The importance of lime
The lime (also the dolomite) is,
after the soda, the
second industrial strong chemical base.
In all those processes where
it is necessary to neutralize, to precipitate and also
to protect the
environment, the lime constitutes a solution. Being
a very old product,
manufactured with the advances of a more and more elaborated
the lime possesses a very important characteristic:
From the commercial point of view, the polyvalence
is translated in
the possibility that the lime can be used in very diversified
what avoids that it is subjected to the influence of
only one or two economy
The lime's market
The lime's most important application,
the one representing the highest market percentage,
is steelmaking. In this industrial
sector, the lime is used to dephosphorize and desulfurize
So important are those functions that no steel type
can be manufactured without lime. It's application
is fundamental to dephosphorize the raw materials,
both in the converter and in the electric furnace.
The consumption of lime in steel stands for approximately
between 40 and 55% of the percentage of sales of
a lime's factory.
No lime factory worth its name can exist without a
Other important applications of
- In agriculture as a soil improving agent, in order
to neutralize the phosphorous (pH) of the soils.
- As a construction material.
- Treatment of non ferrous minerals, use of lime
in the industry of the aluminum, being the
- Treatments of diverse liquid or gaseous effluents:
industrial acids, desulfurization of the atmosphere,
inertization of urban
and industrial wastes, etc. In what refers to
the dolomitic lime,
its use is fundamental in the steel industry and
in the production
of refractories, and also like agricultural soil
improving agent. From the commercial point of view,
the lime, being such an old product has a quite stable
market; however, its great reactivity, like strong
base, may open new markets in the future that will
on the strict application of protecting measures
of the environment:
for example, the purification of gaseous effluents
in thermal centrals
(desulfurization of the atmosphere), inertization
of urban or
industrial solid residuals, treatment (correction
of the pH or neutralization)
of different urban or industrial liquid residuals.
All those new applications
could expand the traditional market of the lime
in certain measure the reduction of consumption
in steel applications
as consequence of the improved yield of the processes,
in certain measure
compensated by the increase of productivity.
© Caleras de San Cucao, S.A.