Zobrazeno 1 - 10
of 108
pro vyhledávání: '"A.I.M. Ritchie"'
Autor:
N.J. Fortey
Publikováno v:
Mineralogical Magazine. 68:415-417
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40b7ba249e2244bf99bfbf7320925c65
https://doi.org/10.1180/s0026461x00032497
https://doi.org/10.1180/s0026461x00032497
Autor:
Jörg Matschullat
Publikováno v:
Mineralium Deposita. 39:263-263
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00ef77ccb258b33494e7edff222e54a3
https://doi.org/10.1007/s00126-003-0398-4
https://doi.org/10.1007/s00126-003-0398-4
Autor:
Matschullat, Jörg
Publikováno v:
Mineralium Deposita; 20040301, Vol. 39 Issue: 2 p263-263, 1p
Autor:
A.I.M. Ritchie, J.W. Bennett
Publikováno v:
Hydrometallurgy. 72:51-57
Measurement of the time-dependent change in the oxygen concentration immediately after cessation of aeration is proposed as a method for measuring the sulfide oxidation rate in biooxidation and bioleach heaps. A similar method has been used to determ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::465f90aafc908bd6362371426b1f1ae0
https://doi.org/10.1016/s0304-386x(03)00130-0
https://doi.org/10.1016/s0304-386x(03)00130-0
Publikováno v:
Applied Mathematical Modelling. 26(7):751-770
Basic mathematical equations which describe the processes of sulphide oxidation and gas, heat and water transport in waste rock dumps are presented and discussed. The governing equations account for gas and water flow, vapourisation and condensation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2179eb8fb34f49953698090f43391708
Autor:
G. Pantelis, A.I.M. Ritchie
Publikováno v:
FEMS Microbiology Reviews. 11:183-189
Oxidation of a fraction of the pyrite in gold-bearing pyrite ores before leaching often increases gold recovery rates. There are a number of techniques availablc, one of which is dump oxidation. Commercial viability of such an operation requires a ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f535026d75b61be2d3a32bf5051266c6
https://doi.org/10.1111/j.1574-6976.1993.tb00283.x
https://doi.org/10.1111/j.1574-6976.1993.tb00283.x
Autor:
A.I.M. Ritchie, Garry Pantelis
Publikováno v:
Applied Mathematical Modelling. 16(10):553-560
A model describing the oxidation of mining heaps containing pyrite was presented in an earlier paper and applied to cylindrical heaps. Special attention was given to the interaction of macroscopic transport with the microscopic particle kinetics. We
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca486ddf40a020316a39e10d81a2617d
Autor:
A.I.M. Ritchie, Garry Pantelis
Publikováno v:
Applied Mathematical Modelling. 15:136-143
The oxidation of mining heaps containing pyrite is modelled as a coupling of macroscopic transport and the microscopic particle reaction kinetics. A numerical model is developed incorporating oxygen and heat transport based on the two major mechanism
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28e66ed72178f7a25971031b65c7e62f
https://doi.org/10.1016/0307-904x(91)90022-h
https://doi.org/10.1016/0307-904x(91)90022-h
Autor:
G.B. Davis, A.I.M. Ritchie
Publikováno v:
Applied Mathematical Modelling. 10(5):314-322
A set of equations is formulated to model the way in which oxidation proceeds in a mass of pyritic mine wastes. The model assumes that the oxidation rae is limited by the rate that oxygen is supplied to oxidation sites within the particles comprising
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3af229f58e5ce15ecd835c4c10ebde18
Autor:
G.B. Davis, A.I.M. Ritchie
Publikováno v:
Applied Mathematical Modelling. 11:417-422
An earlier mathematical model, developed to describe oxidation of pyritic material in mine wastes and which assumed just one size for the particles composing the wastes, has been extended to take proper account of the range of particle sizes in the w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b934b845161f8b8e5b6d217652d0539
https://doi.org/10.1016/0307-904x(87)90166-1
https://doi.org/10.1016/0307-904x(87)90166-1