Results 41 to 50 of about 284,803 (228)
Gold ore contains a certain amount of gold, silver, copper, lead, zinc, arsenic, and antimony. Gold needs to be determined after roasting, digestion and enrichment; arsenic and antimony are lost after roasting, while silver, copper, lead, zinc, arsenic ...
Xiao WANG +6 more
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Thermogravimetric and distillation studies on mercury, antimony and arsenic sulfides [PDF]
Thermogravimetric studies were made on naturally occurring sulfides of mercury, antimony and arsenic to determine activation energies and Arrhenius rates of reaction in vacuum and in atmospheres of air and nitrogen. Of the three sulfides only antimony
Rao, P.D., Town, J.W.
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Review of reasearch and technical development focused [PDF]
Treatment of flotation tetrahedrite concentrates produced from the of ore mined in the Rudňany and Rožňava ore deposits is a very complex technological problem. This problem has not been solved succesfuly so far.
Slavkovský Marián
doaj
Deposits of gold-quartz formation in the Priamur province
A description of gold-quartz formation deposits in the Priamur gold province is presented. Prevalence of gold-quartz deposits defines metallogenic profile of the province and presence of numerous rich placers.
V. A. Stepanov, A. V. Mel'nikov
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Critical metals for high-technology applications: mineral exploration potential in the north of Ireland [PDF]
There is global concern about the availability of ‘critical’ metals: those of growing economic importance but vulnerable to supply shortage. Production from domestic resources could contribute to security of supply. However, we have little information on
Lusty, Paul
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The century-old mining development and utilization of antimony (Sb) ore in Xikuangshan (XKS) mine, groundwater antimony pollution has attracted great attention.
Ximeng Sun +5 more
doaj +1 more source
Extraction of gold in a centrifugal field of fluid rotation [PDF]
With the samples of the gold-antimony ore processing products of the Sentachan deposit, flotation experiments were carried out on a laboratory centrifugal flotation machine with peripheral concentrate discharge (CFM) and on a laboratory mechanical ...
Salomatova Svetlana
doaj +1 more source
ANTIMONY LEACHING FROM STIBNITE AND COMPLEX ORE
To shed light on the leaching of Sb from mine wastes containing stibnite, two series of experiments were conducted. In one experiment, polished slabs of a museum-grade stibnite and a mixed-sulfide ore sample containing 28% Sb were subjected to accelerated weathering at 100% humidity and 31-35C for 37-44 days.
Y.T. John Kwong +2 more
openaire +1 more source
Orogenic antimony-gold deposits contribute significantly to the global antimony resource base. China’s orogenic antimony-gold deposits are primarily in southern Tibet.
Yue Su, Xiaoming Sun, Zhengpeng Ding
semanticscholar +1 more source
The abandoned antimony-mines of SE Sardinia: impact on surface waters [PDF]
This study investigates the impact of abandoned Sb-mines on the Flumendosa River, which is the most important water resource in southern Sardinia. Hydrogeochemical surveys carried out in 2005 and 2006 indicated a significant impact of waters flowing ...
BIDDAU, RICCARDO +5 more
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