nickel sulfide versus laterite the hard sustainabilitysulfide or laterite (oxide) resources. historically production has been dominated by sulfide ores but future production is increasing shifting to laterite ores. the principal reason for this historically is that sulfide ores are easier to process, through conventional mining, smelting and refining, compared to laterite ores whichwhy are the sulfide ores generally converted to an oxidejun 27, · the concentrated ore must be converted into a form which is suitable for reduction. usually the sulphide ore is converted to oxide before reduction. oxides are easier to reduce. thus isolation of metals from concentrated ore involves two major steps viz., (a) conversion to oxide, and (b) reduction of the oxide to metal.list of ores and their names sulphide orecompounds of certain metals are reduced to metal without using any additional reducing agent. ores of cu, pb, hg etc. their sulphide ores are partially roasted to give some oxide. this oxide is now reduced to the metal by the remaining sulphide ore at elevated temperatures in the absence of air. the process is known as self reduction.copper ore types sulfides versus oxides nasdaqapr 23, · these oxide ores are usually leached by sulfuric acid to liberate the copper minerals into a solution of sulfuric acid laden with copper sulfate in solution. the copper sulfate solution (the...effect of grinding chemistry on the sulphidisationoxidised sulphide mineral and oxide mineral were studied separately in the first approach. the oxidised sulphide ore was studied by artificially oxidising a copper sulphide ore to various states during months. for each oxidation state, the effect of chemistry wasmixed sulphideoxide lead and zinc ores problems andaug 01, · in many parts of the world, significant deposits of these mixed sulphideoxide lead and zinc ores are found with the main sulphide and/or oxidised ore bodies. because of their complex mineralogy, these ores are very difficult to deal with from a mineral processing point of view and they are very often left untreated as a result of the metallurgical difficulties encountered in extracting lead and zinc from them.cited by 72flotation of mixed copper oxide and sulphide minerals3 rows· mar 01, 09· by blending the oxide and sulphide ores together, the graderecovery relationship improves ascited by 2oxide sulfide copper ores leachingapr 26, · if the oxide and sulfide minerals leach independently then the recovery/time curve for each mineral can be algebraically added to obtain a recovery/time curve for the ore. during this period of time both the sulfuric acid and the ferric iron in the leach solution are completely consumed as the leach solution passes through the column.estimated reading time 7 mins
extraction of metals from ores, definition, meaning, examplesjun 23, · the oxide ores can be directly converted into metals by heating, whereas the carbonate or sulphide ores should first be converted into metal oxide. the concentrated ores can be converted into metal oxide by using calcination or roasting based on the nature of the ore.mining and extraction oxide ores processes forextraction of sulfide ores is covered in more detail in copper mining and extraction sulfide ores , but is introduced here because an important byproduct of this process is used for the extraction of oxide ores. pyroprocessing sulfide ores provides acid for leaching. the process used to treat sulfide copper ores begins at the mine site, where the copperbearing minerals are physically separated from the rest of the rock. theheap leaching oxide and sulfide copper oresexperimentalores used in this studyassaying of sampleslaboratory studiesexperimental datafield studiesestimation of heap leaching results from laboratory studies on crushed ornclusionsacknowledgementsdetermination of free acidleaching studies were conducted on coarse oxide and sulfide copper ores in small laboratory columns and in large concrete columns in the field. these studies were designed to determine the influence of various chemical and physical parameters on heap leaching and to establish a correlation between laboratory and field testing.see more on 9metallurgist estimated reading time 9 minssupergene oxidation of copper deposits zoning andcopper content if the copper oxide zone developed is to be of potential ore grade, and requires also that removal of copper be minimal. distinction between these protore environments is signiﬁcant in exploration for copper oxide and supergene sulfide enrichment targets because prospects dominated by reactive rock units are likelywhich of the following factors is of no significance forjul 07, · which of the following factors is of no significance for roasting sulphide ores to the oxide and not subjecting the sulphide ores in carbon reduction directly ? updated on 77 to keep watching this video solution for the recovery of oxide copper minerals from a complexit treats an ore which is a mixture of sulphide and oxide copper minerals. in the flotation of mixed sulphide oxide ores, the sulphide minerals are floated first, then followed by aflotation of mixed oxide sulphide coppercobalt mineralsthree cobaltbearing oxide minerals are observed in the mixed ore, i.e. heterogenite, kolwezite and cuproasbolane, while carrollite is the only cobaltbearing sulphide mineral. a twostage rougherscavenger flotation process is used in which sulphides are extracted from the ore first.consider the following statements. roasting is carried outthis process is mainly used for sulphide ores to get the corresponding oxides, as the extraction of metal is easier from oxides. impurities like as and s are removed be roasting. in the sulphating roasting the sulphide ore is not converted into oxide but into soluble sulphate such as c u s o 4 and f e s o 4 .
copper ore types sulfides vs. oxides an investor'snov 10, · there are two main types of copper ore of interest copper oxide ores and copper sulfide ores. both ore types can be economically mined, but they are processed inreviews 5wo05a1 flotation circuit for oxide and sulfidea method of extracting targeted metallic minerals from ores that contain sulfide metallic minerals along with oxide minerals, carbonate minerals, silicate minerals, halide minerals or combinations thereof. in the method, an ore slurry containing the metallic mineral in oxide, carbonate, silicate or halide form is provided. the slurry is activated by adding sodium thiosulfate and sodium9.2. caveman chemistry handson projects in chemicalthe oxide and carbonate ores are smelted by very similar reactions, as shown in equation 91.charcoal combines with the oxygen in the ore, escaping as carbon dioxide (the bejeezus), and leaving the molten metal behind.mercury and tin are smelted at modest temperatures, lead at higher temperatures, copper and silver at still higher temperatures, and iron at the highest temperature.carbonate and sulphide ores are usually converted intooct , · carbonates and sulphide ore are usually converted into oxides during the process of extraction because it is easy to extract metal from its oxide ore by reduction reaction when compared to carbonate or sulphide ore. hope this would help you. mark it as brainliest if you like. flotation of mixed copper oxide and sulphidecopper sulphide ores flotation collectors from previous ﬂotation investigations of mixed copper oxide and sulphide minerals using xanthate and mineral processing hydroxamate collectors it was hard to distinguish the impact of the alkyl hydroxamate collector on sul alkyl hydroxamates phide recovery as the sulphide and oxide minerals occurredwhy are the sulfide ores generally converted to an oxidejun 27, · for reduction. usually the sulphide ore is converted to oxide before oxides are easier to reduce. isolation of metals from concentrated ore involves two major steps viz., (a) conversion to oxide, and (b) reduction of the oxide to metal.reviews 2differences in processing sulfide and oxide g oresmar , · apr , · copper oxide ores and copper sulfide ores. jim cramers view of . home g companies there is an important difference.4.8/5(1.4k)