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o date open cast extraction precisely, although ores with a chemical signature consistent with those
Russia's estimated reserves of ores with a high uranium content are 145,400 tons.
ily available natural deposits of the necessary ores (see above) in the Major Antilles.
rometallurgical purification of cobalt from its ores, as an inorganic pigment, and as a precursor to
ogative, with liberty to dig and carry away the ores thereof, and with other such incidents thereto
These minerals occur in garnierite ores individually and in intimate mixtures.
he mine then experienced problems when sulphide ores containing arsenic and copper were found and th
ary origin, a result of the oxidation of copper ores and arsenopyrite.
ucing low-phosphorus steel from high-phosphorus ores, such as those commonly occurring in the UK and
, arsenic, antimony, or chlorine and in various ores such as argentite (Ag2S) and chlorargyrite ("ho
adily available, often glittering in as natural ores such as pyrite, fools gold, the brassy golden y
are hosted beneath the supergene and oxide zone ores and as yet no processing plant has been built t
Bioleaching of non-sulfidic ores such as pitchblende also uses ferric iron as an
other types of rock material will float on TBE, ores such as sphalerite, galena and pyrite will sink
ientific experiments, he prospected for various ores, weaved asbestos, calculated temperatures, and
te occurs in oxidised portions of veins of lead ores in association with pyromorphite, vanadinite, w
The train would take the ores produced at the mine to the smelters in Eureka.
opper Smelter, is a smelter of sulfurous copper ores in Baia Mare, Romania.
There is also the possibility of stratabound ores to be present.
Sulfidic iron ores can be added to speed up the process and provid
Other copper bearing ores have been noted near Paterson.
method of extracting uranium from its uraninite ores has been replaced in current practice by such p
The lodes are typical lead-zinc ores; they belong to the sphalerite-pyrite-galena-ch
the low neutron activity environment of uranium ores (see below), its presence cannot plausibly be e
It, with beryl, are ores of beryllium.
h mined lithium-bearing spodumene and pegmatite ores near Bessemer City, Gaston County, North Caroli
nd are widely utilized by humans, e.g., as iron ores, pigments, catalysts, in thermite (see the diag
Smaltite occurs in veins with ores of cobalt, nickel, copper and silver.
These ores typically contain cuprite (red copper oxide) an
ing stone, roofing slates from North Wales, and ores, particularly copper ore, from Anglesey.
neficiation of ore concentrates, including iron ores, gold, copper, nickel, zinc, and lead.
dustry as flotation agent for extraction of the ores of copper, nickel, and silver.
British Geological Survey, working on the iron ores of Cumbria.
Huge boilers were installed to roast the ores that each required 2000 tonnes of wood to roast
Molybdenite ores are essentially the only source for rhenium.
er different owners, with lead, barium and zinc ores being extracted.
ng town, because in the vicinity gold and other ores were found and mined.
opper, copper-nickel, gold, lead, and lead-zinc ores obtained from Canada, (such as Cobalt, Ontario)
During the late 19th century, enormously rich ores from Garnet came into Bearmouth to be shipped t
mbling pink feldspar, with franklinite and zinc ores in granular limestone at Franklin Furnace in Ne
Radium ores were highly valued at the time because the pric
guishing metal extracted from nickel-containing ores from hot-worked meteoritic iron.
It is found with lead, silver and gold ores in Hungary, Bohemia and Saxony.
The ores formed hydrothermally in a medium temperature r
n pit mining fleet and the processing of harder ores are impacting the expected production profile f
objectives of the company was Export of mineral ores and Import of essential metals.
als, the methods employed in mining or smelting ores, and in all kinds of manufactures.
known as chalcopyrite, is not known to exist in ores found in the Watchungs.
Ores produced included lead, zinc, copper, silver, a
Dry washing of low grade ores continued intermittently for 100 years, along w
ociated with mineable accumulations of metallic ores of iron, copper, iron, zinc, lead, gold, and se
his indigo blue mineral is ubiquitous in copper ores, it is found in limited abundance and is not an
lachite often results from weathering of copper ores and is often found together with azurite (Cu3(C
rometallurgical purification of nickel from its ores and is used in electroplating of Ni.
Coal was replacing wood in the smelting of ores; and it was because of the demand for coal that
om temperature, and is used to separate mineral ores from its supporting rock by means of preferenti
Other chambersite deposits can be found as ores in Ji County, Tianjin, China, an area that is c
,389,391 Process for beneficiating titaniferous ores Filed: June 28, 1981
e to the mineral, because it was added to metal ores to lower their melting points.
However there was some evidence of copper ores, notably malachite.
,211,755 Process for beneficiating titaniferous ores Filed: March 3, 1975
entury silver began to be extracted from copper ores in massive quantities using the liquation proce
s in Malaysia, China and Thailand turn the rock ores into metals and sell them to components compani
f economic importance including iron, manganese ores, gypsum, mica, limestone and published his stud
It is possible to find ores and minerals in the scrap heaps of the old mine
rtant silver compound in some low-sulfer silver ores from mines in Nevada.
Lindsay Light and Chemical Company It processed ores like monazite to produce elements, including th
ame into extensive use for the concentration of ores is most of the principal mining countries of th
It occurs with ores of nickel, of which it is a product of alterati
a Russian explorer who discovered polymetallic ores in north-eastern Kazakhstan.
It occurs globally in copper ores with notable crystal localities in Butte, Monta
vements in the process for the concentration of ores, the object being to separate metalliferous mat
elopment because of the variety of other useful ores that occur with it, especially in galena, its m
The ores, mostly of copper, tin and lead were brought fr
e the expansion of silver mining to lower-grade ores, Toledo organized an Indian draft labor system,
His analysis of the nickel ores of Pennsylvania led to the use of nickel as a c
pment and extraction of resources such as coal, ores and petroleum.
ve small deposits of iron ore, nonferrous metal ores, dolomite, potash (for fertilizer production),
ement, but a standard quantity used in assaying ores of precious metals; it is 29 1⁄6 grams (short a
The alkaline process of milling uranium ores involves precipitating sodium uranate from the
The reagents required depend on the ores or pretreated material to be processed.
rials are manganese ore, chromite and quartzite ores with principal elements of manganese, chromium
nd facilities for handling dry bulks, minerals, ores, forest products and general cargo.
ther applications, including froth flotation of ores, oil recovery, food preservatives, making dyes.
The K-65 ores were refined as a key part of the Manhattan Pro
ated by white dolomitic marble, proximal to the ores commonly rich in skarn minerals such as tremoli
is as an incrustation on furnace walls in which ores are roasted.
anite occurs as a late-stage mineral with other ores of silver in hydrothermal veins.
massive stephanite and argentite are important ores of silver.
It is not suitable of ores with small size and oil content lower than 5%.
He also describes the methods used to wash the ores using smaller streams on riffle tables to enabl
" in allusion to the "refusal" of cobaltiferous ores to smelt as they are expected to.
nd scraped off the walls of a furnace when zinc ores were smelted), but it is believed that it was u
Shortite is associated with commercial trona ores, and some care must be taken when beneficiating
It is found associated with chromium ores in Spain, Russia, and Quebec in Canada.
uch as tetrabromoethane can be used to separate ores from supporting rocks by preferential flotation
uranium-238 or by neutron capture in molybdenum ores), but technetium is present naturally in red gi
Initially he bought copper ores from the Duke of Devonshire's mine at Ecton Hil
Some of the highest grade uranium ores in the world were found in the Shinkolobwe mine
military ceased purchasing of Canadian uranium ores for the purpose of atomic weapons, and from the
y substances was increased when applied to some ores by the addition of a small amount of acid to th
cluding the grinding and physical separation of ores and the smelting and leaching of base and preci
Cobalt is obtained from ores via the sulfate in some cases.
onya ingots' ratios are consistent with Cypriot ores while the Uluburun ingots fall on the periphery
e British government stopped accepting tungsten ores under the war pricing scheme the mine was force
such as silver, gold, tin and copper from their ores and their purification were also mentioned in t
Tellurides are ingrown into ores containing these precious metals and are also r
Certain iron, uranium and even gold ores are thought to have formed as the result of mic
he heat of the earth's core, which gave rise to ores containing tin, copper, tungsten, lead and othe
cated in different places to the tin and copper ores necessary to make bronze, and as a result tradi
enith in the 1880s, when the majority of copper ores imported to Britain were shipped to Swansea and
Central Italy itself was not rich in metal ores, leading to necessary trade networks in order t
Copper, lead, zinc, and nickel ores are typically present in the sulfide minerals c
Ores are typically processed and concentrated on-sit
Higher-grade ores are usually put through more complex milling pr
Tungsten ores became valuable during World War II, so the own
interested in mining and the transportation of ores and was president of the Morris and Essex Railr
The works made pig iron from locally mined ores as well as a range of cast iron products, mostl
st for mining led to the discovery of telluride ores which were found to be associated with metals.
on of chalcocite, chalcopyrite and other copper ores, on which they often form a superficial coating
The deposition of ores associated with the intrusion gave the area its
metallic compounds found in crushed or powdered ores, but would not so unite with the quartz, or roc
Now you find more mercury when washing the ores than you need to make "amalgam" (mix of gold &
                                                                                                   


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