GB685360A - Improvements in the treatment of uranium - Google Patents

Improvements in the treatment of uranium

Info

Publication number
GB685360A
GB685360A GB1305640A GB1305640A GB685360A GB 685360 A GB685360 A GB 685360A GB 1305640 A GB1305640 A GB 1305640A GB 1305640 A GB1305640 A GB 1305640A GB 685360 A GB685360 A GB 685360A
Authority
GB
United Kingdom
Prior art keywords
uranium
neutrons
cadmium
atoms
hydrogen
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.)
Expired
Application number
GB1305640A
Inventor
Hans Heinrich Von Halban
Lew Kowarski
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.)
IMP TRUST FOR ENCOURAGEMEN
Original Assignee
IMP TRUST FOR ENCOURAGEMEN
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
Application filed by IMP TRUST FOR ENCOURAGEMEN filed Critical IMP TRUST FOR ENCOURAGEMEN
Priority to GB1305640A priority Critical patent/GB685360A/en
Publication of GB685360A publication Critical patent/GB685360A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Abstract

685,360. Nuclear reactors. IMPERIAL TRUST FOR THE ENCOURAGEMENT OF SCIENTIFIC & INDUSTRIAL RESEARCH. July 21, 1941 [Aug. 15, 1940; April 2, 1941], Nos. 13056/40 and 4427/41. Class 39(iv) U<SP>235</SP> is concentrated by bombarding uranium or uranium compounds with neutrons in the presence of a moderating element (e.g. H<SP>1</SP>, H<SP>2</SP>, He or C) and of an element (e.g. Cd or Dy) strongly absorbent of thermal neutrons, but non-absorbent of resonant neutrons, thereby promoting the reaction U<SP>238</SP>+n# 94 X<SP>239</SP>. Then uranium (enriched in isotope 235) is separated chemically. Preferably a mixture of uranium, water (or other hydrogen compound) and cadmium surrounds a neutron source comprising U<SP>233</SP>, U<SP>235</SP> and/or 94 X<SP>239</SP>. Compounds of uranium and cadmium may be used in lieu of the metals themselves. The number of 91 X<SP>239</SP> atoms produced in the outer system must at least equal the number of 94 X<SP>239</SP> or U<SP>233</SP> or U<SP>235</SP> atoms consumed in the inner system. When the mixture contains equal numbers of uranium, hydrogen and cadmium atoms, destruction of U<SP>238</SP> to produce 91 X<SP>239</SP> is stated to be about 1500 times faster than destruction of U<SP>235</SP>. When the neutron source supplies 1.5 neutrons per fission to the outside system, the hydrogen/uranium ratio should not exceed 1; and when 2 neutrons per fission are supplied this ratio rises to 2.
GB1305640A 1940-08-15 1940-08-15 Improvements in the treatment of uranium Expired GB685360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1305640A GB685360A (en) 1940-08-15 1940-08-15 Improvements in the treatment of uranium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1305640A GB685360A (en) 1940-08-15 1940-08-15 Improvements in the treatment of uranium

Publications (1)

Publication Number Publication Date
GB685360A true GB685360A (en) 1952-12-31

Family

ID=10015989

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1305640A Expired GB685360A (en) 1940-08-15 1940-08-15 Improvements in the treatment of uranium

Country Status (1)

Country Link
GB (1) GB685360A (en)

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