries lithium material and preparation method thereof | |
| CN205235698U (en) | Active carbon adsorption device of can regenerating | |
| CN110404507A (en) | A kind of zinc-aluminum hydrotalcite/carbon nanotube composite adsorbing material and preparation method thereof and the application in recycling gallium | |
| CN201735406U (en) | Microwave activated carbon regenerating unit | |
| CN113499753A (en) | Preparation and regeneration method of renewable demercuration adsorbent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180119 |