Frit and color pigment - Strategic application technology
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Customer segment oil & gas refering
OIL AND GAS REFINING
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Oil and Gas Refining
Oil and Gas Refining
By definition, crude oil and natural gas are the raw materials of the petrochemical industry, with inert gases such as N2 and CO2 already used on a large-scale during their extraction. The processing of crude oil to the desired end products involves several steps. Again, gases from Messer are used in many of these process steps.
Customer process for oil and gas refining
Fluid catalytic cracking FCC
Major material conversion process in the oil processing industry
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Frit and color pigment
In the frit- and mineral colour pigment production, the raw materials of the batch are generally stored in silos. Based on the recipe the components are charged into a mixer in a pre-defined order to eliminate separation. The mixed batch is then transported to the batch charger – usually of screw type – and fed, in a certain amount for each charge, to a smelting aggregate, which may be a hearth furnace or a rotary furnace . In case of colour pigments, the smelting aggregate is generally a rotary furnace. The batch is melted in a melting area what can be air-fuel or oxy-fuel fired. After a pre-defined melting time, the material is withdrawn from the furnace through a heated throat (in case of a hearth furnace) or poured out from the drum of the rotary furnace and quenched with water on a chute or a conveyor . The powdery product is collected in big bags or – after performing a drying measure out into a paper bag.
In case of frit we distinguish three different types:
a. Ceramic/glass frit
b. Enamel frit
c. Low melting point frit
The major components, depend on the different types of frit, are:
- Feldspar, sand, calcium carbonate, dolomite, zinc oxide, zirconium compounds for ceramic/glass frit
- Sand, borax, titanium oxide, sodium nitrate and different fluorides for Enamel frit
- Red lead (Pb3O4), sand, zinc oxide, boric acid for low melting point frit
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