CN105158245A - Device for determining weak-base radical exchange capacity of acrylic acid-series anion exchange resin - Google Patents
Device for determining weak-base radical exchange capacity of acrylic acid-series anion exchange resin Download PDFInfo
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- CN105158245A CN105158245A CN201510623679.4A CN201510623679A CN105158245A CN 105158245 A CN105158245 A CN 105158245A CN 201510623679 A CN201510623679 A CN 201510623679A CN 105158245 A CN105158245 A CN 105158245A
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- device body
- exchange resin
- scavenge trunk
- resin
- acrylic acid
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Abstract
The invention discloses a device for determining the weak-base radical exchange capacity of acrylic acid-series anion exchange resin. The device is composed of a device body B and a device body C. The device body B is an opened container. The device body C comprises a filter. An outlet pipeline of the device body C is provided with a flow control device, and an opening of the device body B is connected with the inlet end of the device body C. When the flow control device is closed, the device body C and the device body B form an airtight cavity and the size of the cavity is kept unchanged. The device body C is provided with a ventilation pipe. The bottom end of the ventilation pipe stretches into the device body B, and the top end of the ventilation pipe stretches out of the device body B. A gas flow control device is arranged at the top end of the ventilation pipe. In the static state, the bottom end of the ventilation pipe is located over the liquid level of reaction liquid. The device solves the problems that determination of the weak-base radical exchange capacity of the acrylic acid-series anion exchange resin is affected by suction resin when a transfer pipette is moved out of a soak solution and bottle plugs are broken in a test.
Description
Technical field
The invention belongs to power grid construction field, particularly a kind of device measuring acrylic acid type anion exchange resin weak base group exchange capacity.
Technical background
Ion exchange resin is widely used in generating plant, pharmaceutical factory, electron trade, plays an important role purifying water, except in anions and canons, removing organism etc. in anhydrating.Exchange capacity is the important performance indexes of ion exchange resin, and it is related to naval stores quality and the water yield processed, is related to the price between supplier and user and interests, so Accurate Determining ion exchange resin exchange capacity important in inhibiting.
Standard GB/T/T19861-2005 " acrylic acid type anion exchange resin highly basic group, weak base group and weak acid base exchange volumetric determination method " in 7.6 " weak base group exchange capacity mensuration " its to the effect that: get a certain amount of resin after treatment and proceed in tool plug triangular flask, add 100mL hydrochloric acid solution, shake up, cover tightly bottle stopper, put to soaking at room temperature 2 hours, soak solution 25mL in tool plug triangular flask (must not sucking-off resin) is shifted out with transfer pipet, put into another erlenmeyer flask, add appropriate reagent water and indicator, titration is carried out with standard solution of sodium hydroxide, volumescope according to consuming NaOH titer calculates acrylic acid type anion exchange resin weak base group exchange capacity.
GB/T19861-2005 " acrylic acid type anion exchange resin highly basic group is proved through overtesting, weak base group and weak acid base exchange volumetric determination method " in 7.6 " weak base group exchange capacity mensuration " Shortcomings part: shift out this operating conditions of soak solution 25mL in tool plug triangular flask (must not sucking-off resin) with transfer pipet harsh, should not grasp, especially when resin wet true density is less, on the top of soak solution, middle part, bottom is resin all adrift, resin will be inhaled into transfer pipet accidentally, cause test titration error, produce ion exchange resin exchange capacity error at measurment.
Summary of the invention
In order to solve the difficult problem sucking resin when transfer pipet shifts out soak solution, invent a kind of device measuring acrylic acid type anion exchange resin weak base group exchange capacity, guarantee the accuracy measuring acrylic acid type anion exchange resin weak base group exchange capacity, guarantee that test is carried out smoothly.
The object of this invention is to provide a kind of device measuring acrylic acid type anion exchange resin weak base group exchange capacity, described device (device A) is made up of device B and device C, device B is open containers, device C comprises filtrator, scavenge trunk, volume control device, the outlet conduit of described device C is provided with volume control device, and the opening of described device B is connected with the entrance point of described device C; When volume control device closes, form airtight cavity between described device C and device B and keep cavity constancy of volume; Described device C is provided with scavenge trunk, and the bottom of described scavenge trunk extends to device B inside, and the top of described scavenge trunk extends to device B outside, and described scavenge trunk top is provided with gas flow control device; Under static state, the bottom of described scavenge trunk is in more than reactant liquor liquid level.
Preferably, described device B is the container with outer grinding port, and described device C is the filtrator with interior ground, and the internal diameter of described interior ground is identical with outer grinding port external diameter.
Preferably, described device B is the container with interior ground, and described device C is the filtrator with outer grinding port, and the internal diameter of described interior ground is identical with outer grinding port external diameter.
At present, ion exchange resin bead footpath requires generally to be greater than 0.315 millimeter, but finds in experimentation: resin or impurity inevitably doped with part small particle diameter in reaction solution, therefore, in multiple preferred embodiment of the present invention, the aperture of preferred filter plate is less than 0.2 millimeter.
Preferred, described filtrator is provided with filter plate, and the aperture of described filter plate is 0.187-0.188 millimeter.
Preferably, the level height on the top of described scavenge trunk is lower than scavenge trunk bottom.When avoiding device A is inverted filter liquor, filtrate is run out of from tongs.
Preferably, when volume control device closes, described device C is positioned at the top of device B.
Preferably, described device B is flat conical vessel.
Preferably, described volume control device is piston or valve.
Preferably, the bottom surface of the inside of described device B has roughly conical shape, the thickness of the thick in the roughly conical shape of the described bottom surface of the inside of described device B is set to a ratio with the ratio of the thickness of most thin section, under this ratio, when described device B at the uniform velocity shakes, in the interface of described resin to be measured and described soak solution, the size resulting from the shear strain of described resin to be measured is the same.
The object of this invention is to provide a kind of method measuring acrylic acid type anion exchange resin weak base group exchange capacity, the ion exchange resin reacting the schedule time under predetermined condition is separated with reactant liquor, using the reactant liquor after separation as solution to be measured, measure the exchange capacity of ion exchange resin according to corresponding national regulations.
Concrete steps are as follows:
1) ion exchange resin and reactant liquor are reacted the schedule time under predetermined temperature in device A, obtain soak solution;
2) inverted device A, the flow controller of device for opening A and gas flow controller, filtration step 1) soak solution that obtains, obtain filtrate, filtrate is measured the exchange capacity of ion exchange resin according to corresponding national regulations.
Beneficial effect of the present invention:
Feature 1. as shown in Figure 1, the effect of the piston 1 on C device is: valve function, this piston is opened during filter infusion liquid, soak solution is separated automatically with the resin in device B, resin is stayed in device B, after soak solution is leached by device C, soak solution filtrate proceeds in another clean, dry tool plug erlenmeyer flask, for future use.
Feature 2. as shown in Figure 1, when filter liquor, open, play gas exchange action by the scavenge trunk 2 on C device by the tongs 5 on flexible pipe 4, and the degree of depth that scavenge trunk 2 inserts conical flask is conical flask 150mL scale mark 3 place.
As shown in Figure 1, the inwall of C device inlays a filter plate 10 to feature 3., and material is core or pottery, and its aperture is less than 0.2 millimeter;
As shown in Figure 1, piston on A device 1 and scavenge trunk 2, in the same side, are conducive to resin and flow out along same direction and easy to operate feature 4..
Design concept
This device A is made up of device B and device C, and device B and device C complete set, device C is enclosed within the outside forming apparatus A of device B.Device B is the 250mL erlenmeyer flask with outer grinding port; Device C has interior ground and device B is supporting, and device C is furnished with piston, scavenge trunk, filter core.After soak solution containing resin soaks 2 hours at normal temperatures, use device A that resin is separated rapidly with soak solution, the soak solution obtained is not resinous, thus avoids the difficult problem sucking resin when transfer pipet shifts out soak solution.
Accompanying drawing explanation
Fig. 1 device A wherein, 1-glass piston; 2-glass scavenge trunk; 3-conical flask 150mL scale mark; 4-flexible pipe; 5-tongs; 6-resin; 7-soak solution; 8-conical flask outer grinding port; Ground in 9-conical flask; 10-filter
Fig. 2 device B
Fig. 3 device C
The inverted A device of Fig. 4
Concrete embodiment
Embodiment 1
Apparatus of the present invention A is made up of device B and device C, and device B and device C complete set, device C is enclosed within the outside forming apparatus A of device B.Device B is the 250mL erlenmeyer flask with outer grinding port; Device C has interior ground and device B is supporting, and device C is furnished with piston, scavenge trunk, filter core.After soak solution containing resin soaks 2 hours at normal temperatures, use device A that resin is separated rapidly with soak solution, the soak solution obtained is not resinous, thus avoids the difficult problem sucking resin when transfer pipet shifts out soak solution.
As shown in Figure 1, the effect of the piston 1 on C device is: valve function, this piston is opened during filter infusion liquid, soak solution is separated automatically with the resin in device B, resin is stayed in device B, after soak solution is leached by device C, soak solution filtrate proceeds in another clean, dry tool plug erlenmeyer flask, for future use.
As shown in Figure 1, the tongs 5 on flexible pipe 4, when filter liquor, is opened, is played gas exchange action by the scavenge trunk 2 on C device, and the degree of depth that scavenge trunk 2 inserts conical flask is conical flask 150mL scale mark 3 place.
As shown in Figure 1, the inwall of C device inlays a filter plate 10, and material is core or pottery, and its aperture is less than 0.2 millimeter;
As shown in Figure 1, piston on A device 1 and scavenge trunk 2, in the same side, are conducive to resin and flow out along same direction and easy to operate.
Detailed operating procedures
The mensuration of 1 acrylic acid type anion exchange resin weak base group exchange capacity
1.1 take two parts removes the sample of outside moisture by GB/T5759 and is about 1g, is accurate to 0.1mg, is placed in dry respectively
In device B.
1.2 put in the device B of sample to each, and add 0.1mol/L hydrochloric acid standard solution 100.00mL with transfer pipet, shake up, device C is enclosed within forming apparatus A on device B, piston 1, tongs 5 are in closed condition.Device A normal temperature is placed after 2 hours and device A is inverted as shown in Figure 4, open piston 1, open tongs 5, in inverted device A lower end with the soak solution filtrate 11 that clean, a dry erlenmeyer flask then filters out, till the filtrate in device A has been filtered.
1.3 take out 25mL soak solution filtrate with transfer pipet from erlenmeyer flask is placed in another erlenmeyer flask, adds 50mL pure water and 2 methyl red-methylene blue mixing indicator solutions.
1.4 are titrated to bright green with the Standard Volumetric Solutions for Sodium Hydroxide of 0.1mol/L, keep 15s colour-fast, are terminal, do blank test simultaneously.
Embodiment 2
Be with the difference of embodiment 1, described device B is the container with outer grinding port, and described device C is the filtrator with interior ground, and the internal diameter of described interior ground is identical with outer grinding port external diameter.
Embodiment 3
Be with the difference of embodiment 1, described device B is the container with interior ground, and described device C is the filtrator with outer grinding port, and the internal diameter of described interior ground is identical with outer grinding port external diameter.
Embodiment 4
Be with the difference of embodiment 1, the level height on the top of described scavenge trunk is lower than scavenge trunk bottom.
Embodiment 5
Be with the difference of embodiment 1, the bottom surface of the inside of described device B has roughly conical shape, the thickness of the thick in the roughly conical shape of the described bottom surface of the inside of described device B is set to a ratio with the ratio of the thickness of most thin section, under this ratio, when described device B at the uniform velocity shakes, in the interface of described resin to be measured and described soak solution, the size resulting from the shear strain of described resin to be measured is the same.
Embodiment 6
Be with the difference of embodiment 1, described filtrator is provided with filter plate, and the aperture of described filter plate is less than 0.2 millimeter.Embodiment 7
Be with the difference of embodiment 1, described filtrator is provided with filter plate, and the aperture of described filter plate is 0.187-0.188 millimeter.
Although above-mentioned, the specific embodiment of the present invention is described; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Claims (10)
1. one kind measures the device of acrylic acid type anion exchange resin weak base group exchange capacity, it is characterized in that, described device is made up of device B and device C, device B is open containers, device C comprises filtrator, scavenge trunk, volume control device, the outlet conduit of described device C is provided with volume control device, and the opening of described device B is connected with the entrance point of described device C; When volume control device closes, form airtight cavity between described device C and device B and keep cavity constancy of volume; Described device C is provided with scavenge trunk, and the bottom of described scavenge trunk extends to device B inside, and the top of described scavenge trunk extends to device B outside, and described scavenge trunk top is provided with gas flow control device; Under static state, the bottom of described scavenge trunk is in more than reactant liquor liquid level.
2. device as claimed in claim 1, it is characterized in that, described device B is the container with outer grinding port, and described device C is the filtrator with interior ground, and the internal diameter of described interior ground is identical with outer grinding port external diameter.
3. device as claimed in claim 1, it is characterized in that, described device B is the container with interior ground, and described device C is the filtrator with outer grinding port, and the internal diameter of described interior ground is identical with outer grinding port external diameter.
4. device as claimed in claim 1, it is characterized in that, be provided with filter plate in described filtrator, the aperture of filter plate is less than 0.2 millimeter.
5. device as claimed in claim 1, it is characterized in that, the level height on the top of described scavenge trunk is lower than scavenge trunk bottom.
6. device as claimed in claim 1, it is characterized in that, when volume control device closes, described device C is positioned at the top of device B.
7. device as claimed in claim 1, it is characterized in that, described volume control device is piston or valve.
8. device as claimed in claim 1, it is characterized in that, the bottom surface of the inside of described device B has roughly conical shape, the thickness of the thick in the roughly conical shape of the described bottom surface of the inside of described device B is set to a ratio with the ratio of the thickness of most thin section, under this ratio, when described device B at the uniform velocity shakes, in the interface of described resin to be measured and described reactant liquor, the size resulting from the shear strain of described resin to be measured is the same.
9. the device described in any one of claim 1-8 is measuring the application in acrylic acid type anion exchange resin weak base group exchange capacity.
10. one kind measures the method for acrylic acid type anion exchange resin weak base group exchange capacity, it is characterized in that, the ion exchange resin reacting the schedule time under predetermined condition is separated with reactant liquor, using the reactant liquor after separation as solution to be measured, measure the exchange capacity of ion exchange resin according to corresponding national regulations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510623679.4A CN105158245A (en) | 2015-09-25 | 2015-09-25 | Device for determining weak-base radical exchange capacity of acrylic acid-series anion exchange resin |
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| CN201510623679.4A CN105158245A (en) | 2015-09-25 | 2015-09-25 | Device for determining weak-base radical exchange capacity of acrylic acid-series anion exchange resin |
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| CN201510623679.4A Pending CN105158245A (en) | 2015-09-25 | 2015-09-25 | Device for determining weak-base radical exchange capacity of acrylic acid-series anion exchange resin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114689830A (en) * | 2022-05-06 | 2022-07-01 | 华电电力科学研究院有限公司 | Bicarbonate radical exchange capacity detection method and device for anion resin |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2137531Y (en) * | 1992-09-12 | 1993-07-07 | 那树礼 | Transfusion system without air entering medicine liquor |
-
2015
- 2015-09-25 CN CN201510623679.4A patent/CN105158245A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2137531Y (en) * | 1992-09-12 | 1993-07-07 | 那树礼 | Transfusion system without air entering medicine liquor |
Non-Patent Citations (2)
| Title |
|---|
| 中华人民共和国国家质量监督检验检疫总局: "《GB/T 8144-2008 阳离子交换树脂交换容量测定方法》", 30 June 2008 * |
| 马达人: "无碳复写纸显色剂原料一一活性白土的研究", 《上海造纸》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114689830A (en) * | 2022-05-06 | 2022-07-01 | 华电电力科学研究院有限公司 | Bicarbonate radical exchange capacity detection method and device for anion resin |
| CN114689830B (en) * | 2022-05-06 | 2023-05-26 | 华电电力科学研究院有限公司 | Bicarbonate exchange capacity detection method and device for anion resin |
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