CN113120931A - Nuclear pure grade Li2CO3Chemical conversion device - Google Patents
Nuclear pure grade Li2CO3Chemical conversion device Download PDFInfo
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- CN113120931A CN113120931A CN201911390289.1A CN201911390289A CN113120931A CN 113120931 A CN113120931 A CN 113120931A CN 201911390289 A CN201911390289 A CN 201911390289A CN 113120931 A CN113120931 A CN 113120931A
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- stainless steel
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 32
- 229910052808 lithium carbonate Inorganic materials 0.000 claims abstract description 23
- 239000000126 substance Substances 0.000 claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 238000000746 purification Methods 0.000 claims abstract description 19
- 238000003763 carbonization Methods 0.000 claims abstract description 16
- 238000000227 grinding Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000010935 stainless steel Substances 0.000 claims description 33
- 229910001220 stainless steel Inorganic materials 0.000 claims description 33
- 238000002425 crystallisation Methods 0.000 claims description 12
- 230000008025 crystallization Effects 0.000 claims description 12
- 239000012452 mother liquor Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 11
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 abstract description 10
- 239000008188 pellet Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 7
- 239000000919 ceramic Substances 0.000 abstract description 4
- 239000003758 nuclear fuel Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052770 Uranium Inorganic materials 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 2
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910010092 LiAlO2 Inorganic materials 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D15/00—Lithium compounds
- C01D15/08—Carbonates; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/42—Selection of substances for use as reactor fuel
- G21C3/58—Solid reactor fuel Pellets made of fissile material
- G21C3/62—Ceramic fuel
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Filtering Materials (AREA)
Abstract
The invention belongs to the technical field of ceramic pellet preparation, and particularly relates to nuclear pure grade Li2CO3Chemical conversion device. The device consists of four parts, including a powder purification system, a carbonization and filtration system, an ultra-fine grinding system and an automatic control system. The chemical conversion device is mainly applied to preparation of nuclear pure grade Li2CO3 powder, Li2CO3 powder prepared by single conversion of the device can reach (1-10) kg, small-scale engineering application can be realized, and a raw material basis is provided for engineering of special material preparation.
Description
Technical Field
The invention belongs to the technical field of ceramic pellet preparation, and particularly relates to nuclear pure grade Li2CO3Chemical conversion device.
Background
The nuclear fuel pellets are the core of the nuclear fuel element and are made of fissile material 235U and 239 Pu. Nuclear fuels can be classified into metal type, ceramic type and dispersion type, and clad materials such as aluminum alloy, magnesium alloy, zirconium alloy and stainless steel are coated outside. The surface of the nuclear fuel pellets must be mechanically polished to ensure a fit with the cladding material. In order to adapt to the irradiation swelling of the nuclear fuel pellets, the upper and lower surfaces of the pellets are pressed into a concave dish shape. The cladding material is selected to be compatible with the nuclear fuel pellets.
Nuclear reactors are classified into natural uranium stacks, enriched uranium stacks, thorium stacks according to fuel types; dividing the reactor into a fast neutron reactor and a thermal neutron reactor according to neutron energy; according to the coolant (heat carrier) material, the reactor is divided into a water-cooled reactor, a gas-cooled reactor, an organic liquid-cooled reactor and a liquid metal-cooled reactor; according to the moderator, the reactor is divided into a graphite reactor, a water-cooled reactor, an organic reactor, a molten salt reactor and a sodium-cooled reactor; dividing the reactor into a high-flux reactor and a general energy reactor according to neutron flux; dividing the reactor into a boiling reactor, a non-boiling reactor and a pressurized water reactor according to the thermal state; a pulsed stack and a steady-state stack, etc. according to the operation mode.
LiAlO2The ceramic pellet preparation technology has less published data at present, and a common related device is a laboratory-grade device which uses tools such as a beaker and the like to carry out reaction filtration, and the yield does not exceed 1 kg.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a corePure grade Li2CO3The chemical conversion device is mainly applied to preparation of nuclear pure grade Li2CO3 powder, Li2CO3 powder prepared by single conversion of the device can reach (1-10) kg, small-scale engineering application can be realized, and a raw material basis is provided for engineering of special material preparation.
The technical scheme of the invention is as follows:
nuclear pure grade Li2CO3The chemical conversion device consists of four parts, including a powder purifying system, a carbonizing and filtering system, an ultrafine grinding system and an automatic control system.
Nuclear pure grade Li2CO3The chemical conversion device, the powder purification system, the carbonization filtration system and the ultrafine grinding system are mutually independent.
Nuclear pure grade Li2CO3The chemical conversion device, the automatic control system, the powder purification system and the carbonization filtration system are respectively in circuit connection.
Nuclear pure grade Li2CO3The chemical conversion device and the powder purification system comprise a crystallization tank connected with the front end of a fine filter through a stainless steel pipe, the rear end of the fine filter is connected with the crystallization tank through a stainless steel pipe, the crystallization tank is connected with the inlet of the fine filter through a stainless steel pipe, and the outlet of a centrifugal separator is connected with a residual liquid tank through a stainless steel pipe.
Nuclear pure grade Li2CO3Chemical industry conversion equipment, carbonization filtration system include that the mother liquor jar passes through nonrust steel pipe connection carbonizer, and the carbonizer passes through nonrust steel pipe connection pressure filter entry, and the mother liquor jar is connected through nonrust steel pipe in the pressure filter export.
Nuclear pure grade Li2CO3Chemical conversion device, device possess raw materials mother liquor circulation clean utilization.
Nuclear pure grade Li2CO3Chemical industry conversion equipment, the device possesses automated control auxiliary function.
The invention has the beneficial effects that:
the equipment can realize the preparation of the chemical conversion method of the nuclear pure grade Li2CO 3. The deposition process is completed through chemical reaction and the characteristic that Li2CO3 is slightly soluble in water, thereby achieving the aim of preparing powder.
The device is provided with a powder purification system and an ultrafine grinding system, can realize the control of the purity and the granularity of the powder, and realizes the preparation of the prepared nuclear pure grade Li2CO3 powder, and all indexes of the Li2CO3 powder prepared by the device can reach the relevant industrial standards, and the total purity is more than 99.99 percent.
Drawings
FIG. 1 is a schematic diagram of a powder purification system of the present invention;
FIG. 2 is a schematic view of a carbonation filtration system of the present invention.
In the figure: 5. a crystallization tank; 6. a fine filter; 7. a centrifugal separator; 8. a residual liquid tank; 9. a stainless steel tube; 10. A stainless steel tube; 11. a stainless steel tube; 12. a stainless steel pipe; 13. a mother liquor tank; 14. a filter press; 15. A carbonizer; 16. a stainless steel pipe; 17. a stainless steel tube; 18. stainless steel tubes.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown, a nuclear pure grade Li2CO3Chemical industry conversion equipment, the device comprises four parts: a powder purification system, a carbonization and filtration system, a superfine grinding system and an automatic control system.
The powder purification system, the carbonization filtration system and the ultrafine grinding system are mutually independent, and the automatic control system is in circuit connection with the powder purification system and the carbonization filtration system respectively.
The specific composition of the powder purification system is shown in figure 1, a crystallization tank 5 is connected with the front end of a fine filter 6 through a stainless steel pipe 9, the rear end of the fine filter 6 is connected with the crystallization tank 5 through a stainless steel pipe 10, the crystallization tank 5 is connected with the inlet of a fine filter 7 through a stainless steel pipe 11, and the outlet of a centrifugal separator 7 is connected with a residual liquid tank 8 through a stainless steel pipe 12.
The carbonization filtration system has a specific composition as shown in FIG. 2, wherein a mother liquor tank 13 is connected with a carbonizer 15 through a stainless steel pipe 18, the carbonizer is connected with an inlet of a filter press 14 through a stainless steel pipe 17, and an outlet of the filter press 14 is connected with the mother liquor tank 13 through a stainless steel pipe 16.
The equipment can realize the preparation of the chemical conversion method of the nuclear pure grade Li2CO 3. The deposition process is completed through chemical reaction and the characteristic that Li2CO3 is slightly soluble in water, thereby achieving the aim of preparing powder. The device is provided with a powder purification system and an ultrafine grinding system, can realize the control of the purity and the granularity of the powder, and realizes the preparation of the prepared nuclear pure grade Li2CO3 powder, and all indexes of the Li2CO3 powder prepared by the device can reach the relevant industrial standards, and the total purity is more than 99.99 percent.
The device has the auxiliary functions of raw material mother liquor recycling, automatic control and the like.
Nuclear pure grade Li2CO3Chemical industry conversion equipment, the device comprises four parts: a powder purification system, a carbonization and filtration system, a superfine grinding system and an automatic control system.
The powder purification system, the carbonization filtration system and the ultrafine grinding system are mutually independent.
The automatic control system is in circuit connection with the powder purification system and the carbonization filtration system respectively.
The powder purification system comprises a crystallization tank 5 connected with the front end of a fine filter 6 through a stainless steel pipe 9, and the rear end of the fine filter 6 connected with the crystallization tank 5 through a stainless steel pipe 10.
The crystallizing tank 5 is connected with the inlet of the fine filter 7 through a stainless steel pipe 11, and the outlet of the centrifugal separator 7 is connected with the residual liquid tank 8 through a stainless steel pipe 12.
The carbonization filtration system comprises a mother liquor tank 13 connected with a carbonizer 15 through a stainless steel pipe 18, the carbonizer is connected with an inlet of a pressure filter 14 through a stainless steel pipe 17, and an outlet of the pressure filter 14 is connected with the mother liquor tank 13 through a stainless steel pipe 16.
Finally, it should be noted that: the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention.
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 various changes may be made and equivalents may be substituted for elements thereof.
Any modification, equivalent replacement, improvement, simplification and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (7)
1. Nuclear pure grade Li2CO3Chemical industry conversion equipment, its characterized in that: the device consists of four parts, including a powder purification system, a carbonization and filtration system, an ultra-fine grinding system and an automatic control system.
2. A nuclear pure grade Li according to claim 12CO3Chemical industry conversion equipment, its characterized in that: the powder purification system, the carbonization filtration system and the ultrafine grinding system are mutually independent.
3. A nuclear pure grade Li according to claim 12CO3Chemical industry conversion equipment, its characterized in that: the automatic control system is in circuit connection with the powder purification system and the carbonization filtration system respectively.
4. A nuclear pure grade Li according to claim 12CO3Chemical industry conversion equipment, its characterized in that: the powder purification system comprises a crystallization tank connected with the front end of a fine filter through a stainless steel pipe, the rear end of the fine filter is connected with the crystallization tank through a stainless steel pipe, the crystallization tank is connected with the inlet of the fine filter through a stainless steel pipe, and the outlet of a centrifugal separator is connected with a residual liquid tank through a stainless steel pipe.
5. A nuclear pure grade Li according to claim 12CO3Chemical industry conversion equipment, its characterized in that: the carbonization and filtration system comprises a mother liquor tank connected with a carbonizer through a stainless steel pipe, the carbonizer is connected with a pressure filter inlet through a stainless steel pipe, and a pressure filter outlet is connected with the mother liquor tank through a stainless steel pipe.
6. A nuclear pure grade Li according to claim 12CO3Chemical industry conversion equipment, its characterized in that: the device has the advantage of recycling and cleaning raw material mother liquor.
7. A nuclear pure grade Li according to claim 12CO3Chemical industry conversion equipment, its characterized in that: the device has an automatic control auxiliary function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390289.1A CN113120931A (en) | 2019-12-30 | 2019-12-30 | Nuclear pure grade Li2CO3Chemical conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911390289.1A CN113120931A (en) | 2019-12-30 | 2019-12-30 | Nuclear pure grade Li2CO3Chemical conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113120931A true CN113120931A (en) | 2021-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911390289.1A Pending CN113120931A (en) | 2019-12-30 | 2019-12-30 | Nuclear pure grade Li2CO3Chemical conversion device |
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| Country | Link |
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| CN (1) | CN113120931A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481125A (en) * | 2009-02-13 | 2009-07-15 | 海门容汇通用锂业有限公司 | Method for cyclically using lithium deposition for preparing sodium carbonate solution to produce lithium carbonate |
| CN105347364A (en) * | 2015-10-30 | 2016-02-24 | 华陆工程科技有限责任公司 | Method for closed-loop recycling of lithium precipitation mother liquor in lithium carbonate production |
| CN105399115A (en) * | 2015-12-31 | 2016-03-16 | 中国科学院青海盐湖研究所 | Preparation method for high-purity submicron lithium carbonate |
| CN107055577A (en) * | 2017-04-13 | 2017-08-18 | 盛亮 | A kind of method and device that superpurity lithium carbonate is extracted from industrial level lithium carbonate |
| CN109650414A (en) * | 2019-01-18 | 2019-04-19 | 成都开飞高能化学工业有限公司 | High impurity lithium source prepares LITHIUM BATTERY, the method and system of high-purity grade of lithium hydroxide and lithium carbonate |
-
2019
- 2019-12-30 CN CN201911390289.1A patent/CN113120931A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481125A (en) * | 2009-02-13 | 2009-07-15 | 海门容汇通用锂业有限公司 | Method for cyclically using lithium deposition for preparing sodium carbonate solution to produce lithium carbonate |
| CN105347364A (en) * | 2015-10-30 | 2016-02-24 | 华陆工程科技有限责任公司 | Method for closed-loop recycling of lithium precipitation mother liquor in lithium carbonate production |
| CN105399115A (en) * | 2015-12-31 | 2016-03-16 | 中国科学院青海盐湖研究所 | Preparation method for high-purity submicron lithium carbonate |
| CN107055577A (en) * | 2017-04-13 | 2017-08-18 | 盛亮 | A kind of method and device that superpurity lithium carbonate is extracted from industrial level lithium carbonate |
| CN109650414A (en) * | 2019-01-18 | 2019-04-19 | 成都开飞高能化学工业有限公司 | High impurity lithium source prepares LITHIUM BATTERY, the method and system of high-purity grade of lithium hydroxide and lithium carbonate |
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Application publication date: 20210716 |