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 There
are three oxides of Lead with commercial applications: Lead
Sub-Oxide (2PbO.Pb.H2O), also known as Grey/ Lead Oxide, Litharge (PbO)
and Red Lead Oxide (Pb3O4) or Lead Ortho-plumbate. We provide
comprehensive (off the shelf) solutions for the manufacturing of
Lead Oxides namely Lead Sub Oxide (Grey Oxide / Battery Oxide), Red
Lead Oxide (Lead Tetra Oxide) & Litharge Oxide (Lead Mono Oxide / Lead
Yellow Oxide) with the required process inputs. |
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 Grey Oxide is used on an extensive scale for preparation of plates
in Lead Acid Batteries which requires production to strict
specifications .Refined Lead (99.97% purity) ingots are the required
input for our LSO manufacturing plant, which uses the ball mill
process. It comprises of a small Lead Melting Furnace, operating in
line with a hemispherical ball-casting machine, which feeds the
balls to the ball mill .In the ball mill, Lead is converted to Lead
Sub Oxide in an exothermic process, in conditions of a maintained
temperature range of 135-145 degrees centigrade and constant
airflow. The Grey Oxide is harvested through a high efficiency
cyclone, bag-house filtration unit and induction draft fan
arrangement. It is in a grey powder form. The desired particle size
and free Lead content is ensured through proper plant configuration
and precise control of ID Fan suction .Our Plant can produce up to
350 mesh size LSO powder, be configured for any desired production
capacity and come complete with the required accessories & material
handling systems.
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Litharge, an important intermediate, is used in a variety of
industries like ceramics and glass, lubricants and greases,
insecticides, inorganic pigments, Lead soaps, petroleum refining,
rubber and PVC. Red Lead is also used to a certain extent in the
ceramics and glass, paints and pigments and explosives industries.
Our manufacturing solutions for Red Lead and Litharge have a Barton
plant as the common first step. The required input is refined Lead
ingots of 99.97% purity. The Barton plant output is routed to either
the Red Lead or the Litharge furnace with their respective equipment
complement. The Barton plant comprises of a small Lead melting
furnace, operating inline with a Barton Reaction Pot with stirrers,
classifier, cyclone, filter bag-house, ID Fan arrangement, together
with a collecting bin and material handling systems.
The final Litharge plant module utilizes the Barton plant module
output as its input. It comprises of the Litharge furnace, grinder,
cyclone and bag-house arrangements, ending in a mixer\silo & packing
section.
The final Red Lead plant module utilizes the Barton plant module
output, as its input. It comprises of a Red Lead furnace, in
conjunction with a dust collection plant, conveyors, grinder and
cyclone-bag-house filtration unit arrangements, culminating in a
packing and storage module.
Our Red Lead and Litharge manufacturing Plant can be configured for
a wide range of capacities.
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Red Lead Typical
Specifications |
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Litharge Typical
Specifications |
| ATTRIBUTE |
RED Lead SETTING GRADE |
RED Lead NON-SETTING
GRADE |
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Colour |
Orange Red to Brick Red |
Brilliant Orange Red to
Brick Red |
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Crystal Structure |
Spinal Structure |
Spinal Structure |
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Thermal Stability |
500 ° C |
500 ° C |
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Specific Gravity |
9.1 |
9.1 |
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Retention on 240 mesh Sieve/63 micron
15' Sieve (max %) |
0.15 |
0.15 |
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Apparent Density |
1.3 to 1.6 |
1.2 to 1.3 |
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Subsidence in Petrol / Water mi/gm |
0.38 to 0.45 |
0.43 to 0.45 |
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Water Absorption |
80 to 100 |
100 to 110 |
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Acid Absorption |
150 to 160 |
130 to 150 |
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Volatile Matter |
0.01 |
0.003 |
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Oil Absorption |
6-7 |
6-7 |
|
Free Lead (% Max) |
Traces |
NIL |
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PbO % |
18 to 27 |
30 to 33.1 |
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PbO |
51.6 to 77.4 |
86 to 95 |
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Moisture Content (% Max) |
0.05 |
0.05 |
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Purity (% Min) |
99.99 |
99.99 |
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| ATTRIBUTE |
COMPOSITION |
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Colour |
Canary Yellow with Reddish
tinge |
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Crystal Structure |
Orthombic + Tetragonal |
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Specific Gravity |
9.5 to 9.9 |
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250 ° C to 897 ° C |
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Retention on 240 mesh Sieve/63 micron
15' Sieve (max %) |
0.1 |
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Apparent Density (scott) gms/cc |
1.8 to 2.2 |
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Subsidence in Petrol / Water mi/gm |
0.40 to 0.42 |
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Water Absorption |
90 to 100 |
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Acid Absorption |
80 to 110 |
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Solubility in Water gms/litre |
0.10 |
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Oil Absorption |
0.1 |
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Insoluble matter in Acetic Acid (% Max) |
0.08 |
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Free Lead (% Max) |
0.01 to 0.05 |
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PbO (% Min) |
99.5 |
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All
our Lead Oxide-Manufacturing Plant are designed with environment
friendly technology configurations. As required, the optimum use of
impulse filter bag-houses, after filters, variable cross-section
central ducting and automatic conveyor systems ensures minimization
of dust emissions and enhanced process efficiencies. We provide
complete solutions with appropriate process inputs and training to
ensure production to the strict specifications required by the
consuming industries.
