2026-09-20T10:57:59Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/1310032021-07-05T14:03:20Zcom_1721.1_7582com_1721.1_7581col_1721.1_131024
Antoine Allanore.
Richardson, Caleb,1792?-1820.
Massachusetts Institute of Technology. Department of Materials Science and Engineering.
Massachusetts Institute of Technology. Department of Materials Science and Engineering
2021-06-17T17:21:09Z
2021-06-17T17:21:09Z
2020
2020
https://hdl.handle.net/1721.1/131003
1256550764
Thesis: S.B., Massachusetts Institute of Technology, Department of Materials Science and Engineering, May, 2020
Cataloged from the official PDF version of thesis.
Includes bibliographical references (pages 32-34).
A process for extracting phosphorus from fluorapatite through high temperature electrochemical means. Theoretical modelling and calculations show that P-alloys can be manufactured directly from decomposed molten fluorapatite. Nickel-phosphide is chosen as an examplary alloy both for its incredible thermodynamic stability and for its mechanical properties. Molten hydroxyapatite decomposes as it melts into two solid phosphorus rich phases, tricalcium phosphate and tetracalcium phosphate. Fluourapatite behaves in a similar manner, albeit at a higher temperature. These two calcium phosphates can be reduced to calcium oxide and oxygen in the presence of nickel, forming Ni₃P. Included in this paper is an in-depth overview of current and past phosphorus reduction methods and a discussion of their improvement.
by Caleb Richardson.
S.B.
S.B. Massachusetts Institute of Technology, Department of Materials Science and Engineering
34 pages
eng
Massachusetts Institute of Technology
MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided.
http://dspace.mit.edu/handle/1721.1/7582
Materials Science and Engineering.
Production of phosphorus alloys through thermal reactions and electrochemical reduction of molten apatite
Thesis
application/pdf
2021-06-17T17:21:09Z
Publication
Bachelor
MatSci
unknown
unknown
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<Abstract>A process for extracting phosphorus from fluorapatite through high temperature electrochemical means. Theoretical modelling and calculations show that P-alloys can be manufactured directly from decomposed molten fluorapatite. Nickel-phosphide is chosen as an examplary alloy both for its incredible thermodynamic stability and for its mechanical properties. Molten hydroxyapatite decomposes as it melts into two solid phosphorus rich phases, tricalcium phosphate and tetracalcium phosphate. Fluourapatite behaves in a similar manner, albeit at a higher temperature. These two calcium phosphates can be reduced to calcium oxide and oxygen in the presence of nickel, forming Ni₃P. Included in this paper is an in-depth overview of current and past phosphorus reduction methods and a discussion of their improvement.</Abstract>
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