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Autor:
A.N. Buckley, R. Woods
Publikováno v:
Mining, Metallurgy & Exploration. 32:59-61
The formation of hydrogen peroxide from water during the grinding of chalcopyrite in a nitrogen-sparged environment, as reported by Javadi Nooshabadi and Rao (Minerals & Metallurgical Processing, 2013, Vol. 30, No. 4, pp. 212–219), is questioned on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6679b7212545eda7ae29241ae5610a6
https://doi.org/10.1007/bf03402358
https://doi.org/10.1007/bf03402358
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 133:303-311
The oxidation products retained at the surface of galena samples from Broken Hill (lead-rich) and Missouri (sulphur-rich) following mild anodic treatment in acetate solution of pH 4.6 have been determined by X-ray photoelectron spectroscopy (XPS) usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::591b455a70c06a8c520d4304777160d4
https://doi.org/10.1016/s0927-7757(97)00202-1
https://doi.org/10.1016/s0927-7757(97)00202-1
Publikováno v:
Fuel. 77:157-164
A German bituminous coal (Gottelborn) was pyrolysed at high heating rate in a fluidised-bed reactor. The reactor featured a relatively long freeboard heated to similar temperatures to the sand bed, where the nascent volatiles are further thermally cr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c48e6e36ceb0b19113e200266631d334
https://doi.org/10.1016/s0016-2361(97)00136-1
https://doi.org/10.1016/s0016-2361(97)00136-1
Publikováno v:
Symposium (International) on Combustion. 27:3069-3075
Nitrogen release during the oxidation of coal char has been studied in a thermogravimetric analyzer (TGA) at 873 K with 2% O2 in He. Species profiles are determined using Fourier transform infrared (FTIR) spectroscopy (NO, NO2, CO, CO2, N2O, and HCN)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::855d8750675dca5ca929f11b188d5a37
https://doi.org/10.1016/s0082-0784(98)80168-9
https://doi.org/10.1016/s0082-0784(98)80168-9
Autor:
Ronald Woods, A.N. Buckley
Publikováno v:
International Journal of Mineral Processing. 51:15-26
Voltammetric investigations show that chemisorption is the thermodynamically favoured process in the interaction of thiol collectors with sulphide minerals. The potential dependence of chemisorption coverage is in accordance with the Frumkin adsorpti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96802aa19f4569b44d09681bc9ab41c5
https://doi.org/10.1016/s0301-7516(97)00016-1
https://doi.org/10.1016/s0301-7516(97)00016-1
Publikováno v:
International Journal of Mineral Processing. 51:303-313
The monolayer chemisorbed from ethyl xanthate solution at the surface of silver has been analysed ex situ by means of Fourier transform-Raman spectroscopy, and the results compared with the corresponding data for multilayer and bulk silver xanthate.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dda29dc554076d6f7f0d26172782d808
https://doi.org/10.1016/s0301-7516(97)00022-7
https://doi.org/10.1016/s0301-7516(97)00022-7
Autor:
Robert N. Lamb, A.N. Buckley
Publikováno v:
International Journal of Coal Geology. 32:87-106
The application of X-ray photoelectron spectroscopy (XPS) to coal surface characterisation for preparation research is described. Progress towards the acquisition of complementary surface chemical information by time-of-flight secondary ion mass spec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4398cc4bb70ad5fd9b776e5cbe4457d
https://doi.org/10.1016/s0166-5162(96)00032-8
https://doi.org/10.1016/s0166-5162(96)00032-8
Publikováno v:
Organic Geochemistry. 24:389-392
The forms of nitrogen and sulfur in samples of a high-sulfur Chinese (Guiding) bituminous coal have been investigated by means of X-ray photoelectron spectroscopy (XPS). The N 1s and S 2p spectra were in broad agreement with previously reported data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::446d6a5c88f98d32d9b5b8fc54504066
https://doi.org/10.1016/0146-6380(96)00031-9
https://doi.org/10.1016/0146-6380(96)00031-9
Autor:
Ronald Woods, A.N. Buckley
Publikováno v:
Colloids and Surfaces A: Physicochemical and Engineering Aspects. 104:295-305
The adsorption of ethyl xanthate on silver and sulfidised silver surfaces at controlled potentials has been investigated by X-ray photoelectron spectroscopy (XPS). Silver/xanthate and silver sulfide/xanthate were chosen as model systems for investiga
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::408eda108e99fe9ca0ed2048638ef366
https://doi.org/10.1016/0927-7757(95)03279-1
https://doi.org/10.1016/0927-7757(95)03279-1