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6 Yrs
G-1, 1428, RIICO Industrial Area, Phase V, Bhiwadi
Alwar, Rajasthan-301019, India+(91)-1493-512430
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Zinc Sulphate Plants

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The Zinc Sulphate is major source of Zinc supply to crops. The Zinc deficiency creates poor growth, flowering and fruitation in the plant.
Zinc Sulphate Product :

  1. Zinc Sulphate Hepta Hydrate

Raw Materials :
  1. Zinc Ash
  2. Sulphuric Acid (Technical grade 98.5% pure)
Spent Sulphuric acid may also be used partially in place of Technical grade.
Zinc Ash Specifications :
  1. Zinc 70% (40 – 72%)
  2. Lead (Pb) 8% max ( Lesser the better)
  3. Iron (Fe) 5% max
  4. Chlorides (Cl) 25 – 30 max (Less the better)

Manufacturing Process :
A measured quantity of water / wash water is filled in the Digester. The measured quantity of Sulphuric acid is slowly added to the digester. The measured quantity of Zinc ash calculated on stiometic ratio is added slowly with agitation. The addition is continued till the completion of the reaction. As the reaction is complete the suspension is drained in the filtration tank for storage. The suspension is taken to Filter Press with the help of a pump. The suspension is filtered with the filter press. The residue is washed and filtered again for better recovery. After wash the residue remains is good quality Carbon. It is dried and sent to the market. The filtrate is fed to the crystallizer. The cooling is provided by circulating chilled water generated with freezing system. The solution is stirred continuously. As the required temperature is reached the Zinc Sulphate crystals separate out in the mother liquor. The mother liquor is drained into the recycling tank. The separated crystals are centrifuged with the help of centrifuge to remove any liquor remaining. The Zinc Sulphate hepta – hydrate is ready for filling in 1, 2, 5, 10, 25Kg. bags to be sent to market.
For mono hydrate the filtrate is dried in a spray Drying system. The mono hydrate is collected in a hopper and packed in 1, 2, 5, 10, 25Kg. bags to be sent to the market.

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