CN106345439A - Device for regenerating potassium ion sieve through electric driving method and application of device - Google Patents
Device for regenerating potassium ion sieve through electric driving method and application of device Download PDFInfo
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Abstract
The invention relates to a device for regenerating a potassium ion sieve through an electric driving method. The device comprises a stainless steel wire anode 3, a direct-current stabilized voltage supply 4, silica gel sealing gaskets 5, a stainless steel wire cathode 6, a polyester filter cloth 8, the potassium ion sieve 9 and the like. Compared with a traditional method for regenerating the potassium ion sieve through concentrated nitric acid, the device for regenerating through the electric driving method provided by the invention has the characteristics of time saving and high regenerating efficiency, and can realize complete regeneration within 20min, while a concentrated nitric acid method requires 24h or longer for regenerating the potassium ion sieve, so that the time is saved by dozens of times. According to the concentrated nitric acid method, 6mol/L of concentrated nitric acid is utilized for regenerating for 20min, and the regenerating rate is 22.1 percent, while according to the device for regenerating the potassium ion sieve through the electric driving method provided by the invention, the regenerating rate can achieve 97.9 percent within 20min at the current density of 15mA/cm<2>, and is much higher than the regenerating rate of the concentrated nitric acid method.
Description
[technical field]
The invention belongs to potassium from sea water technical field.More particularly it relates to a kind of electric drive method regenerates potassium ion
Screen device, further relates to the purposes that described electric drive method regenerates potassium ion screen device.
[background technology]
The main source mode that potassium element is metal potassium resource is obtained from sea water.Carry out potassium ion suction using potassium ion sieve
Attached is a kind of at present main method obtaining potassium.But, once adsorbing after potassium ion reaches saturation, reproduction ratio is relatively for potassium ion sieve
Difficulty, and often regenerate not thorough, lead to potassium ion sieve adsorption capacity can be gradually reduced.Potassium ion sieve large-scale application in
Potassium from sea water technique must take into recycling of potassium ion sieve, and multiple efficient circulation utilization could embody potassium ion and sieve from sea water
Put forward the economy of potassium.Renovation process is the potassium ion most crucial technology that can recycle of sieve, exploitation one kind can efficiently, warp
Ji, green, timesaving regeneration techniques, can provide technology humanized for the technique of potassium from sea water.
In the prior art, also do not carry out potassium ion sieve regeneration using electric drive method.For example Wu Yan side is in exercise question
“mno2Type potassium ion sieve synthesis and its to k+Ion exchange behavioral study ", Qingdao University of Science and Technology's master thesis
(2008) describe in paper, manganese systems potassium ion sieve renovation process is all concentrated on and regenerated using high concentration concentrated nitric acid, this
It is because h+It is the minimum ion of radius, h in cation+It is easiest to enter potassium ion sieve in tunnel and potassium ion exchanged
(such as Dong Dian power et al., the synthesis of manganese dioxide type potassium ion sieve and its Ion Exchange Thermodynamics to potassium, " chemical industry enters ion
Exhibition " 2009,28 (6): 1005-1009).But, the method has time-consuming (more than 24 hours), and (acid soak, water is many for complex steps
Secondary cleaning), efficiency is low, and the shortcomings of regeneration is incomplete, and concentrated nitric acid is expensive, belongs simultaneously to harmful influence, in concentrated nitric acid
Under the conditions of regenerated, substantial amounts of nitric acid waste can be produced, extremely disadvantageous to environment, do not reach green chemical industry and recycling economy
Require.Regenerate the problem that potassium ion sieve exists for concentrated nitric acid, electric drive method of the present invention solves large-scale application potassium ion
The unfriendly problem of environment in the regeneration difficult problem of sieve and regenerative process, is that potassium ion sieves in the technical application of potassium from sea water
Technical support is provided.
[content of the invention]
[technical problem to be solved]
It is an object of the invention to provide a kind of electric drive method regenerates potassium ion screen device.
It is a further object to provide described electric drive method regenerates the purposes of potassium ion screen device.
[technical scheme]
The present invention is achieved through the following technical solutions.
The present invention relates to a kind of electric drive method regenerates potassium ion screen device, this device include cell body 1, regenerated liquid outlet 7 with
Regenerated liquid entrance 13.This device also includes stainless (steel) wire anode 3, D.C. regulated power supply 4, silica gel sealing pad 5, stainless (steel) wire negative electrode
6th, terylene filter cloth 8, potassium ion sieve 9, air pump 10 and air intake 11；
Cell body 1 is made up of upper groove body 1-1, lower groove 1-2 and bottom land 1-3；In the setting of upper groove body 1-1 top and air pump 10
Connected air intake 11 and regenerated liquid entrance 13；In lower groove 1-2 central authorities setting regenerated liquid outlet 7；
Silica gel sealing pad 5-1 in setting between upper groove body 1-1 lower end and lower groove 1-2 upper end, in silica gel sealing pad 5-1
Middle installation stainless (steel) wire anode 3, and install terylene filter cloth 8- below silica gel sealing pad 5-1 and lower groove 1-2 upper end between
1；
Silica gel sealing pad 5-2 under arranging between on lower groove 1-2 lower end and bottom land 1-3, in silica gel sealing pad 5-2
Stainless (steel) wire negative electrode 6 is installed, and terylene filter cloth 8-2 under installing and lower groove 1-2 lower end between on silica gel sealing pad 5-2；
D.C. regulated power supply 4 is arranged on outside cell body 1；The anode of D.C. regulated power supply 4 is connected with stainless (steel) wire anode 3,
And its negative electrode is connected with stainless (steel) wire negative electrode 6；
By lower groove 1-2, on load in the space that constitutes with lower terylene filter cloth 8-2 of terylene filter cloth 8-1 potassium to be regenerated from
Son sieve 9；Form air plenum 12 between regenerated liquid 2 liquid level in cell body 1 and upper groove body 1-1 upper end.
A preferred embodiment of the invention, cell body 1 is the cylinder made with lucite or rustless steel.
According to another kind of preferred implementation of the present invention, the described cylindrical high ratio with diameter is 1:5～10.
According to another kind of preferred implementation of the present invention, the mesh size of stainless (steel) wire anode 3 and stainless (steel) wire negative electrode 6
It is 100～1000 mesh.
According to another kind of preferred implementation of the present invention, the distance of regenerated liquid 2 liquid level and stainless (steel) wire anode 3 be potassium from
3～5 times of son sieve 9 height.
According to another kind of preferred implementation of the present invention, the voltage of D.C. regulated power supply 4 is 5～25v；Electric current density is
10～20ma/cm2.
According to another kind of preferred implementation of the present invention, described regenerated liquid is concentration is 1～10% sulfur by weight
Sour sodium or sodium nitrate aqueous solution.
The invention still further relates to described regeneration application in potassium from sea water technology for the potassium ion screen device.
The invention still further relates to the using method of described regeneration potassium ion screen device.
The step of this using method is as follows:
From mesh size be 100～1000 mesh stainless (steel) wire negative electrode 3 and stainless (steel) wire negative electrode 6；
Potassium ion to be regenerated sieve is loaded in lower groove 1-2, then regeneration is added toward in cell body 1 by regenerated liquid entrance 13
Liquid, is opened air pump 10 and is passed through air by air intake 11 toward in cell body 1, added by regenerated liquid entrance simultaneously toward in cell body 1
Plus described regenerated liquid, and by being arranged on the tongs adjusting water outlet flow in regenerated liquid outlet 7, to adjust regenerated liquid 2
The distance between liquid level and stainless (steel) wire anode 3, to reach 3～5 times that this distance is that potassium ion sieves 9 height；
Open D.C. regulated power supply 4, by voltage-regulation to 5～25v, electric current density is adjusted to 10～20ma/cm2, then
Carry out potassium ion sieve regeneration 15-20min, therebetween in regenerated liquid outlet 7 sampling, detection k in discharge liquor+Concentration.
According to another kind of preferred implementation of the present invention, described regenerated liquid is concentration is 1～10% sulfur by weight
Sour sodium or sodium nitrate aqueous solution.
The present invention is described in more detail below.
Regeneration principle is carried out to saturation k adsorption ion sieve using electrochemistry electric drive method as follows: in regeneration tank
As electrolyte, liquid level of electrolyte exceeds necessarily high the metabisulfite solution adding finite concentration such as 0.001mol/l than anode
Degree.As shown in Figure 2, before ventilation energising, potassium ion sieve is full of k in tunnel+, other cationes and k in solution+Ion exchange
Functioning efficiency is very low, is negligible；After regeneration tank ventilation energising, in the presence of air pressure and hydraulic pressure, regenerated liquid starts
Export from bottom regenerated liquid and flow out；The voltage of the liberation of hydrogen oxygen evolution potential of water is applied above on anode and cathode, now anode analyses oxygen in a large number,
Anode tap forms substantial amounts of h simultaneously+；The a large amount of liberation of hydrogen of negative electrode, and produce corresponding oh-, the electrode reaction equation of anode and cathode is:
Anode: 2h2o-4e-=4h++o2↑
Negative electrode: 4h2o+4e-=4oh-+2h2↑
K in the presence of forceful electric power field force, in saturation potassium ion sieve+Made by the electric field force from anode sensing negative electrode
With k+Start to move in solution from potassium ion sieve tunnel, and be oriented travel motion to negative electrode, reach cathode chamber it
Afterwards, in the presence of hydraulic pressure, flow out from regeneration trench bottom with regenerated liquid and be recycled, the effect of this electric field force, energy
Enough make k+It is easy to migrate out from potassium ion sieve tunnel, this electric drive regeneration exchanges regeneration than conventional ion and makees
Big with intensity, and efficiency high；And a large amount of h that anode region is produced due to water electrolysis+, in the presence of electric field force, h+Also towards the moon
Extreme direction displacement, during movement, due to h+Radius is minimum, therefore easily enters in potassium ion sieve tunnel, and
Occupy k in potassium ion sieve+Exchange site, potassium ion sieve therefore regenerated.In whole regenerative process, air pressure, hydraulic pressure and electricity
The collective effect of field force is it is achieved that cation is oriented migration toward cathode chamber so that k+Can leave residing for potassium ion sieve
Solution bulk, it is to avoid k occurs+Reenter the situation that potassium ion sieves occupy-place in tunnel, this is regenerated also with concentrated nitric acid
And cannot realize.And the oh that cathode chamber produces-, due to very close to outlet although have towards anode migration trend, but
The liquid flow forces that air pressure and hydraulic pressure lead to have been over electric field force, therefore oh-Can be with regenerated liquid and k+Flow out together, because
The oh that this cathode chamber produces-Do not interfere with the regeneration effect of potassium ion sieve.Using the method, can quickly realize potassium ion sieve
Regeneration, and can obtain rich in k+Regenerated liquid, improve potassium subsequent recovery utilize efficiency.
The present invention relates to a kind of electric drive method regenerates potassium ion screen device, this device include cell body 1, regenerated liquid outlet 7 with
Regenerated liquid entrance 13.This device also includes stainless (steel) wire anode 3, D.C. regulated power supply 4, silica gel sealing pad 5, stainless (steel) wire negative electrode
6th, terylene filter cloth 8, potassium ion sieve 9, air pump 10 and air intake 11；
Cell body 1 is made up of upper groove body 1-1, lower groove 1-2 and bottom land 1-3；In the setting of upper groove body 1-1 top and air pump 10
Connected air intake 11 and regenerated liquid entrance 13；In lower groove 1-2 central authorities setting regenerated liquid outlet 7；
According to the present invention, cell body 1 is the cylinder made with lucite or rustless steel.Described cylindrical height and diameter
Ratio be 1:5～10.
Silica gel sealing pad 5-1 in setting between upper groove body 1-1 lower end and lower groove 1-2 upper end, in silica gel sealing pad 5-1
Middle installation stainless (steel) wire anode 3, and install terylene filter cloth 8- below silica gel sealing pad 5-1 and lower groove 1-2 upper end between
1；
According to the present invention, the mesh size of stainless (steel) wire anode 3 is 100～1000 mesh.
Silica gel sealing pad 5-2 under arranging between on lower groove 1-2 lower end and bottom land 1-3, in silica gel sealing pad 5-2
Stainless (steel) wire negative electrode 6 is installed, and terylene filter cloth 8-2 under installing and lower groove 1-2 lower end between on silica gel sealing pad 5-2；
According to the present invention, the mesh size of stainless (steel) wire negative electrode 6 is 100～1000 mesh.
D.C. regulated power supply 4 is arranged on outside cell body 1；The anode of D.C. regulated power supply 4 is connected with stainless (steel) wire anode 3,
And its negative electrode is connected with stainless (steel) wire negative electrode 6；
By lower groove 1-2, on load in the space that constitutes with lower terylene filter cloth 8-2 of terylene filter cloth 8-1 potassium to be regenerated from
Son sieve 9；Form air plenum 12 between regenerated liquid 2 liquid level in cell body 1 and upper groove body 1-1 upper end.
Preferably, the distance of regenerated liquid 2 liquid level and stainless (steel) wire anode 3 is 3～5 times that potassium ion sieves 9 height.
According to the present invention, the voltage of D.C. regulated power supply 4 is 5～25v；Electric current density is 10～20ma/cm2.
According to the present invention, described regenerated liquid is concentration is 1～10% sodium sulfate or sodium nitrate aqueous solution by weight.
The invention still further relates to described regeneration application in potassium from sea water technology for the potassium ion screen device.
The invention still further relates to the using method of described regeneration potassium ion screen device.
The step of this using method is as follows:
From mesh size be 100～1000 mesh stainless (steel) wire negative electrode 3 and stainless (steel) wire negative electrode 6；
Potassium ion to be regenerated sieve is loaded in lower groove 1-2, then regeneration is added toward in cell body 1 by regenerated liquid entrance 13
Liquid, is opened air pump 10 and is passed through air by air intake 11 toward in cell body 1, added by regenerated liquid entrance simultaneously toward in cell body 1
Plus described regenerated liquid, and by being arranged on the tongs adjusting water outlet flow in regenerated liquid outlet 7, to adjust regenerated liquid 2
The distance between liquid level and stainless (steel) wire anode 3, to reach 3～5 times that this distance is that potassium ion sieves 9 height；
Open D.C. regulated power supply 4, by voltage-regulation to 5～25v, electric current density is adjusted to 10～20ma/cm2, then
Carry out potassium ion sieve regeneration 15-20min, therebetween in regenerated liquid outlet 7 sampling, detection k in discharge liquor+Concentration.
According to the present invention, described regenerated liquid is concentration is 1～10% sodium sulfate or sodium nitrate aqueous solution by weight.
It is described more fully below that potassium ion sieve series is standby and its factor of impact regeneration.
The preparation of potassium ion sieve:
Weigh 237g (1.5mol) potassium permanganate to be dissolved in 3l pure water, obtain potassium permanganate solution.
Weigh 507g (3mol) manganous sulphate and be dissolved in 1.5l concentration for, in 98% concentrated sulphuric acid by weight, obtaining manganous sulphate
Solution.
Allow manganous sulphate solution heated and stirred at 75 DEG C of temperature, then potassium permanganate solution is added dropwise to sulphuric acid sub-
In manganese solution；8h, then sucking filtration is stirred again at 75 DEG C of temperature, the product obtaining first uses nitric acid acidwashing after being added dropwise to complete, then
3l concentration is soaked in the concentrated nitric acid for 6mol/l and is completed within 3 days to protonate, and separates the potassium ion described in obtaining and sieves.
Potassium ion sieve saturation exchange capacity:
Above-mentioned for 600g potassium ion sieve is placed in 2l k+Concentration is in the kcl solution of 25000mg/l, carries out k at room temperature+Full
With absorption 4 hours, then filter potassium ion sieve, the filtrate obtaining measures k under normal conditions with ion chromatograph+Concentration, its
Concentration is 5493mg/l, and calculating potassium ion sieve saturation exchange capacity is 65mg/g.
Potassium ion sieve regenerative current density determines:
Above-mentioned k+The ion sieve sample deionized water cleaning of adsorption saturation, dries, and weighs 6 parts of potassium ion sieve samples, often
Part 20g, carries out following regeneration tests respectively, to verify the regenerability of potassium ion sieve under different electric current densities.
Experiment condition:
Using electric drive method regenerating unit of the present invention.
Electric current density 0～25ma/cm2；
Anode and cathode is the thick stainless (steel) wire electrode of 0.5mm, electrode area ≈ 50cm2；
Electrolyte is 0.001mol/l sodium sulfate, and volume is 300ml；
Recovery time is 20min.
Electric drive method regenerating unit of the present invention carries out potassium ion sieve Regeneration test results under different electric current densities and is listed in table
1.
Table 1: potassium ion sieve Regeneration test results under different electric current densities
The result of table 1 clearly shows, when electric current density is 0ma/cm2When, regeneration rate is very low, is 3.8%, can hardly be again
Raw；With the raising of electric current density, when electric current density is 10ma/cm2When, anode surface substantially analyses oxygen；When electric current density be 15,
20、25ma/cm2When, anode surface quickly analyses oxygen, and anode region produces substantial amounts of h simultaneously+, forceful electric power driving effect is k+From potassium from
Son sieve pulls out and past movable cathode in tunnel, and substantial amounts of h+Electric drive effect under toward movable cathode during, can enter
Enter in potassium ion sieve tunnel and occupy k+Adsorption site, make potassium ion sieve regenerated well.Electric current density increases, and has
Beneficial to enhancing k+Carry out electromigratory electrical drive power from tunnel, be simultaneously also beneficial to improve the h that anode region generates+Concentration, this
Both sides collective effect, can substantially increase the regeneration rate of potassium ion sieve.Can be seen that from accompanying drawing 3 and reach when electric current density
15ma/cm2When, potassium ion sieve regeneration rate has reached 98.4%, then improves electric current density, and potassium ion sieve regeneration rate is no obvious
Increase, energy consumption can be increased on the contrary, increase regeneration expense, reduce the current efficiency of regeneration.Therefore, select 15ma/cm2As optimal
Regenerative current density.
The potassium ion sieve recovery time determines:
Using electric drive method regenerating unit of the present invention.Take k+Potassium ion 6 parts of the sample of sieve of saturation absorption, every part of 20g, respectively
Carry out following regeneration tests, to verify the regenerability of potassium ion sieve under different electric current densities.
Experiment condition: electric current density 15ma/cm2；Electrode area ≈ 50cm2；Electrolyte is 0.001mol/l sodium sulfate, body
Amass as 300ml；Recovery time is 1～60min, changes the recovery time, investigates the different recovery times and sieves regeneration rate for potassium ion
Impact.
Using electric drive method regenerating unit of the present invention, potassium ion sieve regeneration effect result of the test row under the different recovery times
In table 2.
Table 2: potassium ion sieve Regeneration test results under the different recovery times
From table 2 it can be seen that due to the presence of air pressure and hydraulic pressure, regenerated liquid can flow out from cathode chamber lower end, from above institute
State principle analysis to understand, k+Also can flow out with regenerated liquid, the time is longer, the volume that regenerated liquid flows out is bigger, and mixed regeneration liquid
Volume bigger, for improve regenerated liquid in k+Concentration is unfavorable, and therefore, on the one hand the recovery time affects mixed regeneration liquid
Middle k+Concentration, on the one hand the regeneration rate of impact potassium ion sieve, therefore will consider these two aspects factor.Knowable to accompanying drawing 4,
K in mixed regeneration liquid+Concentration increases with the recovery time and reduces, after potassium ion sieve regeneration rate increases with the recovery time and first improves
Steadily.When recovery time is 15min, k in mixed regeneration liquid+Concentration be 25.1mg/l, potassium ion sieve regeneration rate be 86.1%；
When recovery time is 20min, k in mixed regeneration liquid+Concentration be 20.7mg/l, potassium ion sieve regeneration rate be 97.9%；When again
When the raw time is 60min, k in mixed regeneration liquid+Concentration be 7.1mg/l, potassium ion sieve regeneration rate be 98.9%；Thus may be used
Know, upon regeneration between more than 20min when, already close to complete, now extending the recovery time again can lead to mixed regeneration liquid for regeneration
Middle k+The drastically decline of concentration, is unfavorable for follow-up k+Purification reclaim.Consider, when selecting 15-20min for optimal regeneration
Between.
With concentrated nitric acid method of reproduction (referring specifically to Wu Yan side in exercise question " mno2Type potassium ion sieve synthesis and its to k+Ion
Switch-activity studies [d] ", Qingdao University of Science and Technology, master thesis, the method described in 2008) contrast test:
Weigh 3 parts of k+The potassium ion sieve sample of saturation absorption, every part of 20g, carry out following regeneration tests respectively, to verify not
Regenerability with the potassium ion sieve of renovation process.
Experiment condition: 3 parts of 6mol/l concentrated nitric acids, every part of 300ml, regenerated under agitation, at the appointed time
Take out regenerated liquid and carry out k+Concentration determination.
The regeneration of concentrated nitric acid method and the comparative test result row regenerating potassium ion sieve using electric drive method regenerating unit of the present invention
In table 3.
Table 3: the regeneration of concentrated nitric acid method and electric drive regenerate comparative test result
As can be known from the results of Table 3, carry out regenerating 20min (0.333h) using 6mol/l concentrated nitric acid, regeneration rate reaches
22.1%, and electric drive regeneration (electric current density be 15ma/cm2) 20min, regeneration rate can reach 97.9%, far above concentrated nitric acid
Method regenerates.Extend the concentrated nitric acid method recovery time, the regeneration rate of potassium ion sieve can be improved, such as concentrated nitric acid method regenerates 24h, regeneration rate
Reach 64.0%, its recovery time is 72 times of electric drive recovery time, and the regeneration rate of concentrated nitric acid method regeneration is electricity drive
The 65.4% of dynamic regeneration.Additionally, from table 3 it is also found that electric drive method regenerant ions sieve mixed regeneration liquid k+Concentration is remote
Higher than k in the mixed regeneration liquid of concentrated nitric acid method regeneration+Concentration, is so conducive to follow-up potassium to reclaim and recycling.Thus may be used
Know, electric drive method regeneration potassium ion sifter device saves time, efficiently, the advantage such as economic, green, be a kind of can be with the new side of popularization and application
Method.
Repeatability using electric drive method regenerating unit electric drive method of the present invention regeneration potassium ion sieve:
Weigh 6 parts of k+The potassium ion sieve sample of saturation absorption, every part of 20g, carry out following regeneration tests respectively, to verify electricity
Driving method regenerates the repeatability of potassium ion sieve.
Experiment condition: electric current density 15ma/cm2；Electrode area=50cm2；Electrolyte is 0.001mol/l sodium sulfate, body
Amass as 300ml；Recovery time is 20min.
The repeatability the result that electric drive method regenerates potassium ion sieve is listed in table 4.
Table 4: electric drive method regenerates the repeatability result of potassium ion sieve
As can be seen from Table 4, the regeneration rate of six samples is all more than 95%, it follows that electric drive method regeneration side
The repeatability of method is good, disclosure satisfy that application request, provides strong technical support for potassium from sea water technique.
In sum, using electric drive method regenerating unit of the present invention carry out regenerate potassium ion sifter device save time, regeneration efficiency
High, regeneration expense is low, k+The beneficial effects such as the cycles of concentration height of regenerated liquid, safe operation, non-secondary pollution, solve extensive
The unfriendly problem of environment in the regeneration difficult problem of application potassium ion sieve and regenerative process, is that potassium ion sieves in potassium from sea water skill
Application in art provides technical support.
[beneficial effect]
The invention has the beneficial effects as follows: compared with the method regenerating potassium ion sieve with traditional concentrated nitric acid, electric drive method of the present invention
Regenerating unit has timesaving feature.Carry out electric drive method regenerant ions sieve using electric drive method regenerating unit of the present invention
20min can be achieved with regenerating completely；And concentrated nitric acid method regeneration potassium ion sieve needs more than 24 hours, the time saves tens times.
Electric drive method regenerating unit of the present invention has the characteristics that regeneration efficiency is high.Concentrated nitric acid method is entered using 6mol/l concentrated nitric acid
Row regeneration 20min, regeneration rate is 22.1%, and electric drive method of the present invention regeneration potassium ion screen device is in electric current density 15ma/cm2
The regeneration rate of lower 20min reaches 97.9%, the significantly larger than regeneration rate of concentrated nitric acid method.
Forceful electric power field force driving energy enough makes k+Move in solution from potassium ion sieve tunnel, and rely on electric field force to move to negative electrode
Move and leave the residing solution bulk of potassium ion sieve.And regenerated using strong nitric acid, it is using high concentration h+K+From potassium ion
Exchange in solution in the tunnel of sieve, potassium ion does not leave the residing solution bulk of potassium ion sieve, additionally, ion exchange mistake
Journey is related to the impact of ion diffusion, ionic adsorption and the factors such as desorption, ion concentration, the therefore revival of ion sieve
Rate is not high, and regenerates not exclusively.
[brief description]
Fig. 1 is the structural representation that electric drive method of the present invention regenerates potassium ion screen device；
In figure:
1- lucite part；2- metabisulfite solution；3- stainless (steel) wire anode；4- D.C. regulated power supply；5- silica gel sealing
Pad；6- stainless (steel) wire negative electrode；7- regenerated liquid exports；8- terylene filter cloth；9- potassium ion sieves；10- air pump；11- air intake；
12- air plenum；13- regenerated liquid entrance；
Fig. 2 is electric drive method regeneration potassium ion sieve schematic diagram of the present invention；
Fig. 3 is to sieve regeneration rate using different electric current densities during electric drive method of the present invention regeneration potassium ion screen device to potassium ion
Impact figure；
Fig. 4 is to sieve regeneration effect using recovery time during electric drive method of the present invention regeneration potassium ion screen device to potassium ion
Impact figure.
[specific embodiment]
Will be better understood that the present invention by following embodiments.
Embodiment 1: the electric drive method regeneration potassium ion screen device of the present invention
The embodiment of this embodiment is as follows:
Electric drive method regeneration potassium ion screen device of the present invention includes cell body 1, regenerated liquid outlet 7 and regenerated liquid entrance 13.Should
Device also includes stainless (steel) wire anode 3, D.C. regulated power supply 4, silica gel sealing pad 5, stainless (steel) wire negative electrode 6, terylene filter cloth 8, potassium
Ion sieve 9, air pump 10 and air intake 11；
Cell body 1 be the height made with lucite and diameter ratio be 1:5 cylinder.Cell body 1 by upper groove body 1-1, under
Cell body 1-2 and bottom land 1-3 forms；At upper groove body 1-1 top, the air intake 11 being connected with air pump 10 and regenerated liquid are set
Entrance 13；In lower groove 1-2 central authorities setting regenerated liquid outlet 7；
Silica gel sealing pad 5-1 in setting between upper groove body 1-1 lower end and lower groove 1-2 upper end, in silica gel sealing pad 5-1
Middle installation mesh size is the stainless (steel) wire anode 3 of 800 mesh, and below silica gel sealing pad 5-1 and lower groove 1-2 upper end between
Install terylene filter cloth 8-1；
Silica gel sealing pad 5-2 under arranging between on lower groove 1-2 lower end and bottom land 1-3, in silica gel sealing pad 5-2
The stainless (steel) wire negative electrode 6 that mesh size is 300 mesh is installed, and pacifies and lower groove 1-2 lower end between on silica gel sealing pad 5-2
Load terylene filter cloth 8-2；
D.C. regulated power supply 4 is arranged on outside cell body 1, and the voltage of D.C. regulated power supply 4 is 5v, electric current density is 20ma/
cm2.The anode of D.C. regulated power supply 4 is connected with stainless (steel) wire anode 3, and its negative electrode is connected with stainless (steel) wire negative electrode 6；
By lower groove 1-2, on load in the space that constitutes with lower terylene filter cloth 8-2 of terylene filter cloth 8-1 potassium to be regenerated from
Son sieve 9；It is by weight between 1% aqueous sodium persulfate solution regenerated liquid 2 liquid level and upper groove body 1-1 upper end in the concentration in cell body 1
Form air plenum 12.The distance of regenerated liquid 2 liquid level and stainless (steel) wire anode 3 is 3 times that potassium ion sieves 9 height.
Embodiment 2: the electric drive method regeneration potassium ion screen device of the present invention
The embodiment of this embodiment is same as Example 1, and simply cell body 1 is the height made with lucite or rustless steel
Ratio with diameter is the cylinder of 1:8, installs the stainless (steel) wire anode 3 that mesh size is 100 mesh in silica gel sealing pad 5-1；
The stainless (steel) wire negative electrode 6 that mesh size is 100 mesh is installed in silica gel sealing pad 5-2；The voltage of D.C. regulated power supply 4 be 12v,
Electric current density is 16ma/cm2.Concentration in cell body 1 is 4% sodium nitrate aqueous solution regenerated liquid 2 liquid level by weight and upper groove
Form air plenum 12 between body 1-1 upper end；Regenerated liquid 2 liquid level is that potassium ion sieves 9 height with the distance of stainless (steel) wire anode 3
5 times.
Embodiment 3: the electric drive method regeneration potassium ion screen device of the present invention
The embodiment of this embodiment is same as Example 1, and simply cell body 1 is the height made with lucite or rustless steel
Ratio with diameter is the cylinder of 1:10, installs the stainless (steel) wire anode 3 that mesh size is 400 mesh in silica gel sealing pad 5-1；
The stainless (steel) wire negative electrode 6 that mesh size is 1000 mesh is installed in silica gel sealing pad 5-2；The voltage of D.C. regulated power supply 4 is
18v, electric current density are 12ma/cm2.Concentration in cell body 1 be by weight 10% aqueous sodium persulfate solution regenerated liquid 2 liquid level with
Form air plenum 12 between upper groove body 1-1 upper end；Regenerated liquid 2 liquid level is that potassium ion sieve 9 is high with the distance of stainless (steel) wire anode 3
4 times of degree.
Embodiment 4: the electric drive method regeneration potassium ion screen device of the present invention
The embodiment of this embodiment is same as Example 1, and simply cell body 1 is the height made with lucite or rustless steel
Ratio with diameter is the cylinder of 1:6, installs the stainless (steel) wire anode 3 that mesh size is 1000 mesh in silica gel sealing pad 5-1；
The stainless (steel) wire negative electrode 6 that mesh size is 700 mesh is installed in silica gel sealing pad 5-2；The voltage of D.C. regulated power supply 4 be 25v,
Electric current density is 10ma/cm2.Concentration in cell body 1 is 8% aqueous sodium persulfate solution regenerated liquid 2 liquid level by weight and upper groove
Form air plenum 12 between body 1-1 upper end；Regenerated liquid 2 liquid level is that potassium ion sieves 9 height with the distance of stainless (steel) wire anode 3
4 times.
Claims (10)
1. a kind of electric drive method regenerates potassium ion screen device, and this device includes cell body (1), regenerated liquid outlet (7) is entered with regenerated liquid
Mouthful (13) are it is characterised in that this device also includes stainless (steel) wire anode (3), D.C. regulated power supply (4), silica gel sealing pad (5), no
Rust steel mesh negative electrode (6), terylene filter cloth (8), potassium ion sieve (9), air pump (10) and air intake (11)；
Cell body (1) is made up of upper groove body (1-1), lower groove (1-2) and bottom land (1-3)；In the setting of upper groove body (1-1) top and sky
Air intake (11) and regenerated liquid entrance (13) that air pump (10) is connected；In lower groove (1-2) central authorities setting regenerated liquid outlet
(7)；
Upper silica gel sealing pad (5-1) is set between upper groove body (1-1) lower end and lower groove (1-2) upper end, in silica gel sealing pad
(5-1) in, stainless (steel) wire anode (3) is installed, and installs and lower groove (1-2) upper end between below in silica gel sealing pad (5-1)
Terylene filter cloth (8-1)；
Silica gel sealing pad (5-2) under lower groove (1-2) lower end and bottom land (1-3) are arranged between above, in silica gel sealing pad (5-
2) in, stainless (steel) wire negative electrode (6) is installed, and washs under silica gel sealing pad (5-2) is installed above and lower groove (1-2) lower end between
Synthetic fibre filter cloth (8-2)；
D.C. regulated power supply (4) is arranged on outside cell body (1)；The anode of D.C. regulated power supply (4) and stainless (steel) wire anode (3) phase
Connect, and its negative electrode is connected with stainless (steel) wire negative electrode (6)；
Load potassium to be regenerated in the space being made up of with lower terylene filter cloth (8-2) lower groove (1-2), upper terylene filter cloth (8-1)
Ion sieve (9)；Form air plenum (12) between regenerated liquid (2) liquid level in cell body (1) and upper groove body (1-1) upper end.
2. regeneration potassium ion screen device according to claim 1 is it is characterised in that cell body (1) is with lucite or stainless
The cylinder that steel is made.
3. regeneration potassium ion screen device according to claim 2 is it is characterised in that the described cylindrical high ratio with diameter
It is 1:5～1:10.
4. regeneration potassium ion screen device according to claim 1 is it is characterised in that stainless (steel) wire anode (3) and stainless (steel) wire
The mesh size of negative electrode (6) is 100～1000 mesh.
5. regeneration potassium ion screen device according to claim 1 is it is characterised in that regenerated liquid (2) liquid level is positive with stainless (steel) wire
The distance of pole (3) is 3～5 times that potassium ion sieves (9) height.
6. regeneration potassium ion screen device according to claim 1 is it is characterised in that the voltage of D.C. regulated power supply (4) is 5
～25v；Electric current density is 10～20ma/cm2.
7. regeneration potassium ion screen device according to claim 1 is it is characterised in that described regenerated liquid is concentration is with weight
Gauge 1%～10% sodium sulfate or sodium nitrate aqueous solution.
8. the regeneration potassium ion screen device according to any one of claim 1-7 claim is in potassium from sea water technology
Application.
9. regenerate the using method of potassium ion screen device according to claim 1 it is characterised in that the method step is as follows:
Stainless (steel) wire negative electrode (3) and the stainless (steel) wire negative electrode (6) being 100～1000 mesh from mesh size；
Potassium ion to be regenerated sieve is loaded in lower groove (1-2), then is added again toward in cell body (1) by regenerated liquid entrance (13)
Raw liquid, opens air pump (10) and is passed through air by air intake (11) toward in cell body (1), passes through regenerated liquid entrance toward groove simultaneously
Add described regenerated liquid in body (1), and by being arranged on the tongs adjusting water outlet flow on regenerated liquid outlet (7), with
Adjust the distance between regenerated liquid (2) liquid level and stainless (steel) wire anode (3), with reach this distance be potassium ion sieve (9) height 3
～5 times；
Open D.C. regulated power supply (4), by voltage-regulation to 5～25v, electric current density is adjusted to 10～20ma/cm2, then carry out
Potassium ion sieve regeneration 15-20min, therebetween in regenerated liquid outlet (7) sampling, detection k in discharge liquor+Concentration.
10. regeneration potassium ion screen device according to claim 9 is it is characterised in that described regenerated liquid is concentration is with weight
Gauge 1～10% sodium sulfate or sodium nitrate aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610846858.9A CN106345439A (en) | 2016-09-23 | 2016-09-23 | Device for regenerating potassium ion sieve through electric driving method and application of device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610846858.9A CN106345439A (en) | 2016-09-23 | 2016-09-23 | Device for regenerating potassium ion sieve through electric driving method and application of device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106345439A true CN106345439A (en) | 2017-01-25 |
Family
ID=57859211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610846858.9A Pending CN106345439A (en) | 2016-09-23 | 2016-09-23 | Device for regenerating potassium ion sieve through electric driving method and application of device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106345439A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012065361A1 (en) * | 2010-11-19 | 2012-05-24 | 中南大学 | Method and device for separating lithium from magnesium and enriching lithium in salt lake brine |
| CN103432995A (en) * | 2013-09-11 | 2013-12-11 | 北京中能环科技术发展有限公司 | Regeneration method of activated carbon fiber in condensate treatment |
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2016
- 2016-09-23 CN CN201610846858.9A patent/CN106345439A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012065361A1 (en) * | 2010-11-19 | 2012-05-24 | 中南大学 | Method and device for separating lithium from magnesium and enriching lithium in salt lake brine |
| CN103432995A (en) * | 2013-09-11 | 2013-12-11 | 北京中能环科技术发展有限公司 | Regeneration method of activated carbon fiber in condensate treatment |
Non-Patent Citations (2)
| Title |
|---|
| 申小兰: "MFEDI处理低浓度含镍废水研究", 《中国博士学位论文全文数据库（电子期刊）》 * |
| 董殿权等: "二氧化锰型钾离子筛的合成及其对钾的离子交换热力学", 《化工进展》 * |
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Application publication date: 20170125 |