Zobrazeno 1 - 10
of 50
pro vyhledávání: '"H.G. Linge"'
Autor:
Nicholas J. Welham, H.G. Linge
Publikováno v:
Minerals Engineering. 10:557-566
Arsenopyritic gold is a major source of refractory gold not amenable to roasting. Bio-oxidation is a popular treatment option but is slow and needs careful control of the As content of the feed. Electrochemical slurry oxidation in-situ with chlorine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d9751c74ecc7c8645ad5679ce315411
https://doi.org/10.1016/s0892-6875(97)00035-6
https://doi.org/10.1016/s0892-6875(97)00035-6
Autor:
H.G. Linge
Publikováno v:
Minerals Engineering. 8:1327-1331
Refractory arsenopyritic gold ore is a significant gold resource in the Eastern Goldfields of Western Australia. Bio-oxidation has been used at three locations in the Eastern Goldfields to treat arsenopyritic - pyritic gold concentrates, but the proc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc84ba1dfcdc269e17f3b8c262961244
https://doi.org/10.1016/0892-6875(95)00099-c
https://doi.org/10.1016/0892-6875(95)00099-c
Autor:
H.G. Linge
Publikováno v:
Minerals Engineering. 8:795-806
Natural pyrrhotite (Fe7S8) can be oxidized in alkali (pH 10) at 25°C at potentials above −0.2 V (SCE). The voltammetry of a ground pyrrhotite disc shows current peaks consistent with the formation of a ferric surface phase such as Fe(OH)3 by air o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e99828cd9b66da7589f1e4e1f91cf90
https://doi.org/10.1016/0892-6875(95)00040-w
https://doi.org/10.1016/0892-6875(95)00040-w
Publikováno v:
Minerals Engineering. 7:1213-1241
Australia is now an important gold producer in the world. The nature of Australian gold production is briefly reviewed and the hydrometallurgy of gold extraction is considered. The choice of processing routes for free milling, complex and refractory
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8422d402b2ca42c4e1fa927eca17c4a9
https://doi.org/10.1016/0892-6875(94)90114-7
https://doi.org/10.1016/0892-6875(94)90114-7
Autor:
H.G. Linge, W.G. Jones
Publikováno v:
Minerals Engineering. 6:873-882
Arsenopyritic (FeAsS) gold ore is usually refractory because cyanide solution cannot react with the gold, which is locked within the sulphide lattice. Destruction of the arsenopyrite lattice by electrolytic oxidation is a possible low temperature pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08865d70f3a6d0a0c0b27d747737fb66
https://doi.org/10.1016/0892-6875(93)90060-z
https://doi.org/10.1016/0892-6875(93)90060-z
Publikováno v:
Reactive Polymers. 18:57-65
The extraction of Au(CN) 2 − , Ni(CN) 4 − , Cu(CN) 2 − and Ag(CN) 2 − by polydiallylamine (PDAA) was examined. Crosslinking was found to have a major effect on monovalent/divalent anion selectivity. PDAA with a low degree of crosslinking disp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85076d1fa7907a397db6cc000827d2ae
https://doi.org/10.1016/0923-1137(92)90294-c
https://doi.org/10.1016/0923-1137(92)90294-c
Publikováno v:
Reactive Polymers. 18:47-55
Two different mechanisms appear to govern the adsorption of aurocyanide onto polydiallylamine (PDAA) depending on the extent of protonation of the resin. Below pH 13, the aurocyanide anion reacts with the proton of the resin, losing HCN and resulting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8a3652c34ffad882f8cb671d443cd72
https://doi.org/10.1016/0923-1137(92)90293-b
https://doi.org/10.1016/0923-1137(92)90293-b
Autor:
N.W. Barker, H.G. Linge
Publikováno v:
Hydrometallurgy. 6:311-326
Methylene blue dye adsorbs on chalcopyrite (CuFeS 2 ) powder slurried in aqueous solution. The rate of adsorption is quite low, and at least two days of contact is required to reach a steady state. Adsorption isotherms rise sharply for dye equilibriu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::181b1c0a43bf0c62096f8c843dfb7dad
https://doi.org/10.1016/0304-386x(81)90048-7
https://doi.org/10.1016/0304-386x(81)90048-7
Autor:
H.G. Linge
Publikováno v:
Advances in Colloid and Interface Science. 14:239-250
The status of surface dissolution mechanisms for ionic crystals is surveyed. The mechanisms which best rationalize the unusual form of the experimental rate law for the surface dissolution of ionic crystals are described and compared. These mechanism
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0eb032bd28431f38d032de4029ea47a6
https://doi.org/10.1016/0001-8686(81)85002-6
https://doi.org/10.1016/0001-8686(81)85002-6
Autor:
H.G. Linge, W.G. Jones
Publikováno v:
Hydrometallurgy. 22:231-238
The effect of the presence of a clay-laterite ore pulp (20–40 wt.%) on the adsorption rate of gold on activated carbon has been studied. A substantial reduction in the rate (e.g., by up to an order of magnitude) occurs when the pulp is present. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff1d8ecf2707409af69cacc89876b0dc
https://doi.org/10.1016/0304-386x(89)90053-4
https://doi.org/10.1016/0304-386x(89)90053-4