Zobrazeno 1 - 10
of 82
pro vyhledávání: '"R.R. Klimpel"'
Publikováno v:
International Journal of Mineral Processing. 58:1-13
Though xanthogen formates have long been used as sulfide mineral collectors, they have been largely ignored by the research community. The flotation of chalcopyrite, chalcocite, covellite, bornite and pyrite with this class of collector has been eval
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03930062f884f37461d95f496aee959d
https://doi.org/10.1016/s0301-7516(99)00068-x
https://doi.org/10.1016/s0301-7516(99)00068-x
Autor:
R.R Klimpel
Publikováno v:
Powder Technology. 105:430-435
The wet grinding of materials in most industrial grinding devices can be significantly influenced by controlled changes in slurry rheology. Thus, pulp density, the level of fines present, and the pulp chemistry conditions are all very important to ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a904f758d646fa0d4f4b9f3e55e8eec
https://doi.org/10.1016/s0032-5910(99)00169-2
https://doi.org/10.1016/s0032-5910(99)00169-2
Publikováno v:
Mining, Metallurgy & Exploration. 16:27-35
Fourteen reagents that are potentially capable of chelating with a metal ion on the surface of the major copper sulfide minerals and pyrite were evaluated for their effectiveness in floating these sulfides. The reagents studied fall into the classes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bf6279b496beea2f8bfa821c5ac5a77
https://doi.org/10.1007/bf03402853
https://doi.org/10.1007/bf03402853
Autor:
R.R. Klimpel
Publikováno v:
International Journal of Mineral Processing. :133-142
This paper summarizes some of the author's industrial scale experiences in modifying grinding environments for improved downstream product performance. In many grinding applications, the choice of an appropriate grinding environment is as important a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5902f63a29ffcf5ebde023abdcff1fd
https://doi.org/10.1016/0301-7516(95)00024-0
https://doi.org/10.1016/0301-7516(95)00024-0
Publikováno v:
International Journal of Mineral Processing. 42:225-240
The flotation process may be considered an interactive system consisting of many chemical, operational, and equipment variables. Changing any one of these variables causes an overall system response change. This study examines the effects of simultan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2bb385c5ae639528582fcfe5f057595
https://doi.org/10.1016/0301-7516(94)00029-8
https://doi.org/10.1016/0301-7516(94)00029-8
Autor:
R.R. Klimpel, Simon Isherwood
Publikováno v:
International Journal of Mineral Processing. 33:369-381
This paper discusses the nature of frother chemical structure on the industrial scale use of froth flotation. The difficulty in making frother performance predictions based on strictly fundamental reasoning and/or laboratory batch flotation cell data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::060a03aa503de5c7f5bde5858ebf041f
https://doi.org/10.1016/0301-7516(91)90064-p
https://doi.org/10.1016/0301-7516(91)90064-p
Autor:
Leonard G. Austin, R.R. Klimpel
Publikováno v:
International Journal of Mineral Processing. 4:7-32
This paper describes a mathematical approach for calculating parameters relating specific rates of breakage and breakage products distribution from batch grinding a known feed for several grinding times. Knowledge of such parameters leads to improved
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3148a9a220c2e4222a73da2629fa598
https://doi.org/10.1016/0301-7516(77)90028-x
https://doi.org/10.1016/0301-7516(77)90028-x
Autor:
R.R. Klimpel, Leonard G. Austin
Publikováno v:
Powder Technology. 34:121-130
In this first report, we present a preliminary model based on the simple binary system of component B occluded in a matrix of component A, for the case where fracture planes can pass with equal ease through A or B. By assuming that the volume fractio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::394c7e1d3af5f72cae7be447f742c201
https://doi.org/10.1016/0032-5910(83)87040-5
https://doi.org/10.1016/0032-5910(83)87040-5
Autor:
Leonard G. Austin, R.R. Klimpel
Publikováno v:
Powder Technology. 41:279-286
The theory of the calculation of the size distribution of the equilibrium mixture of balls in a ball mill is developed. The differential equation is solved for wear laws of the form wear rate per ball ∝ r2 + Δ where r is ball radius. Δ = 0 gives
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46ed7b291f0f9da25353ebe7ea7e0a89
https://doi.org/10.1016/0032-5910(85)80026-7
https://doi.org/10.1016/0032-5910(85)80026-7
Autor:
Leonard G. Austin, R.R. Klimpel
Publikováno v:
Powder Technology. 38:77-91
Computer programs for back-calculation of specific rates of breakage Si from continuous mill data, or batch grinding data, are described. A series of statistical tests to determine the statistically acceptable ranges of values are presented. The most
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f85f6619b1d8af42c4db78b39c876839
https://doi.org/10.1016/0032-5910(84)80036-4
https://doi.org/10.1016/0032-5910(84)80036-4