CN206553632U - A kind of electrolytic cell automates feeding device with hydrogen fluoride - Google Patents
A kind of electrolytic cell automates feeding device with hydrogen fluoride Download PDFInfo
- Publication number
- CN206553632U CN206553632U CN201720250000.6U CN201720250000U CN206553632U CN 206553632 U CN206553632 U CN 206553632U CN 201720250000 U CN201720250000 U CN 201720250000U CN 206553632 U CN206553632 U CN 206553632U
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- China
- Prior art keywords
- hydrogen fluoride
- nitrogen
- valve
- electrolytic cell
- storage tank
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- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 229910000040 hydrogen fluoride Inorganic materials 0.000 title claims abstract description 109
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 155
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 77
- 239000000463 material Substances 0.000 claims abstract description 73
- 238000003860 storage Methods 0.000 claims abstract description 44
- 230000001105 regulatory effect Effects 0.000 claims abstract description 28
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000006073 displacement reaction Methods 0.000 claims abstract description 10
- 239000007791 liquid phase Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- QAWXRNRYMDDQDB-UHFFFAOYSA-N F.[Pb] Chemical compound F.[Pb] QAWXRNRYMDDQDB-UHFFFAOYSA-N 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 description 10
- 239000001257 hydrogen Substances 0.000 description 10
- 239000002253 acid Substances 0.000 description 7
- 238000003682 fluorination reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910000792 Monel Inorganic materials 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- QKCGXXHCELUCKW-UHFFFAOYSA-N n-[4-[4-(dinaphthalen-2-ylamino)phenyl]phenyl]-n-naphthalen-2-ylnaphthalen-2-amine Chemical compound C1=CC=CC2=CC(N(C=3C=CC(=CC=3)C=3C=CC(=CC=3)N(C=3C=C4C=CC=CC4=CC=3)C=3C=C4C=CC=CC4=CC=3)C3=CC4=CC=CC=C4C=C3)=CC=C21 QKCGXXHCELUCKW-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- NXHILIPIEUBEPD-UHFFFAOYSA-H tungsten hexafluoride Chemical compound F[W](F)(F)(F)(F)F NXHILIPIEUBEPD-UHFFFAOYSA-H 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The utility model discloses a kind of electrolytic cell feeding device, including the logical material house steward of hydrogen fluoride storage tank, regulating valve, flowmeter, hydrogen fluoride, nitrogen header pipe, material passing tube and electric loop are automated with hydrogen fluoride；Hydrogen fluoride tank top pipeline is sequentially connected pressure of storage tank regulating valve and corresponding pressure of storage tank sensor, nitrogen pressure regulating valve and corresponding nitrogen pressure sensor, nitrogen header pipe；Pipeline between pressure of storage tank regulating valve and nitrogen pressure regulating valve is communicated with source nitrogen；Nitrogen displacement valve one end connects nitrogen header pipe, other end connection material passing tube；Hydrogen fluoride tank bottom hydrogen fluoride outlet conduit is connected with the logical material house steward of hydrogen fluoride flow control valve, hydrogen fluoride flowmeter, hydrogen fluoride, the logical logical material house steward of material valve one end connection of hydrogen fluoride, other end connection material passing tube in turn；Equilibrated valve one end connects material passing tube, and the other end is communicated with hydrogen gas automatic blow down system；The electric loop includes electric cell current sampler and automatic control system.The device can make electrolytic cell operate steadily.
Description
Technical field
The utility model is related to fluoride production equipment, and the electrolytic cell hydrogen fluoride more particularly to by raw material of hydrogen fluoride is certainly
Dynamicization feeding device.
Background technology
At present, hydrogen fluoride is being used in the electrolysis process of raw material, conventional hydrogen fluoride feed mode has following several：
(1) one-to-one feed mode：One electrolytic cell one hydrogen fluoride small steel cylinder of correspondence；(2) feed mode is concentrated：Many electrolytic cells are total to
It is fed with a hydrogen fluoride distribution tank.(3) Automatic-feeding mode：A kind of electric groove as disclosed in CN203174204U is automatically controlled
Means for feeding acid, hydrofluoric acid steel cylinder is put on an electronic platform balance, is connected by metal hose with acid adding busbar, and acid adding busbar is another
End is connected by metal hose with surge tank and nitrogen cylinder；Defeated sour main pipe one end is connected by manually-operated gate with acid adding busbar, separately
One end is connected by acid adding magnetic valve with each electrolytic cell, and the acid delivering tube of the electric groove of pressure balance magnetic valve one end connection, the other end connects
Connect hydrogen gas automatic blow down processing system identical with air；Faradaic current is gathered by electric loop, according to the electrolysis amount of hydrogen fluoride
Control acid adding magnetic valve is opened supplies hydrogen fluoride to each electrolytic cell.The device has the following disadvantages：(1) hydrogen fluoride steel cylinder pressure is not
It is stable, as weight reduces pressure reduction；(2) the logical material of electrolytic cell leads to material speed control unstable by noticeable degree；(3) it is
Material passing tube is avoided to be blocked by electrolyte, pressure balance magnetic valve is in open mode when not being fed, to balance in material passing tube
The hydrogen fluoride retained at the end of pressure, logical material in material passing tube passes through H2Processing system is emptied, and causes hydrogen fluoride to waste.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of electrolytic cell hydrogen fluoride automation feeding device.The dress
Putting can make electrolytic cell operate steadily, suitable industrialization, the production of extensive, many electrolytic cells.
In order to solve the above technical problems, the application provides a kind of electrolytic cell automates feeding device with hydrogen fluoride, including
The logical material house steward of hydrogen fluoride storage tank, regulating valve, flowmeter, hydrogen fluoride, nitrogen header pipe, material passing tube and electric loop；Hydrogen fluoride is stored up
The top duct of tank 1 is sequentially connected pressure of storage tank regulating valve 2 and corresponding pressure of storage tank sensor 3, nitrogen pressure regulating valve 4 and corresponding
Nitrogen pressure sensor 5, nitrogen header pipe 14；Pipeline and source nitrogen between pressure of storage tank regulating valve 2 and nitrogen pressure regulating valve 4
Communicate；The one end of nitrogen displacement valve 11 connects nitrogen header pipe 14, other end connection material passing tube 15；The bottom hydrogen fluoride of hydrogen fluoride storage tank 1
Outlet conduit is connected with the logical material house steward 13 of hydrogen fluoride flow control valve 7, hydrogen fluoride flowmeter 8, hydrogen fluoride, the logical material of hydrogen fluoride in turn
The logical material house steward 13 of the one end of valve 9 connection hydrogen fluoride, other end connection material passing tube 15；The one end of equilibrated valve 10 connects material passing tube 15,
The other end is communicated with hydrogen gas automatic blow down system；The electric loop includes electric cell current sampler and automatic control system.
Liquid-phase outlet is installed on security of system, the bottom hydrogen fluoride outlet conduit of hydrogen fluoride storage tank 1 to further enhance
Valve 6.
Preferably, the electrolytic cell quantity of hydrogen fluoride feed is received more than 2.
Preferably, automatic control system uses DCS or PLC programming Controls.
Preferably, source nitrogen uses Large Copacity liquid nitrogen storage tank, and system pressure is stable.
Preferably, the material of Large Copacity anhydrous hydrogen fluoride storage tank can be that mild steel, stainless steel, pure nickel, Monel etc. are resistance to
Corrosive Materia or the outer metal material of liner tetrafluoro.Tank capacity is determined according to usage amount.
Preferably, all valves select corrosion-resistant material, can pass through central control system remote control.
Preferably, hydrogen fluoride flowmeter selects corrosion-resistant material, can select electromagnetic flowmeter, metal pipe float flow meter
Deng.The display number of flowmeter receives automatic control system collection and monitored.
Electrolytic cell hydrogen fluoride automation feeding device described in the utility model can be in Nitrogen trifluoride, carbon tetrafluoride, six
Used in the production of the fluorides such as sulfur fluoride, tungsten hexafluoride.
Electrolytic cell automates the operation principle of feeding device with hydrogen fluoride in the utility model example：The fluorine of whole electrolytic cell
Change hydrogen feed, by robot control system(RCS) control.Robot control system(RCS) gathers the Faradaic current of electrolytic cell, and demand is calculated according to Faradaic current gauge
Fluorination hydrogen amount, as needing to be passed through the fluorination hydrogen amount in electrolytic cell.Equilibrated valve is opened, makes the nitrogen retained in material passing tube
Hydrogen treat system is emitted into, is then shut off；The logical material valve of electrolytic cell is opened, hydrogen fluoride and then pass are passed through according to certain flow rate
Close；Nitrogen flushing pressure is adjusted, nitrogen pressure is slightly less than the pressure of fluid column in material passing tube insertion electrolytic cell, nitrogen flushing valve is opened, by logical material
Hydrogen fluoride is blown to electrolytic cell in pipe, while ensureing that nitrogen does not introduce electrolytic cell.
The application method of equipment described in the utility model comprises the following steps：
(1) automatic control system gathers the Faradaic current of electrolytic cell, and the hydrogen fluoride of demand is calculated according to Faradaic current gauge
Amount.
(2) data that automatic control system is returned according to pressure of storage tank sensor 3 adjust opening for pressure of storage tank regulating valve 2
Degree, makes the pressure stability of hydrogen fluoride storage tank 1 in definite value.
(3) equilibrated valve 10 is opened, the nitrogen in material passing tube 15, closing presure balanced valve 11 is given off.
(4) the outlet line valve of hydrogen fluoride storage tank 1 is opened, hydrogen fluoride is entered after flowmeter 8 by the logical material valve 9 of hydrogen fluoride
Electrolytic cell, hydrogen fluoride intake is reached after predetermined value, closes the logical material valve 9 of hydrogen fluoride.
(5) data that robot control system(RCS) is obtained according to nitrogen pressure sensor 5 adjust nitrogen pressure regulating valve 4, make nitrogen total
The nitrogen pressure of pipe 14 is less than the pressure that material passing tube 15 inserts fluid column in electrolytic cell 12
(6) nitrogen displacement valve 11 is opened, the hydrogen fluoride in material passing tube 15 is pressed into electrolytic cell, nitrogen displacement valve 11 is closed,
Complete a logical material cycle.
Above-mentioned steps are a logical material cycles, and leading to material periodicity can be in input system, and all processes are complete by robot control system(RCS)
Into.
For more than 2 electrolytic cells of connection, the logical material process of electrolytic cell is completed by platform according to same flow.
Compared with prior art, electrolytic cell hydrogen fluoride automation feeding device described in the utility model has following excellent
Point：
(1) by using pressure sensor and pressure-regulating valve, hydrogen fluoride pressure of storage tank is automatically controlled, it is to avoid hydrogen fluoride steel
Bottle reduces pressure reduction with weight, makes production process pressure more stable；Large Copacity hydrogen fluoride storage tank is used simultaneously, it is to avoid frequency
It is numerous to change potential safety hazard and the cost of labor increase that steel cylinder is brought.
(2) led to using hydrogen fluoride flow velocity in hydrogen fluoride flow control valve and hydrogen fluoride flowmeter chain control pipeline and metering
Enter amount, logical doses can be automatically controlled by predetermined value, it is ensured that electrolytic cell even running.
(3) nitrogen header pipe pressure is controlled by nitrogen adjustment valve, at the end of the logical material of hydrogen fluoride, by the fluorination in material passing tube
Hydrogen is blown into electrolytic cell, and nitrogen is not entered electrolytic cell by nitrogen pressure governor valve control nitrogen pressure, has both avoided logical material
The hydrogen fluoride emptying loss of remaining, introduces electrolytic cell without nitrogen again, takes the hydrogen fluoride of loss out of in pipe.Equilibrated valve is used for
By the nitrogen purge in material passing tube to hydrogen gas automatic blow down system before feeding again, do not enter electrolytic cell, it is to avoid nitrogen enters electrolysis
Groove, reduces the loss of hydrogen fluoride.
Brief description of the drawings
Fig. 1 is the structural representation of electrolytic cell hydrogen fluoride automation feeding device in the utility model example.
Wherein：1. the nitrogen pressure regulating valve of 2. pressure of storage tank regulating valve of hydrogen fluoride storage tank, 3. pressure of storage tank sensor 4.
5. the logical material of the hydrogen fluoride of 8. hydrogen fluoride flowmeter of nitrogen pressure sensor 6. liquid-phase outlet valve, 7. hydrogen fluoride flow control valve 9.
Logical material house steward 14. nitrogen header pipe 15. of the hydrogen fluoride of 12. electrolytic cell of valve 10. equilibrated valve, 11. nitrogen displacement valve 13. is led to
Expects pipe
Embodiment
To introduce technical scheme provided by the utility model in more detail, it is illustrated with reference to embodiment.
As shown in figure 1, the electrolytic cell that the utility model is provided automates feeding device with hydrogen fluoride, include the fluorine of Large Copacity
Change hydrogen storage tank, regulating valve, flowmeter, hydrogen fluoride house steward, nitrogen header pipe, material passing tube and electric loop；The top of hydrogen fluoride storage tank 1
Pipeline is sequentially connected pressure of storage tank regulating valve 2 and corresponding pressure of storage tank sensor 3, nitrogen pressure regulating valve 4 and corresponding nitrogen pressure
Force snesor 5, nitrogen header pipe 14；Pipeline between pressure of storage tank regulating valve 2 and nitrogen pressure regulating valve 4 is communicated with source nitrogen；
The one end of nitrogen displacement valve 11 connects nitrogen header pipe 14, other end connection material passing tube 15；The bottom hydrogen fluoride outlet of hydrogen fluoride storage tank 1
Road is connected with the logical material house steward 13 of liquid-phase outlet valve 6, hydrogen fluoride flow control valve 7, hydrogen fluoride flowmeter 8, hydrogen fluoride, fluorination in turn
The logical logical material house steward 13 of material valve 9 one end connection hydrogen fluoride of hydrogen, other end connection material passing tube 15；The logical material of the one end of equilibrated valve 10 connection
Pipe 15, the other end is communicated with hydrogen gas automatic blow down system, is placed between the logical material valve 9 of hydrogen fluoride and nitrogen displacement valve 11；Material passing tube 15
It is connected with electrolytic cell 12；The electric loop includes electric cell current sampler and automatic control system.
Nitrogen after being adjusted through pressure of storage tank regulating valve 4 introduces the gas phase zone of hydrogen fluoride storage tank 1, and another road nitrogen passes through nitrogen
Pressure-regulating valve 4, nitrogen displacement valve 11 are connected to material passing tube 15.
Hydrogen fluoride storage tank 1 sets pressure of storage tank sensor 3, chain by pressure sensor 3 and pressure of storage tank regulating valve 2,
Control the pressure of hydrogen fluoride storage tank 1.Nitrogen header pipe 14 sets nitrogen pressure sensor 5, passes through nitrogen pressure sensor 5 and nitrogen pressure
Force regulating valve 4 is chain, controls the pressure of nitrogen header pipe 14.
Operating procedure is：
(1) the logical material cycle is inputted in robot control system(RCS), within a logical material cycle, robot control system(RCS) gathers the electricity of electrolytic cell 12
Electric current is solved, the fluorination hydrogen amount of demand is calculated according to Faradaic current gauge, the fluorination hydrogen amount for needing to be passed through in electrolytic cell 12 is used as.
(2) data that robot control system(RCS) is returned according to pressure of storage tank sensor 3 adjust the aperture of pressure of storage tank regulating valve 2, make
The pressure stability of hydrogen fluoride storage tank 1.
(3) closed after material front opening equilibrated valve is led to separate unit electrolytic cell 12 10 seconds, make what is retained in material passing tube 15
Nitrogen discharge is to hydrogen gas automatic blow down system.
(4) the logical material valve 9 of hydrogen fluoride of separate unit electrolytic cell 12 is opened, 60L/h flow velocity is set, is adopted by hydrogen fluoride flowmeter 8
Collection data on flows is passed through speed by the control hydrogen fluoride of hydrogen fluoride flow control valve 7, is passed through the fluorination hydrogen amount in electrolytic cell 12
When reaching the amount for precalculating out according to electric current, the logical logical material valve 9 of material valve hydrogen fluoride is closed.
(5) data that robot control system(RCS) is obtained according to nitrogen pressure sensor 5 adjust nitrogen pressure regulating valve 4, make nitrogen total
The nitrogen pressure of pipe 14 is slightly less than the pressure of fluid column in the insertion electrolytic cell 12 of material passing tube 15
(6) open nitrogen displacement valve to close after 11,10 seconds, hydrogen fluoride in material passing tube is blown to electrolytic cell, while ensureing nitrogen
Gas does not introduce electrolytic cell.
Above is an electrolytic cell leads to the material cycle, all processes are completed by robot control system(RCS).For many cell feed materials,
Start the logical material process of next electrolytic cell according to same flow.
Claims (7)
1. a kind of electrolytic cell automates feeding device with hydrogen fluoride, including hydrogen fluoride storage tank, regulating valve, flowmeter, hydrogen fluoride lead to
Expect house steward, nitrogen header pipe, material passing tube and electric loop；Hydrogen fluoride storage tank (1) top duct is sequentially connected pressure of storage tank regulation
Valve (2) and corresponding pressure of storage tank sensor (3), nitrogen pressure regulating valve (4) and corresponding nitrogen pressure sensor (5), nitrogen are total
Manage (14)；Pipeline between pressure of storage tank regulating valve (2) and nitrogen pressure regulating valve (4) is communicated with source nitrogen；Nitrogen displacement valve
(11) one end connection nitrogen header pipe (14), other end connection material passing tube (15)；Hydrogen fluoride storage tank (1) bottom hydrogen fluoride outlet conduit
It is connected with the logical material house steward (13) of hydrogen fluoride flow control valve (7), hydrogen fluoride flowmeter (8), hydrogen fluoride, the logical material valve of hydrogen fluoride in turn
(9) the logical material house steward (13) of one end connection, other end connection material passing tube (15)；Equilibrated valve (10) one end connects material passing tube
(15), the other end is communicated with hydrogen gas automatic blow down system；The electric loop includes electric cell current sampler and automatic control system.
2. electrolytic cell according to claim 1 automates feeding device with hydrogen fluoride, it is characterized in that the bottom of hydrogen fluoride storage tank 1
Liquid-phase outlet valve (6) is installed on hydrogen fluoride outlet conduit.
3. electrolytic cell according to claim 1 automates feeding device with hydrogen fluoride, it is characterized in that receiving hydrogen fluoride feed
Electrolytic cell quantity more than 2.
4. electrolytic cell according to claim 1 automates feeding device with hydrogen fluoride, it is characterized in that automatic control system is adopted
With DCS or PLC programming Controls.
5. electrolytic cell according to claim 1 automates feeding device with hydrogen fluoride, it is characterized in that source nitrogen carrys out arrogant hold
Measure liquid nitrogen storage tank.
6. electrolytic cell according to claim 1 automates feeding device with hydrogen fluoride, it is characterized in that all valves are in
Entreat control system remote control.
7. electrolytic cell according to claim 1 automates feeding device with hydrogen fluoride, it is characterized in that hydrogen fluoride flowmeter (8)
Selected from electromagnetic flowmeter or metal pipe float flow meter；Hydrogen fluoride flowmeter display data receive automatic control system collection and
Monitoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720250000.6U CN206553632U (en) | 2017-03-07 | 2017-03-07 | A kind of electrolytic cell automates feeding device with hydrogen fluoride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720250000.6U CN206553632U (en) | 2017-03-07 | 2017-03-07 | A kind of electrolytic cell automates feeding device with hydrogen fluoride |
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| Publication Number | Publication Date |
|---|---|
| CN206553632U true CN206553632U (en) | 2017-10-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106757145A (en) * | 2017-03-07 | 2017-05-31 | 洛阳黎明大成氟化工有限公司 | A kind of electrolytic cell automates feeding device and its application method with hydrogen fluoride |
-
2017
- 2017-03-07 CN CN201720250000.6U patent/CN206553632U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106757145A (en) * | 2017-03-07 | 2017-05-31 | 洛阳黎明大成氟化工有限公司 | A kind of electrolytic cell automates feeding device and its application method with hydrogen fluoride |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171222 Address after: 471012 Jili office building, dawn Chemical Research & Design Institute, Jili Chemical Road, Jili Road, Jili District, Luoyang, Henan, Patentee after: LUOYANG DAWN DACHENG FLUORINE CHEMICAL Co.,Ltd. Address before: 471012 Jili office building, dawn Chemical Research & Design Institute, Jili Chemical Road, Jili Road, Jili District, Luoyang, Henan, Co-patentee before: LIMING Research Institute OF CHEMICAL INDUSTRY Patentee before: LUOYANG DAWN DACHENG FLUORINE CHEMICAL Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 471012 room 103, office building, Geely Industrial Park, liming research and Design Institute of chemical industry, South Road, Geely science and Technology Park, Geely District, Luoyang City, Henan Province Patentee after: Luoyang Haohua Gas Technology Co.,Ltd. Address before: 471012 room 103, office building, Geely Industrial Park, liming research and Design Institute of chemical industry, South Road, Geely science and Technology Park, Geely District, Luoyang City, Henan Province Patentee before: LUOYANG DAWN DACHENG FLUORINE CHEMICAL Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230814 Address after: 471012 No. 12, South Road, Geely Science Park, Mengjin District, Luoyang City, Henan Province Patentee after: Haohua Gas Co.,Ltd. Address before: 471012 room 103, office building, Geely Industrial Park, liming research and Design Institute of chemical industry, South Road, Geely science and Technology Park, Geely District, Luoyang City, Henan Province Patentee before: Luoyang Haohua Gas Technology Co.,Ltd. |