Title of Technology to be offered

Magnesium Chemicals: Mag-Sulph, Mag-Carb  using waste Magnesite dust

Type of Technology

Indigenous

Area of Technology

1. Chemistry and Chemical Engineering 2. Waste Management

Approach adopted in new technology to evade technological gap in the existing one

Utilisation of Waste Management

Brief description/abstract (150 words)

Magnesite dust containing 40-50% MgO (60-80 mesh) is treated with sulphuric acid under controlled conditions and is followed by crystallisation. After solid-liquid separation, mag-sulph crystals are produces which can be utilised for producing magnesium carbonate with sodium sulphate as a byproduct.

Major raw material

Magnesite dust, Sulphuric acid, water, steam etc.

Major Plant Equipment/Machinery

Constant stirred tank reactor, crystallizer, centrifuge, filter press, a small boiler

Area of application

Details of specification application

Magsulph can be used for manufacturing high quality magnesite bricks, fire proofing, micronutrients for tea gardens, pharmaceuticals etc. and as a starting material for other Mag-chemicals.

Status of Specific Development

Lab Scale

Ecological/Environmental Impact  (if any, specify briefly)

Environment Friendly

Patenting details

Not Filed

Extent of Commercialisation

Under the process of commercialisation

Technology Transferring Agent

NML/CSIR

Technology Transfer Assistance Offered (Optional)

(a) Process Know-How, (b) Details of the Equipment & (c) Broad specification for equipment Consultancy for operation and installation of the plant on separate terms

Key words

Magnesium, Magnesium Chemicals, Magsulph,  Magcarb

Additional Information (if any)

A plant with a capacity of 1500 tpa magsulph and 900 tpa mag-carbonate at 100% capacity utilisation will have 60% return on investment.

Country of origin

India