FR2394320A1 - Photochemical sepn. of uranium isotope - by selective excitation using volatile uranyl complexes stable in vapour phase (SW 9.1.78) - Google Patents

Photochemical sepn. of uranium isotope - by selective excitation using volatile uranyl complexes stable in vapour phase (SW 9.1.78)

Info

Publication number
FR2394320A1
FR2394320A1 FR7718517A FR7718517A FR2394320A1 FR 2394320 A1 FR2394320 A1 FR 2394320A1 FR 7718517 A FR7718517 A FR 7718517A FR 7718517 A FR7718517 A FR 7718517A FR 2394320 A1 FR2394320 A1 FR 2394320A1
Authority
FR
France
Prior art keywords
sepn
vapour phase
photochemical
selective excitation
esp
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.)
Granted
Application number
FR7718517A
Other languages
French (fr)
Other versions
FR2394320B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DE2726979A priority Critical patent/DE2726979C2/en
Application filed by Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to FR7718517A priority patent/FR2394320A1/en
Publication of FR2394320A1 publication Critical patent/FR2394320A1/en
Application granted granted Critical
Publication of FR2394320B1 publication Critical patent/FR2394320B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/04—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
    • C07D307/06—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic Table
    • C07F5/003—Compounds containing elements of Groups 3 or 13 of the Periodic Table without C-Metal linkages

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Lasers (AREA)

Abstract

Sepn. comprises irradiating a uranyl cpd. (I) at 810-1116 cm-1 so as to produce a selectively excited constituent of (I), enriched in one isotope, and then sepg. this enriched constituent. (I) contains >=2 isotopes and is present in the vapour phase at a vapour pressure of >=0.1 Torr. Pref. (I) is irradiated with a CO2 laser at 200 (esp. 130) degrees C. The sepd. enriched component is pref. converted to a separable prod. by irradiation with visible or UV light (esp. from a second laser) or by using an IR laser. Pref. (I) are the new cpds. of formula UO2 (hfacac)2L (where hfacac is hexafluoroacetylacetone and L is a ligand, esp. THF). (I) can be evaporated as a stable monomer, has suitable vapour pressure at low temp. and has no IR absorption which can interfere with the UO2+ excitation. Selective excitation of U235 or U238 is possible.
FR7718517A 1977-06-15 1977-06-16 Photochemical sepn. of uranium isotope - by selective excitation using volatile uranyl complexes stable in vapour phase (SW 9.1.78) Granted FR2394320A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2726979A DE2726979C2 (en) 1977-06-15 1977-06-15 Process for the separation of uranium isotopes and volatile uranyl compounds for its implementation
FR7718517A FR2394320A1 (en) 1977-06-15 1977-06-16 Photochemical sepn. of uranium isotope - by selective excitation using volatile uranyl complexes stable in vapour phase (SW 9.1.78)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2726979A DE2726979C2 (en) 1977-06-15 1977-06-15 Process for the separation of uranium isotopes and volatile uranyl compounds for its implementation
FR7718517A FR2394320A1 (en) 1977-06-15 1977-06-16 Photochemical sepn. of uranium isotope - by selective excitation using volatile uranyl complexes stable in vapour phase (SW 9.1.78)

Publications (2)

Publication Number Publication Date
FR2394320A1 true FR2394320A1 (en) 1979-01-12
FR2394320B1 FR2394320B1 (en) 1982-07-02

Family

ID=25772158

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7718517A Granted FR2394320A1 (en) 1977-06-15 1977-06-16 Photochemical sepn. of uranium isotope - by selective excitation using volatile uranyl complexes stable in vapour phase (SW 9.1.78)

Country Status (2)

Country Link
DE (1) DE2726979C2 (en)
FR (1) FR2394320A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031190A1 (en) * 1979-12-21 1981-07-01 Exxon Research And Engineering Company Method of separating isotopes
EP0031634A1 (en) * 1979-12-21 1981-07-08 Exxon Research And Engineering Company Method of separating isotopes

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH618956A5 (en) * 1978-01-01 1980-08-29 Exxon Research Engineering Co A composition containing a uranyl ion
US4321116A (en) * 1979-02-22 1982-03-23 Exxon Research & Engineering Co. Isotope separation process
US4324766A (en) * 1979-09-12 1982-04-13 Exxon Research & Engineering Co. Method of separating isotopes of uranium employing UO2 (hfacac)2.L with an improved photon efficiency
US4362669A (en) * 1980-02-25 1982-12-07 Exxon Research And Engineering Co. Uranyl compounds employing a strong base

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951768A (en) * 1971-02-05 1976-04-20 Karl Gurs Method of separating isotopes
US4097384A (en) * 1976-03-22 1978-06-27 Northwestern University Process for uranium isotope separation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951768A (en) * 1971-02-05 1976-04-20 Karl Gurs Method of separating isotopes
US4097384A (en) * 1976-03-22 1978-06-27 Northwestern University Process for uranium isotope separation

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CA1971 *
EXBK/71 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031190A1 (en) * 1979-12-21 1981-07-01 Exxon Research And Engineering Company Method of separating isotopes
EP0031634A1 (en) * 1979-12-21 1981-07-08 Exxon Research And Engineering Company Method of separating isotopes

Also Published As

Publication number Publication date
DE2726979A1 (en) 1978-12-21
DE2726979C2 (en) 1985-03-07
FR2394320B1 (en) 1982-07-02

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ST Notification of lapse