Chemistry:Paradas method
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Short description: Process to extract nitrate from caliche by leaching
The paradas method (Spanish: método de paradas, sistema de paradas) was a process to extract nitrate from caliche by leaching. In this method caliche was boiled in water in large pans called "paradas".[1] It was a firewood and labour-intensive process. The paradas method was phased out in the 1850s by a new system invented by Pedro Gamboni which required less fuel and labour.[2]
The paradas method led to a massive deforestation of Pampa del Tamarugal around La Tirana and Canchones and some areas to the south of these localities.[3]
References
- ↑ Castro Castro, Luis; Figueroa Cerna, Carolina; Hernández Opazo, Héctor (2015). "Quehacer y planteamientos del cura Luis Friedrich en el oasis de Pica durante la chilenización de Tarapacá, 1903-1907" (in Spanish). Revista de Historia Regional y Local 7 (13): 224–257.
- ↑ Garrido Lepe, Martín (2018). "El consumo de energía en la minería chilena. 1906 - 2013". Historia: 131–161.
- ↑ Castro Castro, Luis (2020-07-01). "El bosque de la Pampa del Tamarugal y la industria salitrera: El problema de la deforestación, los proyectos para su manejo sustentable y el debate político (Tarapacá, Peru-Chile 1829-1941)" (in Spanish). Scripta Nova (Universitat de Barcelona) XXIV (641). https://revistes.ub.edu/index.php/ScriptaNova/article/viewFile/26507/31629.
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