A sequential flotation process for the recovery of highgrade concentrates of copper, lead and cobaltnickel from sulfide ores is provided. A primary grind ore pulp is conditioned with SO 2 as H 2 SO 3 under intense aeration, and the conditioned pulp subjected to sequential flotation, with regrinding and conditioning of a copper rougher concentrate obtained in the first flotation step for copper.
Besides, the effect of the mixing ratio of various CuMo ores and mineralogical compositions on the flotation recovery was evaluated. It might be hypothesized that the flotation kinetics of blended CuMo ore in seawater can be estimated by the flotation kinetics of each copper and molybdenum mineral from each CuMo ore.
The production of concentrates implies the crushing and later milling of the ore down to a particle size allows releasing copper by flotation. The concentrates from different regions have approximately between 24% up to 36% of copper. Copper concentrates are then submitted to a final filtration and drying process to decrease the humidity to 89%.
· The ore from the Garson mine contains a much higher concentration of arsenic than the other ores. Adding this ore into the feed to the mill has resulted in an increase in arsenic content of the CuNi bulk concentrate to a level that significantly affects the smelter operation, and more importantly the efficiency of CuNi separation in the Matte ...
Openpit – 90% of ore is mined using the open pit method. Ores near the surface can be quarried after removal of the surface layers. The ore An ore is a rock that contains enough metal to make it worthwhile extracting. Grinding The ore is crushed, then ground into powder. Concentrating The ore is enriched using a process called froth flotation.
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Cu kt Source: TeckCominco and Brook Hunt Figure 1 The source of the additional copper needed to supply this market may be different, however, than the recent past. Over the last 15 years, there has been a substantial expansion of mines using heap leaching methods for whole ore, coupled with SXEW,
Microflotation cell 50 g of 250 + 100 µm quartz per Test (Ore is to be ground prior to using it in tests) Sodium oleate – Dodecylamine chloride – M Sodium hydroxide – Hydrochloric acid – Calcium chloride – Frother – MIBC. Under procedure, we had to. Determine the volume of the flotation cell which was ...
Remember that only % of the ore is copper. The copper minerals and waste rock are separated at the mill using froth flotation. The copper ore slurry from the grinding mills is mixed with milk of lime (simply water and groundup limestone) to give a basic pH, pine oil (yes, it comes from trees a byproduct of paper mills) to make bubbles ...
Conventional floatation treatment has poor effects on recovering CuCo sulfideoxidized mixed ores due to the high oxidation rate and large amount of carbonaceous mud of the ores. The research results showed that the preremoval of carbonaceous mud asynchronous flotation process got a better flotation results than the conventional process.
Table 2 Potential Candidates for Hydrometallurgical Pretreatment Concentrate Cu,% As,% Sb, % Pb, % Zn, % Co + Ni, % A 28 7 B 23 9 10 C 25 6 13 D 22 10 7 E 11 F 27 10 6 G 25 9 6 H 24 5 10 9 I 19 9 8 While hydrometallurgical processing at the mine reduces the marketing risk associated with impurity
There are interactions between different minerals from the same ore, minerals and grinding media, and the electrochemical conditions present in the system. Grinding in steel rod and ball mills is a common practice in minerals processing. It is
· Froth Flotation. In terms of daily tonnages of ore that are treated globally, froth flotation is the single most important mineral recovery process. This is driven by its ability to selectively separate minerals. Flotation is considered to be a physicochemical process.
The ore is concentrated by froth flotation process. The concentrated ore is roasted in a reverberatory furnace when the following reactions occur. 1. The volatiles like sulphur and arsenic escape as gases S + O 2> SO 2 4AS + 3O 2>2AS 2 O 3 2. Copper pyrites is converted to a mixture of Cu 2 S and FeS 2CuFeS 2 + O 2> Cu 2 S + 2FeS ...
The following Danafloat™ collectors should be initially considered for complex CuPbZn ore flotation: CuPb Flotation: Danafloat™ 067 Danafloat™ 068 Danafloat™ 070 Danafloat™ 233 Danafloat™ 245 Danafloat™ 345 Danafloat™ 507E Danafloat™ 271 and 571 for oxidized copper and lead minerals. Selective Zn Float: Danafloat™ 123 ...
We study the effect of one of the main parameters of flotation oredressing, specifically, alkalinity of the pulp, on the selective flotation of sulfide and oxide minerals of copper from the ...