CN107824124A - A kind of nano material preparation facilities and method - Google Patents
A kind of nano material preparation facilities and method Download PDFInfo
- Publication number
- CN107824124A CN107824124A CN201711115758.XA CN201711115758A CN107824124A CN 107824124 A CN107824124 A CN 107824124A CN 201711115758 A CN201711115758 A CN 201711115758A CN 107824124 A CN107824124 A CN 107824124A
- Authority
- CN
- China
- Prior art keywords
- explosion tank
- current source
- constant
- pedestal
- detonation
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/03—Pressure vessels, or vacuum vessels, having closure members or seals specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Composite Materials (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention provides a kind of nano material preparation facilities and method, its device includes the output axis connection of anti-explosion tank, anti-explosion tank and motor, drives the anti-explosion tank to rotate by the rotation of motor;Anti-explosion tank is detachably connected by exhaust outlet vavuum pump;Pressure relief opening is additionally provided with anti-explosion tank, pressure release screw is connected with pressure relief opening;Anti-explosion tank is also threaded with pedestal, mixing powder column, pressure sensor, electrode and detonator are respectively fixed with pedestal in anti-explosion tank, on pedestal power module, constant-current source, controller and radio receiving transmitting module are additionally provided with outside anti-explosion tank, the pressure sensor, constant-current source and radio receiving transmitting module are connected with controller signals respectively, detonator electrically connects with constant-current source, and constant-current source, electrode and controller electrically connect with power module respectively.Synthetic technology complexity when the present invention can overcome traditional chemical industry synthesis method to prepare oxide-based nanomaterial is cumbersome, and process conditions are difficult to control, and yield poorly, and pollute the shortcomings of big.
Description
Technical field
The present invention relates to field of nano material preparation, more particularly to a kind of nano material preparation facilities and method.
Background technology
Nanometer oxide material is the stock for preparing nano-device, and nanometer is prepared using the chemical industry synthesis method of routine
During oxide material, there are shortcomings, including synthetic technology complexity is cumbersome, process conditions are difficult to control, and yield poorly, and pollution is big
The shortcomings of.In order to overcome shortcoming caused by conventional chemical industry synthesis, the method synthesis nanometer using detonation has been developed in recent years
Material.
Detonation Process refer to using oxygen negative explosive blast caused by TRANSIENT HIGH TEMPERATURE and high pressure, raw material is decomposed rapidly,
Then assemble crystallization and form the technology of nano material, be the recent studies on direction that explosion mechanics and materialogy combine, and technique
Simply, it can effectively mitigate the pollution to environment, easily realize scale, be the green technology for preparing nano-powder, have
Good economic benefit and social benefit.On the one hand the mechanism of action of explosive field is explode caused gas and HTHP
Field provides material and the energy for the synthesis of nano-particle and phase in version, and another aspect oxygen negative explosive is caused by explosion time
Class gaseous state free carbon atom deposits in nanoparticle surface, plays space steric effect, organizes the growth and reunion of nano-particle.
Detonation Process is a kind of cheap, easily controllable technological parameter, the method close to vapor- phase synthesis.As a kind of brand-new synthetic technology,
It by it is simple to operate, cost is cheap, suitable for synthesizing a variety of simple substance, oxide and composite oxides, spy applied widely
Point receives the widely studied of researcher.From Explosive detonation technology in itself for, can solve cheap, pollution-free, a large amount of synthesis
The problem of nano-oxide, nanometer double oxide.The nano-particle of Explosive detonation is actually the gas in high pressure high-density state
In quickly generate, and expanded with the follow-up superhigh speed of detonation gas one, the easily prepared preferable nano-particle of dispersiveness.
The content of the invention
The purpose of the present invention is to overcome problems of the prior art, there is provided a kind of nano material preparation facilities and side
Method, oxide-based nanomaterial is prepared by the method for detonation, traditional chemical industry synthesis method can be overcome to prepare oxidate nano
Synthetic technology complexity during material is cumbersome, and process conditions are difficult to control, and yield poorly, and pollute the shortcomings of big.
The technical scheme is that:A kind of nano material preparation facilities, including base, the middle part of the base are provided with two
Individual supporter, is provided with anti-explosion tank between two supporters, the left end of the anti-explosion tank and passes through between the supporter in left side
First rotating shaft connect, the right-hand member of anti-explosion tank and between the supporter on right side by the second rotating shaft connect, wherein the second rotating shaft
Be fixedly connected between anti-explosion tank, the second rotating shaft be placed through right side supporter and with motor axis connection, pass through motor turn
Kinetic energy enough drives the anti-explosion tank around the first rotating shaft and the second axis of rotation;Exhaust outlet, institute are additionally provided with the anti-explosion tank
The one end for stating exhaust outlet and blast pipe is detachably connected, and the other end of blast pipe is connected with vavuum pump, and the vavuum pump is used to lead to
Blast pipe is crossed to being vacuumized in the anti-explosion tank;The upper end of the anti-explosion tank is additionally provided with pressure relief opening, and pressure release is connected with pressure relief opening
Screw;The lower end of the anti-explosion tank is threaded with pedestal, is respectively fixed with mixing powder column, pressure on pedestal in anti-explosion tank
Sensor, electrode and detonator, power module, constant-current source, controller and nothing are additionally provided with outside anti-explosion tank on the pedestal
Line transceiver module, the pressure sensor, constant-current source and radio receiving transmitting module are connected with controller signals respectively, detonator and perseverance
Stream source electrically connects, and constant-current source, electrode and controller electrically connect with power module respectively;The radio receiving transmitting module is used for nothing
The pressure signal that the pressure sensor detects is sent to data acquisition end, while radio receiving transmitting module by the mode of line
The detonation order sent for wirelessly receiving external remote control end.
The device also includes filtering purifying plant and calciner plant, and the filter purifying plant is used to filter and purify explosion-proof
Caused detonation product in tank, the calciner plant are used to calcine the detonation product after filtering and purification, so as to
To final required nanometer oxide material.
Being covered with the inwall of above-mentioned anti-explosion tank has for forming the bulge-structure hindered to air-flow caused by detonation.
Above-mentioned detonator uses electric blasting cap.
The explosive and precursor mixture that above-mentioned mixing powder column is suppressed using positioning pressing method.
A kind of preparation method of nano material, comprises the following steps:
1) explosive of required ratio and oxide precursor are pressed into the mixing medicine of certain density according to positioning pressing method
Post;
2) pedestal is disassembled from the anti-explosion tank, and mixing powder column is installed on pedestal, and installs detonator, will be pressed
Force snesor, constant-current source and radio receiving transmitting module connect with controller signals respectively, while detonator is electrically connected with constant-current source
Connect, and triggering probe is set, then constant-current source, electrode and controller are electrically connected with power module respectively;Pedestal is installed on
On anti-explosion tank;
3) anti-explosion tank inside is vacuumized by vavuum pump, when vacuumize reach needed for vacuum level requirements when, close vacuum
Pump and exhaust outlet, and blast pipe is separated with exhaust outlet;
4) start motor, anti-explosion tank is rotated at a high speed under the drive of motor;
5) detonation order is sent to controller through radio receiving transmitting module by external remote control end, controller control constant-current source makes
Blasting cap initiation;The pressure signal that the pressure sensor detects wirelessly is sent to no line number by radio receiving transmitting module
According to collection terminal, detonation pressure related data is recorded;
6) treat that detonation finishes, close motor, after anti-explosion tank cooling, clear up anti-explosion tank, collect detonation product, clear up impurity,
Carry out filtering purification, calcining etc. processing, further characterization research is carried out to gained nanometer oxide material, with determine its pattern,
The parameters such as crystal structure.
Beneficial effects of the present invention:In the embodiment of the present invention, there is provided a kind of nano material preparation facilities and method, by quick-fried
Hong method prepares oxide-based nanomaterial, conjunction when can overcome traditional chemical industry synthesis method to prepare oxide-based nanomaterial
Cumbersome into technical sophistication, process conditions are difficult to control, and yield poorly, and pollute the shortcomings of big.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention;
Fig. 2 is the connection block diagram of the electric part on the anti-explosion tank of apparatus of the present invention;
Fig. 3 is the vavuum pump and the electrical connection block diagram of motor and external power source of apparatus of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is described in detail, it is to be understood that of the invention
Protection domain do not limited by embodiment.
Referring to Fig. 1, Fig. 2 and Fig. 3, the embodiments of the invention provide a kind of nano material preparation facilities and method, the present invention
Main inventive purpose be to design oxide-based nanomaterial blast synthetic reaction device, use solid mixt explosive for
Presoma, different detonation parameters can be controlled in building-up process, as the species of explosive, detonation property, ratio in the feed,
Charging means etc., while recordable detonation parameter, presoma are with the when experiment parameter such as form and detonation product.The dress of the present invention
Put including base 1, the middle part of the base 1 is provided with two supporters 15, anti-explosion tank 2 is provided between two supporters 15, described
The left end of anti-explosion tank 2 and connected between the supporter 15 in left side by first rotating shaft 18, the right-hand member of the anti-explosion tank 2 and position
Connected between the supporter 15 on right side by the second rotating shaft 19, wherein be fixedly connected between the second rotating shaft 19 and anti-explosion tank 2, the
Two rotating shafts 19 be placed through right side supporter 15 and with the axis connection of motor 3, can be driven by the rotation of motor 3 described explosion-proof
Tank 2 rotates around the rotating shaft 19 of first rotating shaft 18 and second;Exhaust outlet 17, the exhaust outlet 17 are additionally provided with the anti-explosion tank 2
It is detachably connected with one end of blast pipe 14, the other end of blast pipe 14 is connected with vavuum pump 4, and the vavuum pump 4 is used to pass through
Blast pipe 14 in the anti-explosion tank 2 to vacuumizing;The upper end of the anti-explosion tank 2 is additionally provided with pressure relief opening 13, is connected on pressure relief opening 13
There is pressure release screw;The lower end of the anti-explosion tank 2 is threaded with pedestal 5, is respectively fixed with pedestal 5 in anti-explosion tank 2 mixed
Powder column 7, pressure sensor 12, electrode 11 and detonator 6 are closed, power module is additionally provided with outside anti-explosion tank 2 on the pedestal 5
10th, constant-current source 9, controller and radio receiving transmitting module 8, the pressure sensor 12, constant-current source 9 and radio receiving transmitting module 8
Be connected respectively with controller signals, detonator 6 electrically connects with constant-current source 9, constant-current source 9, electrode 11 and controller respectively with power supply
Module 10 electrically connects;The controller is specifically single-chip microcomputer.The radio receiving transmitting module 8 is used for wirelessly by the pressure
The pressure signal that force snesor 12 detects is sent to data acquisition end, while radio receiving transmitting module 8 is used for by wireless
Mode receive the detonation order that external remote control end is sent.By before detonation to vacuumized in advance in anti-explosion tank can be more favourable
Air-flow is produced in detonation, while can also exclude the air inside anti-explosion tank in advance to adverse effect caused by detonation.By
Motor driven anti-explosion tank high-speed rotation can further be such that caused particle powder in blast process is formed more during detonation
Complicated collision, in favor of producing nano particle.
Further, the device also includes filtering purifying plant and calciner plant, and the filter purifying plant is used to filter
And caused detonation product in anti-explosion tank 2 is purified, the calciner plant is used to carry out the detonation product after filtering and purification
Calcining, so as to obtain final required nanometer oxide material.
Further, being covered with the inwall of the anti-explosion tank 2 has for forming the convex of obstruction to air-flow caused by detonation
Structure 16 is played, so as to be more beneficial for the formation of nano particle.
Further, the detonator 6 uses electric blasting cap.
Further, the explosive and precursor mixture that the mixing powder column 7 is suppressed using positioning pressing method.
Preparation method of nano material provided by the invention, comprises the following steps:
1) explosive of required ratio and oxide precursor are pressed into the mixing medicine of certain density according to positioning pressing method
Post;
2) pedestal 5 disassembles from the anti-explosion tank 2, mixing powder column 7 is installed on pedestal 5, and install detonator
6, pressure sensor 12, constant-current source 9 and radio receiving transmitting module 8 are connected with controller signals respectively, while make detonator 6 with
Constant-current source 9 is electrically connected, and sets triggering probe, then constant-current source 9, electrode 11 and controller are electrically connected with power module 10 respectively
Connect;Pedestal 5 is installed on anti-explosion tank 2;
3) by vavuum pump 4 to being vacuumized inside anti-explosion tank 2, when vacuumize reach needed for vacuum level requirements when, close true
Empty pump 4 and exhaust outlet 17, and blast pipe 14 is separated with exhaust outlet 17;
4) start motor 3, anti-explosion tank 2 is rotated at a high speed under the drive of motor 3;
5) detonation order, controller control constant-current source 9 are sent to controller through radio receiving transmitting module 8 by external remote control end
Detonator 6 is set to detonate;The pressure signal that the pressure sensor 12 detects wirelessly is sent to by radio receiving transmitting module 8
Data acquisition end, record detonation pressure related data;
6) treat that detonation finishes, close motor 3, after anti-explosion tank cooling, clear up anti-explosion tank 2, collect detonation product, cleaning is miscellaneous
Matter, the processing such as filtering purification, calcining is carried out, further characterization research is carried out to gained nanometer oxide material, to determine its shape
The parameters such as looks, crystal structure.
In summary, the invention provides a kind of nano material preparation facilities and method, oxygen is prepared by the method for detonation
Compound nano material, synthetic technology complexity when can overcome traditional chemical industry synthesis method to prepare oxide-based nanomaterial are numerous
Trivial, process conditions are difficult to control, and yield poorly, and pollute the shortcomings of big.
Disclosed above is only several specific embodiments of the present invention, and still, the embodiment of the present invention is not limited to this, is appointed
What what those skilled in the art can think change should all fall into protection scope of the present invention.
Claims (6)
1. a kind of nano material preparation facilities, it is characterised in that including base (1), the middle part of the base (1) is provided with two branch
Support body (15), anti-explosion tank (2), the left end of the anti-explosion tank (2) and the support positioned at left side are provided between two supporters (15)
By first rotating shaft (18) connection, the right-hand member of the anti-explosion tank (2) and between the supporter (15) on right side between body (15)
Connected by the second rotating shaft (19), wherein being fixedly connected between the second rotating shaft (19) and anti-explosion tank (2), the second rotating shaft (19) passes through
Positioned at right side supporter (15) and with motor (3) axis connection, the anti-explosion tank (2) can be driven by the rotation of motor (3)
Rotated around the first rotating shaft (18) and the second rotating shaft (19);Exhaust outlet (17), the exhaust are additionally provided with the anti-explosion tank (2)
Mouth (17) and one end of blast pipe (14) are detachably connected, and the other end of blast pipe (14) is connected with vavuum pump (4), the vacuum
Pump (4) is used for by blast pipe (14) to being vacuumized in the anti-explosion tank (2);The upper end of the anti-explosion tank (2) is additionally provided with pressure release
Mouth (13), pressure relief opening are connected with pressure release screw on (13);The lower end of the anti-explosion tank (2) is threaded with pedestal (5), pedestal
(5) mixing powder column (7), pressure sensor (12), electrode (11) and detonator (6) are respectively fixed with anti-explosion tank (2),
On the pedestal (5) power module (10), constant-current source (9), controller and wireless receiving and dispatching mould are additionally provided with outside anti-explosion tank (2)
Block (8), the pressure sensor (12), constant-current source (9) and radio receiving transmitting module (8) are connected with controller signals respectively, thunder
Pipe (6) electrically connects with constant-current source (9), and constant-current source (9), electrode (11) and controller electrically connect with power module (10) respectively;
The radio receiving transmitting module (8) is used to wirelessly be sent to the pressure signal that the pressure sensor (12) detects
Data acquisition end, while radio receiving transmitting module (8) is used to wirelessly receive that external remote control end is sent
Quick-fried order.
A kind of 2. nano material preparation facilities as claimed in claim 1, it is characterised in that also include filtering purifying plant and
Calciner plant, the filter purifying plant are used to filter and purify caused detonation product in anti-explosion tank (2), the calciner plant
For being calcined to the detonation product after filtering and purification, so as to obtain final required nanometer oxide material.
3. a kind of nano material preparation facilities as claimed in claim 1, it is characterised in that on the inwall of the anti-explosion tank (2)
Being covered with has for forming the bulge-structure (16) hindered to air-flow caused by detonation.
4. a kind of nano material preparation facilities as claimed in claim 1, it is characterised in that the detonator (6) uses electric initiating
Detonator.
5. a kind of nano material preparation facilities as claimed in claim 1, it is characterised in that the mixing powder column (7) is using fixed
The explosive and precursor mixture of position pressing method compacting.
6. a kind of preparation method of nano material, it is characterised in that comprise the following steps:
1) explosive of required ratio and oxide precursor are pressed into the mixing powder column of certain density according to positioning pressing method;
2) pedestal (5) is disassembled from the anti-explosion tank (2), and mixing powder column (7) is installed on pedestal (5), and is installed
Detonator (6), pressure sensor (12), constant-current source (9) and radio receiving transmitting module (8) are connected with controller signals respectively,
Detonator (6) is electrically connected with constant-current source (9) simultaneously, and triggering probe is set, then by constant-current source (9), electrode (11) and control
Device electrically connects with power module (10) respectively;Pedestal (5) is installed on anti-explosion tank (2);
3) by vavuum pump (4) to vacuumizing inside anti-explosion tank (2), when vacuumize reach needed for vacuum level requirements when, close true
Empty pump (4) and exhaust outlet (17), and blast pipe (14) is separated with exhaust outlet (17);
4) start motor (3), anti-explosion tank (2) is rotated at a high speed under the drive of motor (3);
5) detonation order, controller control constant-current source (9) are sent to controller through radio receiving transmitting module (8) by external remote control end
Detonator (6) is set to detonate;The pressure signal that radio receiving transmitting module (8) wirelessly detects the pressure sensor (12)
Data acquisition end is sent to, records detonation pressure related data;
6) treat that detonation finishes, close motor (3), after anti-explosion tank (2) cooling, clear up anti-explosion tank (2), collect detonation product, cleaning
Impurity, the processing such as filtering purification, calcining is carried out, further characterization research is carried out to gained nanometer oxide material, to determine it
The parameters such as pattern, crystal structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711115758.XA CN107824124A (en) | 2017-11-13 | 2017-11-13 | A kind of nano material preparation facilities and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711115758.XA CN107824124A (en) | 2017-11-13 | 2017-11-13 | A kind of nano material preparation facilities and method |
Publications (1)
Publication Number | Publication Date |
---|---|
CN107824124A true CN107824124A (en) | 2018-03-23 |
Family
ID=61654262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711115758.XA Pending CN107824124A (en) | 2017-11-13 | 2017-11-13 | A kind of nano material preparation facilities and method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107824124A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0951440A4 (en) * | 1997-01-13 | 2000-03-15 | Daimlerchrysler Aerospace Ag | Method and apparatus for producing complex carbon molecules |
CN103011243A (en) * | 2012-12-01 | 2013-04-03 | 中北大学 | Preparation method of nano metal oxide and reaction device for preparing nano metal oxide |
CN202893264U (en) * | 2012-10-24 | 2013-04-24 | 无锡东恒新能源材料有限公司 | Nanotube slurry premixing and temporary storing device |
CN205760894U (en) * | 2016-06-29 | 2016-12-07 | 泰州顶润食品有限公司 | It is applied to the high-efficiency stirring structure of production of condiments |
-
2017
- 2017-11-13 CN CN201711115758.XA patent/CN107824124A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0951440A4 (en) * | 1997-01-13 | 2000-03-15 | Daimlerchrysler Aerospace Ag | Method and apparatus for producing complex carbon molecules |
CN202893264U (en) * | 2012-10-24 | 2013-04-24 | 无锡东恒新能源材料有限公司 | Nanotube slurry premixing and temporary storing device |
CN103011243A (en) * | 2012-12-01 | 2013-04-03 | 中北大学 | Preparation method of nano metal oxide and reaction device for preparing nano metal oxide |
CN205760894U (en) * | 2016-06-29 | 2016-12-07 | 泰州顶润食品有限公司 | It is applied to the high-efficiency stirring structure of production of condiments |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107163258B (en) | Preparation method of metal organic framework material UiO-66 in ethanol phase | |
CN108128761B (en) | Continuous preparation method of black phosphorus | |
CN107331859A (en) | A kind of method of one-pot Fast back-projection algorithm ternary anode material of lithium battery presoma | |
EP1513771A1 (en) | Process for the production of precipitated calcium carbonate and product produced thereby | |
CN104891448B (en) | Transition metal oxide nano material, preparation method and application thereof | |
CN102728844A (en) | Method for preparing superfine iron powder at low cost | |
CN108383400A (en) | High-purity and highly active calcium oxide calcining kiln and method for calcinating | |
CN102198388A (en) | Method and device for synthesizing compound by solid phase reaction | |
CN107824124A (en) | A kind of nano material preparation facilities and method | |
Tavakoli et al. | Sonochemical synthesis and characterization of lead iodide hydroxide micro/nanostructures | |
CN1032585C (en) | Method for producing special titanium dioxide superfine powder | |
CN103011243A (en) | Preparation method of nano metal oxide and reaction device for preparing nano metal oxide | |
JP2013510062A (en) | Method for producing barium titanate | |
CN113929103A (en) | Preparation method and application of nano-scale spherical silicon micro powder | |
CN113800528A (en) | Preparation of functionalized mesoporous nano SiO by using quartz sand tailings as raw material2Method for producing a material and use thereof | |
Landge et al. | Solvent-free synthesis of nanoparticles | |
CN104556217A (en) | Method for preparing divalent metal titanate microspheres | |
CN103951709B (en) | A kind of cyclopentadienyl transiting metal nickel nitrogen complex and its preparation method and application | |
CN106315512B (en) | Mechanical force induction synthesis γ-Ca (BH4)2The method of hydrogen storage material | |
CN109399701B (en) | Crystal form conversion device for synthesizing tetragonal phase barium titanate nano powder by hydrothermal method | |
CN111632682A (en) | Particle size grading controllable preparation method of nano vanadium nitride powder | |
CN106315668B (en) | A kind of sodium titanate raw powder's production technology | |
CN1314596C (en) | Ultra-fine alpha- molybdenum oxide production process | |
CN113996260B (en) | Sulfide preparation device and method and application thereof | |
CN205702192U (en) | Intelligent robot is used in a kind of press machine loading and unloading |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180323 |