Galena, copper pyrites, sphalerite, chalcocite. Please note that although argentite (Ag2S) is a sulphide ore, it is not concentrated by froth floatation process since its silver content is low. It is better concentrated by leaching with NaCN .

Sulphide ores of metals are usually concentrated by froth floatation process. Which one of the following sulphide ores offers an exception and is concentrated by chemical leaching? Galena; Argentite; Copper pyrite; Sphalerite

The flotation results demonstrate that Zn 2+ and SO 3 2− provide a synergistic depression effect on sphalerite and the aerofloat collectors exhibit more selectivity towards galena.

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Froth flotation is a physico-chemical separation process based on the attachment of hydrophobic particles to an air bubble. The actual flotation process is highly complex and …

C froth floatation process. D All of the above. Submit. How many metallic ores are concentrated by magnetic separation method from the given ores ? Cassiterite, pyrolusite, rutile,magnetite, galena, cinnabar. ... Amongest the following, how many ores can be concentrated by froth flotation process : Galena, sphalerit, cassiterite, calamine ...

Froth floatation process is suitable only for sulphide ores. Galena (PbS) is sulphide ore whereas the rest are not.

In order to concentrate galena (which contains ZnS as impurity) by froth floatation process, sodium cyanide is used as department. NaCN dissolves ZnS due to formation of water soluble complex (A). Find wxyz, Where w=corrdination number of central metal ion in complex ion of (A) x=number of unpaired electrons in (A)

The electrochemical behavior of galena in flotation process has been widely studied. The flotation and separation of sulfide minerals can be realized by controlling the electrochemical conditions of the flotation system. Table 1 summarizes the relationship between the galena flotation process and electrochemical conditions.

Galena is PbS, sulphides ores are concentrated by froth flotation process. Galena is PbS, sulphides ores are concentrated by froth flotation process. Ask Doubt on App. ... What type of ores can be concentrated by froth floatation process ? Explain how can the process be carried out ? View Solution. Knowledge Check. Question 1 - Select One.

To solve the problem of concentrating galena (PbS) selectively from a mixture contaminated with zinc blende (ZnS) using the froth flotation process, we can follow these steps: 1. Understanding the Froth Flotation Process : - Froth flotation is a method used to separate hydrophobic materials from hydrophilic ones. In this process, chemicals called collectors are added to the ore slurry …

In the Froth Floatation process, you will come across different terminologies. Let's discuss them. Frothers - Frother is an agent that is active in froth flotation through its ability to change the surface tension of a liquid generate a stable froth that rises to the top of the tank. Example - pine oil, Eucalyptus oil, etc.

These collector concentrations, pH levels, and conditioning times conform to the standard parameters commonly employed in galena flotation operations, as previously …

The flotation tests and XPS analyses on galena, sphalerite and pyrite have been carried out in a collecting-depressing-reactivating system (hereafter referred as the CDR …

Galena; Copper pyrite; Sphalerite; Argentite; A. Galena. B. Copper pyrite. C. Argentite. D. Sphalerite. Open in App. Solution. Verified by Toppr. Froth Floatation Process: This process is best suitable for sulphide ores. The process is based on different wetting characteristics of the ore and gangue particles with water and pine oil. The ore is ...

Galena (PbS), copper pyrite (CuFeS2) and argentite (Ag2S) are concentrated by froth floatation process but sphalerite (ZnS) is concentrated by chemical leaching .

Step by step video, text & image solution for An ore of galena (PbS) is contaminated with Zinc blende (ZnS). Name one chemical which can be used to concentrate galena selectively by froth floatation process. by Chemistry experts to help you in doubts & scoring excellent marks in Class 12 exams.

Galena (P b S) is best concentrated by a froth-floatation method. This method is used for the concentration of sulphide ores such as galena (P b S), zinc blende (Z n S) and copper pyrite (C u F e S 2). ... Which of the following ores can be best concentrated by froth floatation process?

Click here:point_up_2:to get an answer to your question :writing_hand:what is the role of depressant in froth floatation process. Solve. Guides. Join / Login. Use app Login. 0. You visited us 0 times! Enjoying our articles? Unlock Full Access! Standard XII. Chemistry. NCERT. Question. What is the role of depressant in froth floatation process?

Match List I Metal with List II Process of Extraction and select the correct answer.Using the codes given below the lists List List II[ Metal Process of Extraction ]A. Aluminiuma. Blast furnaceB. Ironb. Mond processC. Nickelc. Bayer's processD. Copperd. Froath floatation

Froth floatation process - why CuSO4 is activating floating character of ZnS? Ask Question Asked 7 years, 11 months ago. Modified 7 years, 8 months ago. Viewed 4k times ... It is interesting to note that flotation of galena ($ce{PbS}$) is unaffected by the presence of cyanide.

Complexes formed in the following methods are–I Mond's process for purification of nickelII Removal of unreacted AgBr from photographic plateIII Removal of lead poisoning from the bodyIV Cyanide process for extraction of silverV Froth floatation process for separation of ZnS from galena ore by using depressant.

Hint: In the Froth flotation process, depressants help to separate two sulphide ones by selective prevention of froth formation by one ore and allowing the other to come info froth. Sodium cyanide is added so that it can form complex with the unwanted sulphide so that wanted sulphide ore can be easily extracted. ... Froth floatation mainly used ...

Which one of the following sulphide ores offer an exception and is concentrated by chemical leaching? 1 Galena 2 Copper pyrite 3 Sphalerite 4 Argentite. More from this Exercise ... During the concentration of sulphide ores by froth floatation process, the separation of sphalerite and galena is achieved by which of the following substances used ...

Step by step video & image solution for An ore of galena (PbS) is contaminated with Zinc blende (ZnS). Name one chemical which can be used to concentrate galena selectively by froth floatation process. by Chemistry experts to help you in doubts & scoring excellent marks in Class 12 exams.

the sulphide ore galena is concentrated by froth floatation process. D. in the metallurgy of iron, the Flux used is S i O 2. More from this Exercise. 20 videos. Text Solution. Verified by Experts. ... Oil used as frothing agent in froth floatation process is ..... Text Solution. The first step in the extraction of copper is....

Solution For During the concentration of sulphide ores by froth floatation process, the separation of sphalerite and galena is achieved by which of the following substances used as depres. World's only instant tutoring platform. Instant Tutoring Private Courses Explore Tutors. Login. Student Tutor. Class 12 ...

Silver and gold are extracted by the cyanide process (Mac Arthur - Forrest process). After the preliminary crushing and concentration by froth floatation process, the ore (crushed auriferous rocks in the case of gold) is leached with dilute (0.4 - 7%) solution of sodium cyanide made alkaline by adding lime kept agitated by a current of air.

Table 1: Grade/recovery performance of a hypothetical copper ore flotation process. Product % Weight % Cu Assay Feed 100 2.09 Concentrate 10 20.0 Tailings 90 0.1 (a) From Table 1, the Ratio of Concentration can be calculated as F/C = 100/10 = 10. If only assays are available, the ratio of concentration equals (20 – 0.1)/(2.09 – 0.1) = 10 ...

2.2 Flotation Process. The flotation experiment used a series of flotation appa-ratuses, as shown in Fig. 1. Flotation was done in a flota-tion column with a volume of 100 mL and an …