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Industries & Application

Energy & Chemical

Chemicals Production

Mercury from Chemicals Production

Sulfuric acid (H2SO4) is the highest volume industrial chemical produced globally, as it is widely used in the manufacturing of fertilizers, explosives, dyes, and petroleum products. The starting material for sulfuric acid production is clean, dry sulfur dioxide (SO2) gas. This can be obtained by burning molten sulfur from metallurgical off-gases or by decomposing spent sulfuric acid.

NIC Chemicals Production
Chemicals Production Industries | NIC

Many sulfuric acid plants can be found in the vicinity of smelting plants where the off-gases can be readily used as sulfur dioxide feedstock (SO2). Such metallurgical off-gases usually contain varying concentrations of mercury from the high-temperature ore smelting process. Mercury, if it is not monitored and managed, can be detrimental to the production process (corrosion due to LME), contaminating liquid and solid waste streams, polluting the workplace and environmental air, and appearing as a contaminant in the finished product which can have additional effects anywhere it is used.



For raw water, process water, industrial wastewater, rain-runoff, seawater, acid digestion (sludges, soil, etc.)


For natural gas and other gaseous matrices


For ambient air at workplace, storage sites, etc.