QSL Technology
ECOBAT operates the largest lead smelter in
Germany. The primary
lead smelter BBH Stolberg relies on the environmentally friendly and energy-saving
technology of the QSL process, which
was introduced in 1990.
Here, lead is won by charging lead
concentrates and secondary raw materials to a single, self-contained aggregate,
the so-called QSL reactor. This process is acknowledged worldwide as being one
of the most modern, the most environmental friendly and the most efficient of its
kind.
The QSL technology makes it possible to win lead
from lead ores and secondary raw materials in a single encapsulated aggregate
which, in comparison to conventional technologies, has a noticeably lower specific
energy consumption. The energy requirements sank from 15.2 right down to 4.5 GJ
per ton of lead produced, by exploiting the energy of the sulphides contained
in the ores as the main source of energy.
The wide range of materials which can
be charged, underscores the efficiency of this process. The annual production
of 155,000 tonnes of lead its alloys as well as 130,000 tonnes of sulphuric
acid also set distinctive international standards.
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