WO2007029797A1 - 同位体濃縮方法 - Google Patents
同位体濃縮方法 Download PDFInfo
- Publication number
- WO2007029797A1 WO2007029797A1 PCT/JP2006/317809 JP2006317809W WO2007029797A1 WO 2007029797 A1 WO2007029797 A1 WO 2007029797A1 JP 2006317809 W JP2006317809 W JP 2006317809W WO 2007029797 A1 WO2007029797 A1 WO 2007029797A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aqueous solution
- exchange reaction
- isotope
- gas
- tower
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/08—Compounds containing halogen
- C01B33/107—Halogenated silanes
-
- 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
- B01D59/32—Separation by chemical exchange by exchange between fluids
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/02—Silicon
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/08—Compounds containing halogen
- C01B33/10—Compounds containing silicon, fluorine, and other elements
- C01B33/103—Fluosilicic acid; Salts thereof
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S423/00—Chemistry of inorganic compounds
- Y10S423/07—Isotope separation
Definitions
- Patent Document 1 discloses a method using a complex of silicon halide and the like with a C 1 -C alkyl alcohol.
- Patent Document 1 US Pat. No. 6,146,601
- the isotope enrichment method according to the present invention provides H 2 O—H 2 S in order to solve the above problems.
- the SiF may be dissolved in the aqueous solution in a saturated state.
- the gas-liquid composition can be kept constant. As a result, stable isotope enrichment operation is possible.
- the aqueous solution may have an azeotropic composition.
- the gas-liquid composition is the same in the azeotropic composition, the composition can be kept constant in the isotope exchange reaction, and a stable isotope enrichment operation is possible.
- the present invention has the following effects by the means described above.
- hydrofluoric acid is an aqueous solution of fluoroalkyl acid expressed as H SiF.
- a saturated fluorinated acid aqueous solution is used as a raw material
- a gas containing tetrafluorocarbon is generated by the gas generator 4 in addition to the saturated fluorinated acid aqueous solution, and the saturated fluorinated acid aqueous solution and the tetrafluorinated key solution are generated.
- An isotope exchange reaction with a gas containing elemental is performed.
- the tetrafluoride used as a raw material for the isotope exchange reaction is preferably purified to a high purity.
- Examples of the gas absorption device 8 include an absorption tower.
- the gas absorbing device 8 is supplied with a liquid containing hydrofluoric acid.
- the composition and amount of the liquid containing hydrofluoric acid correspond to the absorption of the tetrafluorocarbon supplied to the gas absorption device 8 and the formation of a saturated aqueous fluorinated acid solution supplied to the exchange reaction tower 1.
- Shall. In the saturated fluorinated acid aqueous solution, the heavy Si isotopes prepared in the gas absorption device 8 are concentrated, and this saturated fluorinated acid aqueous solution is supplied to the exchange reaction tower 1 via the first liquid channel 2. Is done.
- a part of the azeotropic fluorinated acid aqueous solution is vaporized while maintaining the azeotropic composition in the reheater 12, and the vapor rises in the distillation column 10. Furthermore, an isotope exchange reaction is carried out between the azeotropic fluorinated acid aqueous solution descending in the distillation column 10 and the vapor. As a result, the light isotope of Si is exchanged from the liquid side to the gas side force, and the heavy isotope of Si is exchanged from the liquid side to the gas side. Therefore, from the bottom of the distillation column 10, an azeotropic fluorinated acid aqueous solution enriched with Si light isotopes is extracted.
- Silica fluorinated acid aqueous solution is added to the bottom of the first exchange reaction tower 41 to the seventh exchange reaction tower 47.
- the surface was set to be almost constant.
- Example 3 the same procedure as in Example 3 was performed, except that the temperature of the high silica fluorinated acid solution used in Example 3 was changed from 1.5 ° C to 10 ° C.
- the composition of the saturated high silica fluorinated acid solution was investigated.
- the composition of a high silica fluorinated acid solution in which 30% by weight of hydrofluoric acid has absorbed tetrafluorobenzene to a saturated concentration has a high silica fluorinated acid concentration. 55.
- the concentration of free hydrofluoric acid was 40% by weight and 6.98% by weight. The results are shown in FIG.
- the obtained potassium fluoride was filtered off, and excess potassium fluoride was sufficiently washed with pure water to remove it.
- the potassium fluoride was then dried overnight at 120 ° C.
- the dried potassium potassium was used as a sample for measuring the separation factor at 20 ° C.
- the Si isotope abundance ratio of this sample was analyzed with a surface ionization mass spectrometer (TIMS). From this analysis result, the separation factor ⁇ for each system was calculated. These values are shown in Table 2 below along with the composition of the corresponding 1.5 ° C saturated high silica fluorosilicate aqueous solution.
- potassium potassium fluoride was obtained in the same manner as in Example 6 except that the hydrofluoric acid concentration was changed to 25% by weight. Further, using this potassium fluoride as a sample, the separation factor ⁇ of 28 Si was calculated in the same manner as in Example 6. The results are shown in Table 2 below.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Silicon Compounds (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06797665A EP1938888B1 (en) | 2005-09-08 | 2006-09-08 | Isotope concentration method |
CN2006800329135A CN101257964B (zh) | 2005-09-08 | 2006-09-08 | 同位素浓缩方法 |
KR1020087008389A KR101229593B1 (ko) | 2005-09-08 | 2006-09-08 | 동위체 농축 방법 |
US12/065,361 US7943107B2 (en) | 2005-09-08 | 2006-09-08 | Isotope enrichment method |
ES06797665T ES2377773T3 (es) | 2005-09-08 | 2006-09-08 | Método de concentración de isótopos |
AU2006288190A AU2006288190B2 (en) | 2005-09-08 | 2006-09-08 | Isotope enrichment method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005260750 | 2005-09-08 | ||
JP2005-260750 | 2005-09-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007029797A1 true WO2007029797A1 (ja) | 2007-03-15 |
Family
ID=37835912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/317809 WO2007029797A1 (ja) | 2005-09-08 | 2006-09-08 | 同位体濃縮方法 |
Country Status (10)
Country | Link |
---|---|
US (1) | US7943107B2 (ja) |
EP (1) | EP1938888B1 (ja) |
KR (1) | KR101229593B1 (ja) |
CN (1) | CN101257964B (ja) |
AU (1) | AU2006288190B2 (ja) |
ES (1) | ES2377773T3 (ja) |
GE (1) | GEP20104965B (ja) |
RU (1) | RU2399409C2 (ja) |
WO (1) | WO2007029797A1 (ja) |
ZA (1) | ZA200801807B (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2499042C1 (ru) * | 2012-04-23 | 2013-11-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Оренбургский государственный университет" | СПОСОБ ИЗОТОПНОГО ОБОГАЩЕНИЯ КЛЕТОК E.coli |
CN105548329A (zh) * | 2015-12-05 | 2016-05-04 | 渤海大学 | 化学交换法分离硅同位素过程分离系数的测定方法及其所采用的装置 |
CN105524101B (zh) * | 2015-12-17 | 2019-01-04 | 渤海大学 | 四氟化硅络合物制备方法及其所采用的设备 |
RU2618265C1 (ru) * | 2016-01-27 | 2017-05-03 | Федеральное государственное бюджетное учреждение науки Институт химии высокочистых веществ им. Г.Г. Девятых Российской академии наук (ФГБУН ИХВВ РАН) | Способ получения изотопнообогащенного тетрахлорида кремния |
CN110465196A (zh) * | 2019-08-16 | 2019-11-19 | 清华大学 | 一种绿色高效的分离碳稳定同位素的方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6146601A (en) | 1999-10-28 | 2000-11-14 | Eagle-Picher Industries, Inc. | Enrichment of silicon or germanium isotopes |
JP2003053153A (ja) * | 2001-08-20 | 2003-02-25 | Japan Atom Energy Res Inst | レーザーによるシリコン同位体の高効率分離・濃縮法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3365573A (en) * | 1965-01-12 | 1968-01-23 | Atomic Energy Commission Usa | Method of separating of silicon isotopes using silicon disulfide as the feed material |
WO2000048941A1 (en) | 1999-02-16 | 2000-08-24 | Eagle-Picher Industries, Inc. | Enrichment of silicon or germanium isotopes |
RU2170609C1 (ru) | 2000-02-17 | 2001-07-20 | Закрытое акционерное общество "ЭЛЛИНА-НТ" | Способ разделения кремния на фракции, обогащенные тяжелым и легким изотопами |
-
2006
- 2006-09-08 CN CN2006800329135A patent/CN101257964B/zh not_active Expired - Fee Related
- 2006-09-08 WO PCT/JP2006/317809 patent/WO2007029797A1/ja active Application Filing
- 2006-09-08 ES ES06797665T patent/ES2377773T3/es active Active
- 2006-09-08 KR KR1020087008389A patent/KR101229593B1/ko not_active IP Right Cessation
- 2006-09-08 GE GEAP200610621A patent/GEP20104965B/en unknown
- 2006-09-08 RU RU2008113376/12A patent/RU2399409C2/ru not_active IP Right Cessation
- 2006-09-08 US US12/065,361 patent/US7943107B2/en not_active Expired - Fee Related
- 2006-09-08 AU AU2006288190A patent/AU2006288190B2/en not_active Ceased
- 2006-09-08 EP EP06797665A patent/EP1938888B1/en not_active Expired - Fee Related
-
2008
- 2008-02-26 ZA ZA200801807A patent/ZA200801807B/xx unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6146601A (en) | 1999-10-28 | 2000-11-14 | Eagle-Picher Industries, Inc. | Enrichment of silicon or germanium isotopes |
JP2003053153A (ja) * | 2001-08-20 | 2003-02-25 | Japan Atom Energy Res Inst | レーザーによるシリコン同位体の高効率分離・濃縮法 |
Non-Patent Citations (1)
Title |
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See also references of EP1938888A4 |
Also Published As
Publication number | Publication date |
---|---|
AU2006288190A1 (en) | 2007-03-15 |
RU2399409C2 (ru) | 2010-09-20 |
US20090136407A1 (en) | 2009-05-28 |
CN101257964A (zh) | 2008-09-03 |
EP1938888A4 (en) | 2009-11-11 |
KR101229593B1 (ko) | 2013-02-04 |
EP1938888B1 (en) | 2011-11-16 |
US7943107B2 (en) | 2011-05-17 |
EP1938888A1 (en) | 2008-07-02 |
GEP20104965B (en) | 2010-04-26 |
ES2377773T3 (es) | 2012-03-30 |
RU2008113376A (ru) | 2009-10-20 |
AU2006288190B2 (en) | 2010-08-05 |
CN101257964B (zh) | 2011-07-20 |
ZA200801807B (en) | 2008-10-29 |
AU2006288190A2 (en) | 2008-09-25 |
KR20080043404A (ko) | 2008-05-16 |
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