The
opportunities are
sustaintialas far
as commercial of
lignosulphonates
are concerned. To
list a few, the
major ones as follows. |
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a)
Oil and Grease Industry
:
The lignosulphonates
are used to stabilize
the emulsions containing
water and dispresent
used in drilling
of oil wells. These
emulsions are used
to improve the properties
of drilling mud
in terms of reduction
of torque on the
drill stem, control
of water loss etc
It is also used
as a decanter to
separate oil from
other heavy impurities.
Due to its emulsifying
and ability to increase
the viscosity of
low-density oil,
lignosulphonates
are used to make
grease. |
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b)
Tissue Cultuer :
Lignosulphonates
have been reported
to be used as fertilizers.
Effet of lignosulphonates
as culture medium
additive had been
studied on plant
in vitro culture
systems. The application
of lignosulphonates
at optimum concentrations
on different plants
have resulted in
stimulation the
growth of sugar
beet callus, improvement
in multiplication
rate and vigor of
a shoot proliferating
popular cluster
and increase in
the rooting percentage
of popular shoots.
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| c)
Cement Imdustry
: The
lignosulphonates
have got wide spread
uses in cement industry.
Lignosulphonates
are used as grinding
aids in cement grinding
mills. In grinding
process, Lignosulphonates
reduce the agglmaration
of the ground particles
and surface tension
of the solid-air
interference of
the particles and
at the same time
keep the surface
of the grinding
media free and clean.
Lignosulphonates
are also used as
a retarder in cement
to delay the setting
time of concrete
in mass construction,
to avoid cracking.
Lignosulphonates
also increase the
durability and compressive
strength of the
cement. |
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d)
Adhesives :
Lignosulphonates
can be used as an
ingredient alongwith
other chemicals
for the production
of adhesives for
plywood and clipboard..
The linolcum cement
containing mainly
lignosulphonates
and clay are used
as adhesive for
ceiling titles.
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e)
Binders :
Lingosulphonates
are used as binders
for pellets and
briquettes. The
pettets formed from
iron ore with a
very low concentration
of lignosulphonates
are many times harder
than the pellets
made with bentonite
binder |
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f)
Explosievs :
Lignosulphonates
are used to increase
the sensitivity
for explosive. The
hygroscope nature
of lignosulphonates
allows it to hold
tiny water particles,resulting
in increased conductivity. |
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g)
Other Applications
: Lignosulphonates
are also used as
a disperser in dye
industry, additive
in rubber industry,
brightening agent
in electrolytic
refining etc. |
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