Hydrometallurgy: Leaching in Heap, Vat, CIL, CIP, Merrill–Crowe, SX Solvent Extraction

Hydrometallurgy: Leaching in Heap, Vat, CIL, CIP, Merrill–Crowe, SX Solvent Extraction

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materials of construction concentrated brine (1 reply)

11 months ago
graeme23miller 11 months ago

i am looking for anyone with experience in selecting materials of construction in high concentration chloride brine.  we are doing a class 5 feasibility study without any corrosion test work. as a result the selection of materials are generally non-metals. so for pumps and Agitators we are going to be forced to select metallic materials "sight unseen".  the total chloride concentration will be more than 100 g/L of Chloride say 3 molar in chloride with attendant Na, Mg, K,  Li, B, etc. pH will be in the range 6 to 8 but will be adjusted in the process to about 4 by addition of H2SO4.

we ave been considering super duplex 2507) or one of the hastelloy C276 perhaps.


any guidance from operating experience would be really welcome.


many thanks

11 months ago
SmartDog 11 months ago

Some of it comes around to the volume of material you will be handling on a hourly and daily basis.  There are some ootb thoughts that can be used if proper care and thought is used.  First though just remember that an average pump life is 3 to 6 months (1,800 to 3,600 hours), so even cast iron can be made to do.  Second rubber lined might be an option, and has been used successfully in many brine operations.  Third, if high head is not a problem, diastolic pumps can be used, and they can run upto several thousand gpm.

Also see: https://www.smartdogmining.com/topics/Wood_for_plant_construction.html

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