CN115287474A - Method for removing aluminum ions from praseodymium-neodymium chloride feed liquid - Google Patents
Method for removing aluminum ions from praseodymium-neodymium chloride feed liquid Download PDFInfo
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- CN115287474A CN115287474A CN202210955446.4A CN202210955446A CN115287474A CN 115287474 A CN115287474 A CN 115287474A CN 202210955446 A CN202210955446 A CN 202210955446A CN 115287474 A CN115287474 A CN 115287474A
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- neodymium chloride
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- 239000007788 liquid Substances 0.000 title claims abstract description 59
- WTQUHLHXFJEOTI-UHFFFAOYSA-H trichloroneodymium;trichloropraseodymium Chemical compound Cl[Pr](Cl)Cl.Cl[Nd](Cl)Cl WTQUHLHXFJEOTI-UHFFFAOYSA-H 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 33
- -1 aluminum ions Chemical class 0.000 title claims abstract description 31
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000004140 cleaning Methods 0.000 claims abstract description 31
- 239000007787 solid Substances 0.000 claims abstract description 22
- 238000000926 separation method Methods 0.000 claims abstract description 12
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 10
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 9
- 238000005406 washing Methods 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims description 38
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 18
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 11
- 239000003513 alkali Substances 0.000 claims description 9
- 238000007790 scraping Methods 0.000 claims description 9
- 238000001556 precipitation Methods 0.000 claims description 8
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- 235000006408 oxalic acid Nutrition 0.000 claims description 6
- RKLPWYXSIBFAJB-UHFFFAOYSA-N [Nd].[Pr] Chemical compound [Nd].[Pr] RKLPWYXSIBFAJB-UHFFFAOYSA-N 0.000 claims description 5
- 229910052779 Neodymium Inorganic materials 0.000 claims description 4
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 4
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 4
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 238000003916 acid precipitation Methods 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000007853 buffer solution Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 3
- 238000009776 industrial production Methods 0.000 abstract description 2
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 5
- 239000011259 mixed solution Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B59/00—Obtaining rare earth metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Removal Of Specific Substances (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for removing aluminum ions from a praseodymium-neodymium chloride feed liquid, which relates to the technical field of rare earth separation, and is realized by a device for removing aluminum ions from the praseodymium-neodymium chloride feed liquid. The invention can conveniently and rapidly empty the used cleaning water in the process of washing solid matters for many times, reduces the washing difficulty, effectively improves the washing efficiency and is more suitable for industrial production.
Description
Technical Field
The invention relates to the technical field of rare earth separation, in particular to a method for removing aluminum ions from praseodymium neodymium chloride feed liquid.
Background
Due to the diversity of the rare earth raw ore, the rare earth grade, the components and the content of non-rare earth impurities are extremely complex, the chemical leaching process for different ore species has great difference, and the difficulty is increased for the impurity removal process of the mixed rare earth chloride feed liquid, especially for the removal of aluminum ions in the rare earth feed liquid.
Patent application publication No. CN 110184460B's invention patent discloses a method of removing aluminium ion in praseodymium neodymium feed liquid, and this invention has opened up a new way and explored the hydrolysis process of aluminium ion in praseodymium neodymium feed liquid after extraction separation, has found the best condition that aluminium ion hydrolyzes through adding the additive, is used for getting rid of aluminium ion in praseodymium neodymium chloride feed liquid, and the experimental result shows that the precipitation rate of aluminium ion in praseodymium neodymium chloride feed liquid reaches more than 93%, and the precipitation rate of tombarthite is below 1.5%, and the volume of sediment is small, does benefit to solid-liquid separation.
However, the above method still has some disadvantages found after practical application by those skilled in the art, and it is obvious that when praseodymium and neodymium in the solution are recovered, the existing method needs to clean the precipitate for many times, and when the technicians discharge the used cleaning water after single cleaning, in order to avoid solid matter in the precipitate from being lost, a filter assembly needs to be arranged to block the solid matter in the precipitate, and in the process of filtering and outputting the cleaning water by the filter assembly, the solid matter in the precipitate is accumulated on the surface of the filter assembly, which further causes great influence on the cleaning water discharge efficiency, so that many times of flushing operations need to consume a long time, and the method is not suitable for industrial production while reducing the processing efficiency.
Therefore, it is necessary to invent a method for removing aluminum ions from a praseodymium neodymium chloride solution to solve the above problems.
Disclosure of Invention
The invention aims to provide a method for removing aluminum ions from a praseodymium neodymium chloride feed liquid, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a method for removing aluminum ions from a praseodymium neodymium chloride feed liquid is realized by a device for removing aluminum ions from the praseodymium neodymium chloride feed liquid, the device for removing aluminum ions from the praseodymium neodymium chloride feed liquid comprises a reaction kettle, a reciprocating pressurizing mechanism is arranged at the top of an inner cavity of the reaction kettle, a separating mechanism is arranged at the bottom outside the reciprocating pressurizing mechanism, a driving mechanism is arranged inside the reciprocating pressurizing mechanism, a piston plate in the reciprocating pressurizing mechanism drives a movable sleeve in the driving mechanism to descend, a limiting round platform in the driving mechanism limits a limiting rod in the separating mechanism, a cleaning mechanism is arranged at the bottom end of the driving mechanism, and a T-shaped shaft in the driving mechanism drives a lifting plate in the cleaning mechanism to ascend and descend.
Preferably, the reciprocating pressurization mechanism includes a driving motor, a driving shaft, a piston plate, and a guide rod.
Preferably, driving motor is fixed to be set up in the reation kettle top, the drive shaft is located reation kettle inner chamber top, the drive shaft is connected with the driving motor transmission, reciprocal screw thread has been seted up at drive shaft outside top, the piston board cup joint set up in the drive shaft outside and with drive shaft threaded connection, the guide bar is provided with two, two the guide bar slides respectively to run through and sets up in piston board bottom both sides, and all with reation kettle inner wall fixed connection.
Preferably, the separation mechanism comprises a separation plate and two movable separation components, and each movable separation component comprises an installation cavity, a sliding plate, a water passing hole, a limiting rod and a first return spring.
Preferably, the division board is fixedly arranged on the inner side of the reaction kettle and is rotatably sleeved and arranged at the bottom end of the outer side of the driving shaft through a bearing, the mounting cavity is arranged inside the division board, the sliding plate is arranged on the inner side of the mounting cavity in a sliding mode, the water holes are arranged in a plurality of and are arranged on the division board and the sliding plate uniformly, the limiting rod is fixedly arranged at one end of the sliding plate, the first reset spring is fixedly arranged at the other end of the sliding plate, the limiting rod penetrates through the inner wall of the mounting cavity in a sliding mode and extends to the inner side of the division board, and one end, far away from the sliding plate, of the first reset spring is fixedly connected with the inner wall of the mounting cavity.
Preferably, the driving mechanism comprises a T-shaped shaft, a movable sleeve, a second return spring, a fixed block, a limiting circular truncated cone, a guide sleeve and a coating sleeve.
Preferably, the T-shaped shaft slides along vertical direction and nestedly sets up inside the drive shaft, the movable sleeve rotates through the bearing to cup joint and sets up in the T-shaped off-axial side, second reset spring fixed connection is in T-shaped off-axial top portion, fixed block fixed connection is on second reset spring top, and with drive shaft inner wall fixed connection, spacing round platform rotates through the bearing to cup joint and sets up in the T-shaped off-axial side, the guide sleeve slides to cup joint and sets up in the T-shaped off-axial side, the fixed cover of cladding sleeve connects and sets up in the guide sleeve outside, the cladding sleeve is fixed to be set up in the division board inboardly.
Preferably, the cleaning mechanism comprises a lifting plate and two cleaning components, and the cleaning components comprise a threaded sleeve, a driving screw, a scraping plate and an avoiding groove.
Preferably, the lifter plate rotates through the bearing and cup joints and sets up in T shape axle bottom, the thread bush is fixed to run through and sets up in lifter plate top side, drive screw threaded connection is inboard in the thread bush, and runs through division board and sliding plate and extend to the division board top, scrape the board and fix and set up in drive screw top and laminate with the division board top, dodge the groove and set up on the sliding plate, drive screw slides and sets up in dodging the inslot side.
Preferably, the method for removing aluminum ions from the praseodymium neodymium chloride feed liquid specifically comprises the following steps:
s1, after adjusting the rare earth concentration of a praseodymium-neodymium chloride feed liquid, sequentially adding an alkali liquor and a buffer solution into the praseodymium-neodymium chloride feed liquid, then adding the alkali liquor into the praseodymium-neodymium chloride feed liquid again to enable the alkali liquor to generate a precipitation reaction, then adding acrylamide into the praseodymium-neodymium chloride feed liquid to enable the acrylamide to generate a flocculation reaction, then performing solid-liquid separation on the praseodymium-neodymium chloride feed liquid, and performing carbon precipitation on the obtained liquid by using a sodium bicarbonate aqueous solution to obtain a qualified praseodymium-neodymium chloride feed liquid;
s2, adding the obtained solid into a reaction kettle, then injecting water into the reaction kettle, further washing the solid, after the water injection is finished, driving a driving shaft to rotate by a driving motor, and driving a piston plate to descend along a guide rod when the driving shaft rotates, so that the air pressure at the top of the inner cavity of the reaction kettle is enhanced;
s3, when the descending distance of the piston plate reaches a first threshold value, the T-shaped shaft starts to be pressed down, the movable sleeve drives the T-shaped shaft to descend in the driving shaft, the T-shaped shaft drives the limiting circular table and the lifting plate to descend synchronously when descending, the limiting of the limiting rod is relieved when descending, the first reset spring pushes the sliding plate to move on the inner side of the mounting cavity at the moment, the water passing holes in the sliding plate are collinear with the water passing holes in the separating plate, and the cleaning water quickly penetrates through the sliding plate to flow to the bottom of the inner cavity of the reaction kettle under the pushing of the air pressure at the top of the inner cavity of the reaction kettle;
s4, the lifting plate drives the threaded sleeve to synchronously descend when descending, the threaded sleeve drives the driving screw to rotate when descending, and the driving screw drives the scraping plate to continuously rotate at the top of the partition plate so as to continuously push solid matters accumulated at the top of the partition plate;
s5, when the descending distance of the piston plate reaches a second threshold value, cleaning water is drained, the piston plate starts to ascend under the continuous driving of the driving shaft, the second return spring drives the T-shaped shaft to return at the moment, the T-shaped shaft drives the threaded sleeve to return synchronously, the limiting circular truncated cone drives the sliding plate to return, the cleaning water can be injected into the reaction kettle again at the moment, and then solid substances are washed again;
and S6, after repeating the washing operation for multiple times, adding hydrochloric acid into the reaction kettle, dissolving the solid substances by the hydrochloric acid, then adding oxalic acid into the mixed solution, and then recovering the praseodymium and neodymium in the mixed solution through oxalic acid precipitation.
The invention has the technical effects and advantages that:
the invention is provided with the reciprocating supercharging mechanism, the separating mechanism, the driving mechanism and the cleaning mechanism, so that the reciprocating supercharging mechanism is utilized to increase the top air pressure of the inner cavity of the reaction kettle in the washing process, and simultaneously the reciprocating supercharging mechanism triggers the driving mechanism after the washing is finished, so that the driving mechanism respectively triggers the separating mechanism and the cleaning mechanism, and the cleaning mechanism continuously pushes the solid matters accumulated on the surface of the separating mechanism while the separating mechanism discharges the cleaning water.
Drawings
Fig. 1 is an overall front sectional structural view of the present invention.
Fig. 2 is a schematic structural view of the reciprocating pressurization mechanism of the invention.
Fig. 3 is a front sectional structural schematic view of the separating mechanism and the cleaning mechanism of the present invention.
Fig. 4 is a front sectional structural schematic diagram of the driving mechanism of the present invention.
In the figure: 1. a reaction kettle; 2. a reciprocating supercharging mechanism; 21. a drive motor; 22. a drive shaft; 23. a piston plate; 24. a guide rod; 3. a separation mechanism; 31. a partition plate; 32. a mounting cavity; 33. a sliding plate; 34. water passing holes; 35. a limiting rod; 36. a first return spring; 4. a drive mechanism; 41. a T-shaped shaft; 42. an active cannula; 43. a second return spring; 44. a fixed block; 45. a limiting round table; 46. a guide sleeve; 47. coating the sleeve; 5. a cleaning mechanism; 51. a lifting plate; 52. a threaded bushing; 53. a drive screw; 54. a scraping plate; 55. avoiding the groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a method for removing aluminum ions from a praseodymium-neodymium chloride feed liquid, which is shown in fig. 1-4, and is realized by a device for removing aluminum ions from the praseodymium-neodymium chloride feed liquid, the device for removing aluminum ions from the praseodymium-neodymium chloride feed liquid comprises a reactor 1, a reciprocating supercharging mechanism 2 is arranged at the top of an inner cavity of the reactor 1, a separating mechanism 3 is arranged at the bottom of the outer side of the reciprocating supercharging mechanism 2, a driving mechanism 4 is arranged in the reciprocating supercharging mechanism 2, a piston plate 23 in the reciprocating supercharging mechanism 2 drives a movable sleeve 42 in the driving mechanism 4 to descend, a limiting circular table 45 in the driving mechanism 4 limits a limiting rod 35 in the separating mechanism 3, a cleaning mechanism 5 is arranged at the bottom end of the driving mechanism 4, and a T-shaped shaft 41 in the driving mechanism 4 drives a lifting plate 51 in the cleaning mechanism 5 to ascend and descend.
As shown in fig. 2, the reciprocating supercharging mechanism 2 includes a driving motor 21, a driving shaft 22, a piston plate 23 and guide rods 24, wherein the driving motor 21 is fixedly arranged at the top of the reaction kettle 1, the driving shaft 22 is located at the top of the inner cavity of the reaction kettle 1, the driving shaft 22 is in transmission connection with the driving motor 21, reciprocating threads are arranged at the top of the outer side of the driving shaft 22, the piston plate 23 is sleeved on the outer side of the driving shaft 22 and in threaded connection with the driving shaft 22, the guide rods 24 are provided with two, and the guide rods 24 are respectively arranged at two sides of the bottom of the piston plate 23 in a sliding and penetrating manner and are fixedly connected with the inner wall of the reaction kettle 1.
By adopting the above structure, the driving motor 21 rotates the driving shaft 22, so that the piston plate 23 is repeatedly lifted and lowered along the guide rod 24.
As shown in fig. 3, the partition mechanism 3 includes a partition plate 31 and two movable partition components, the movable partition components include an installation cavity 32, a sliding plate 33, water passing holes 34, a limiting rod 35 and a first return spring 36, wherein the partition plate 31 is fixedly arranged inside the reaction kettle 1 and rotatably sleeved on the bottom end outside the driving shaft 22 through a bearing, the installation cavity 32 is arranged inside the partition plate 31, the sliding plate 33 is slidably arranged inside the installation cavity 32, the water passing holes 34 are provided in plural numbers, the water passing holes 34 are uniformly arranged on the partition plate 31 and the sliding plate 33, the limiting rod 35 is fixedly arranged at one end of the sliding plate 33, the first return spring 36 is fixedly arranged at the other end of the sliding plate 33, the limiting rod 35 slidably penetrates through the inner wall of the installation cavity 32 and extends to the inner side of the partition plate 31, and one end of the first return spring 36 far away from the sliding plate 33 is fixedly connected with the inner wall of the installation cavity 32.
Through setting up above-mentioned structure to when gag lever post 35 was relieved spacingly, first reset spring 36 promoted sliding plate 33, and then made the water hole 34 of crossing on the sliding plate 33 and the water hole 34 collineation of crossing on the division board 31, wash water this moment and can pass water hole 34 and be discharged.
As shown in fig. 4, the driving mechanism 4 includes a T-shaped shaft 41, a movable sleeve 42, a second return spring 43, a fixed block 44, a limiting circular truncated cone 45, a guiding sleeve 46 and a covering sleeve 47, wherein the T-shaped shaft 41 is nested inside the driving shaft 22 along the vertical direction in a sliding manner, the movable sleeve 42 is sleeved outside the T-shaped shaft 41 through a bearing rotation, the second return spring 43 is fixedly connected to the top of the T-shaped shaft 41, the fixed block 44 is fixedly connected to the top end of the second return spring 43 and is fixedly connected to the inner wall of the driving shaft 22, the limiting circular truncated cone 45 is sleeved outside the T-shaped shaft 41 through a bearing rotation, the guiding sleeve 46 is sleeved outside the T-shaped shaft 41 in a sliding manner, the covering sleeve 47 is fixedly sleeved outside the guiding sleeve 46, and the covering sleeve 47 is fixedly arranged inside the partition plate 31.
Through setting up above-mentioned structure to when movable sleeve 42 drove T shape axle 41 and descends, T shape axle 41 can drive spacing round platform 45 synchronous decline, and then removes spacing round platform 45 spacing to gag lever post 35, simultaneously because drive shaft 22 drives T shape axle 41 and continues the rotation, therefore the setting of movable sleeve 42 makes piston plate 23 can promote the decline of T shape axle 41 simultaneously, can also avoid piston plate 23 and T shape axle 41 direct contact and the wearing and tearing that lead to.
As shown in fig. 3, clean mechanism 5 includes lifter plate 51 and two clean subassemblies, clean subassembly includes threaded sleeve 52, drive screw 53, scraping plate 54 and dodges the groove 55, wherein, lifter plate 51 rotates through the bearing to cup joint and sets up in T shape axle 41 bottom, threaded sleeve 52 is fixed to run through and sets up in lifter plate 51 top side, drive screw 53 threaded connection is inboard in threaded sleeve 52, and runs through division board 31 and sliding plate 33 and extend to division board 31 top, scraping plate 54 is fixed to be set up in drive screw 53 top and with the top laminating of division board 31, dodge the groove 55 and set up on sliding plate 33, drive screw 53 slides and sets up in dodging the groove 55 inboard.
Through setting up above-mentioned structure to drive screw 53 rotation through threaded sleeve 52 when lifter plate 51 goes up and down, and then make drive screw 53 drive scraping plate 54 and continue to rotate at the division board 31 top, and then promote the solid matter of piling up at the division board 31 top, avoid the solid matter to cause to block to crossing water hole 34.
Example 2
The method for removing aluminum ions from the praseodymium neodymium chloride feed liquid specifically comprises the following steps:
s1, after adjusting the rare earth concentration of a praseodymium-neodymium chloride feed liquid, sequentially adding an alkali liquor and a buffer solution into the praseodymium-neodymium chloride feed liquid, then adding the alkali liquor into the praseodymium-neodymium chloride feed liquid again to enable the alkali liquor to generate a precipitation reaction, then adding acrylamide into the praseodymium-neodymium chloride feed liquid to enable the acrylamide to generate a flocculation reaction, then performing solid-liquid separation on the praseodymium-neodymium chloride feed liquid, and performing carbon precipitation on the obtained liquid by using a sodium bicarbonate aqueous solution to obtain a qualified praseodymium-neodymium chloride feed liquid;
s2, adding the obtained solid into the reaction kettle 1, then injecting water into the reaction kettle 1 to wash the solid, and after the water injection is finished, driving the driving motor 21 to drive the driving shaft 22 to rotate, and driving the piston plate 23 to descend along the guide rod 24 when the driving shaft 22 rotates, so that the air pressure at the top of the inner cavity of the reaction kettle 1 is enhanced;
s3, when the descending distance of the piston plate 23 reaches a first threshold value, the T-shaped shaft 41 starts to be pressed downwards, the movable sleeve 42 drives the T-shaped shaft 41 to descend in the driving shaft 22, the limiting circular table 45 and the lifting plate 51 are driven to synchronously descend when the T-shaped shaft 41 descends, the limiting of the limiting rod 35 is relieved when the limiting circular table 45 descends, the first return spring 36 pushes the sliding plate 33 to move on the inner side of the mounting cavity 32 at the moment, the water through holes 34 in the sliding plate 33 are made to be collinear with the water through holes 34 in the partition plate 31, and cleaning water quickly penetrates through the sliding plate 33 to flow to the bottom of the inner cavity of the reaction kettle 1 under the pushing of the air pressure at the top of the inner cavity of the reaction kettle 1 at the moment;
s4, the lifting plate 51 drives the threaded sleeve 52 to synchronously descend when descending, the threaded sleeve 52 drives the driving screw 53 to rotate when descending, and the driving screw 53 drives the scraping plate 54 to continuously rotate at the top of the partition plate 31 so as to continuously push solid matters accumulated at the top of the partition plate 31;
s5, when the descending distance of the piston plate 23 reaches a second threshold value, cleaning water is drained, the piston plate 23 starts to ascend under the continuous driving of the driving shaft 22, at the moment, the second return spring 43 drives the T-shaped shaft 41 to return, the T-shaped shaft 41 drives the threaded sleeve 52 to return synchronously, the limiting circular table 45 drives the sliding plate 33 to return, at the moment, the cleaning water can be injected into the reaction kettle 1 again, and then solid matters are washed again;
and S6, after repeating the washing operation for multiple times, adding hydrochloric acid into the reaction kettle 1, dissolving the solid matters by the hydrochloric acid, then adding oxalic acid into the mixed solution, and then recovering the praseodymium and neodymium in the mixed solution through oxalic acid precipitation.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. A method for removing aluminum ions from praseodymium neodymium chloride feed liquid is characterized by comprising the following steps: the method for removing aluminum ions from the praseodymium neodymium feed liquid is realized through a device for removing aluminum ions from the praseodymium neodymium feed liquid, the device for removing aluminum ions from the praseodymium neodymium feed liquid comprises a reaction kettle (1), a reciprocating supercharging mechanism (2) is arranged at the top of an inner cavity of the reaction kettle (1), a separating mechanism (3) is arranged at the bottom of the outer side of the reciprocating supercharging mechanism (2), a driving mechanism (4) is arranged inside the reciprocating supercharging mechanism (2), a piston plate (23) in the reciprocating supercharging mechanism (2) drives a movable sleeve (42) in the driving mechanism (4) to descend, a limiting round platform (45) in the driving mechanism (4) limits a limiting rod (35) in the separating mechanism (3), a cleaning mechanism (5) is arranged at the bottom end of the driving mechanism (4), and a T-shaped shaft (41) in the driving mechanism (4) drives a lifting plate (51) in the cleaning mechanism (5) to ascend and descend.
2. The method for removing aluminum ions from praseodymium neodymium chloride feed liquid according to claim 1, wherein: the reciprocating supercharging mechanism (2) comprises a driving motor (21), a driving shaft (22), a piston plate (23) and a guide rod (24).
3. The method for removing aluminum ions from praseodymium neodymium chloride feed liquid according to claim 2, wherein: driving motor (21) are fixed to be set up in reation kettle (1) top, drive shaft (22) are located reation kettle (1) inner chamber top, drive shaft (22) are connected with driving motor (21) transmission, reciprocal screw thread has been seted up at drive shaft (22) outside top, piston board (23) cup joint set up in drive shaft (22) outside and with drive shaft (22) threaded connection, guide bar (24) are provided with two, two guide bar (24) slide respectively to run through and set up in piston board (23) bottom both sides, and all with reation kettle (1) inner wall fixed connection.
4. The method for removing aluminum ions from a praseodymium neodymium chloride feed liquid according to claim 3, wherein the method comprises the following steps: the separating mechanism (3) comprises a separating plate (31) and two movable separating components, and the movable separating components comprise an installation cavity (32), a sliding plate (33), a water passing hole (34), a limiting rod (35) and a first return spring (36).
5. The method for removing aluminum ions from praseodymium neodymium chloride feed liquid according to claim 4, wherein: division board (31) are fixed set up in reation kettle (1) inboard and rotate through the bearing and cup joint and set up in drive shaft (22) outside bottom, division board (31) are seted up inside division board (31) in installation cavity (32), sliding plate (33) slide and set up in installation cavity (32) inboard, it is provided with a plurality ofly, a plurality of to cross water hole (34) evenly set up on division board (31) and sliding plate (33), gag lever post (35) are fixed to be set up in sliding plate (33) one end, first reset spring (36) are fixed to be set up in the sliding plate (33) other end, gag lever post (35) slide run through installation cavity (32) inner wall and extend to division board (31) inboard, the one end and installation cavity (32) inner wall fixed connection that sliding plate (33) were kept away from to first reset spring (36).
6. The method for removing aluminum ions from praseodymium neodymium chloride feed liquid according to claim 5, wherein: the driving mechanism (4) comprises a T-shaped shaft (41), a movable sleeve (42), a second return spring (43), a fixed block (44), a limiting circular truncated cone (45), a guide sleeve (46) and a coating sleeve (47).
7. The method for removing aluminum ions from praseodymium neodymium chloride feed liquid according to claim 6, wherein: t shape axle (41) slide along vertical direction nestedly and set up inside drive shaft (22), movable sleeve (42) rotate through the bearing and cup joint and set up in the T shape axle (41) outside, second reset spring (43) fixed connection is in T shape axle (41) top, fixed block (44) fixed connection is on second reset spring (43) top, and with drive shaft (22) inner wall fixed connection, spacing round platform (45) rotate through the bearing and cup joint and set up in the T shape axle (41) outside, guide sleeve (46) slip cup joint sets up in the T shape axle (41) outside, cladding sleeve (47) are fixed to be cup jointed and set up in guide sleeve (46) outside, cladding sleeve (47) are fixed to be set up in division board (31) inboard.
8. The method for removing aluminum ions from praseodymium neodymium chloride feed liquid according to claim 7, wherein: the cleaning mechanism (5) comprises a lifting plate (51) and two cleaning components, wherein each cleaning component comprises a threaded sleeve (52), a driving screw (53), a scraping plate (54) and an avoiding groove (55).
9. The method for removing aluminum ions from a praseodymium neodymium chloride feed liquid according to claim 8, wherein the method comprises the following steps: lifter plate (51) rotate through the bearing to cup joint and set up in T shape axle (41) bottom, threaded sleeve pipe (52) are fixed to be run through and set up in lifter plate (51) top side, drive screw (53) threaded connection is inboard in threaded sleeve pipe (52), and runs through division board (31) and sliding plate (33) and extend to division board (31) top, scrape board (54) and fix and set up in drive screw (53) top and laminate with division board (31) top, it sets up on sliding plate (33) to dodge groove (55), drive screw (53) slide and set up in dodging groove (55) inboardly.
10. The method for removing aluminum ions from a praseodymium neodymium chloride feed liquid according to claim 9, wherein the method for removing aluminum ions from a praseodymium neodymium chloride feed liquid specifically comprises the following steps:
s1, after adjusting the rare earth concentration of a praseodymium-neodymium chloride feed liquid, sequentially adding an alkali liquor and a buffer solution into the praseodymium-neodymium chloride feed liquid, then adding the alkali liquor into the praseodymium-neodymium chloride feed liquid again to enable the alkali liquor to generate a precipitation reaction, then adding acrylamide into the praseodymium-neodymium chloride feed liquid to enable the acrylamide to generate a flocculation reaction, then performing solid-liquid separation on the praseodymium-neodymium chloride feed liquid, and performing carbon precipitation on the obtained liquid by using a sodium bicarbonate aqueous solution to obtain a qualified praseodymium-neodymium chloride feed liquid;
s2, adding the obtained solid into the reaction kettle (1), then injecting water into the reaction kettle (1) to further wash the solid, after the water injection is finished, driving a driving motor (21) to drive a driving shaft (22) to rotate, and driving a piston plate (23) to descend along a guide rod (24) when the driving shaft (22) rotates to further enhance the air pressure at the top of the inner cavity of the reaction kettle (1);
s3, when the descending distance of the piston plate (23) reaches a first threshold value, the T-shaped shaft (41) is pressed down, the movable sleeve (42) drives the T-shaped shaft (41) to descend in the driving shaft (22), the T-shaped shaft (41) drives the limiting circular table (45) to descend synchronously with the lifting plate (51), the limiting of the limiting rod (35) is released when the limiting circular table (45) descends, at the moment, the first return spring (36) pushes the sliding plate (33) to move on the inner side of the mounting cavity (32), further, the water through holes (34) in the sliding plate (33) and the water through holes (34) in the partition plate (31) are collinear, and at the moment, the piston plate is pushed by air pressure at the top of the inner cavity of the reaction kettle (1) to quickly penetrate through the sliding plate (33) to flow to the bottom of the inner cavity of the reaction kettle (1);
s4, the lifting plate (51) is driven to synchronously descend when descending, the threaded sleeve (52) is driven to rotate when descending, the driving screw (53) is driven to rotate, the driving screw (53) drives the scraping plate (54) to continuously rotate at the top of the partition plate (31), and then solid matters accumulated at the top of the partition plate (31) are continuously pushed;
s5, when the descending distance of the piston plate (23) reaches a second threshold value, cleaning water is drained, the piston plate (23) starts to ascend under the continuous driving of the driving shaft (22), at the moment, the second return spring (43) drives the T-shaped shaft (41) to return, the T-shaped shaft (41) drives the threaded sleeve (52) to return synchronously, the limiting circular table (45) drives the sliding plate (33) to return, at the moment, the cleaning water can be injected into the reaction kettle (1) again, and then solid matter is washed again;
and S6, after the washing operation is repeated for a plurality of times, adding hydrochloric acid into the reaction kettle (1), dissolving the solid matter by the hydrochloric acid, then adding oxalic acid into the mixed liquor, and then recovering the praseodymium and neodymium in the mixed liquor through oxalic acid precipitation.
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Denomination of invention: A method for removing aluminum ions from praseodymium neodymium chloride solution Effective date of registration: 20231228 Granted publication date: 20230714 Pledgee: Ganzhou Bank Co.,Ltd. Jishui Branch Pledgor: JISHUI JINCHENG NEW MATERIAL PROCESSING Co.,Ltd. Registration number: Y2023980075458 |