CN206854659U - The particle growth device of continuous volume production ultrafine nanometer metallic - Google Patents
The particle growth device of continuous volume production ultrafine nanometer metallic Download PDFInfo
- Publication number
- CN206854659U CN206854659U CN201621306206.8U CN201621306206U CN206854659U CN 206854659 U CN206854659 U CN 206854659U CN 201621306206 U CN201621306206 U CN 201621306206U CN 206854659 U CN206854659 U CN 206854659U
- Authority
- CN
- China
- Prior art keywords
- growth device
- particle growth
- metallic
- internal diameter
- cooling
- 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
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The utility model belongs to nano-sized metal particles production technical field, it is related to the particle growth device of continuous volume production ultrafine nanometer metallic, including the feed pipe, discharge nozzle and cooling circulation pipe connected with the inner chamber of particle growth device, the ratio between the internal diameter of feed pipe and the internal diameter of particle growth device are 1:2~60；The internal diameter of particle growth device and the length ratio of feed pipe are 1:0.05~5, the cooling circulation pipe for stretching into intracavitary in particle growth device is communicated with the cooling tube of more than one, it is spaced apart on cooling tube and is provided with cooling gas spout, to make the cooling gas through the ejection of supercooling gas spout after caused high-temperature metal steam enters particle growth device in metallic high temperature evaporator or crucible be quickly cooled to 200 DEG C~less than 60 DEG C, metallic can not continue to collide the bigger metallic of adhesion generation, and the metallic diameter of generation is less than or equal to 250nm.
Description
Technical field
The utility model belongs to nano-sized metal particles production technical field, refers in particular to a kind of continuous volume production ultrafine nanometer gold
Belong to the particle growth device of particle.
Background technology
Lithium ion battery is because of its energy density height, power density height, good cycle, environment-friendly, and various structures
The excellent properties such as change, are widely used not in terms of the growth requirement of lithium-ion-power cell, it is desirable to which negative material has
The features such as high power capacity, fast charging and discharging, the theoretical capacity of the commercialized graphite cathode material in existing market are 372mah/g, mesh
Before, commercialized graphite cathode product up to 350mah/g or so, substantially can not room for promotion, silicon bears as lithium ion battery
Pole material, theoretical capacity are graphite cathode material theoretical capacities more than 10 times up to 4200mah/g, and the resource of silicon and its rich
Richness, enriched in recent years as the research and development of lithium ion battery negative material, but common submicron order silicon grain actually should
Huge volumetric expansion and contraction (300%~400%) can be produced with middle, larger internal stress is produced inside negative material,
Cause motor material to crush, so as to cause cycle performance slump of disastrous proportions, have a strong impact on its development, scientific experiment shows, be significantly
Reduce usage time and expansion and contraction of the silicon in lithium ion battery negative material, it is necessary to the road of the nanosizing of silicon materials is walked,
So as to which the volumetric expansion agent contraction for alleviating silicon be greatly reduced；At present, global below 100nm nano-silicon preparation method can not be significantly
Improve, the manufacturing cost of below 100nm nano-silicon is expensive, seriously constrains silicon materials and is born applied to commercial Li-ion battery
In the material of pole.
The method for producing elemental metals or more matter metal nano materials is a lot, such as United States Patent (USP) US4661335A, China
Patent CN100431954C, anodizing CN1333108C, CN105836748A, Ningbo branch of the Chinese weapons academy of sciences
CN105271237A and CN102910630B, Zhejiang University CN101559946B and CN102951643B etc., Hen Duofang
Face all have received a certain amount production limitation or safety in production in terms of restriction, particularly patent CN102951643B is in actual production
During be unable to reach below 100nm truly nano silicon material at all, in the world generally with below 100nm grain
Stated in sub- material abbreviation nano material, such as the Patent right requirement 4：" particle controller is to gather cold pipe, described to gather cold pipe
Tubular construction include five layers, graphite-pipe, carbon felt pipe, carbon felt pipe, stainless steel tube, stainless steel tube are followed successively by from inside to outside, wherein two
Cold water circulating system is provided between layer stainless steel tube ", interior three layers are graphite-pipe, carbon felt pipe, carbon felt pipe composition, and general knowledge is both known about
This trilaminate material is a kind of thermostable material, and high temperature resistant reaches as high as 1800 DEG C：First, prove that the gas silicon controls in particle
Extreme temperatures in device, just need as exotic material；Second, CN102951643B in actual production process, gathers cold pipe
(particle controller) one end connection high-temperature evaporator, other end connection collector, because the boiling point of silicon is 2900 DEG C, after silicon vaporization
Outlet temperature necessarily be 2900 DEG C or so, so high temperature it is so-called gather cold pipe in pass through the temperature after circulating water
Degree will not reduce too much, cause silicon particle easily Fast Collision in poly- cold pipe to grow into bulky grain silicon particle, can not give birth at all
Output 150nm~below 10nm silicon nano material, 1~table of table 3 according to the embodiment of the B patents of CN 102951643 show, its
Silicon grain particle diameter distribution D50 is actually unable to reach 150nm~below 10nm silicon at all in 500~more than 2700nm, its D50
Particle size；Third, if silicon particle is controlled gathering the reduction of temperature when being flowed through in cold pipe to control silicon particle by controlling flow
Gathering the speed of growth in cold pipe, then its production efficiency is very low, and the production cost for further resulting in nano silicone particle is high.
The content of the invention
The purpose of this utility model is to provide a kind of particle growth device of continuous volume production ultrafine nanometer metallic.
What the purpose of this utility model was realized in：
The particle growth device of continuous volume production ultrafine nanometer metallic, including the inner chamber with particle growth device
Feed pipe, discharge nozzle and the cooling circulation pipe of connection, the ratio between the internal diameter of feed pipe and the internal diameter of particle growth device are 1:2~
60；The internal diameter of particle growth device and the length ratio of feed pipe are 1:0.05~5, stretch into intracavitary in particle growth device
Cooling circulation pipe be communicated with the cooling tube of more than one, be spaced apart on cooling tube and be provided with cooling gas spout, described cooling
Gas spout has 5~500, and described metallic is also referred to as metal-powder.
The ratio between the internal diameter of above-mentioned feed pipe and the internal diameter of particle growth device are 1:4~10；Particle growth device
The length ratio of internal diameter and feed pipe is 1:0.05~2.
The ratio between the internal diameter of above-mentioned feed pipe and the internal diameter of particle growth device are 1:6~8；Particle growth device it is interior
The length ratio of footpath and feed pipe is 1:0.05~1.
The cooling gas spout opened up on above-mentioned cooling tube has 20~200.
The cooling gas spout opened up on above-mentioned cooling tube has 35~100.
The cooling gas being passed through in above-mentioned cooling circulation pipe is nitrogen or argon gas or neon or helium；Or described cooling
The cooling gas being passed through in circulation pipe is mixed gas, and the inert gas in mixed gas accounts for more than the 50% of mixed gas.
The housing of above-mentioned particle growth device is made up of double-layer plate, connects the cooling water circulation conduit of water circulating pump
Cavity of the intake-outlet between two-layered steel plates connect；Cooling water circulation is passed through in particle growth device crustless sandwich
Afterwards, first, the temperature of particle growth device inner chamber can be reduced, it is easy to control the growth of metallic；Two can be prevented from shell
Scald of the high temperature of external surface to operating personnel.
Above-mentioned particle growth device can make caused high temperature aerial fog type clipped wire in metallic high temperature evaporator or crucible
Son rapidly cools down into the cooling gas through the ejection of supercooling gas spout behind the inner chamber of particle growth device makes nano-particle
The outlet temperature of grower is 200 DEG C~less than 60 DEG C, and metallic can not continue collision and generate bigger metallic, raw
Into metallic diameter be less than or equal to 250nm.
A diameter of 20nm~the 100nm of metallic of above-mentioned generation.
A diameter of 20nm~the 60nm of metallic of above-mentioned generation.
The utility model is prominent and beneficial compared with prior art to be had the technical effect that：
1st, the utility model is due to have found the ratio between the internal diameter of feed pipe and the internal diameter of particle growth device and nanometer
The scope of the internal diameter of particle growth device and the length ratio of feed pipe, and be provided with the interior intracavitary of particle growth device
The cooling tube of cooling gas spout, during nano-particle is produced, due to continuous by the cooling gas spout of cooling tube
To particle growth device inner chamber spray low temperature nitrogen or argon gas or neon or helium gas cooling gas, can to enter receive
The high-temperature metal steam of rice corpuscles grower is quickly cooled down, because the internal diameter of the particle growth device of control is larger, because
This, in the interior intracavitary for the particle growth device that internal diameter is expanded rapidly, the flow velocity of high-temperature metal steam slows down rapidly, metallic vapour
Also allow for the intracavitary in particle growth device and carry out heat exchange with ultralow temperature cooling gas so that particle growth device inner chamber
The temperature of interior high-temperature metal steam is rapidly decreased to 200 DEG C~less than 60 DEG C, and metallic collides in any case at this temperature
Also will not continue to grow the metallic with adhesion into bulky grain, metallic is only capable of producing 250nm~20nm at this temperature
Following silicon nano material.
2nd, the utility model is due to passing through cooling of the particle growth device to high-temperature metal steam so that into collector
The temperature of interior metallic particles is relatively low, at 150 DEG C~less than 60 DEG C, the metallic particles not only not regrowth in collector, adds
Collector in also there is cooling system to continue further to cool, be easy to metallic particles collection and externally discharge.
3rd, the utility model is realized and can not only kept the safety in production but also can (several months) continuous below volume production 100nm for a long time
Nano-sized metal particles, if production product be silicon metal particle if, can effectively solve the negative pole of lithium ion battery
Nano-silicon particle material, it is of course also possible to Cu~Cr~Si ternarys negative material or Cu~Ni~Si ternary negative materials are produced,
So that the mass production that elemental metals or more matter metal nano levels plagiarize metallic is achieved, due to the factor of continuous volume production,
So that the speed of production of product is fast, production cost is low, the nano-particle suitable for making continuous volume production ultrafine nanometer metallic
Grower is used.
Brief description of the drawings
Fig. 1 is the structural representation that the utility model is applied in continuous volume production ultrafine nanometer metallic production equipment
Figure.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the schematic diagram of collector of the present utility model.
Embodiment
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings, referring to Fig. 1-Fig. 3：
The particle growth device 15 of continuous volume production ultrafine nanometer metallic, including with particle growth device 15
Feed pipe 14, discharge nozzle 16 and the cooling circulation pipe 221 of inner chamber connection, internal diameter C and the particle growth device 15 of feed pipe 14
The ratio between internal diameter B be C:B=1:2~60；The ratio between the internal diameter B of particle growth device 15 and the length A of feed pipe 14 are B:A=
1:0.05~5, the cooling circulation pipe 221 stretched into particle growth device inner chamber 152 is communicated with the cooling tube of more than one
158, it is spaced apart on cooling tube 158 and is provided with cooling gas spout 157, described cooling gas spout 157 offers 5~500,
To make caused high temperature aerial fog type metallic in metallic high temperature evaporator or crucible 27 enter particle growth device 15
The cooling gas sprayed behind inner chamber 152 through supercooling gas spout 157 is quickly cooled to 150 DEG C~less than 80 DEG C, clipped wire
Son can not continue collision and generate bigger metallic, and the metallic diameter of generation is less than or equal to 150nm, described metal
Particle is also referred to as metal-powder；The length of described feed pipe refers to metallic high temperature evaporator inner wall and the inwall of particle growth device 15
Between length or crucible cover inwall and the inwall of particle growth device 15 between length.
The ratio between the internal diameter C of above-mentioned feed pipe 14 and the internal diameter B of particle growth device 15 C:B=1:4~10；Nano-particle
The ratio between the internal diameter B of grower 15 and the length A of feed pipe 14 B:A=1:0.05~2.
The ratio between the internal diameter C of above-mentioned feed pipe 14 and the internal diameter B of particle growth device 15 C:B=1:6~8；Nano-particle
The ratio between the internal diameter B of grower 15 and the length A of feed pipe 14 B:A=1:0.05~1.
The cooling gas spout 157 opened up on above-mentioned cooling tube 158 has 20~200.
The cooling gas spout 157 opened up on above-mentioned cooling tube 158 has 35~100.
The cooling gas being passed through in above-mentioned cooling circulation pipe 221 is nitrogen or argon gas or neon or helium；It is or described
The cooling gas that is passed through is mixed gas in cooling circulation pipe, the inert gas in mixed gas account for the 50% of mixed gas with
On.
The housing 151 of above-mentioned particle growth device 15 is made up of double-layer plate, and the cooling water for connecting water circulating pump follows
Ring conduit is connected by the cavity between intake-outlet 153 and two-layered steel plates；It is passed through in particle growth device crustless sandwich
After cooling water circulation, first, the temperature of particle growth device inner chamber 152 can be reduced, it is easy to control the growth of metallic；
Two can be prevented from scald of the high temperature to operating personnel of housing outer surface, and cooling pond or cool is communicated with cooling water circulation conduit
Water tank.
Above-mentioned particle growth device 15 can make caused high temperature aerial fog type gold in metallic high temperature evaporator or crucible 27
It is rapidly cold into the cooling gas through the ejection of supercooling gas spout 257 behind the inner chamber 152 of particle growth device 15 to belong to particle
But the outlet temperature for making particle growth device is 200 DEG C~less than 60 DEG C, and it is bigger that metallic can not continue collision generation
Metallic, the metallic diameter of generation is less than or equal to 250nm.
A diameter of 20nm~the 100nm of metallic of above-mentioned generation.
A diameter of 20nm~the 60nm of metallic of above-mentioned generation.
Use of the present utility model：Feed pipe 14 of the present utility model is connected with the discharging opening of the inner chamber of crucible 27, discharged
Pipe 16 connects with the charging aperture of collector 17, cools down circulation pipe 221 connects with the cooling circulating line 22 after heat exchanger 20,
By be uninterruptedly fed valve 25 and its conduit 26 by the metallic particles of 0.1-50mm sizes of storage in storage vat 10 (including
Metallic silicon) interval is sent in crucible 27, start vavuum pump 18, by crucible interior 23, collector 17 and cooling circulating line 22
Inside it is evacuated to after certain vacuum and closes vavuum pump 18, starts heat exchanger 20, body of heater 24, on particle growth device 15
Cooling gas and cooling water circulating device, be at any time body of heater 24, crucible lid 13, feed pipe 14, discharge nozzle 16, nano-particle life
Long device 15 cools, by plasma-arc cabinet 11 control plasma torch 12 work, plasma torch 12 by shower nozzle to
Injection high temperature plasma gas in crucible interior 23, by the metallic particles vaporization in crucible 27 into metallic vapour, meanwhile, open
Dynamic air exhauster 21 and heat exchanger 20, the insulation material that the interior cryogenic inert gas cooled down of cooling circulating line 22 passes through body of heater 24
28 and crucible lid 13 inlet channel be sent into crucible interior 23 top it is cold to the metal gas of shower nozzle and crucible interior top
But cool, open the magnetic valve of circulation, air exhauster simultaneously extracts metallic vapour from crucible interior 23 out to be entered through feed pipe 14
Particle growth device 15, sprayed by the cooling gas spout 157 of the cooling tube 158 of intracavitary in particle growth device 15
The rapidly cooling of inert gas, the outlet temperature for keeping particle growth device are 200 DEG C~60 DEG C, and metallic grows simultaneously
Then adhesion enters the lower intracavitary of collector 17 with circulated air, regularly opened into below 250nm metallic not regrowth
The valve 31 of the upside of discharge nozzle 30 of collector 17, by controlling the opened closing of alternating of two valves 31, can be controlled not
Shut down discharge；Can also be metallic high temperature evaporator in described body of heater 24 and crucible 27；Continuous volume production ultrafine nanometer metal
The detailed operation principle of particle production equipment, the U of Chinese patent CN 204545422 are can refer to, are no longer described in detail herein.
Above-described embodiment is only preferred embodiment of the present utility model, not limits protection model of the present utility model according to this
Enclose, therefore：All equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by protection of the present utility model
Within the scope of.
Claims (10)
1. the particle growth device of continuous volume production ultrafine nanometer metallic, it is characterised in that：Including being given birth to nano-particle
Feed pipe, discharge nozzle and cooling circulation pipe, the internal diameter of feed pipe and the internal diameter of particle growth device that the inner chamber of long device connects
The ratio between be 1:2~60；The internal diameter of particle growth device and the length ratio of feed pipe are 1:0.05~5, stretch into nano-particle
The cooling circulation pipe of intracavitary is communicated with the cooling tube of more than one in grower, is spaced apart on cooling tube and is provided with cooling gas spray
Mouthful.
2. the particle growth device of continuous volume production ultrafine nanometer metallic according to claim 1, its feature exist
In：The ratio between the internal diameter of the feed pipe and the internal diameter of particle growth device are 1:4~10；The internal diameter of particle growth device with
The length ratio of feed pipe is 1:0.05~2.
3. the particle growth device of continuous volume production ultrafine nanometer metallic according to claim 1, its feature exist
In：The ratio between the internal diameter of the feed pipe and the internal diameter of particle growth device are 1:6~8；The internal diameter of particle growth device with
The length ratio of feed pipe is 1:0.05~1.
4. the particle growth device of continuous volume production ultrafine nanometer metallic according to claim 1, its feature exist
In：The cooling gas spout opened up on described cooling tube has 20~200.
5. the particle growth device of continuous volume production ultrafine nanometer metallic according to claim 1, its feature exist
In：The cooling gas spout opened up on described cooling tube has 35~100.
6. the particle growth device of continuous volume production ultrafine nanometer metallic according to claim 1, its feature exist
In：The cooling gas being passed through in described cooling tube is nitrogen or argon gas or neon or helium；Or it is passed through in described cooling tube
Cooling gas be mixed gas.
7. the particle growth device of continuous volume production ultrafine nanometer metallic according to claim 1, its feature exist
In：The housing of described particle growth device is made up of double-layer plate, and the cooling water circulation conduit for connecting water circulating pump enters
Cavity of the delivery port between two-layered steel plates connects.
8. the particle growth device of the continuous volume production ultrafine nanometer metallic according to any one of claim 1~7,
It is characterized in that：Described particle growth device can make caused high temperature aerial fog type metal in metallic high temperature evaporator or crucible
Particle enters behind the inner chamber of particle growth device the cooling gas sprayed through supercooling gas spout and rapidly cooled down, and keeps nanometer
The outlet temperature of particle growth device is 200 DEG C~60 DEG C, and metallic can not continue collision and generate bigger metallic, generation
Metallic diameter be less than or equal to 250nm.
9. the particle growth device of continuous volume production ultrafine nanometer metallic according to claim 8, its feature exist
In：A diameter of 20nm~the 100nm of metallic of the generation.
10. the particle growth device of continuous volume production ultrafine nanometer metallic according to claim 8, its feature exist
In：A diameter of 20nm~the 60nm of metallic of the generation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621306206.8U CN206854659U (en) | 2016-11-30 | 2016-11-30 | The particle growth device of continuous volume production ultrafine nanometer metallic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621306206.8U CN206854659U (en) | 2016-11-30 | 2016-11-30 | The particle growth device of continuous volume production ultrafine nanometer metallic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206854659U true CN206854659U (en) | 2018-01-09 |
Family
ID=60814557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621306206.8U Active CN206854659U (en) | 2016-11-30 | 2016-11-30 | The particle growth device of continuous volume production ultrafine nanometer metallic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206854659U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623957A (en) * | 2016-11-30 | 2017-05-10 | 江永斌 | Nano particle grower capable of realizing continuous mass production of superfine nanoscale metal particles |
| CN109513917A (en) * | 2018-12-18 | 2019-03-26 | 江苏博迁新材料股份有限公司 | A kind of decreasing carbon method of PVD production nickel powder |
| CN109648093A (en) * | 2018-12-18 | 2019-04-19 | 江苏博迁新材料股份有限公司 | A kind of superfine metal nickel powder surface treatment method |
| CN111261861A (en) * | 2020-01-22 | 2020-06-09 | 金雪莉 | Method for continuously preparing high-purity carbon-silicon nano material |
-
2016
- 2016-11-30 CN CN201621306206.8U patent/CN206854659U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623957A (en) * | 2016-11-30 | 2017-05-10 | 江永斌 | Nano particle grower capable of realizing continuous mass production of superfine nanoscale metal particles |
| CN109513917A (en) * | 2018-12-18 | 2019-03-26 | 江苏博迁新材料股份有限公司 | A kind of decreasing carbon method of PVD production nickel powder |
| CN109648093A (en) * | 2018-12-18 | 2019-04-19 | 江苏博迁新材料股份有限公司 | A kind of superfine metal nickel powder surface treatment method |
| CN111261861A (en) * | 2020-01-22 | 2020-06-09 | 金雪莉 | Method for continuously preparing high-purity carbon-silicon nano material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106623957A (en) | Nano particle grower capable of realizing continuous mass production of superfine nanoscale metal particles | |
| CN206854659U (en) | The particle growth device of continuous volume production ultrafine nanometer metallic | |
| CN106735279A (en) | The device of the continuous volume production high-purity Nano-class metallic of circulating cooling | |
| CN104722764B (en) | Cyclically-cooled metal powder evaporation preparation device | |
| CN104607646B (en) | Production method for sub-micron-order Re-Ni rare earth hydrogen storage alloy powder | |
| CN206588345U (en) | The device of the continuous volume production high-purity Nano-class metallic of circulating cooling | |
| CN100457339C (en) | Continuous production apparatus for nano metal powder | |
| US11813675B2 (en) | Integrated device for preparing magnesium hydride powder and method for preparing magnesium hydride powder | |
| CN110455006B (en) | Waste heat recovery and energy cascade utilization coupling system of metallurgical oxygen plant | |
| CN102951643A (en) | Production method of nano-grade spherical silica powder | |
| CN109719303A (en) | A kind of submicron order iron-nickel alloy powder producing method of soft magnetic materials | |
| CN109317690A (en) | A kind of preparation method of graphene enhancing aluminum-base composite foamed material | |
| CN104588670A (en) | Preparation method of nano-grade Mg-Y-Ni hydrogen storage alloy powder | |
| CN206801710U (en) | A kind of cooling system that gas turbine inlet air cooling is carried out using natural gas | |
| CN206635042U (en) | A kind of continuous volume production silicon nanowires group or the device of silicon flocculence cluster of grains | |
| CN108332507A (en) | A kind of devices and methods therefor for producing fluid ice crystal using LNG cold energy | |
| CN102691020B (en) | Gd-based bulk amorphous alloy with large amorphous forming ability and high magnetocaloric effect, and preparation method thereof | |
| CN111014702B (en) | Energy-saving system for gas atomization powder making equipment | |
| CN107055543A (en) | A kind of continuous volume production silicon nanowires group or the device of silicon flocculence cluster of grains | |
| CN203639595U (en) | Polycrystalline silicon ingot casting furnace | |
| CN113373305B (en) | Titanium sponge production reactor | |
| CN213353270U (en) | Energy-saving cooling device of forming machine | |
| CN204324916U (en) | Molybdenum oxide nanoparticles production equipment | |
| CN104495933A (en) | Production device and method of molybdenum oxide nanoparticles | |
| CN208222987U (en) | A kind of device for producing fluid ice crystal using LNG cold energy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Taizhou Jinbo New Material Co.,Ltd. Assignor: Jiang Yongbin Contract record no.: X2021980000987 Denomination of utility model: Nano particle grower for continuous mass production of ultra fine nano metal particles Granted publication date: 20180109 License type: Exclusive License Record date: 20210203 |
|
| EE01 | Entry into force of recordation of patent licensing contract |