JP6925379B2 - 水から酸素17同位体を分離する方法及びこれを利用した酸素17同位体の濃縮方法 - Google Patents
水から酸素17同位体を分離する方法及びこれを利用した酸素17同位体の濃縮方法 Download PDFInfo
- Publication number
- JP6925379B2 JP6925379B2 JP2019052799A JP2019052799A JP6925379B2 JP 6925379 B2 JP6925379 B2 JP 6925379B2 JP 2019052799 A JP2019052799 A JP 2019052799A JP 2019052799 A JP2019052799 A JP 2019052799A JP 6925379 B2 JP6925379 B2 JP 6925379B2
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- isotope
- water
- formaldehyde
- separating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- QVGXLLKOCUKJST-OUBTZVSYSA-N oxygen-17 atom Chemical compound [17O] QVGXLLKOCUKJST-OUBTZVSYSA-N 0.000 title claims description 170
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 113
- 238000000034 method Methods 0.000 title claims description 42
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 234
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical group [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 claims description 63
- 238000006303 photolysis reaction Methods 0.000 claims description 45
- 229910052739 hydrogen Inorganic materials 0.000 claims description 27
- 239000001257 hydrogen Substances 0.000 claims description 27
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 26
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 26
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 20
- 230000015843 photosynthesis, light reaction Effects 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- 239000007864 aqueous solution Substances 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- 230000003197 catalytic effect Effects 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 7
- 239000013307 optical fiber Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 4
- 239000008098 formaldehyde solution Substances 0.000 claims description 3
- 239000007858 starting material Substances 0.000 claims 1
- 230000002194 synthesizing effect Effects 0.000 claims 1
- 239000000047 product Substances 0.000 description 15
- OKTJSMMVPCPJKN-NJFSPNSNSA-N Carbon-14 Chemical compound [14C] OKTJSMMVPCPJKN-NJFSPNSNSA-N 0.000 description 11
- 238000001228 spectrum Methods 0.000 description 11
- 239000002994 raw material Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- QVGXLLKOCUKJST-NJFSPNSNSA-N oxygen-18 atom Chemical compound [18O] QVGXLLKOCUKJST-NJFSPNSNSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000002285 radioactive effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- -1 1 H 2 O ) Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000005372 isotope separation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000001782 photodegradation Methods 0.000 description 2
- 238000006862 quantum yield reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-OUBTZVSYSA-N Carbon-13 Chemical compound [13C] OKTJSMMVPCPJKN-OUBTZVSYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000007868 Raney catalyst Substances 0.000 description 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- 229910000564 Raney nickel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910052805 deuterium Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000000155 isotopic effect Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002211 methanization Effects 0.000 description 1
- 238000007069 methylation reaction Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002901 radioactive waste Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B5/00—Water
- C01B5/02—Heavy water; Preparation by chemical reaction of hydrogen isotopes or their compounds, e.g. 4ND3 + 7O2 ---> 4NO2 + 6D2O, 2D2 + O2 ---> 2D2O
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D59/00—Separation of different isotopes of the same chemical element
- B01D59/28—Separation by chemical exchange
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/40—Carbon monoxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D59/00—Separation of different isotopes of the same chemical element
- B01D59/34—Separation by photochemical methods
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
- B01J19/121—Coherent waves, e.g. laser beams
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/04—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of inorganic compounds, e.g. ammonia
- C01B3/042—Decomposition of water
- C01B3/045—Decomposition of water in gaseous phase
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
- C07C1/02—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of a carbon
- C07C1/04—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of a carbon from carbon monoxide with hydrogen
- C07C1/0485—Set-up of reactors or accessories; Multi-step processes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/45—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0871—Heating or cooling of the reactor
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/0873—Materials to be treated
- B01J2219/0875—Gas
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J2219/12—Processes employing electromagnetic waves
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/05—Isotopically modified compounds, e.g. labelled
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
- C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
- C07C2523/74—Iron group metals
- C07C2523/755—Nickel
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Toxicology (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
ホルムアルデヒド(formaldehyde、H2CO)ガスに340〜360nmの波長領域の紫外線光を照射すると、下記式(1)のように、水素分子(H2)及び一酸化炭素(CO)に光分解される。
図4は酸素17同位体の選択度が400である分離工程における、光分解生成物(photodissociated product)の濃縮度と放水(tail water)の成分比の関係を示すものである。
重水にホルムアルデヒドをモル比0.2以下で溶かしたホルムアルデヒド水溶液501を343Kで加熱して発生させた、重水とホルムアルデヒドの蒸気を、圧力が5〜15トル程度となるように光分解装置502に注入した。343Kで加熱された光分解装置502では、酸素17同位体、ホルムアルデヒドが光分解され、同時に残存ホルムアルデヒドと重水の間に下記式(3)のような酸素同位体交換(oxygen−isotope exchange)反応が起こる。
水にホルムアルデヒドをモル比0.1〜0.2程度で溶かした水溶液501を373〜393Kで加熱して発生させたホルムアルデヒド水溶液の蒸気を、圧力が約5トル程度となるように光分解装置502に注入した。373Kで加熱された光分解装置502では、酸素17同位体、ホルムアルデヒドが光分解され、同時にホルムアルデヒドと水の間に酸素同位体交換(oxygen−isotope exchange)反応が起こる。
102、202 酸素17同位体が3.8%である濃縮ホルムアルデヒドの光分解スペクトル
301 酸素17同位体が0.059%の重水であるとき
302 酸素17同位体が0.037%の軽水であるとき
501 ホルムアルデヒド水溶液
502 ホルムアルデヒド光分解装置
503 ホルムアルデヒド及び水のトラップ装置
504 メタン化装置
505 酸素17濃縮水のトラップ装置
506 高濃縮のための酸素17濃縮水の再循環
Claims (10)
- 酸素17同位体を含む水にホルムアルデヒドをモル比0.01〜0.3の含有量で混合してホルムアルデヒド水溶液を製造する段階と、
前記ホルムアルデヒド水溶液を加熱して水蒸気及びホルムアルデヒド蒸気を含む蒸気混合物を生成する段階と、
前記蒸気混合物に波数(wavenumber)が28370cm−1〜28400cm−1であるレーザーを照射して酸素17同位体を含むホルムアルデヒドを光分解して、酸素17同位体が濃縮された一酸化炭素及び水素を含む混合ガス、酸素17同位体が除去された水、及び残存ホルムアルデヒドを得る段階と、を含み、
前記蒸気混合物を生成する段階の蒸気混合物は、酸素同位体交換反応によって生成される前記酸素17同位体を含むホルムアルデヒドを含む、水から酸素17同位体を分離する方法。 - 前記加熱は320〜400Kの範囲温度で行われる、請求項1に記載の水から酸素17同位体を分離する方法。
- 前記蒸気混合物の光分解は1〜15トルの圧力下で行われる、請求項1又は請求項2に記載の水から酸素17同位体を分離する方法。
- 前記蒸気混合物を光分解するときの光分解レーザーの波数(wavenumber)は28374.63cm−1、28396.32cm−1、28397.06cm−1又はこれらの組み合わせである、請求項1から請求項3のいずれか一項に記載の水から酸素17同位体を分離する方法。
- 前記蒸気混合物を光分解するときに用いられる光分解レーザーは光ファイバレーザーである、請求項1から請求項4のいずれか一項に記載の水から酸素17同位体を分離する方法。
- 前記酸素17同位体を含む水は、重水、軽水又はこれらの混合である、請求項1から請求項5のいずれか一項に記載の水から酸素17同位体を分離する方法。
- 前記酸素17同位体が濃縮された一酸化炭素及び水素を含む混合ガス、酸素17同位体が除去された水、及び残存ホルムアルデヒドを得る段階に後続して、
酸素17同位体が除去された水及び残存ホルムアルデヒドを冷却凝縮して残存ホルムアルデヒドを分離する段階をさらに含む、請求項1から請求項6のいずれか一項に記載の水から酸素17同位体を分離する方法。 - 前記冷却は181K(−92℃)以下の温度で行われる、請求項7に記載の水から酸素17同位体を分離する方法。
- 請求項1から請求項8のいずれか一項に記載の水から酸素17同位体を分離する方法により、酸素17同位体を含む水から、酸素17同位体が濃縮された一酸化炭素及び水素を含む混合ガス、酸素17同位体が除去された水、及び残存ホルムアルデヒドを得る段階と、
前記混合ガスに水素を追加し、触媒メタン化反応させてからメタン化してメタン(CH4)及び酸素17濃縮水(H2 17O)を合成する触媒メタン化を行う段階と、を含む、酸素17濃縮水の製造方法。 - メタン化して得られた酸素17濃縮水(H2 17O)を前記水から酸素17同位体を分離する方法の原料として再循環して、酸素17濃縮水の製造工程を2段階で行う、請求項9に記載の酸素17濃縮水の製造方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20180141478 | 2018-11-16 | ||
KR10-2018-0141478 | 2018-11-16 | ||
KR1020190003990A KR102149350B1 (ko) | 2018-11-16 | 2019-01-11 | 물에서 산소-17 동위원소를 분리하는 방법 및 이를 이용한 산소-17 동위원소의 농축 방법 |
KR10-2019-0003990 | 2019-01-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020082069A JP2020082069A (ja) | 2020-06-04 |
JP6925379B2 true JP6925379B2 (ja) | 2021-08-25 |
Family
ID=70470689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019052799A Active JP6925379B2 (ja) | 2018-11-16 | 2019-03-20 | 水から酸素17同位体を分離する方法及びこれを利用した酸素17同位体の濃縮方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US11286161B2 (ja) |
JP (1) | JP6925379B2 (ja) |
CN (1) | CN111195482B (ja) |
DE (1) | DE102019108513B4 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102205241B1 (ko) | 2018-11-27 | 2021-01-20 | 한국원자력연구원 | 탄소 동위원소를 분리하는 방법 및 이를 이용한 탄소 동위원소 농축 방법 |
KR102572816B1 (ko) * | 2022-07-15 | 2023-08-31 | (주)한빛레이저 | 산소 동위원소 농축수 제조용 촉매 및 상기 촉매를 이용한 산소 동위원소 농축수의 제조방법 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4029559A (en) | 1976-06-17 | 1977-06-14 | The United States Of America As Represented By The United States Energy Research And Development Administration | Ion laser isotope enrichment by photo-predissociation of formaldehyde |
JPS5586524A (en) | 1978-12-25 | 1980-06-30 | Rikagaku Kenkyusho | Method and apparatus for enrichment of hydrogen isotope |
JPH01194932A (ja) | 1988-01-29 | 1989-08-04 | Hitachi Ltd | 水素同位体分離方法 |
JPH06102134B2 (ja) | 1989-08-30 | 1994-12-14 | 理化学研究所 | レーザーによる酸素18の濃縮法 |
JP3874502B2 (ja) | 1997-09-19 | 2007-01-31 | 株式会社日立製作所 | パルスドプラ計測装置および位相差検出方法 |
US6669827B2 (en) | 2001-06-18 | 2003-12-30 | Austin & Neff, L.L.C. | Systems and methods for affecting the ultra-fast photodissociation of water molecules |
US7125480B2 (en) * | 2001-06-18 | 2006-10-24 | Austin & Neff, Llc | Methods for affecting the ultra-fast photodissociation of water molecules |
ATE527045T1 (de) | 2003-03-04 | 2011-10-15 | Taiyo Nippon Sanso Corp | Verfahren zur sauerstoffisotopkonzentration |
CN101242888B (zh) | 2005-08-17 | 2012-09-05 | 大阳日酸株式会社 | 氧同位素的浓缩方法 |
JP5116274B2 (ja) | 2006-09-26 | 2013-01-09 | 大陽日酸株式会社 | 酸素同位体重成分の濃縮方法および濃縮装置 |
KR101329082B1 (ko) * | 2011-11-25 | 2013-11-14 | 한국원자력연구원 | 광섬유 레이저를 이용한 탄소 및 산소 동위원소 분리 방법 및 장치 |
CN103055697B (zh) | 2013-01-16 | 2016-03-23 | 江苏正能同位素有限公司 | 一种浓缩富集稳定同位素2h、18o、13c的方法和装置 |
DE102016209957A1 (de) | 2016-06-07 | 2017-12-07 | Volkswagen Aktiengesellschaft | Verfahren zum Betreiben einer Brennkraftmaschine und Brennkraftmaschine |
-
2019
- 2019-03-01 US US16/290,531 patent/US11286161B2/en active Active
- 2019-03-20 JP JP2019052799A patent/JP6925379B2/ja active Active
- 2019-03-26 CN CN201910231577.6A patent/CN111195482B/zh active Active
- 2019-04-02 DE DE102019108513.6A patent/DE102019108513B4/de active Active
Also Published As
Publication number | Publication date |
---|---|
US11286161B2 (en) | 2022-03-29 |
JP2020082069A (ja) | 2020-06-04 |
CN111195482A (zh) | 2020-05-26 |
CN111195482B (zh) | 2022-04-01 |
DE102019108513A1 (de) | 2020-05-20 |
DE102019108513B4 (de) | 2024-04-18 |
US20200156938A1 (en) | 2020-05-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9731269B2 (en) | Method and apparatus for separating carbon and oxygen isotopes by using optical fiber laser | |
JP6925379B2 (ja) | 水から酸素17同位体を分離する方法及びこれを利用した酸素17同位体の濃縮方法 | |
EP1923126B1 (en) | Method of oxygen isotope concentration | |
KR102149350B1 (ko) | 물에서 산소-17 동위원소를 분리하는 방법 및 이를 이용한 산소-17 동위원소의 농축 방법 | |
Lyman | Laser-Induced Molecular Dissociation Applications in Isotope Separation and Related Processes | |
Jensen et al. | Laser isotope separation | |
US4411755A (en) | Laser-assisted isotope separation of tritium | |
US4568436A (en) | Separation of isotopes of zirconium | |
US4035270A (en) | Isotope separation process | |
US4213836A (en) | Laser-induced separation of hydrogen isotopes in the liquid phase | |
CN111214955B (zh) | 碳同位素分离方法及利用其的碳同位素浓缩方法 | |
JP2006102727A (ja) | レーザーによる窒素同位体▲15▼nの高濃縮化の方法 | |
Pak et al. | Photolysis of alkylperoxy radicals frozen out from the gas phase | |
Beattie et al. | Laser-induced separation of hydrogen isotopes in the liquid phase | |
Jensen | Hydrogen isotope separation from water | |
Hackett | A Review of Laser Enrichment of Carbon Isotopes | |
Christman et al. | Production of carrier-free H/sup 11/CN | |
JP2003267986A (ja) | 2−デオキシ−2−[18f]フルオロ−d−グルコースの製造方法 | |
Benson | Method of deuterium isotope separation and enrichment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190320 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200519 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200813 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20210119 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20210416 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20210713 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210803 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6925379 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |