KR100987041B1 - 불화수소산 생성장치 및 불화수소산 생성방법 - Google Patents
불화수소산 생성장치 및 불화수소산 생성방법 Download PDFInfo
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- KR100987041B1 KR100987041B1 KR1020077027107A KR20077027107A KR100987041B1 KR 100987041 B1 KR100987041 B1 KR 100987041B1 KR 1020077027107 A KR1020077027107 A KR 1020077027107A KR 20077027107 A KR20077027107 A KR 20077027107A KR 100987041 B1 KR100987041 B1 KR 100987041B1
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- hydrofluoric acid
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- distillation
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- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 title claims abstract description 173
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000003463 adsorbent Substances 0.000 claims abstract description 65
- -1 fluorine ions Chemical class 0.000 claims abstract description 62
- 238000004821 distillation Methods 0.000 claims abstract description 49
- 238000001816 cooling Methods 0.000 claims abstract description 42
- 239000011737 fluorine Substances 0.000 claims abstract description 34
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002253 acid Substances 0.000 claims abstract description 22
- 229910021488 crystalline silicon dioxide Inorganic materials 0.000 claims abstract description 20
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 18
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 17
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 16
- 238000001179 sorption measurement Methods 0.000 claims abstract description 16
- 239000003513 alkali Substances 0.000 claims abstract description 15
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000919 ceramic Substances 0.000 claims abstract description 10
- 150000004761 hexafluorosilicates Chemical class 0.000 claims abstract description 10
- 150000002222 fluorine compounds Chemical class 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 50
- 238000010926 purge Methods 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 28
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 14
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 13
- 239000000376 reactant Substances 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 3
- 238000003682 fluorination reaction Methods 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 16
- 239000007788 liquid Substances 0.000 abstract description 15
- 239000002351 wastewater Substances 0.000 abstract description 9
- 230000006866 deterioration Effects 0.000 abstract description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 34
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 30
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 22
- 238000009835 boiling Methods 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 9
- 230000007062 hydrolysis Effects 0.000 description 6
- 238000006460 hydrolysis reaction Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 238000010828 elution Methods 0.000 description 5
- 229910001385 heavy metal Inorganic materials 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910001512 metal fluoride Inorganic materials 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002594 sorbent Substances 0.000 description 2
- HJTAZXHBEBIQQX-UHFFFAOYSA-N 1,5-bis(chloromethyl)naphthalene Chemical compound C1=CC=C2C(CCl)=CC=CC2=C1CCl HJTAZXHBEBIQQX-UHFFFAOYSA-N 0.000 description 1
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- MXRIRQGCELJRSN-UHFFFAOYSA-N O.O.O.[Al] Chemical compound O.O.O.[Al] MXRIRQGCELJRSN-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- GOLCXWYRSKYTSP-UHFFFAOYSA-N arsenic trioxide Inorganic materials O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- CUPFNGOKRMWUOO-UHFFFAOYSA-N hydron;difluoride Chemical compound F.F CUPFNGOKRMWUOO-UHFFFAOYSA-N 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- IEPMHPLKKUKRSX-UHFFFAOYSA-J silicon(4+);tetrafluoride Chemical compound [F-].[F-].[F-].[F-].[Si+4] IEPMHPLKKUKRSX-UHFFFAOYSA-J 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/009—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in combination with chemical reactions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
- B01D5/0006—Coils or serpentines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
- B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
- B01D5/0063—Reflux condensation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/20—Fluorine
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Water Treatment By Sorption (AREA)
- Silicon Compounds (AREA)
- Removal Of Specific Substances (AREA)
Abstract
Description
Claims (7)
- 불소 이온(弗素ion)을 함유하는 불소화합물 또는 불소혼합물로부터 불소 이온을 활성 알루미나(活性alumina) 및 이산화규소(二酸化硅素)를 주성분으로 하는 세라믹계(ceramic系)의 흡착제(吸着劑)에 의하여 흡착 처리하고, 흡착 처리 후의 흡착제를 사용하여 불화수소산(弗化水素酸)을 생성하는 불화수소산 생성장치로서,상기 흡착제와 강알칼리(强alkali) 또는 강산(强酸) 부가하여 반응시킴과 아울러 결정성 이산화규소(結晶性 二酸化硅素)를 부가하여 헥사플루오로규산(hexafluorosilicic acid) 가스를 발생시키는 증류수단(蒸溜手段)과,상기 증류수단에 의하여 발생한 헥사플루오로규산 가스를 냉각하고 가수분해(加水分解) 하여 불화수소산을 생성하는 냉각수단을 구비한것을 특징으로 하는 불화수소산 생성장치.
- 제1항에 있어서,상기 증류수단은, 인산(燐酸)을 더 부가하는 것을 특징으로 하는 불화수소산 생성장치.
- 제1항 또는 제2항에 있어서,상기 증류수단은, 증류 조작의 가열온도가 110도에서부터 160도로 설정되는 것을 특징으로 하는 불화수소산 생성장치.
- 제1항 또는 제2항에 있어서,상기 불화수소산 생성장치는, 상기 증류수단에 있어서의 증류 조작의 가열온도가 130도 이상에 도달하고 나서, 상기 증류수단으로부터 상기 냉각수단으로 헥사플루오로규산 가스를 수증기에 의하여 퍼지 하는 퍼지수단(purge手段)을 더 구비하는 것을 특징으로 하는 불화수소산 생성장치.
- 제4항에 있어서,상기 퍼지수단은, 수증기의 퍼지의 초기속도를 반응물 전량(全量)에 대하여 1분간 1/10 이하의 양의 수증기를 송출하는 속도로 하여 단계적으로 퍼지 속도를 빠르게 하여, 냉각수단에 의하여 생성된 불화수소산의 양이 상기 반응물 전량에 대하여 1~5배에 도달한 단계에서 수증기의 퍼지를 멈추게 하는 것을 특징으로 하는 불화수소산 생성장치.
- 제4항에 있어서,상기 냉각수단은 1도~20도의 범위에서 헥사플루오로규산 가스와 수증기를 액화하여 불화수소산을 얻는 것을 특징으로 하는 불화수소산 생성장치.
- 불소 이온을 함유하는 불소화합물 또는 불소혼합물로부터 불소 이온을 활성 알루미나 및 이산화규소를 주성분으로 하는 세라믹계의 흡착제에 의하여 흡착 포화까지 흡착 처리하고, 흡착 처리 후의 흡착제를 사용하여 불화수소산을 재생시키는 불화수소산 생성방법으로서,상기 흡착제와 강알칼리 또는 강산을 일정량 단계적으로 부가하여 반응시키고 또한 미량의 결정성 이산화규소와 인산을 더 부가하여 반응시켜 헥사플루오로규산을 일시적으로 생성시키는 증류공정과, 생성된 헥사플루오로규산을 냉각해 액화하면서 가수분해 시켜서 불화수소산을 생성하는 냉각공정을 구비하는 불화수소산 생성방법.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JPJP-P-2005-00191784 | 2005-06-30 | ||
JP2005191784A JP3785418B1 (ja) | 2005-06-30 | 2005-06-30 | フッ酸生成装置及びフッ酸生成方法 |
Publications (2)
Publication Number | Publication Date |
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KR20080018870A KR20080018870A (ko) | 2008-02-28 |
KR100987041B1 true KR100987041B1 (ko) | 2010-10-11 |
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KR1020077027107A Expired - Fee Related KR100987041B1 (ko) | 2005-06-30 | 2006-06-29 | 불화수소산 생성장치 및 불화수소산 생성방법 |
Country Status (4)
Country | Link |
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JP (1) | JP3785418B1 (ko) |
KR (1) | KR100987041B1 (ko) |
CN (1) | CN101277899B (ko) |
WO (1) | WO2007004516A1 (ko) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5143440B2 (ja) * | 2007-02-01 | 2013-02-13 | 森田化学工業株式会社 | フッ化水素酸、塩酸およびケイフッ化水素酸を含有する廃液から酸成分を分離・回収する方法およびその装置 |
JP5101121B2 (ja) * | 2007-02-01 | 2012-12-19 | 森田化学工業株式会社 | フッ化水素酸およびケイフッ化水素酸を含有する廃液から酸成分を分離・回収する方法およびその装置 |
JP2010206962A (ja) * | 2009-03-04 | 2010-09-16 | Central Res Inst Of Electric Power Ind | ガス絶縁電力機器の異常検出方法 |
CN102774813A (zh) * | 2011-05-12 | 2012-11-14 | 特力生有限公司 | 氢氟酸制造方法 |
CN102515107B (zh) * | 2011-10-31 | 2013-01-02 | 深圳市新星轻合金材料股份有限公司 | 一种无水氟化氢安全生产的零污染回收系统 |
CN102772911A (zh) * | 2012-08-02 | 2012-11-14 | 浙江诺睿特生物科技有限公司 | 一种冷阱 |
GB2571584A (en) * | 2018-03-29 | 2019-09-04 | Vexo International Uk Ltd | Fluid treatment |
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JPH0615266A (ja) * | 1992-07-02 | 1994-01-25 | Japan Organo Co Ltd | フッ素含有廃水の濃縮方法 |
JP2004345949A (ja) | 2004-05-24 | 2004-12-09 | Matsushita Electric Ind Co Ltd | フッ酸再生方法およびその装置 |
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CN2644402Y (zh) * | 2003-09-02 | 2004-09-29 | 焦作市多氟多化工有限公司 | 氢氟酸粗酸精制设备 |
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JPH0615266A (ja) * | 1992-07-02 | 1994-01-25 | Japan Organo Co Ltd | フッ素含有廃水の濃縮方法 |
JP2004345949A (ja) | 2004-05-24 | 2004-12-09 | Matsushita Electric Ind Co Ltd | フッ酸再生方法およびその装置 |
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CN101277899A (zh) | 2008-10-01 |
JP2008094630A (ja) | 2008-04-24 |
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KR20080018870A (ko) | 2008-02-28 |
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