Results 1 to 10 of about 29,721 (224)
INNOVATIVE ECO-EFFICIENT BIOHYDROMETALLURGICAL PROCESSES FOR THE RECOVERY OF STRATEGIC AND RARE METALS FROM PRIMARY AND SECONDARY RESOURCES [PDF]
, 2018 The conventional pyrometallurgical route for winning of metals is increasingly confronted with a number of challenges which include the necessity to exploit more complex and deeper deposits, arsenic containing deposits, increased ...
Schlömann, M.
core
Communications Earth & EnvironmentChalcopyrite (CuFeS2) is the main source of copper worldwide and is usually formed at high temperature. Its occurrence at low temperature is poorly documented, and the mechanisms controlling its formation remain uncertain.
Andrey M. Ilin +15 more
doaj +1 more source
Disseminated sulphide mineralisation at Garbh Achadh, Argyllshire, Scotland [PDF]
, 1978 A brief investigation of low-grade copper mineralisation associated with a small, talc-alkaline porphyry intrusion of Caledonian age is described.
Ellis, R.A., Fortey, N.J., Marsden, G.R.
core
MetalsMechanical activation significantly enhances the leaching of chalcopyrite, a process that is fundamentally electrochemical in nature. Thus, a comprehensive understanding of its impact on the electrochemical behavior of chalcopyrite in leaching systems is
Yuxin Li +3 more
doaj +1 more source
Minerals in Afghanistan : the potential for gold [PDF]
, 2006 Gold has been worked in Afghanistan for centuries from many areas including Takhar province in the north and from Ghazni, Zabul, and Kandahar provinces in the south-west of the country.
Benham, Antony John, Coats, Stan
core
The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 1962 Thermal transformation of chalcopyrite in argon atmosphere has been studied in temperature from 200°up to 1000°C, using the thermogravimetric, X-ray analyes and erflected microscopic examination. Both of the thermogravimetric and differential thermal analyses curves suggest some endouthermic eraction or transformation, as formerly recognized, at 540 ...
openaire +2 more sources
FAHLORES OF ORE FACIES OF THE YUBILEYNOE MASSIVE SULFIDE DEPOSIT (SOUTH URALS) [PDF]
Минералогия, 2018 The Ag-, Te-, Mn, Pb-bearing tennantite and minerals of the tennantite-tetrahedrite series are recognized in chalcopyrite-pyrite-sphalerite-talc-calcite smoker chimneys, bornite- and chalcopyrite-rich and quartz-carbonate-hematite diagenites and ...
A.S. Tseluyko +3 more
doaj
Kuangchan zonghe liyongIn view of the problems of environmental pollution and large consumption of reagents in traditional chalcopyrite depressant, it is of great significance to develop new depressant to achieve effective separation of copper and molybdenum.
Wentao XU +3 more
doaj +1 more source
Modeling chalcopyrite leaching kinetics
, 2007 Chalcopyrite (CuFeS2) is the most abundant of the copper sulfides and also one of the most refractory for leaching. Several processing routes have been proposed to overcome drawbacks associated with environmental problems related to copper extraction from this mineral.
openaire +1 more source
International Journal of Mining Science and TechnologyAchieving efficient flotation separation of chalcopyrite and galena while maintaining environmental friendliness poses a challenge. This study utilized the environmentally friendly copolymer acrylic acid-2-acrylamide-2-methylpropanesulfonic acid (AA/AMPS)
Siqi Yang +6 more
doaj +1 more source