Le procédé Frasch fut mis en œuvre dans les mines de Sulphur  en 1903. Grâce à l'expiration du brevet de Frasch, l'emploi du procédé se généralisa aux dômes de sel des côtes du Texas : un second dôme fut exploité par ce procédé en 1912 dans le Comté de Brazoria.
Frasch process definition, a method of mining sulfur by pumping superheated water down into the deposit, thereby melting it so that it can be pumped to the surface. See more.
Since early in the 20th Century, the Frasch process has been used as a method to extract sulphur from underground deposits, when it displaced traditional mining principally in Sicily. Most of the world's sulphur was obtained this way until the late 20th century, when sulphur's recovery from petroleum and gas sources (recovered sulphur) became ...
Sources of this element include mining of underground deposits by the Frasch process and extraction from power-plant exhaust gases. Which periodic group includes lithium, sodium, potassium, and cesium? Which periodic group includes helium, argon, krypton, and xenon? Which periodic group includes fluorine, chlorine, bromine, and iodine?
Sulfur Mining : The Frasch Process. sulfur is an essential element in our daily life. it is the 16 th element in the periodic table with standard atomic weight of 32. it is solid in ambient temperature and it has melting point of 115 centigrade. many daily goods from detergent, pesticide, to pharmaceuticals can be traced to involve sulfur in ...
Frasch process for mining sulfur. (McGraw-Hill Encyclopedia of Sci- ence and Technology.) Molten sulfur tions escape of the hot water, and molten sulfur enters the system through the lower perforations. For operation of the well, hot water at about 1600 C is passed down the annular space between the 20- and the 10-cm pipes.
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 …
Sulphur From Mines- Frasch Process. Definition: "a method of mining sulphur by pumping superheated water down into the deposit, thereby melting it so that it can be pumped to the surface." (Source- dictionary.infoplease.com) Frasch process was the most used process for sulphur extrusion through the 20th century.It was invented by Herman Frasch…
A novel system is disclosed for utilizing, in the mining of subterranean sulfur by the Frasch process, the heat of water that has accumulated underground above at least a portion of the subterranean sulfur deposit from previous mining operations wherein the underground water is brought to the surface, mixed with fresh heated water, and returned underground to melt the subterranean sulfur via a ...
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 …
The mining is done by making the holes opening towards the sediment, such as shafts, tunneling, drift, adit, and others. ~ Methods Frasch-Process: Mining sulfur by this method was to precipitate sulfur that is covered by a very thick layer of soil. Mining in this way with the injection of hot water (+ 160 ° C) into the pipe to be used.
(c) "Class III well" means a well used for in situ mining for the injection of recovery fluid for the purpose of extracting minerals, or products, including a well used in: (i) Mining of sulfur by the Frasch process; (ii) In situ mining of uranium or other metals; this category includes only in situ
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 ...
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.
https://iitutor.comProperties of SulfurSulfur is an industrially important element. Mainly used in the manufacture of sulfuric acid.Its …
This is an improvement and modification of the Frasch-type underground sulfur-mining process. The primary source of heat is steam with temperature up to 600*-800* F. which is injected into the sulfur deposit. Hot water at a temperature above 240* but not over 320* F. is injected below the steam. The steam zone is surrounded by an advancing zone of hot condensate within which melting of the ...
sulphur (symbol S) Nonmetallic element in group VI of the periodic table, known since pre-history (the biblical brimstone).Essential to animal and plant life, it may occur naturally as a free element or in sulphide minerals such as galena and iron pyrites, or in sulphate minerals such as gypsum.The main commercial source is native (free) sulphur, extracted by the Frasch process.
US2771284A US346968A US34696853A US2771284A US 2771284 A US2771284 A US 2771284A US 346968 A US346968 A US 346968A US 34696853 A US34696853 A US 34696853A US 2771284 A US2771284 A US 2771284A Authority US United States Prior art keywords sulfur pipe solution caustic soda deposit Prior art date Legal status (The legal status is an assumption and is not a …
Frasch process definition is - a method of mining deep-lying sulfur by forcing into the deposit very hot water and pumping out the sulfur thereby melted.
Frasch Process. a method of mining native sulfur in which hot water (the heat carrier) is forced into the deposit through wells to melt the sulfur, which is then brought to the surface in liquid form. The Frasch process is based on the low melting point of elementary sulfur: 112.8°–119°C.
Underground sulphur is mined by using a special technique known as "Frasch process". This process is based on the fact that sulphur has comparatively lower melting point. In the Frasch process, a hole is bored into the sulphur beds. Through this hole three concentric pipes are pushed. Through the outermost tube, superheatd water is forced down.
Answer (1 of 2): "Frasch process - Wikipedia" "The Frasch process is a method to extract sulfur from underground deposits. 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 reco...
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