Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB27164/55A
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Institut de Recherches de la Siderurgie Francaise IRSID
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Institut de Recherches de la Siderurgie Francaise IRSID
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Application filed by Institut de Recherches de la Siderurgie Francaise IRSIDfiledCriticalInstitut de Recherches de la Siderurgie Francaise IRSID
Publication of GB779515ApublicationCriticalpatent/GB779515A/en
C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
C22B47/00—Obtaining manganese
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Engineering & Computer Science
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Chemical & Material Sciences
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Manufacturing & Machinery
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Materials Engineering
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Mechanical Engineering
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Metallurgy
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Organic Chemistry
(AREA)
Inorganic Compounds Of Heavy Metals
(AREA)
Abstract
Arsenic is eliminated from manganese and iron ores, in which the arsenic is present mainly in the form of arsenates, by lixiviating the ores at a temperature not greater than 70 DEG C. with a mineral acid of not over 2N concentration. Lime may be added to the resulting solution to precipitate the arsenic as calcium arsenate.
GB27164/55A1954-10-131955-09-23Method of eliminating arsenic from arsenical manganese and iron ores
ExpiredGB779515A
(en)
Procedure of hydomethalurgical elimination of the phosphorus of concentrates and iron minerals. (Machine-translation by Google Translate, not legally binding)