What sort of scale are you working on? Are you trying to prove your methods work in principle or is it a real world application? I would suggest a cation-exchange method would be an acceptable method up to a few kilograms (of ore), but if you're processing tons of material, I don't know what might be "cost-effective". Could magnetic separation methods work ?

Hi, dear Mathew

We are working on designing a manganese processing plant with production more than 1000 ton per month of manganese sulphate.

Unfortunately, our manganese ore have high amount of Iron carbonate minerals such as siderite that completely entire to highly acidic leaching liquor. In addition, siderite dose not have high magnetic susceptibility to be separated by magnetic methods.

Dear Nassir,

Phospate treatment, removal by ion exchange, Removal by Iron and Manganese Filtration (oxidation with aeration, chlorine, per-magnate), Gravity and pressure filters are both used, with pressure filters being the more popular.

Phosphate treatment-

If the total detention time in the distribution system exceeds 72 hours, the phosphates may break down and release the iron and manganese in the outer portions of the system. If the detention is exceeded, the iron or manganese problem may not be resolved with phosphate.

Removal by Ion Exchange

the process is expensive and the capacity of this resin is reduced with each cleaning. This method is not recommended for municipal treatment.

Removal by Iron and Manganese Filtration

Removing iron and manganese from drinking water instead of sequestration it is recommended if the water contains over 0.3 ppm of iron or 0.05 ppm of manganese.

Oxidation with permanganate

Potassium permanganate is typically more effective at oxidizing manganese than aeration or chlorination. This method allows the oxidation process to be completed in the filter itself and is a buffer to help avoid pink water in distribution. After the filter is backwashed, it regenerates for a period of time with a high level of permanganate before it is put back into operation. The normally-used filter media (sand) will remove iron and manganese if the combined concentration is below 1 ppm. Higher concentrations require different type of filter materials (greens and others) and different methods of operation.

Just check it out. It may be helpful to you.

Ashish

Hi

Mr nasser

I think you use ore of manganese ore.

For remove completly of ferros ion you must rise ph of solution by cao to ph =7 . Then stirr the solution 1h at 80c.

Then filter it.

Almost of ferrous ion will be remove.

I have question

What is your reduction agent ?