Sentence examples for ores at a from inspiring English sources
So if copper could be produced from sulphide ores at a mere $880 a tonne without smelting, and nickel at a similarly competitive price, that would be a useful breakthrough.
Rio Tinto and BHP Billiton have traditionally sold the majority of their iron ore at a set price.
Each explosion blasts loose about one million tons of taconite, a mineral rich in iron ore, at a nearby mine.
This is any process in which iron is extracted from ore at a temperature below the melting points of the materials involved.
Now federal prosecutors are battling to have the operations of Mineração Onça Puma – which processes the ore at a plant less than four miles from the territory of the Xikrin – shut down.
Results revealed that uranium can be quantitatively leached from Tahaggart's ore at a temperature of 140 °C, time of 4 h, a particle size of < 300 μm, and a carbonate dosage of 0.08 g/gore.
This paper evaluates the strength and durability of cement mortar using FNS fine aggregate produced by smelting of garnierite ore at a temperature between 1500 and 1600 °C (Rahman et al. 2017).
With wartime shortages of raw materials and many younger men in the armed forces, some bal maidens were temporarily rehired to dress potash ore at a re-opened mine at St Austell, and to re-dress the existing spoil heaps of defunct mines for wolfram and arsenic.
"A great number of our colleagues abandoned positions that they had held very clearly and very publicly for a long time," said Sen. Sheldon Whitehouse (D-R.I ., who was joineD-R.I .n. Jeff Merkley (D-Ore). at a press conference to announce next steps after Republican senators blocked debate on the bill Monday, and then again on Tuesday.
The closing will be completed over the next 16 months, during which time the company will continue to extract and process up to 240,000 troy ounces of developed ore at an average cash cost of $237 per ounce of gold.
INDONESIA'S government concedes that it will cause short-term damage; but on January 12th it went ahead and banned exports of mineral ores, at last implementing a law passed in 2009.
