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Researches on vanadium and its compounds; Recherches sur le Vanadium et ses composes

Thesis/Dissertation:

Abstract

In this research thesis, the author proposes a new study of the action of some reduction agents on two groups of vanadium compounds, oxides and chlorides. Thus, he reports the study of the circumstances of reduction of vanadium oxides by carbon and of vanadium carburization from these compounds. He also reports the determination of the composition of vanadium melts obtained at high temperatures (either in a vacuum furnace or with an electric arc furnace). In order to determine in which conditions the processing of vanadium oxides could produce the pure metal, the author studied the action of calcium and magnesium on the vanadium pentoxide and trioxide. The second part of the thesis addresses the preparation of pure vanadium from vanadium anhydride chlorides. Then, the author reports the development of processes which could easily produce powdered vanadium [French] Nous nous sommes propose de reprendre l'etude de l'action de quelques reducteurs sur les deux groupes de composes du vanadium, oxydes et chlorures. Nous avons ete ainsi amene a preciser les circonstances de la reduction des oxydes de vanadium par le carbone et de la carburation du vanadium a partir de ceux-ci, puis a determiner la constitution des fontes de vanadium obtenues a  More>>
Authors:
Publication Date:
Jun 03, 1937
Product Type:
Thesis/Dissertation
Report Number:
FRNC-TH-9293
Resource Relation:
Other Information: 64 refs.; Available from the INIS Liaison Officer for France, see the 'INIS contacts' section of the INIS website for current contact and E-mail addresses: http://www.iaea.org/inis/Contacts/; These Docteur Es Sciences Physiques
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ANHYDRIDES; CALCIUM; CARBON; CARBURIZATION; CHEMICAL COMPOSITION; CHEMICAL PROPERTIES; MAGNESIUM; MELTING; METALLOGRAPHY; MICROSTRUCTURE; PURIFICATION; REDUCING AGENTS; REDUCTION; VANADIUM; VANADIUM CHLORIDES; VANADIUM OXIDES
OSTI ID:
22444119
Research Organizations:
Faculte des Sciences de l'Universite de Paris (France); Faculte de Pharmacie, Paris (France); Caisse Nationale de la Recherche Scientifique (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR1503583013660
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
99 page(s)
Announcement Date:
Mar 10, 2016

Thesis/Dissertation:

Citation Formats

Morette, Andre. Researches on vanadium and its compounds; Recherches sur le Vanadium et ses composes. France: N. p., 1937. Web.
Morette, Andre. Researches on vanadium and its compounds; Recherches sur le Vanadium et ses composes. France.
Morette, Andre. 1937. "Researches on vanadium and its compounds; Recherches sur le Vanadium et ses composes." France.
@misc{etde_22444119,
title = {Researches on vanadium and its compounds; Recherches sur le Vanadium et ses composes}
author = {Morette, Andre}
abstractNote = {In this research thesis, the author proposes a new study of the action of some reduction agents on two groups of vanadium compounds, oxides and chlorides. Thus, he reports the study of the circumstances of reduction of vanadium oxides by carbon and of vanadium carburization from these compounds. He also reports the determination of the composition of vanadium melts obtained at high temperatures (either in a vacuum furnace or with an electric arc furnace). In order to determine in which conditions the processing of vanadium oxides could produce the pure metal, the author studied the action of calcium and magnesium on the vanadium pentoxide and trioxide. The second part of the thesis addresses the preparation of pure vanadium from vanadium anhydride chlorides. Then, the author reports the development of processes which could easily produce powdered vanadium [French] Nous nous sommes propose de reprendre l'etude de l'action de quelques reducteurs sur les deux groupes de composes du vanadium, oxydes et chlorures. Nous avons ete ainsi amene a preciser les circonstances de la reduction des oxydes de vanadium par le carbone et de la carburation du vanadium a partir de ceux-ci, puis a determiner la constitution des fontes de vanadium obtenues a haute temperature, soit au four a vide, soit au four a arc. D'autre part, en vue de determiner dans quelles conditions le traitement des oxydes de vanadium pourrait conduire au metal pur, nous avons repris et complete des travaux anterieurs concernant l'action du calcium et du magnesium sur le pentoxyde ou eventuellement le trioxyde de vanadium. Une seconde partie de notre these a ete consacree a la preparation du vanadium pur a partir des chlorures anhydres de vanadium. Nous nous sommes attache a trouver le mode operatoire le plus favorable pour l'obtention de chacun d'eux. Il nous a ete donne ainsi l'occasion de preciser certaines de leurs proprietes physiques et chimiques. Puis, a la suite d'essais systematiques, nous avons etabli un procede susceptible de fournir aisement le vanadium pur pulverulent. Enfin, au moyen du metal obtenu par cette derniere methode, nous avons etudie quelques proprietes du vanadium. L'expose de nos travaux comportera donc trois chapitres: I. Reduction des oxydes de vanadium. A. Action du carbone; carbure de vanadium. B. Action du calcium et du magnesium. II. Reduction des chlorures anhydres de vanadium. A. Preparation et etude de quelques proprietes des chlorures de vanadium. B. Action du magnesium et du calcium. III. Contribution a l'etude des proprietes du vanadium. (auteur)}
place = {France}
year = {1937}
month = {Jun}
}