Process for recovering elemental phosphorus and a metal concentrate from ferrophos

Munday, Theodore F; Mohr, Richard A

Title: Process for recovering elemental phosphorus and a metal concentrate from ferrophos

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Abstract

Ferrophos is treated in a plasma furnace by maintaining an electric arc between a cathode and at least one point on the surface of the ferrophos which serves as the anode in the presence of an inert plasma gas, maintaining the average temperature of the ferrophos at about 2,000.degree. C. to about 2,700.degree. C., evolving gaseous phosphorus from the ferrophos until it contains less than about 7% by weight phosphorus, removing a purified phosphorus gas as one product and a metal concentrate having a reduced phosphorus content as a coproduct.

Inventors:

Munday, Theodore F ^[1]; Mohr, Richard A ^[2]

Kendall Park, NJ
Martinsville, NJ

Issue Date:: 1989-02-21

OSTI Identifier:: 866852

Patent Number(s):: 4806325

Application Number:: 07/219,963

Assignee:: FMC Corporation (Philadelphia, PA)

Patent Classifications (CPCs):: C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

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C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
C22C3/00 - Removing material from alloys to produce alloys of different constitution {separation of the constituents of alloys}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
C01B25/02 - Preparation of phosphorus

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C22B4/005 - {using plasma jets

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Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: process; recovering; elemental; phosphorus; metal; concentrate; ferrophos; treated; plasma; furnace; maintaining; electric; cathode; surface; serves; anode; presence; inert; gas; average; temperature; 000; degree; 700; evolving; gaseous; contains; weight; removing; purified; product; reduced; content; coproduct; plasma gas; plasma furnace; recovering elemental; metal concentrate; elemental phosphorus; /423/

Citation Formats


                    Munday, Theodore F, and Mohr, Richard A. Process for recovering elemental phosphorus and a metal concentrate from ferrophos.  United States: N. p., 1989. 
        Web.

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                    Munday, Theodore F, & Mohr, Richard A. Process for recovering elemental phosphorus and a metal concentrate from ferrophos.  United States.

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                    Munday, Theodore F, and Mohr, Richard A. Tue .  
        "Process for recovering elemental phosphorus and a metal concentrate from ferrophos".  United States.  https://www.osti.gov/servlets/purl/866852.

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@article{osti_866852,

  title        = {Process for recovering elemental phosphorus and a metal concentrate from ferrophos},

  author       = {Munday, Theodore F and Mohr, Richard A},

  abstractNote = {Ferrophos is treated in a plasma furnace by maintaining an electric arc between a cathode and at least one point on the surface of the ferrophos which serves as the anode in the presence of an inert plasma gas, maintaining the average temperature of the ferrophos at about 2,000.degree. C. to about 2,700.degree. C., evolving gaseous phosphorus from the ferrophos until it contains less than about 7% by weight phosphorus, removing a purified phosphorus gas as one product and a metal concentrate having a reduced phosphorus content as a coproduct.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1989},

  month        = {2}

}

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