1. Frasch process

    Method of extracting sulfur from underground deposits, devised by Herman Frasch

    The Frasch process is a method to extract sulfur from underground deposits by taking advantage of the low melting point of sulfur. It is the only industrial method of recovering sulfur from elemental deposits. Most of the world's sulfur was obtained this way until the late 20th century, when sulfur recovered from petroleum and gas sources became more commonplace. In the Frasch process, superheated water is pumped into the sulfur deposit; the sulfur melts and is extracted. The Frasch process is able to produce high-purity sulfur of about 99.5%. Wikipedia

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  2. en.wikipedia.org

    The Frasch process is a method to extract sulfur from underground deposits by taking advantage of the low melting point of sulfur. It is the only industrial method of recovering sulfur from elemental deposits. [1] Most of the world's sulfur was obtained this way until the late 20th century, when sulfur recovered from petroleum and gas sources became more commonplace (see Claus process).
  3. britannica.com

    Frasch process, method of mining deep-lying sulfur invented by the German-born American chemist Herman Frasch.The process involves superheating water to about 170 °C (340 °F) and forcing it into the deposit in order to melt the sulfur (melting point of about 115 °C, or 240 °F), which is lifted to the surface by means of compressed air.The mixture of sulfur and water is then discharged into ...
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  5. generalkinematics.com

    The Sulfur Mining Process. From the late 1800s to the end of the 20th century, the Frasch process of sulfur mining was commonly used. This involved forcing super-heated water into a sulfur deposit so the sulfur would melt and come up to the surface by way of compressed air. During the latter part of the 20th century, mining or recovering sulfur ...
  6. en.wikipedia.org

    The Union Sulphur Company was an American sulfur mining corporation founded in 1896 by the famous inventor Herman Frasch.It utilized the Frasch Process to extract previously inaccessible sulfur deposits located beneath swampland in Louisiana. The Union Sulphur Company dominated the world sulfur market until its patents expired in 1908. Its success led to the development of the present-day city ...
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  8. britannica.com

    Dec 21, 2024Herman Frasch (born Dec. 25, 1851, Gaildorf, Württemberg—died May 1, 1914, Paris) was a U.S. chemist who devised the sulfur mining process named in his honour. The Frasch process, patented in 1891, was first used successfully in Louisiana and in east Texas. It made possible the exploitation of extensive sulfur deposits otherwise obtainable ...
  9. archive.epa.gov

    Sulfur is mined from both surface and underground deposits, and is recovered as a byproduct from a number of industrial processes. In sulfur mining, three techniques are applied: conventional underground methods, conventional open pit methods, and the Frasch mining method. About 90% of all sulfur mined is obtained through Frasch mining.5
  10. jxscmining.com

    Sulfur mining uses three different mining techniques: conventional underground methods, conventional open-pit methods, and the Frasch mining (or underground melting) method. In this process, hot water is forced into the sulfur deposit. The sulfur melts and is pushed to the surface where it is collected and allowed to cool and solidify, or ...
  11. link.springer.com

    Jun 3, 2023The Frasch method is a sulfur mining method by pressing superheated water from a drill hole to dissolve underground natural sulfur and then discharging it from the same drill hole to the surface for processing. The principle is to take advantage of the characteristics that natural sulfur is in a melting liquid state at 120-158 °C and has the ...
  12. wikiwand.com

    The second Frasch-process mine opened in 1912 in Brazoria County, Texas. The Gulf Coast came to dominate world sulfur production in the early and middle 20th century. [7] However, starting in the 1970s, byproduct sulfur recovery from oil and natural gas lowered the price of sulfur and drove many Frasch-process mines out of business.

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