CN106757145A - A kind of electrolytic cell automates feeding device and its application method with hydrogen fluoride - Google Patents

A kind of electrolytic cell automates feeding device and its application method with hydrogen fluoride Download PDF

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Publication number
CN106757145A
CN106757145A CN201710152652.0A CN201710152652A CN106757145A CN 106757145 A CN106757145 A CN 106757145A CN 201710152652 A CN201710152652 A CN 201710152652A CN 106757145 A CN106757145 A CN 106757145A
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CN
China
Prior art keywords
hydrogen fluoride
nitrogen
valve
electrolytic cell
storage tank
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Pending
Application number
CN201710152652.0A
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Chinese (zh)
Inventor
赵纪峥
魏磊
张景利
酒坤
李梅
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Haohua Gas Co Ltd
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Luoyang Liming Chemical Co Ltd
Liming Research Institute of Chemical Industry Co Ltd
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Priority to CN201710152652.0A priority Critical patent/CN106757145A/en
Publication of CN106757145A publication Critical patent/CN106757145A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00Operating or servicing cells
    • C25B15/08Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00Electrolytic production of inorganic compounds or non-metals
    • C25B1/01Products
    • C25B1/24Halogens or compounds thereof
    • C25B1/245Fluorine; Compounds thereof

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

The invention discloses a kind of electrolytic cell feeding device and its application method, 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 makes electric groove operate steadily.

Description

A kind of electrolytic cell automates feeding device and its application method with hydrogen fluoride
Technical field
The present invention relates to fluoride production equipment, the electrolytic cell more particularly to hydrogen fluoride as raw material is automated with hydrogen fluoride Feeding device and its application method.
Background technology
At present, in using hydrogen fluoride for 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 With a hydrogen fluoride distribution tank feed.(3) Automatic-feeding mode:A kind of electric groove as disclosed in CN203174204 U is controlled automatically Means for feeding acid processed, hydrofluoric acid steel cylinder is put on an electronic platform balance, is connected with acid adding busbar by metal hose, and acid adding busbar is another One end is connected by metal hose with surge tank and nitrogen cylinder;Manually valve is connected with acid adding busbar for defeated sour main pipe one end, The other end is connected by acid adding magnetic valve with each electrolytic cell, the acid delivering tube of the electric groove of pressure balance magnetic valve one end connection, the other end Connection hydrogen gas automatic blow down processing system is identical with air;Faradaic current is gathered by electric loop, according to the electrolysis of hydrogen fluoride Amount control acid adding magnetic valve is opened and supplies hydrogen fluoride to each electrolytic cell.The device has the following disadvantages:(1) hydrogen fluoride steel cylinder pressure It is unstable, as weight reduces pressure reduction;(2) the logical material of electrolytic cell leads to material speed control unstable by noticeable degree;(3) In order to avoid material passing tube is blocked by electrolyte, pressure balance magnetic valve is in open mode in not feed, to balance material passing tube The hydrogen fluoride retained in material passing tube at the end of interior pressure, logical material passes through H2Processing system is emptied, and causes hydrogen fluoride to waste.
The content of the invention
The invention solves the problems that first technical problem be to provide a kind of electrolytic cell hydrogen fluoride automation feeding device.Should Device can make electrolytic cell operate steadily, suitable industrialization, extensive, many electrolytic cell productions.
The invention solves the problems that second technical problem be to provide a kind of application method of the device.
In order to solve above-mentioned first technical problem, the application provides a kind of electrolytic cell hydrogen fluoride and automates feed dress Put, 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;Fluorine Change the top duct of hydrogen storage tank 1 and be 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 between pressure of storage tank regulating valve 2 and nitrogen pressure regulating valve 4 with Source nitrogen is communicated;The one end of nitrogen displacement valve 11 connects nitrogen header pipe 14, other end connection material passing tube 15;The bottom of hydrogen fluoride storage tank 1 Hydrogen fluoride outlet conduit is connected with the logical material house steward 13 of 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;The electric loop includes electric cell current sampler and automatic control system.
To further enhance security of system, liquid-phase outlet is installed on the bottom hydrogen fluoride outlet conduit of hydrogen fluoride storage tank 1 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, system pressure stabilization.
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 be by 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 monitors.
Electrolytic cell hydrogen fluoride of the present invention automation feeding device can be in Nitrogen trifluoride, carbon tetrafluoride, lithium Used in the production of the fluorides such as sulphur, tungsten hexafluoride.
Electrolytic cell automates the operation principle of feeding device with hydrogen fluoride in present example:The hydrogen fluoride of whole electrolytic cell Feed, by robot control system(RCS) control.Robot control system(RCS) gathers the Faradaic current of electrolytic cell, and the fluorine of demand is calculated according to Faradaic current gauge Change hydrogen amount, as the fluorination hydrogen amount for needing to be passed through in electrolytic cell.Equilibrated valve is opened, makes the nitrogen discharge retained in material passing tube To hydrogen treat system, it is then shut off;The logical material valve of electrolytic cell is opened, hydrogen fluoride is passed through according to certain flow rate, be then shut off;Adjust Section nitrogen flushing pressure, nitrogen pressure is slightly less than the pressure of fluid column in material passing tube insertion electrolytic cell, nitrogen flushing valve is opened, by fluorine in material passing tube Change hydrogen and be blown to electrolytic cell, while ensureing that nitrogen does not introduce electrolytic cell.
To solve above-mentioned second technical problem, the present invention provides a kind of electrolytic cell hydrogen fluoride and automates feeding device Application method, comprise 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, after hydrogen fluoride intake reaches predetermined value, closes the logical material valve 9 of hydrogen fluoride;
(5) the data regulation nitrogen pressure regulating valve 4 that robot control system(RCS) is obtained according to nitrogen pressure sensor 5, makes nitrogen total Pressure of the nitrogen pressure of pipe 14 less than fluid column in the insertion electrolytic cell 12 of material passing tube 15;
(6) nitrogen displacement valve 11 is opened, the hydrogen fluoride in material passing tube 15 is pressed into electrolytic cell, close nitrogen displacement valve 11, Complete a logical material cycle.
Above-mentioned steps are a logical material cycles, and all processes are completed by robot control system(RCS);For multicycle logical material, lead to material week Issue can be pre-entered in robot control system(RCS).
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 of the present invention has advantages below:
(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 brings.
(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 in pipe, takes the hydrogen fluoride of loss out of.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 present 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 hydrogen fluoride of 6. liquid-phase outlet valve of nitrogen pressure sensor, 7. hydrogen fluoride flow control valve, 8. hydrogen fluoride flowmeter 9. is logical expects The logical nitrogen header pipe 15. of material house steward 14. of the hydrogen fluoride of 12. electrolytic cell of valve 10. equilibrated valve, 11. nitrogen displacement valve 13. is led to Expects pipe
Specific embodiment
To introduce technical scheme provided by the present invention in more detail, it is illustrated with reference to embodiment.
As shown in figure 1, the electrolytic cell that the present invention is provided automates feeding device, including the storage of Large Copacity hydrogen fluoride with hydrogen fluoride Tank, regulating valve, flowmeter, hydrogen fluoride house steward, nitrogen header pipe, material passing tube and electric loop;The top duct of hydrogen fluoride storage tank 1 according to Secondary connection pressure of storage tank regulating valve 2 and corresponding pressure of storage tank sensor 3, nitrogen pressure regulating valve 4 and corresponding nitrogen pressure sensing Device 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;Nitrogen is put Change the one end of valve 11 connection nitrogen header pipe 14, other end connection material passing tube 15;The bottom hydrogen fluoride outlet conduit of hydrogen fluoride storage tank 1 is successively It 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, the logical material of hydrogen fluoride The one end of valve 9 logical material house steward 13 of 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, is placed between the logical material valve 9 of hydrogen fluoride and nitrogen displacement valve 11;Material passing tube 15 and electrolysis Groove 12 is connected;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 with pressure of storage tank regulating valve 2 by pressure sensor 3, The pressure of control hydrogen fluoride storage tank 1.Nitrogen header pipe 14 sets nitrogen pressure sensor 5, by 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 input into robot control system(RCS), within a logical material cycle, robot control system(RCS) gathers the electricity of electrolytic cell 12 Solution electric current, the fluorination hydrogen amount of demand is calculated according to Faradaic current gauge, as the fluorination hydrogen amount for needing to be passed through in electrolytic cell 12.
(2) aperture of the data regulation pressure of storage tank regulating valve 2 that robot control system(RCS) is returned according to pressure of storage tank sensor 3, makes 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 10,10 seconds, make to be retained in material passing tube 15 Nitrogen discharge to hydrogen gas automatic blow down system.
(4) the logical material valve 9 of hydrogen fluoride of separate unit electrolytic cell 12 is opened, the flow velocity of 60L/h 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 material valve 9 of hydrogen fluoride is closed.
(5) the data regulation nitrogen pressure regulating valve 4 that robot control system(RCS) is obtained according to nitrogen pressure sensor 5, makes 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 be closed after 11,10 seconds, hydrogen fluoride in material passing tube is blown into electrolytic cell, while ensureing nitrogen Gas does not introduce electrolytic cell.
Above is an electrolytic cell logical material cycle, all processes are by robot control system(RCS) completion.For many cell feed materials, Start the next logical material process of electrolytic cell according to same flow.

Claims (10)

1. a kind of electrolytic cell hydrogen fluoride automates feeding device, including hydrogen fluoride storage tank, regulating valve, flowmeter, hydrogen fluoride lead to Material 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 Pipe (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 connects nitrogen header pipe (14), and the other end connects 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, the other end connects 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 appearance Amount liquid nitrogen storage tank.
6. electrolytic cell according to claim 1 automates feeding device with hydrogen fluoride, it is characterized in that during all valves pass through Centre 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.
8. a kind of described electrolytic cell of one of claim 1~7 with hydrogen fluoride automate feeding device application method, including with Lower step:
(1) automatic control system gathers the Faradaic current of electrolytic cell, and the fluorination hydrogen amount of demand is calculated according to Faradaic current gauge;
(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) hydrogen fluoride storage tank (1) outlet line valve is opened, hydrogen fluoride is entered after flowmeter (8) by the logical material valve (9) of hydrogen fluoride Enter electrolytic cell, after hydrogen fluoride intake reaches predetermined value, close the logical material valve (9) of hydrogen fluoride;
(5) data that automatic control system is obtained according to nitrogen pressure sensor (5) adjust nitrogen pressure regulating valve (4), make nitrogen Gas house steward (14) nitrogen pressure inserts the pressure of electrolytic cell (12) interior fluid column less than material passing tube (15);
(6) nitrogen displacement valve (11) is opened, the hydrogen fluoride in material passing tube (15) is pressed into electrolytic cell (12), close nitrogen displacement valve (11) a logical material cycle, is completed.
9. application method according to claim 8, it is characterized in that:For multicycle logical material, leading to material periodicity can be defeated in advance In entering automatic control system.
10. application method according to claim 8, it is characterized in that:Equilibrated valve (10) is opened 10 seconds and closed;Nitrogen is put Change valve (11) and open closing in 10 seconds.
CN201710152652.0A 2017-03-07 2017-03-07 A kind of electrolytic cell automates feeding device and its application method with hydrogen fluoride Pending CN106757145A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108844998A (en) * 2018-06-25 2018-11-20 上海锐宇流体系统有限公司 The sampling of gravity anhydrous liquid hydrogen fluoride and on-line analysis device
CN110965078A (en) * 2019-12-10 2020-04-07 中核二七二铀业有限责任公司 Automatic control device for hydrogen fluoride feeding
CN112626548A (en) * 2020-12-22 2021-04-09 中船重工(邯郸)派瑞特种气体有限公司 Charging system and method for nitrogen trifluoride electrolytic cell
CN113430542A (en) * 2021-07-08 2021-09-24 中核四0四有限公司 Liquid hydrogen fluoride centralized feeding device of fluorine-making electrolytic cell
CN113430543A (en) * 2021-07-08 2021-09-24 中核四0四有限公司 Centralized feeding method for liquid hydrogen fluoride in fluorine-making electrolytic cell
CN118461020A (en) * 2024-07-10 2024-08-09 福建德尔科技股份有限公司 High-efficiency production equipment and production method of perfluorotripropylamine
CN118461024A (en) * 2024-07-10 2024-08-09 福建德尔科技股份有限公司 Perfluoro tripropylamine preparation device convenient for controlling pressure

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CN1668393A (en) * 2002-06-10 2005-09-14 高级技术材料公司 Pressure-based gas delivery system and method for reducing risks associated with storage and delivery of high pressure gases
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CN203174204U (en) * 2013-03-29 2013-09-04 四川众力氟业有限责任公司 Automatically controlled acid-adding device for electrolytic baths
CN104947135A (en) * 2015-06-09 2015-09-30 中国船舶重工集团公司第七一八研究所 Device for preparing nitrogen trifluoride and application
CN206553632U (en) * 2017-03-07 2017-10-13 洛阳黎明大成氟化工有限公司 A kind of electrolytic cell automates feeding device with hydrogen fluoride

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CN1668393A (en) * 2002-06-10 2005-09-14 高级技术材料公司 Pressure-based gas delivery system and method for reducing risks associated with storage and delivery of high pressure gases
CN101059206A (en) * 2002-06-10 2007-10-24 高级技术材料公司 Pressure-based gas delivery system and method for reducing risks associated with storage and delivery of high pressure gases
US20040108201A1 (en) * 2002-11-20 2004-06-10 Toyo Tanso Co., Ltd. Fluorine gas generator
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108844998A (en) * 2018-06-25 2018-11-20 上海锐宇流体系统有限公司 The sampling of gravity anhydrous liquid hydrogen fluoride and on-line analysis device
CN110965078A (en) * 2019-12-10 2020-04-07 中核二七二铀业有限责任公司 Automatic control device for hydrogen fluoride feeding
CN112626548A (en) * 2020-12-22 2021-04-09 中船重工(邯郸)派瑞特种气体有限公司 Charging system and method for nitrogen trifluoride electrolytic cell
CN113430542A (en) * 2021-07-08 2021-09-24 中核四0四有限公司 Liquid hydrogen fluoride centralized feeding device of fluorine-making electrolytic cell
CN113430543A (en) * 2021-07-08 2021-09-24 中核四0四有限公司 Centralized feeding method for liquid hydrogen fluoride in fluorine-making electrolytic cell
CN118461020A (en) * 2024-07-10 2024-08-09 福建德尔科技股份有限公司 High-efficiency production equipment and production method of perfluorotripropylamine
CN118461024A (en) * 2024-07-10 2024-08-09 福建德尔科技股份有限公司 Perfluoro tripropylamine preparation device convenient for controlling pressure

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Application publication date: 20170531