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BENEFICIATION OF SILICA SAND Submitted By:- Harshal Gajbe (BT11CHE023) Vishwesh Rai (BT11CHE085)

Beneficiation of silica sand

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BENEFICIATION OF SILICA SAND

Submitted By:-

Harshal Gajbe (BT11CHE023)

Vishwesh Rai (BT11CHE085)

What is ‘beneficiation’ ?

‘Beneficiation’ is the processing of raw

minerals to yield marketable products by means

of physical and mechanical methods without

destroying their physical and chemical identity.

What is Silica Sand ?

Silica is the name given to a group of

minerals composed of silicon and oxygen, the

two most abundant elements in the earth's crust.

Sand consists of small grains or particles of

mineral and rock fragments, generally is the

mineral of silica.

Res

ou

rces

of

min

erals

in

In

dia

The value of production of Non- metallic at

Rs. 4986.94 Crore.

In which the Silica Sand contributes about

0.70 %.

Rajasthan, the principal State accounted for

74% of the overall production of Silica Sand.

Silica Sand having color due to ferroginuos

impurities present in it. Assay value of

required Silica Sand varies with its

application. Maximum production of Silica

Sand is for glass industries.

Ref:- IBM, Nagpur

Mineral Percent

SiO2 99.07

Al2O3 0.56

Fe2O3 0.019

CaO 0.03

Quartz Concentrate

(after overall treatment)

Ref : US-2769540

Flow Sheet for the Processing of Silica Sand

Chertala, Kerala

Indian Standard Specifications for Glass Making Sand

Ref:- IBM, Nagpur

Equipments Used for Beneficiation

Spiral classifier is widely used for separating sand in the ore beneficiation plant to equip with ball mill to form a closed cycle, for classifying ore sand and fine silt in the gravity separation plant, for the granularity classification of the pulp in the metal ore beneficiation flow and for removing the slime and water in the ore washing process.

Froth flotation is a highly versatile method for physically separating

particles based on differences in the ability of air bubbles to selectively

adhere to specific mineral surfaces in a mineral/water slurry. The particles

with attached air bubbles are then carried to the surface and removed,

while the particles that remain completely wetted stay in the liquid phase.

Froth flotation can be adapted to a broad range of mineral separations

Magnetic separator is one of the machines with the widest

application and highest universality in the mining industry and it is

suitable for removing the iron to recycle the powder particles.

SILICA SAND BENEFICIATION PLANT (US-1957579)

(RAJSTHAN, INDIA)

SILICA SAND BENEFICIATION PLANT (US-2769540)

(ALBERTA, CANADA)

Filler and extender

Production of silicon and silicon carbide

Pigments

Building products

Hydraulic fracturing and propping in the oil industry

Ultra high silica products in the electronic and fibre optic industries, fused

Silica, silicone products

Water filtration

Glass industry

Refractories

APPLICATIONS OFSILICA SAND

References

1. EBS 425 – Mineral Perindustrian Dr. Kamar Shah

Ariffin(2004).

2. ‘METHOD OF BENEFICIATING SILICA SAND’ O. R.

BROWN, US276950

3. Development of a Beneficiation Flow Sheet for

Processing Silica

Sand, P. Raghavan, Regional Research Laboratory,

Trivandrum — 695 019.

4. www.ibm.gov.in

5. IBM Year book-2011.

THANK YOU !!!