Sulfur and sulfuric acid

Frasch process

Method to extract sulfur from underground deposits by taking advantage of the low melting point of sulfur

3/4

The fraction of all the sulfur consumed in the United States converted into sulfuric acid

Calcium sulfate and coal

The two most plentiful and widely distributed among the sulfur sources, but sulfur recovery can be costly

90%

The percentage of all the elemental sulfur of the world obtained from the sulfur bearing porous limestones in the saltdome cap rocks of Texas and Louisiana

Ferilizer manufacture

The greatest single use of sulfuric acid

Contact and Chamber process

The main procedures in the manufacturing of sulfuric acid

Burner gas

To prevent corrosion and improve water absorption in sulfure or sulfide burning processes, air is dried using towers eith 95-98% sulfuric acid

Sulfur trioxide absorbers

Sulfuric acid with a concentration of 98.5-99% is best for absorption due to its low vapor pressure, used in the final absorber to handle waste gas

Catalyst

The function to increase the rate of reactions

Zeolite

Not a carrier of platinum catalysts used in contact process