Mineral Benefication Plant
We specialize in the design, detailed
engineering, supply, erection and commissioning of mineral beneficiation
plants for the following: -
- Lead-Zinc-Copper- Pyrite Ores
- Rock Phosphate Ore
- Fluorspar Ores
- Tin Tungsten Ores
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We have already designed a low-grade rock
phosphate beneficiation plant and commissioned it in India. This is the
first plant set up in the private sector, which has been working
successfully.
We have a team of experts in evaluation of ore characteristics and
development of basic engineering for setting up beneficiation plants for the
metallic and non-metallic ores.
Images of Mineral Benefication Plant
We undertake development and erection of Mineral Benefication Plant on
turnkey basis and also execute production & maintenance contract for
these plants.
Phosphoric Acid Plant
The Sulfuric Acid, Rock phosphate Mineral
Powder and water are mixed in a agitated process vessel connected with
scrubber system. The above slurry solution is filtered and the filterate is
Collected in another agitated process vessel as Crude Phosphoric Acid for
further processing. The solid part is Gypsum, which is thoroughly washed
with water to make it free from Crude Phosphoric Acid. The wash water \
recycled water containing phosphoric Acid is recycled in next batch with
Rock phosphate and Sulphuric Acid. During this step the impurities of Rock
Phosphate Mineral [such as Florspar CaF2, CaCo3 Lime stone] are reacted with
Sulphuric Acid. The CaF2 forms HF with sulphuric Acid. The HF is reacted
with Silica to forms SiF4 is highly soluble in water to form H2SiF6 and
silica inside the Scrubber as well as inside the agitated Process vessel.
This Acid is concentrated and the concern condensate in neutralised with
Ca(OH)2 & insoluble precipitate is mixed with hyproduct Gypsum. The
Crude Phosphoruc Acid contains further some H2SiF6 The H2SiF6 [Hydro Silicic
acid or Hexa Fluoro Silicaste] is mixed with Lime stone Powder to form
insoluble Florspar (CaF2), which is soluble only in strong concentrate acid.
This is also filtered with partial precipitate of Calcium Phosphate (Tri)
this insoluble is recycled with Acid recovery of P2O5 in Adulation process
with Rock Phosphate. After filtering above Slurry Solution, the filterate is
Purified Phosphoric Acid.
Synthetic Gypsum Plant
Lime Stone is ground to min. 65% -300
mesh and is stored in the over head bin. Automatic weigh scale is installed
to control the feed into Mixer. Sulphuric acid (60-98%) and water is pumped
to Mixer. Sulphuric Acid and water is metered with an automatic control
meter which maintains acid-Lime powder-water ratio at the pre-determined
setting. The discharge of Mixer goes into DEN (a specially designed
equipment). In DEN material cured slowly under the suction for collecting of
gas generate in the Mixer and DEN.
The Synthetic Gypsum material is transferred from DEN to storage piles,
where further curing takes place. It contains about 12% moisture and during
this maturing stage the moisture content reduces. It is dug out with a Grab
Bucket E.O.T. crane for further processing or dispatched in bulk or packed
form.