The manufacture of monosodium phosphate from wet process acid by amine extraction

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dc.contributor.advisorDe Kock, J Wen_ZA
dc.contributor.advisorPaddon, Brian D Aen_ZA
dc.contributor.authorPrice, Roger Nelson Daveyen_ZA
dc.date.accessioned2016-11-16T13:23:57Z
dc.date.available2016-11-16T13:23:57Z
dc.date.issued1974en_ZA
dc.description.abstractMonosodium phosphate (NaH₂PO₄) may be prepared from a mixture of phosphoric acid and sodium chloride on the principle that an amine in organic solution can extract the elements of hydrochloric acid (HCl). This is possible because amines are more selective for hydrochloric than for phosphoric acid. If wet process phosphoric acid is used, the impurities must be separated in some way from the final product. The work described here involves a study of the distribution of phosphoric acid itself, and the impurities trivalent iron and sulphate, between aqueous solutions and kerosene solut ions of the commercial amine Amberlite LA-1. In a countercurrent extraction process, approximately twenty theoretical stages would be needed to reduce the iron concentration to the food grade level. Sulphate is held in the organic phase. Monosodium phosphate can be recovered by stripping the organic phase with a sodium chloride solution. An attempt was made to explain the extraction of phosphoric and sulphuric acids from a mixture. It was found that amine extraction followed a pattern similar to that of gas adsorption, and a modified BET equation gave a fair but not highly accurate fit of the distribution data.en_ZA
dc.identifier.apacitationPrice, R. N. D. (1974). <i>The manufacture of monosodium phosphate from wet process acid by amine extraction</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering. Retrieved from http://hdl.handle.net/11427/22558en_ZA
dc.identifier.chicagocitationPrice, Roger Nelson Davey. <i>"The manufacture of monosodium phosphate from wet process acid by amine extraction."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 1974. http://hdl.handle.net/11427/22558en_ZA
dc.identifier.citationPrice, R. 1974. The manufacture of monosodium phosphate from wet process acid by amine extraction. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Price, Roger Nelson Davey AB - Monosodium phosphate (NaH₂PO₄) may be prepared from a mixture of phosphoric acid and sodium chloride on the principle that an amine in organic solution can extract the elements of hydrochloric acid (HCl). This is possible because amines are more selective for hydrochloric than for phosphoric acid. If wet process phosphoric acid is used, the impurities must be separated in some way from the final product. The work described here involves a study of the distribution of phosphoric acid itself, and the impurities trivalent iron and sulphate, between aqueous solutions and kerosene solut ions of the commercial amine Amberlite LA-1. In a countercurrent extraction process, approximately twenty theoretical stages would be needed to reduce the iron concentration to the food grade level. Sulphate is held in the organic phase. Monosodium phosphate can be recovered by stripping the organic phase with a sodium chloride solution. An attempt was made to explain the extraction of phosphoric and sulphuric acids from a mixture. It was found that amine extraction followed a pattern similar to that of gas adsorption, and a modified BET equation gave a fair but not highly accurate fit of the distribution data. DA - 1974 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1974 T1 - The manufacture of monosodium phosphate from wet process acid by amine extraction TI - The manufacture of monosodium phosphate from wet process acid by amine extraction UR - http://hdl.handle.net/11427/22558 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/22558
dc.identifier.vancouvercitationPrice RND. The manufacture of monosodium phosphate from wet process acid by amine extraction. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 1974 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/22558en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Chemical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherChemical Engineeringen_ZA
dc.titleThe manufacture of monosodium phosphate from wet process acid by amine extractionen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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