ES224195A1 - A procedure for the extraction of selenio from raw materials that contain it (Machine-translation by Google Translate, not legally binding) - Google Patents

A procedure for the extraction of selenio from raw materials that contain it (Machine-translation by Google Translate, not legally binding)

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Publication number
ES224195A1
ES224195A1 ES0224195A ES224195A ES224195A1 ES 224195 A1 ES224195 A1 ES 224195A1 ES 0224195 A ES0224195 A ES 0224195A ES 224195 A ES224195 A ES 224195A ES 224195 A1 ES224195 A1 ES 224195A1
Authority
ES
Spain
Prior art keywords
oxygen
selenium
translation
extraction
machine
Prior art date
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
ES0224195A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RAGNER TANBERG
Original Assignee
RAGNER TANBERG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RAGNER TANBERG filed Critical RAGNER TANBERG
Publication of ES224195A1 publication Critical patent/ES224195A1/en
Expired legal-status Critical Current

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  • Manufacture And Refinement Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

Process for the extraction of selenium from raw materials containing it, for example, in the form of selenide, selenium, selenite, sulfur compounds and selenium, by means of an oxidation treatment, characterized by the fact that the raw material in a glass closed is subjected to a treatment with elemental oxygen maintaining an overpressure of oxygen in the reactor and in the presence of nitric acid or nitrous gases as an oxygen supply agent in an amount that, without the presence of oxygen, would be insufficient to effect a complete oxidation, oxygen-deficient nitrogen compounds formed by the oxidation process being regenerated to nitrogenous compounds with excess oxygen, such as no, by means of the oxygen present, after which the selenious forming acid is extracted from the raw material treated and worked to get selenium. (Machine-translation by Google Translate, not legally binding)
ES0224195A 1954-10-02 1955-09-29 A procedure for the extraction of selenio from raw materials that contain it (Machine-translation by Google Translate, not legally binding) Expired ES224195A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO11491954 1954-10-02

Publications (1)

Publication Number Publication Date
ES224195A1 true ES224195A1 (en) 1956-01-16

Family

ID=38525393

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0224195A Expired ES224195A1 (en) 1954-10-02 1955-09-29 A procedure for the extraction of selenio from raw materials that contain it (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES224195A1 (en)

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