laterite


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laterite

a red soil found in the tropics, from which silica has been leached because of the hot, wet climatic conditions, but which retains the oxides of iron and aluminium.
References in periodicals archive ?
The laterite soil and pressmud collected were air-dried and sieved through 200 mm sieve to remove large and coarse pebbles.
Although a kinetic investigation wasn't performed, the negligible effect of stirring speed on laterite leaching could be stem from dissolution mechanism.
The holes drilled to test laterite targets were spaced at 100m to 200m intervals and drilling was vertical such that widths are indicative of true thickness.
Russell Debney, managing director and CEO of Direct Nickel, said that with the increasing demand for nickel, which is a key component of stainless steel, the future of the world's supply lay in laterites.
The lower part of the Hangu Formation is predominantly laterite / bauxite / kaolinite lithofacies-I, which is overlain by lithofacies-2 (shales / clays), lithofacies-3 (shales, siltstone and sandstone), lithofacies-3a (unfossiliferous limestone), lithofacies-4 (fine-grained sandstone) and lithofacies-5 (arenaceous, bioclast supported limestone).
The ever upward trend in the cost of basic conventional materials like cement and sand has geared concentration of research efforts towards either purely partial or total replacement of ordinary Portland cement (OPC) in concrete on one hand, or the replacement of sand with laterite on the other.
The Laterite areas are being destroyed or converted into infrastructure - sites for mining, waste dumping and similar.
According to the new contract, DMCI Mining Corporation is to manage all financial risk, operations and marketing associated with the mining and sale of the nickel laterite ore and pay ENK a royalty fee on each shipment made.
The types having commercial value include laterite, primary iron and iron sand.
The Kvaerner team has been associated with a significant number of nickel laterite projects and will draw on its extensive experience in this field, as well as an impressive track record for projects in the Philippines.
Tenders are invited for Ripping,Loading And Transportation Of Laterite From Kunkuthy Mine To Tandur Factory
Laterite deposits, on the other hand, are relatively plentiful and generally massive--with some containing almost a billion tons of mineralized material--in addition to being located near the surface and mineable by economical open-pit techniques.