The Main Technological Characteristics of Apparatus for Industrial Radiochemical Processes, in Particular Ethylene Polymerization
Creators
- 1. Karpov Physicochemical Institute, Moscow, USSR (Russian Federation)
Description
The paper gives a general review of some of the main technological features of apparatus, for instance spherical apparatus, for industrial radiochemical processes. A method is proposed for estimating the effectiveness of apparatus of any given construction by comparing it with the output of an infinitely large apparatus having the same radiation source. An account is given of the technological features of an apparatus for radio-polymerizing ethylene at 200 atmospheres and 25oC1 with a rodshaped gamma-radiation source (Co60) of variable activity. This apparatus can be designed to suit the mean dose rate which the power efficiency of the apparatus allows. It is shown that the yield, Q, of the apparatus is, other things being equal, a constant ration of the power, W0, of the gamma-radiation of the apparatus. In the apparatus reviewed, Q ∼ W00,5. (author)
Abstract (French)
Le memoire contient un expose general des caracteristiques techniques essentielles des appareils, par exemple d'un appareil du type spherique, pour l'application industrielle de reactions chimiques sous rayonnement. Le memoire propose une methode pour evaluer l'efficacite d'appareils de tous types en comparant la productivite de chaque modele avec celle d'un appareil infiniment grand, alimente par une source de rayonnement identique. Le memoire indique le calcul des caracteristiques techniques de l'appareil destine a la polymerisation sous rayonnement de l'ethylene (pression : 200 atmospheres, temperature: 25oC2 avec une source allongee de rayonnement gamma Co60 pour diverses activites. Un appareil de ce type peut etre calcule selon les valeurs moyennes de l'intensite des doses, determinees selon la valeur du coefficient d'efficacite totale energetique de l'appareil. On constate que la productivite (Q) de l'appareil, toutes choses egales d'ailleurs, est puissance de l'intensite (W0) du rayonnement gamma de l'appareil. Pour l'appareil considere, Q ∼ W00'5. (author)Abstract (Spanish)
Se propone un metodo de evaluacion de la efectividad de los aparatos, cualquiera que sea su construccion, comparandola con la productividad de un aparato infinitamente grande que tenga la misma fuente de radiaciones. Se indican las caracteristicas tecnologicas de un aparato destinado a la polimerizacion del etileno mediante radiaciones (a presion de 200 atmosferas y temperatura de 25o C4 empleando como fuente principal radiaciones gamma de cobalto-60 a distintas actividades. Se pueden calcular los datos tecnicos de tal aparato segun el valor medio de la intensidad de las dosis, fijado segun la magnitud del coeficiente de rendimiento energetico del aparato. Se indica en el trabajo que, siendo las demas condiciones iguales, la productividad (Q) del aparato es funcion exponencial de la intensidad (W0) de las radiaciones gamma del mismo. Para el aparato que se estudia en el trabajo la formula es: Q∼W00'5. (author)Abstract (Russian)
V doklade rassmotreny v obshchem vide otdel'nye naibolee vazhnye tekhnologicheskie kharakteristiki apparatov (na primere sfericheskogo apparata) dlya provedeniya radiatsionno-khimicheskikh protsessov v promyshlennom masshtabe. Predlozhen metod otsenki ehffektivnosti apparata lyuboj konstruktsii putem sravneniya s proizvoditel'nost' yu beskonechno bol'shogo apparata, imeyushchego tot zhe istochnik izlucheniya. Priveden raschet tekhnologicheskoj kharakteristiki apparata dlya radiatsionnoj polimerizatsii ehtilena (davlenie 200 atm, temperatura 25o C3 so sterzhnevym istochnikom gamma-izlucheni ya Co60 razlichnoj aktivnosti. Takoj apparat mozhno rasschityvat' po srednim znacheniyam moshchnostej doz, opredelyaemym po velichine ehnergeticheskogo KPD apparata. Pokazano, chto proizvoditel'nost'apparata (Q), pri prochikh ravnykh usloviyakh, yavlyaetsya stepennoj funktsiej moshchnosti (W0) gamma-izlucheniya apparata. Dlya rassmotrennogo apparata : Q ∼ W00,5. (author)Additional details
Additional titles
- Original title (English)
- Caracteristique techniques fondamentals des appareils pour l'application industrielle de reactions chimiques sous rayonnement (notamment la polymerisation de l'ethylene ); Osnovnye tekhnologicheskie kharakteristiki apparatov dlya provedeniya radiatsionno-khimi-cheskikh protsessov (v chastnosti, dlya polimerizatsii ehtilena) v promyshlennom masshtabe; Principales caracteristicas tecnologicas de los aparatos para la aplicacion industrial de reacciones radioquimicas
Publishing Information
- Publisher
- IAEA
- Imprint Place
- Vienna (International Atomic Energy Agency (IAEA))
- Imprint Title
- Large radiation sources in industry. Proceedings of a conference on the application of large radiation sources in industry. V. I
- Imprint Pagination
- 492 p.
- Series
- Proceedings Series
- Journal Page Range
- p. 15-30
- ISSN
- 0074-1884
Conference
- Title
- Conference on the application of large radiation sources in industry
- Dates
- 8-12 Sep 1959
- Place
- Warsaw (Poland)
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 43113090
- Subject category
- S07: ISOTOPES AND RADIATION SOURCES; S22: GENERAL STUDIES OF NUCLEAR REACTORS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- DOSE RATES; EFFICIENCY; EQUIPMENT; ETHYLENE; GAMMA RADIATION; POLYMERIZATION; RADIATION SOURCES; RADIOCHEMISTRY
- Descriptors DEC
- ALKENES; CHEMICAL REACTIONS; CHEMISTRY; ELECTROMAGNETIC RADIATION; HYDROCARBONS; IONIZING RADIATIONS; ORGANIC COMPOUNDS; RADIATIONS
Optional Information
- Notes
- 5 figs., 9 refs.
- Secondary number(s)
- STI/PUB--12(Vol.1)