Froth Flotation (Sulphide & Oxide)

Froth Flotation (Sulphide & Oxide)

  • To participate in the 911Metallurgist Forums, be sure to JOINLOGIN
  • Use Add New Topic to ask a New Question/Discussion about Flotation.
  • OR Select a Topic that Interests you.
  • Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent).
    Using Add Reply allows you to Attach Images or PDF files and provide a more complete input.
  • Use Add Comment = to comment on someone else’s Reply in an already active Topic/Discussion.

Flotation of Lead oxide (5 replies)

m
mardin
4 months ago
mardin 4 months ago

Hi Dears,

Can anyone help me about the processing of lead whose minerals are serosite and contain more than 20% iron? The lead grade about 4% .

 

J
Jorge
4 months ago
Jorge 4 months ago

I think, the oxide lead mineral is cerussite. Review your mineralogical data. You need to determine the degree of oxidation. I mean, try to estimate the presence of galena and cerussite because you could need to flotation circuits, one to recover galena and other to try to recover cerussite. Try to recover both at the same time could be difficult.

To recover cerussite, you need to study the effect of Na2S or NaHS in the lead recovery. Several dosages such as 200, 400, 800 or 1200 g/t (may be higher additions). If the presence of iron oxides is significant ( your ore could be brown or a similar color), you need to evaluate the effect of some dispersants (e.g. sodium silicate, hexametaphosphate). The color could be SIPX and the frother MIBC.

It is necessary to perform rougher tests to evaluate the particle size and the effect of reagents. One more time, read your mineralogy data very carefully.

 

m
mardin
4 months ago
mardin 4 months ago

Dear Jorge

Thanks for your answer.

yes, the oxide lead mineral is cerussite and the presence of iron oxides is significant, I mean the ore color is brown and red.

I tested the effect of Na2S but the recovery was very low, about 15%.

I will send you the sample analysis.

 

IMG 20210121 171452 1672
https://www.911metallurgist.com/wp-content/uploads/2021/01/IMG_20210121_171452_1672.jpg
J
Jorge
4 months ago
Jorge 4 months ago

You provided information on whole rock analysis. I did not find the lead grade. You added Na2S, but you did not mention the dosage. Sometimes, the addition of copper sulphate can be useful.

Three years ago, You made a similar question. What happened at that time?

Oxide Lead Flotation - Froth Flotation (Sulphide & Oxide) - Metallurgist & Mineral Processing Engineer (911metallurgist.com)

How to Process Oxidized Lead-Zinc Ore by Flotation (911metallurgist.com)

 

m
mardin
4 months ago
mardin 4 months ago

at the table the Lead grade mentioned that is 5.11 percent.

I added Na2S at the different dosage but i couldnt get the desired result.

Abaut the similar question in three years ago I can get the desired result and the recovery increase but that ore did not contain iron.

 
volume_up

content_copyshare

star_border
 
J
Jorge
4 months ago
Jorge 4 months ago

At that time, you did not provide all the information (e.g. K80, flowsheet), your position is understanding. Probably, to avoid to share many data, you should contact a met lab. 

Please join and login to participate and leave a comment.