CN221319335U - Ferric phosphate mother liquor processing apparatus - Google Patents
Ferric phosphate mother liquor processing apparatus Download PDFInfo
- Publication number
- CN221319335U CN221319335U CN202323276782.5U CN202323276782U CN221319335U CN 221319335 U CN221319335 U CN 221319335U CN 202323276782 U CN202323276782 U CN 202323276782U CN 221319335 U CN221319335 U CN 221319335U
- Authority
- CN
- China
- Prior art keywords
- mother liquor
- thickener
- washing
- tank
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000012452 mother liquor Substances 0.000 title claims abstract description 112
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 title claims abstract description 41
- 229910000399 iron(III) phosphate Inorganic materials 0.000 title claims abstract description 31
- 239000005955 Ferric phosphate Substances 0.000 title claims abstract description 30
- 229940032958 ferric phosphate Drugs 0.000 title claims abstract description 30
- 238000012545 processing Methods 0.000 title description 4
- 239000007788 liquid Substances 0.000 claims abstract description 86
- 238000005406 washing Methods 0.000 claims abstract description 84
- 239000002562 thickening agent Substances 0.000 claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000003825 pressing Methods 0.000 claims abstract description 29
- 239000012528 membrane Substances 0.000 claims abstract description 27
- 239000002002 slurry Substances 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 21
- 229910000398 iron phosphate Inorganic materials 0.000 claims abstract description 10
- 238000012546 transfer Methods 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 5
- 239000006228 supernatant Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 28
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 22
- 229910052742 iron Inorganic materials 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 11
- 239000000243 solution Substances 0.000 description 10
- 239000007787 solid Substances 0.000 description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 229910052698 phosphorus Inorganic materials 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- BMTOKWDUYJKSCN-UHFFFAOYSA-K iron(3+);phosphate;dihydrate Chemical compound O.O.[Fe+3].[O-]P([O-])([O-])=O BMTOKWDUYJKSCN-UHFFFAOYSA-K 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000012266 salt solution Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010413 mother solution Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Abstract
The utility model relates to the technical field of ferric phosphate mother liquor treatment, in particular to an iron phosphate mother liquor treatment device, which comprises a mother liquor treatment unit, a washing water treatment unit, a thick slurry ground tank and production filter pressing equipment, wherein the mother liquor treatment unit comprises a mother liquor thickener, a mother liquor filter press and a mother liquor clean liquid tank which are sequentially communicated; the washing water treatment unit comprises a washing liquid thickener, a washing liquid filter press, a washing liquid clear liquid tank and a membrane thickener which are sequentially connected, wherein the membrane thickener is also communicated with the mother liquid clear liquid tank; the thick pulp ground tanks are communicated with bottom liquid outlets of the mother liquor thickener and the washing liquor thickener; the production filter pressing equipment is communicated with the thick slurry ground tank. The problems that in the prior art, after mother liquor and washing water are mixed and collected, the mother liquor is filtered by a filter press and then enters a membrane concentration system for concentration and recycling, and the workload of the membrane concentration system is large are solved.
Description
Technical Field
The utility model relates to the technical field of ferric phosphate mother liquor treatment, in particular to a ferric phosphate mother liquor treatment device.
Background
The process for directly synthesizing battery grade ferric phosphate by pure iron and industrial phosphoric acid comprises (1) dissolving iron, namely placing pure iron into a heated refined phosphoric acid solution to perform an iron dissolving reaction to obtain a ferrophosphorus salt solution containing Fe (H2 PO 4) 2; (2) reaction aging: adding hydrogen peroxide into the filtrate of the ferrophosphorus salt solution, carrying out oxidation reaction in a stirring state, enabling Fe (H2 PO 4) 2 to react to generate ferric phosphate, and aging to obtain ferric phosphate feed liquid; (3) Filter-pressing and washing, namely filter-pressing and washing the aged ferric phosphate feed liquid, and treating and recycling mother liquor and washing water in the washing process; (4) And (3) dewatering, namely sequentially drying, calcining, crushing, batch mixing and packaging the solid ferric phosphate subjected to filter pressing to obtain a finished product of the battery-grade anhydrous ferric phosphate.
Reaction principle of pure iron method ferric phosphate process:
(1) Fe (solid) +h3po4 (liquid) =fe (H2 PO 4) 2 (solid) +h2 (gas) +heat
(2) Fe (H2 PO 4) 2 (solid) +h2o2 (liquid) =fepo4.2h2o (solid) +h3po4 (liquid)
(3) FePO4, 2H2O (solid) =FePO 4 (solid) +H2O (liquid)
The main component of the mother liquor produced in the filter-pressing washing procedure is 10% dilute phosphoric acid, which contains ferric phosphate dihydrate and a small amount of impurities. The mother liquor is generally subjected to filter pressing treatment, 10% of the filtrate of the dilute phosphoric acid is recycled to be matched with acid-soluble iron in a front-end system, and a filter cake containing ferric phosphate dihydrate and a small amount of impurities cannot be recycled to the system and can only be used as a compound fertilizer additive.
The main component of the washing water generated in the filter-pressing washing procedure is dilute phosphoric acid with the content of 6 percent, contains trace impurities, is subjected to filter-pressing treatment, is sent to a concentration device for concentration to 12 percent, is recycled to be matched with acid-soluble iron in a front-end system, and is recycled as washing water after concentrated condensate.
Compared with other ammonia process, sodium process and ferrous process, the pure iron process ferric phosphate mother liquor does not generate byproducts, and the washed mother liquor and washing water basically do not contain other impurity ions, and generally do not need to be subjected to advanced treatment. The traditional treatment process of the mother liquor is that after the mother liquor is mixed with washing water and collected, the mother liquor is filtered by a filter press and then enters a membrane concentration system for concentration and recycling, so that the workload of the membrane concentration system is larger; and the ferric phosphate materials contained in the mother solution and the washing water are scrapped after the cake is removed by filtration, so that a large amount of iron and phosphorus resources are wasted.
Disclosure of utility model
The utility model aims to overcome the technical defects, and provides an iron phosphate mother liquor treatment device which solves the problems that in the prior art, after mother liquor and washing water are mixed and collected, the mother liquor is filtered by a filter press and then enters a membrane concentration system for concentration and recycling, so that the workload of the membrane concentration system is large, and iron phosphate materials contained in the mother liquor and the washing water are scrapped after being filtered and discharged, a large amount of iron and phosphorus resources are wasted and the like.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
the utility model provides an iron phosphate mother liquor treatment device, which comprises:
The mother liquor treatment unit comprises a mother liquor thickener, a mother liquor filter press and a mother liquor clear solution tank which are communicated in sequence;
The washing water treatment unit comprises a washing liquid thickener, a washing liquid filter press, a washing liquid clean liquid tank and a membrane thickener which are sequentially connected, wherein the membrane thickener is also communicated with the mother liquid clean liquid tank;
The thick pulp ground tanks are communicated with the bottom liquid outlets of the mother liquor thickener and the washing liquor thickener; and
And the production filter pressing equipment is communicated with the thick slurry ground tank.
In some embodiments, a first transfer pump is connected between the mother liquor thickener and the mother liquor filter press.
In some embodiments, a second transfer pump is connected between the wash thickener and the wash filter press, and a third transfer pump is connected between the wash liquor tank and the membrane thickener.
In some embodiments, a fourth transfer pump is connected between the dense slurry tank and the production press.
In some embodiments, the mother liquor supernatant tank is in communication with an acid dosing device via a fifth transfer pump.
In some embodiments, the first, second, third, fourth, and fifth transfer pumps are all FS/FSZ102 in model number.
In some embodiments, the interior of both the mother liquor thickener and the wash thickener are provided with stirring elements.
In some embodiments, a concentration detector is disposed within the membrane thickener.
In some embodiments, the volume of the concentrate tank is 10m 3 and the volumes of the wash and mother liquor tanks are 750m 3.
In some embodiments, the mother liquor filter press and the wash liquor filter press are each model XAZGS200/1250-UF.
Compared with the prior art, the iron phosphate mother liquor treatment device comprises a mother liquor treatment unit, a washing water treatment unit, a thick paste trough and production filter pressing equipment, wherein the mother liquor treatment unit comprises a mother liquor thickener, a mother liquor filter press and a mother liquor clean liquid tank which are sequentially communicated; the washing water treatment unit comprises a washing liquid thickener, a washing liquid filter press, a washing liquid clear liquid tank and a membrane thickener which are sequentially connected, wherein the membrane thickener is also communicated with the mother liquid clear liquid tank; the thick pulp ground tanks are communicated with bottom liquid outlets of the mother liquor thickener and the washing liquor thickener; the production filter pressing equipment is communicated with the thick slurry ground tank; through washing liquid thickener and washing liquid pressure filter combining together carry out hierarchical processing to the washing liquid, the protection film concentrator filters the washing liquid and does not receive other solid particle's influence, can realize the continuous stable work of film concentrator, simultaneously, in the clear solution after the film concentrator concentration was carried to the mother liquor clear solution jar for dilute phosphoric acid can cyclic utilization, has reduced the work load of film concentrator, and whole production running cost is low, iron and phosphorus resource recovery rate is high and the treatment effect is better.
Drawings
Fig. 1 is a schematic structural diagram of an iron phosphate mother liquor treatment device provided by the utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1, the present utility model provides a ferric phosphate mother liquor treatment device. The ferric phosphate mother liquor treatment device can separate mother liquor and washing water for treatment, can realize continuous and stable production of membrane concentration, ensures that the mother liquor and the washing liquid can be recycled, and has low overall production operation cost, high phosphorus resource recovery rate and good treatment effect.
In the specific embodiment, the ferric phosphate mother liquor treatment device comprises a mother liquor treatment unit 1, a washing water treatment unit 2, a thick paste trough 3 and production filter pressing equipment 4, wherein the mother liquor treatment unit comprises a mother liquor thickener 11, a mother liquor filter press 12 and a mother liquor clear liquid tank 13 which are sequentially communicated; the washing water treatment unit comprises a washing water thickener 21, a washing water filter press 22, a washing water clean liquid tank 23 and a membrane thickener 24 which are sequentially connected, wherein the membrane thickener 24 is also communicated with the mother liquor clean liquid tank 13; the thick paste ground tanks 3 are communicated with bottom liquid outlets of the mother liquor thickener 11 and the washing liquor thickener 21; the production filter-pressing equipment 4 is communicated with the thick slurry ground tank 3, and specifically, the production filter-pressing equipment 4 is a filter-pressing washer.
In the actual use process, the iron phosphate dihydrate feed liquid after reaction aging, mother liquor and washing water generated by filter pressing and washing in the filter pressing process are separated and enter a mother liquor thickener 11 and a washing liquor thickener 21, the washing water is in the washing liquor thickener 21, trace iron phosphate dihydrate particles suspended in the washing water are settled downwards under the action of a rake, so that washing water is divided into two parts of clarified liquid and thick slurry precipitate, the clarified liquid is filtered by a washing liquor filter press 22 and then enters a washing liquor clean liquid tank 23, and then enters a membrane thickener 24 for concentrating to 12%, and then is conveyed into a mother liquor clean liquid tank 13; a small amount of thick stock is discharged to a thick stock ground groove 3; the mother liquor is in the thick liquid ground tank 3, a small amount of ferric phosphate dihydrate particles suspended in the mother liquor subsides downwards under the action of a rake, so that the mother liquor is divided into two parts of clear liquor and thick slurry precipitate, the clear liquor is subjected to filter pressing by the mother liquor filter press 12 and then is discharged to the mother liquor clean liquid tank 13, the thick slurry is discharged to the thick slurry ground tank 3 and is sent to the production filter pressing equipment 4 together with the thick slurry of washing water, the production filter pressing equipment 4 carries out filter pressing and washing on the iron phosphate feed liquor aged on production and the recycled thick slurry together, and the mother liquor and washing water in the washing process are treated and recycled.
The mother liquor was separated into a clear solution (10% concentration dilute phosphoric acid) and an underflow slurry (ferric phosphate dihydrate) by continuous operation of the mother liquor thickener 11, and the thickened underflow slurry was discharged from a liquid outlet at the bottom of the mother liquor thickener 11 into the thickener tank 3 by the action of a rake which was mounted in a stirring member in the thickener tank and operated at a slow speed (1/3 to 1/5 r/min).
In this embodiment, a first transfer pump 14 is connected between the mother liquor thickener 11 and the mother liquor filter press 12. Specifically, the supernatant area in the mother liquor thickener 11 is communicated with the mother liquor filter press 12 via a first transfer pump 14.
Specifically, the upper layer in the mother liquor thickener 11 produces cleaner clear liquid, mainly 10% dilute phosphoric acid, which is pumped out of the upper layer in the mother liquor thickener 11 by a first delivery pump 14, and is delivered into a mother liquor filter press 12, and the clear liquid after filter pressing is delivered into a mother liquor clear liquid tank 13.
In this specific embodiment, a second transfer pump 25 is connected between the washing liquid thickener 21 and the washing liquid filter press 22, and a third transfer pump 26 is connected between the washing liquid tank 23 and the membrane thickener 24. Specifically, the supernatant zone in the wash thickener 21 communicates with the wash filter press 22 via a second transfer pump 25.
In this specific embodiment, a fourth transfer pump 5 is connected between the thick stock land tank 3 and the production filter pressing device 4, and the mother liquor clean liquid tank 13 is communicated with the acid preparing device 7 via a fifth transfer pump 6.
Specifically, in the continuous operation of the washing-liquid thickener 21, the washing-liquid is separated into a clear liquid (dilute phosphoric acid with a concentration of 6%) and an underflow slurry (ferric phosphate dihydrate), and the thickened underflow slurry is discharged from a bottom liquid outlet of the washing-liquid thickener 21 into a slurry tank 3 by the action of a rake which is installed in a stirring member in the slurry tank and is operated at a slow speed (1/2 to 1/3 r/min), and the slurry in the slurry tank is pumped to a filter pressing device by a fourth conveying pump 5.
Wherein, the upper layer in the washing liquid thickener 21 produces cleaner clear liquid, mainly 6% dilute phosphoric acid, and the clear liquid is pumped from the upper layer in the washing liquid thickener 21 through a second delivery pump 25 and sent to a washing liquid filter press 22 for filter pressing.
Specifically, the washing water in the mother liquor solution tank 13 is pumped into the membrane thickener 24 by the third transfer pump 26 to be concentrated to a concentration of 12%, and then returned to the mother liquor solution tank 13.
In this embodiment, the first transfer pump 14, the second transfer pump 25, the third transfer pump 26, the fourth transfer pump 5, and the fifth transfer pump 6 are all FS/FSZ102.
In this embodiment, a concentration detector is disposed in the membrane thickener 24. The volume of the thick paste trough 3 is 10m 3, and the volumes of the washing liquid clear liquid tank 23 and the mother liquid clear liquid tank 13 are 750m 3.
In this particular embodiment, the model of both the mother liquor filter press 12 and the wash filter press 22 are XAZGS200,200/1250-UF.
The beneficial effects are that:
Compared with the prior art, the iron phosphate mother liquor treatment device comprises a mother liquor treatment unit, a washing water treatment unit, a thick paste trough and production filter pressing equipment, wherein the mother liquor treatment unit comprises a mother liquor thickener, a mother liquor filter press and a mother liquor clean liquid tank which are sequentially communicated; the washing water treatment unit comprises a washing liquid thickener, a washing liquid filter press, a washing liquid clear liquid tank and a membrane thickener which are sequentially connected, wherein the membrane thickener is also communicated with the mother liquid clear liquid tank; the thick pulp ground tanks are communicated with bottom liquid outlets of the mother liquor thickener and the washing liquor thickener; the production filter pressing equipment is communicated with the thick slurry ground tank; through washing liquid thickener and washing liquid pressure filter combining together carry out hierarchical processing to the washing liquid, the protection film concentrator filters the washing liquid and does not receive other solid particle's influence, can realize the continuous stable work of film concentrator, simultaneously, in the clear solution after the film concentrator concentration was carried to the mother liquor clear solution jar for dilute phosphoric acid can cyclic utilization, has reduced the work load of film concentrator, and whole production running cost is low, iron and phosphorus resource recovery rate is high and the treatment effect is better.
The above-described embodiments of the present utility model do not limit the scope of the present utility model. Any other corresponding changes and modifications made in accordance with the technical idea of the present utility model shall be included in the scope of the claims of the present utility model.
Claims (10)
1. An iron phosphate mother liquor treatment device, comprising:
The mother liquor treatment unit comprises a mother liquor thickener, a mother liquor filter press and a mother liquor clear solution tank which are communicated in sequence;
The washing water treatment unit comprises a washing liquid thickener, a washing liquid filter press, a washing liquid clean liquid tank and a membrane thickener which are sequentially connected, wherein the membrane thickener is also communicated with the mother liquid clean liquid tank;
The thick pulp ground tanks are communicated with the bottom liquid outlets of the mother liquor thickener and the washing liquor thickener; and
And the production filter pressing equipment is communicated with the thick slurry ground tank.
2. The ferric phosphate mother liquor treatment apparatus of claim 1, wherein a first transfer pump is connected between the mother liquor thickener and the mother liquor filter press.
3. The ferric phosphate mother liquor treatment device according to claim 2, wherein a second transfer pump is connected between the washing liquor thickener and the washing liquor filter press, and a third transfer pump is connected between the washing liquor clear solution tank and the membrane thickener.
4. A ferric phosphate mother liquor treatment apparatus according to claim 3, wherein a fourth transfer pump is connected between the slurry tank and the production press.
5. The ferric phosphate mother liquor treatment apparatus of claim 4, wherein said mother liquor supernatant tank is in communication with an acid distribution device via a fifth transfer pump.
6. The ferric phosphate mother liquor treatment apparatus of claim 5, wherein the first, second, third, fourth and fifth transfer pumps are all FS/FSZ102 in type.
7. The ferric phosphate mother liquor treatment apparatus according to claim 1, wherein the inside of the mother liquor thickener and the inside of the washing liquor thickener are both provided with stirring members.
8. The ferric phosphate mother liquor treatment apparatus according to claim 1, wherein a concentration detector is provided in the membrane thickener.
9. The ferric phosphate mother liquor treatment apparatus according to claim 1, wherein the volume of the concentrated slurry tank is 10m 3, and the volumes of the washing solution tank and the mother liquor tank are 750m 3.
10. An iron phosphate mother liquor treatment plant according to claim 1, wherein the mother liquor filter press and the wash liquor filter press are each of the type XAZGS200,200/1250-UF.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221319335U true CN221319335U (en) | 2024-07-12 |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101857216B (en) | Method for extracting and purifying wet-process phosphorous acid to produce industrial-grade phosphorous acid | |
| CN103613083B (en) | A kind of phosphoric acid by wet process and high-purity phosphoric acid are in conjunction with the method for manufacture level monoammonium phosphate | |
| CN113307243B (en) | Method for preparing iron phosphate by recycling mother liquor | |
| CN111333047A (en) | Method for synthesizing high-purity iron phosphate by using ferrous sulfate as byproduct of titanium dioxide | |
| CN105036101A (en) | Semi-hydrated-two-hydrated wet process phosphoric acid production process and system thereof | |
| CN113336212B (en) | Method for preparing iron phosphate by recycling mother liquor | |
| CN104495927B (en) | Prepare the method for Vanadium Pentoxide in FLAKES | |
| CN103466579B (en) | The method of the complete water-soluble monoammonium phosphate of Wet-process Phosphoric Acid Production | |
| CN106997973A (en) | The phosphatic method of ferric phosphate and lithium is prepared in a kind of anode material from waste lithium iron phosphate | |
| CN102730657B (en) | Method for defluorination, purification and separation of wet-process phosphoric acid | |
| CN106395775A (en) | Method for filtering phosphoric acid extraction slurry | |
| CN110590034A (en) | Process treatment method for lithium iron wastewater of lithium battery anode material | |
| CN103482667B (en) | Quick and efficient purifying method for phosphogypsum | |
| CN221319335U (en) | Ferric phosphate mother liquor processing apparatus | |
| CN107473775A (en) | Reclaim phosphorus and the molten fertile method of fluorine co-production low fluorine water in Phosphoric Acid Concentration slag acid | |
| CN204873846U (en) | Half water - no. 2 water law phosphoric acid by wet process production system | |
| CN102643710B (en) | Silicon wafer-cutting waste slurry recovery method | |
| CN105439646A (en) | Method for producing phosphorus magnesia fertilizer by using wet phosphoric acid residues | |
| CN205170393U (en) | A device for phosphoric acid by wet process preparation potassium dihydrogen phosphate | |
| CN102515134A (en) | Production technology of food-grade phosphoric acid with hydrochloric acid method | |
| CN104150519B (en) | A kind of method utilizing sodium sulfate waste liquid to prepare barium sulfate and sodium carbonate | |
| CN103466871B (en) | Treatment method and recycling system for industrial wastewater of polycrystalline silicon batteries | |
| CN213265743U (en) | Magnesium removing device capable of preparing high-concentration and low-magnesium-content phosphoric acid | |
| CN212864145U (en) | Phosphoric acid dearsenification system | |
| CN202181214U (en) | Device for using tail gas washing objects for ammonium phosphate production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |