CN207221944U - Continuous automatic ion exchanging device - Google Patents
Continuous automatic ion exchanging device Download PDFInfo
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- CN207221944U CN207221944U CN201720272339.6U CN201720272339U CN207221944U CN 207221944 U CN207221944 U CN 207221944U CN 201720272339 U CN201720272339 U CN 201720272339U CN 207221944 U CN207221944 U CN 207221944U
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Abstract
The utility model belongs to refinement treatment technical field.Continuous automatic ion exchanging device includes one group of positive resin column and one group of negative resin column.Wherein previous resin column top is connected with latter resin column lower part by pipeline and connection valve, forms cascade.Every resin column top inlet and outlet and lower part inlet and outlet are connected by Self controlling valve with corresponding pipeline.By the disengaging of the unlatching control material of Self controlling valve, while complete different several processes such as ion exchange, pickling, alkali cleaning, washing, regeneration treatment.Wherein exchange section is divided into several independent resin columns, after exchange section last root resin column exchanges saturation, leave immediately exchange area washed, regeneration treatment, while the resin column that regeneration treatment is good, exchange section is supplemented into, becomes first resin column of exchange section.Continuous automatic ion exchanging device, can improve resin utilization rate, extend the service life of resin, reduce water and acid, the consumption of alkali.
Description
Technical field
A kind of continuous automatic ion exchanging device is the utility model is related to, belongs to refinement treatment technical field.
Background technology
Ion exchange is also referred to as desalination or except foreign ion.Ion-exchange process is the commutative base utilized in ion-exchanger
Roll into a ball with the difference of various interionic ion-exchange capacities in solution to carry out a kind of method of refining and edulcoration matter.
Ion-exchange process is the removal impurity widely applied in the industrial production in the industries such as chemical industry, food, pharmacy
The effective means of ion.
Ion-exchange process be generally use remove impurity ion processes, play an important role in process of production.Ion is handed over
The effect changed not only influences product quality, also influences production cost.
At present, industrial widely applied ion-exchange unit is typical fixed bed ion exchange unit.In the device,
Resin bed is fixed, and when ion exchange is run after a certain period of time, resin bed is classified into three sections：Saturation section, exchange section, new resin
Section.With the progress of ion exchange, exchange section is being gradually reduced, and saturation section is constantly extending, and new resin section is being gradually shortened, directly
Penetrated to resin bed bottom by exchange section, at this time resin column need to be washed, regeneration treatment.For a certain resin column, when into
When row washing, regeneration treatment, what ion exchange process was off.
Fixed bed ion exchange process there are resin utilization rate it is low the problem of.In ion exchange process operation, only exchange
A small amount of resin of section is working, and most of resin is in inactive state or wait state, and the utilization rate of resin is low.
CN201581085U discloses a kind of sugar automatic ion exchanging device, by automatic control system, instrumentation,
Autocontrol valve etc., without the switch for being manually operated valve and pump, you can complete all operationss.The utility model device introduces
Automatically control, solve the problems, such as artificial Open valve and pump, facilitate operation.But the utility model device is also to belong to solid
Fixed bed ion interchange unit, only more advantageous than traditional ion interchange unit at control aspect accurate, easy to operate, it cannot be solved
The problem of certainly resin utilization rate is low.
The content of the invention
For problem present in above-mentioned ion interchange unit, the utility model provides a kind of continuous automatic ion exchange dress
Put, by the substantial amounts of resin segmentation refinement of fixed bed, the resin for only leaving exchange section works in system, in time by bed
Deactivated resin removes, and makees regeneration treatment, is then reloaded into, stand-by.In this way, ion exchange just can efficiently be run.
The continuous automatic ion exchanging device of the utility model includes one group of positive resin column and one group of negative resin column.Previous
Resin column top is imported and exported to be connected with latter resin column lower part inlet and outlet by pipeline and connection valve, forms cascade, often
Root resin column top is imported and exported and lower part inlet and outlet are connected by Self controlling valve with corresponding pipeline, passes through opening for Self controlling valve
The disengaging of control material is opened, while completes different several steps such as ion exchange, pickling, alkali cleaning, washing.Wherein exchange section point
The resin column independent into several, after the resin column before exchange section exchanges saturation, leaves exchange section and is washed, regenerated immediately
Processing, and the resin column that regeneration treatment is good, are supplemented into exchange section.
More specifically, every 1 top of resin column inlet and outlet are all connected with lower part inlet and outlet by control valve with corresponding pipeline；
Adjacent two resin columns are connected by connecting tube 3 with connection valve 2.
On resin column inlet and outlet be connected with level-one inlet valve 15, two level inlet valve 14, water supply valve 13, upper soda acid valve 12, on
Air valve 11；Level-one charging manifold 31 is connected with level-one inlet valve 15, and two level charging manifold 32 is connected with two level inlet valve 14, on
Supply mains 33 is connected with water supply valve 13, and upper soda acid manifold 34 is connected with upper soda acid valve 12, upper air header 35 and upper air valve 11
Connection.
Under resin column inlet and outlet be connected with level-one outlet valve 25, two level outlet valve 24, lower water valve 23, lower soda acid valve 22, under
Air valve 21；Level-one discharge header pipe 41 is connected with level-one outlet valve 25, and two level discharge header pipe 42 is connected with two level outlet valve 24, under
Supply mains 43 is connected with lower water valve 23, and lower soda acid manifold 44 is connected with lower soda acid valve 22, lower air header 45 and lower air valve 21
Connection.
Positive resin column and negative resin column respectively have 10 ~ 34 resin columns, are preferably 18 ~ 30 resin columns, and optimal is 22 trees
Fat column.
Whole section of resin in original fixed bed ion exchange unit is divided into some sections by device, and each section is made one
Independent small resin column, these small resin columns form form in parallel or series, previous resin column top and latter resin column
Lower part is connected by pipeline with connection valve, and material flows through each small resin column by program requirement into form in parallel or series.
Device ion exchange process：Positive groove ~ level-one the anion exchange of raw material tank ~ level-one cation exchange ~ once ~ once cloudy
Groove ~ two level cation exchange ~ secondary positive groove ~ two level anion exchange ~ product groove.
When device is run, different resins column each plays a different role.Device is automatically transported by program, by step
OK, each steps such as the exchange of original fixed bed, washing, regeneration, elution are completed.Cation exchange and anion exchange at the same time into
OK.There is procedure below with what cation exchange and anion exchange were carried out at the same time：Binder, pressure water, washing, regeneration, elution etc..
The continuous automatic ion exchanging device of the utility model, cation exchange periodicity automatic running, a cycle is by n
A process composition, i.e. 1 ~ process of process n, repeats；Anion exchange is also periodicity automatic running, and a cycle is by n
Process forms, i.e. 1 ~ process of process n, repeats.N is equal to the column number of positive resin column or negative resin column.
By taking one group of 22 resin column as an example.22 resin columns are formed into cascades, previous resin column top with it is latter
Root resin column lower part is connected by pipeline with connection valve.Every resin column top inlet and outlet and lower part inlet and outlet by control valve and
Each manifold connections.
A cycle is made of 22 processes, and each at least four step of process operation, each process repeats one
The step of process.Four steps are as follows：
Step 1：A water liftouts, B water top acid, first run A, rerun B after the completion of A；Step 2：A pneumatic jack material, B material top water, first
B after A；Step 3：Bis- grading acid of A, mono- grading acid of B, B after first A；Step 4：A level-ones are fed, and the charging of B two levels, A and B are run at the same time.
After operation by four steps, following process is completed：Cation exchange, ejected in positive post with compressed air and expected
Liquid, washed out with water by remaining feed liquid, a grading acid treatment, two grading acid treatments, with water water ejected to acid ejection, materials；It is cloudy
Ion exchange, with compressed air eject feed liquid in cloudy column, washed out remaining feed liquid, at a grading alkali process, two grading alkali with water
Manage, ejected alkali with water, materials eject water.
After operation by four 22 processes, each process steps, a cycle is completed, is then restarted, repeated
Operation.
The continuous automatic ion exchanging device of the utility model, its ion exchange process are：Level-one cation exchange ~ level-one
Anion exchange；Or level-one cation exchange ~ two level cation exchange ~ level-one anion exchange；Or level-one cation is handed over
Change ~ level-one anion exchange ~ two level anion exchange；Or level-one cation exchange ~ level-one anion exchange ~ two level cation
Exchange ~ two level anion exchange；Material moves towards：Upper entering and lower leaving, or bottom in and top out.
There is the connection valve of control break-make between resin column and resin column, every resin column top inlet and outlet pass through internally piloted valve
Door is connected with corresponding pipeline, passes through the disengaging of the unlatching control material of Self controlling valve.
Every positive and negative resin column height and diameter ratio are 2.5：1, it is preferably 2.0：1, optimal is 1.8：1.
There is distributing device in the upper and lower part of every resin column, so that material stream in the form of columnar flow in resin bed
It is dynamic.Top distributing device abuts top, and lower part distributing device abuts bottom.Distributing device can be water cap form, orifice plate cover mesh form,
The double-decker form of internal layer distribution pipe outer screen；Distributing device gap is smaller 0.2 ~ 0.3mm than resin diameter, its effect is uniform
Distribution material, prevention resin passes through and material can free in and out.
Cation exchange resin is filled in every positive resin column；Anion exchange resin is filled in every negative resin column.Tree
After filling resin in fat column, forward direction walks material and reversely walks material, the result is that the same.
As further improvement of the utility model, the feed liquid ion concentration that need to such as handle is smaller, then only runs level-one sun
Column and level-one the moon column, i.e. ion exchange process are：Level-one cation exchange ~ level-one anion exchange.
As further improvement of the utility model, in chemical industry, food production, such case is often had：It need to handle
Feed liquid Positive Ion Content is more more than anion-content, then level-one positive post, level-one the moon column, two level positive post, i.e. ion exchange process
It is：Level-one cation exchange ~ level-one anion exchange ~ two level anion exchange.These changes are that those skilled in the art relatively hold
Easily realize.
The continuous automatic ion exchanging device of the utility model, is widely used in but is not limited to the ion exchange of following product
Except in impurity ion processes：Hemicellulose acidolysis Xylose；Hemicellulose digests Xylose processed；Citric acid fermentation broth；Grape
Sugared isomery sweet dew liquid glucose, glucose isomerase fructose liquid；Arabic gum acidolysis Arab liquid glucose；Molasses；Liquid glucose；Sugar alcohol
Liquid；Pharmaceutical intermediate etc..
The continuous automatic ion exchanging device of the utility model will fix in bed ion exchange unit the resin for part of leaving unused
Use, improve resin utilization rate, reduce water and acid, the consumption of alkali.
The continuous automatic ion exchanging device of the utility model, only with a small amount of resin, it is possible to reach and equipped with a large amount of
The same operating effect of the fixation bed ion exchange unit of resin, and can be regenerated in time after being inactivated due to resin, and make
Resin is soaked from long-time and pollution, extends the service life of resin.
Brief description of the drawings
Fig. 1 is continuous automatic ion exchanging device operational process schematic diagram；
Fig. 2 is 1 process schematic of continuous automatic ion exchanging device middle-jiao yang, function of the spleen and stomach resin column operation；
Fig. 3 is 1 process schematic that negative resin column is run in continuous automatic ion exchanging device；
Fig. 4 is any adjacent two resin column composition figure in continuous automatic ion exchanging device.
Each component is as follows in attached drawing：
Resin column 1, connecting tube 3, connection valve 2, level-one inlet valve 15, two level inlet valve 14, water supply valve 13, upper soda acid valve
12, upper air valve 11；Level-one charging manifold 31, two level charging manifold 32, upper supply mains 33, upper soda acid manifold 34, upper air are total
Pipe 35；Level-one outlet valve 25, two level outlet valve 24, lower water valve 23, lower soda acid valve 22, lower air valve 21；Level-one discharge header pipe 41,
Two level discharge header pipe 42, lower supply mains 43, lower soda acid manifold 44, lower air header 45.
Embodiment
Continuous automatic ion exchanging device is described further below in conjunction with the accompanying drawings.
The continuous automatic ion exchanging device of the utility model, by taking one group of 22 resin column as an example, resin column is formed and is gone here and there
Connection form, previous resin column top are connected with latter resin column lower part by pipeline and connection valve.
The continuous automatic ion exchanging device of the utility model, cation exchange periodicity automatic running, a cycle by
22 process compositions, i.e. 1 ~ process of process 22, repeat；Anion exchange periodicity automatic running, a cycle is by 22
Process forms, i.e. 1 ~ process of process 22, repeats.Cation exchange and anion exchange are carried out at the same time.Ion exchange into
It is 10 ~ 80 DEG C to expect material temperature, is preferably 30 ~ 60 DEG C, optimal is 45 ~ 50 DEG C.
To illustrate exemplified by the negative resin column of the positive resin column of one group of pilot-scale and one group of pilot-scale.
Totally 22, positive resin column, every positive resin column dress positive resin 0.05m3, common 1.1m3Positive resin；Negative resin column totally 22
Root, every 0.05 m of negative resin column dress negative resin3, common 1.1m3Negative resin.
Conventional instrumentation such as pressure instrumentation, flow instrumentation, electric conductivity detector table etc., believe for detecting
Number for computer program control.Pump used is by Frequency Converter Control.Turned by flow instrumentation measurement flow, Frequency Converter Control pump
Speed, so as to control each flow.
The xylose enzymolysis liquid that corncob is preprocessed, is obtained after enzymolysis is as treating raw material of the ion exchange except foreign ion.
Xylose enzymolysis liquid mass percent concentration is 8.0%, and electrical conductivity is 20000 ~ 30000 μ S/cm.
The xylose enzymolysis liquid for being 20000 ~ 30000 μ S/cm for processing electrical conductivity, every resin column is interior to be equipped with 0.05m3Sun
The feed rate of resin, every positive resin column or negative resin column is 0.3 m3After/h, 0.5 h detection through level-one cation exchange ~
Out-feed liquid electrical conductivity after level-one anion exchange ~ two level cation exchange ~ two level anion exchange is less than 5 μ S/cm.
Time using 0.5 h as a process is suitable.It is a cycle to have run 22 processes, and a cycle needs
11 h。
It is exchange section that the used time is longest in one process, other such as acid treatments, washing acid, pneumatic jack material, material top water, the used time
Respectively less than exchange section, enters next process to guarantee synchronism switching.
Fig. 2 is 1 process schematic of continuous automatic ion exchanging device middle-jiao yang, function of the spleen and stomach resin column operation.
The operation of positive resin column process 1：
Process 1 is divided to be run, is independent of each other for four steps of step 1 ~ step 4, four steps at the same time.
Step 1 is：A water liftouts, 1# ~ 3# resin columns, cascade；B water top acid, 16# ~ 18# resin columns, shape of connecting
Formula.
Step 2 is：A pneumatic jack material, 4# resin columns；B material top water, 15# resin columns.
Step 3 is：Bis- grading acid of A, 19# ~ 20# resin columns, cascade；Mono- grading acid of B, 21# ~ 22# resin columns, string
Connection form.
Step 4 is：A level-ones are fed, 5# ~ 9# resin columns, parallel form；B two levels are fed, 10# ~ 14# resin columns, in parallel
Form.
（1）Step 1 is divided to for two sub-steps of A and B, first operating procedure A, after the completion for the treatment of step A, step of reruning B.Step
0.04 h of A used times, 0.15 h of step B used times, 0.19 h when two steps share, less than step 4 used time.
Step A：Water liftout, need to eject 0.04 m out of 3# resin columns3Material, flow velocity is 1.0 m3/ h, 0.04 h of used time.
Water enters under 1# resin columns, and through 1# ~ 3# resin columns, bottom in and top out, goes out, feed liquid flow to one from 3# resin columns top
Secondary sun groove.
Step B：Water top acid, need to use 0.15 m3Water by 18# resin columns acid eject, flow velocity is 1.0 m3/ h, used time
0.15 h。
Water is from 15# resin columns lower part into through 16# ~ 18# resin columns, bottom in and top out, by acid solution in column from 18# resin columns
Portion ejects, and acid solution flow to HCl recovery groove.
（2）Step 2 is divided to for two sub-steps of A and B, first operating procedure A, after the completion for the treatment of step A, step of reruning B.Step
0.01 h of A used times, 0.03 h of step B used times, 0.04 h when two steps share, less than step 4 used time.
Step A：Pneumatic jack material, 4# resin columns.Compressed air can be in 0.01h or shorter time by the material in 4# resin columns
Liquid is ejected.
Compressed air is from 4# resin columns top into by the clout extrusion in 4# resin columns.Clout goes out from 4# resin columns lower part,
It flow to once positive groove.
Step B：Material top water, 15# resin columns.0.03m need to be ejected out of 15# resin columns3Water, flow velocity is 1.0 m3/ h, is used
When 0.03 h.
The water in 15# resin columns is ejected with the material in secondary positive groove.Material is from 15# resin columns lower part into, water from 15#
Resin column top goes out, and recycling sink is flow to, for complex acid.
（3）Step 3 is divided to for two sub-steps of A and B, first operating procedure A, after the completion for the treatment of step A, step of reruning B.Step
0.2 h of A used times, 0.2 h of step B used times, 0.4 h when two steps share, less than step 4 used time.
Step A：Two grading acid, 19# ~ 20# resin columns, cascade.The acid amount entered from 19# lower parts is 0.2 m3, stream
Speed is 1.0 m3/ h, 0.2 h of used time.
The acid newly prepared is from 19# resin columns lower part into through 19# ~ 20# resin columns, bottom in and top out, from 20# resin columns top
Go out, acid solution flow to HCl recovery groove.The acid of HCl recovery groove claims recovery acid, for a grading acid.
Step B：One grading acid, 21# ~ 22# resin columns, cascade.The acid amount entered from 21# lower parts is 0.2 m3, stream
Speed is 1.0 m3/ h, 0.2 h of used time.
Recovery acid from 21# resin columns lower part into, through 21# ~ 22# resin columns, bottom in and top out, goes out from 22# resin columns top,
Acid solution flow to spent acid groove.The sour impurity concentration of spent acid groove is very high, with decontamination water treatment system after the alkali neutralization of salkali waste groove.
（4）Step 4 is divided to be run at the same time for two sub-steps of A and B, step A and step B.Level-one feeds manifold 31 and two level
It is 1.5 m to feed flow in manifold 323/ h, flow is 0.3m in every resin column3/h.Step A is identical with the time used in step B,
For 0.5h.
Step A：Level-one is fed, 5# ~ 9# resin columns, parallel form.
5# ~ 9# resin columns form parallel form.Material is measured from raw material tank through flow instrument, variable frequency pump adjusts stream
After speed, feed manifold 31 through level-one and enter from 5# ~ 9# resin columns top, lower part comes out, and positive groove is flowed into once after converging.
Step B：Two level is fed, 10# ~ 14# resin columns, parallel form.
10# ~ 14# resin columns form parallel form.Secondary material is from once positive groove is measured through flow instrument, variable frequency pump is adjusted
After flow velocity, manifold 32 is fed through two level, is entered from 10# ~ 14# resin columns top, lower part comes out, and secondary positive groove is flowed into after converging.
Ion exchange process is completed in step 4, and step 1, step 2, step 3 are prepared for step 4.Step
4 used time is also longest, and before step 4 end of run, step 1, step 2, step 3 have been completed.
Fig. 3 is 1 process schematic that negative resin column is run in continuous automatic ion exchanging device.
Resin column operating condition is identical with positive resin column, but during processing exhausted resin, positive resin column is with acid, negative resin column
It is alkali.
After ion exchange removes foreign ion, the xylose enzymolysis liquid of pan tank is taken to detect, mass percentage concentration 7.5%, conductance
Rate is 10 ~ 20 μ S/cm.
It is not many feed liquids for impurity ion content, if electrical conductivity is between 10000 ~ 100000 μ S/cm, with one
System carries out ion exchange and removes foreign ion, i.e.,：Level-one cation exchange ~ level-one anion exchange ~ two level cation exchange ~ bis-
Level anion exchange.It can obtain the product below 20 μ S/cm of electrical conductivity after processing.
As another embodiment of the utility model, in such as chemical industry, food, medicine production, some intermediate products or
Finished product impurity ion content is very big, and electrical conductivity is up to 200000 ~ 500000 μ S/cm, even more high.In this case, in order to more
Economically running gear, can carry out ion exchange with two covering devices and remove foreign ion.I.e.：First covering device is run：Level-one sun from
Sub- exchange ~ level-one anion exchange ~ two level cation exchange ~ two level anion exchange.Product A electricity after the processing of first covering device
Conductance is 5000 ~ 100000 μ S/cm.
Charge raw materials of the product A as the second covering device, runs the second covering device：Level-one cation exchange ~ level-one the moon from
Sub- exchange ~ two level cation exchange ~ two level anion exchange.Product B electrical conductivity after the processing of second covering device is down to 20 μ S/cm
Below.
As another embodiment of the utility model, the feed liquid ion concentration that need to such as handle is smaller, and feed liquid electrical conductivity is
100 ~ 1000 μ S/cm, then only run level-one positive post and level-one the moon column, i.e. level-one cation exchange ~ level-one anion exchange, so that it may
So that electrical conductivity is down to below 20 μ S/cm.
Ion exchange removes the effect of foreign ion, related with feed rate, pending raw material impurity ion concentration.If
The electrical conductivity of pending raw material is very big, many containing ion, then reduces feed rate, or shorten the switching time of every column；Instead
It, then increase feed rate, or lengthen the switching time of every column.This is the operation that those skilled in the art are easier to adjustment
Process.
The embodiment of the utility model is not the limitation to the utility model.Those skilled in the art can be by this reality
Implement changing form for various ways with new method.
Claims (6)
1. continuous automatic ion exchanging device, it is characterised in that：Device is made of one group of positive resin column and one group of negative resin column；Often
Root resin column (1) top is imported and exported all to be connected with lower part inlet and outlet by control valve with corresponding pipeline；
Adjacent two resin columns are connected by connecting tube (3) with connection valve (2)；Inlet and outlet are connected with level-one inlet valve on resin column
(15), two level inlet valve (14), water supply valve (13), upper soda acid valve (12), upper air valve (11)；Level-one charging manifold (31) and one
Level inlet valve (15) connection, two level charging manifold (32) are connected with two level inlet valve (14), upper supply mains (33) and water supply valve
(13) connect, upper soda acid manifold (34) is connected with upper soda acid valve (12), and upper air header (35) is connected with upper air valve (11)；
Inlet and outlet are connected with level-one outlet valve (25), two level outlet valve (24), lower water valve (23), lower soda acid valve under resin column
(22), lower air valve (21)；Level-one discharge header pipe (41) is connected with level-one outlet valve (25), two level discharge header pipe (42) and two level
Outlet valve (24) connects, and lower supply mains (43) is connected with lower water valve (23), and lower soda acid manifold (44) is connected with lower soda acid valve (22),
Lower air header (45) is connected with lower air valve (21).
2. the continuous automatic ion exchanging device according to claim 1, it is characterised in that：One group of positive resin column is by 10
~ 34 positive resin column compositions, one group of negative resin column are made of 10 ~ 34 negative resin columns.
3. the continuous automatic ion exchanging device according to claim 1, it is characterised in that：Positive resin column, negative resin column into
During row ion exchange, material trend is upper entering and lower leaving, or bottom in and top out.
4. the continuous automatic ion exchanging device according to claim 1, it is characterised in that：Every resin column upper and lower part
Inlet and outlet are connected by Self controlling valve with corresponding pipeline, pass through the disengaging of the unlatching control material of Self controlling valve.
5. the continuous automatic ion exchanging device according to claim 1 or 2, it is characterised in that：Every positive and negative resin pillar height
Degree and diameter ratio are 2.5：1.
6. the continuous automatic ion exchanging device according to claim 1, it is characterised in that：The top of the every resin column
There is distributing device with lower part, so that material is flowed in resin bed in the form of columnar flow；Top distributing device abuts top, lower part
Distributing device abuts bottom；Cation exchange resin is filled in every positive resin column；Anion exchange is filled in every negative resin column
Resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720272339.6U CN207221944U (en) | 2017-03-21 | 2017-03-21 | Continuous automatic ion exchanging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720272339.6U CN207221944U (en) | 2017-03-21 | 2017-03-21 | Continuous automatic ion exchanging device |
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| Publication Number | Publication Date |
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| CN207221944U true CN207221944U (en) | 2018-04-13 |
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ID=61838714
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450903A (en) * | 2020-05-21 | 2020-07-28 | 浙江华康药业股份有限公司 | Continuous ion exchange system for xylose production and use method thereof |
| CN114272960A (en) * | 2021-10-27 | 2022-04-05 | 欧尚元(天津)有限公司 | Method and device for purifying xylose by valve array type multi-unit continuous ion exchange |
-
2017
- 2017-03-21 CN CN201720272339.6U patent/CN207221944U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450903A (en) * | 2020-05-21 | 2020-07-28 | 浙江华康药业股份有限公司 | Continuous ion exchange system for xylose production and use method thereof |
| CN114272960A (en) * | 2021-10-27 | 2022-04-05 | 欧尚元(天津)有限公司 | Method and device for purifying xylose by valve array type multi-unit continuous ion exchange |
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