Examples of 'pressure oxidation' in a sentence
Meaning of "pressure oxidation"
pressure oxidation ~ A hydrometallurgical process used in the mining industry to extract valuable metals from refractory ores. This term is often used in the context of gold and base metal extraction processes that require high temperature and pressure conditions
How to use "pressure oxidation" in a sentence
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pressure oxidation
Thus the pressure oxidation cycle is completed.
Dynamic simulation tool for pressure oxidation process.
Pressure oxidation is one of such technologies gaining interest.
This is a high pressure oxidation.
Pressure oxidation of refractory gold concentrate.
Other gases may also be formed during the pressure oxidation.
The pressure oxidation is preferably carried out in a continuous fashion.
Energy and water recovery from pressure oxidation flash vessel steam.
The pressure oxidation conditions were not identical in all tests.
This allows therefore the lower pressure oxidation reactor to take the form of a tank.
The pressure oxidation process was selected primarily on the grounds of its superior environmental characteristics.
The performance of the laboratory-scale batch pressure oxidation is summarised below.
For example high pressure oxidation is limited by the costs of the autoclaves involved.
The arsenic-containing copper sulphide minerals undergo pressure oxidation in the autoclave.
Copper is recovered from the pressure oxidation filtrate prior to recycling a part of the filtrate.
See also
The percentage copper distribution shown in Table 1 refers to pressure oxidation.
The pressure oxidation temperature influences copper extraction and sulphur oxidation as well as arsenic precipitation.
A process according to claim 1, wherein the pressure oxidation is effected in the presence of a surfactant.
Pressure Oxidation is a process for extracting gold from refractory ore.
The dosage of KI reagent utilized in pressure oxidation was varied as shown in Table 9.
Pressure oxidation may be effected in the presence of up to 5 kg / t of potassium iodide.
The raffinate from the Zn solvent extraction is recycled to the pressure oxidation stage 12.
Recycling the pressure oxidation filtrate to the pressure oxidation ;.
The difference from Figure 5 lies in the treatment of the pressure oxidation slurry.
Separating the pressure oxidation filtrate and the basic copper salt ;.
EXAMPLE 12 The following example demonstrates temperature and pressure conditions utilized during pressure oxidation.
The retention time of pressure oxidation in the autoclave was varied as shown in Table 7.
The raffinate is recycled to the pressure oxidation stage 12.
Conditions in pressure oxidation are essentially the same as for Copper-nickel concentrates.
Copper Leaching Copper concentrate II was subjected to pressure oxidation under conditions described in Example 9.
A process according to claim 35, wherein the copper is recycled to the pressure oxidation.
The pressure oxidation arrangement as claimed in claim 11, wherein the arrangement further comprises,.
The degree of sulphur oxidation ( to sulphate ) during pressure oxidation.
The pressure oxidation may be effected with an acidic solution containing about 4 to 25 g / L chloride.
Approximately 25 g / l acid is required to maintain an equilibrium copper tenor across the pressure oxidation.
The resulting aqueous raffinate is recycled to the pressure oxidation at 104 to leach additional copper.
Next, pressure oxidation of the arsenic-bearing copper sulphide feed is carried out at 104.
Instead, a portion of solubilized arsenic is precipitated during pressure oxidation 104 in the autoclave.
This also applies to the pressure oxidation neutralization using Ca ( OH ) 2 ( slaked lime ).
This is also tied in with the solvent extraction 27 of the pressure oxidation filtrate bleed 26.
The high pressure oxidation was carried out for 6 hours at 250°C with stirring.
The processing techniques can include grinding, concentration, roasting, and pressure oxidation prior to cyanidation.
The resulting pressure oxidation discharge slurry may have about 10 to 40 g / L acid.
The above reactions suggest that the overall leaching reactions during pressure oxidation 104 are acid consuming.
Examples 1 to 7 illustrate the pressure oxidation stage 12 of the process.
The resultant wash liquor 47 produced is recycled to the pressure oxidation stage 12.
The copper containing solution 29 from the pressure oxidation stage 12, is subject to a solvent extraction stage 50.
Therefore, a temperature of 140°C or greater is utilized for the pressure oxidation process.
Other processes for treating refractory ores include Pressure Oxidation ( POx ) and Bacterial Leaching ( BIOX ® ).
In addition, the neutralization 501 helps to minimize Fe in the pressure oxidation filtrate 29.
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