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ES2013211A6 - Procedimiento de obtencion de acido fosforico a partir de roca fosforica por via humeda. - Google Patents

Procedimiento de obtencion de acido fosforico a partir de roca fosforica por via humeda.

Info

Publication number
ES2013211A6
ES2013211A6 ES8902438A ES8902438A ES2013211A6 ES 2013211 A6 ES2013211 A6 ES 2013211A6 ES 8902438 A ES8902438 A ES 8902438A ES 8902438 A ES8902438 A ES 8902438A ES 2013211 A6 ES2013211 A6 ES 2013211A6
Authority
ES
Spain
Prior art keywords
phosphoric acid
phosphorus
solvent
extracted
extraction
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 - Lifetime
Application number
ES8902438A
Other languages
English (en)
Inventor
Nogueira Eduardo Diaz
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.)
Ercros SA
Original Assignee
Ercros SA
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 Ercros SA filed Critical Ercros SA
Priority to ES8902438A priority Critical patent/ES2013211A6/es
Publication of ES2013211A6 publication Critical patent/ES2013211A6/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Extraction Or Liquid Replacement (AREA)

Abstract

ESTE PROCEDIMIENTO DE OBTENCION DE ACIDO FOSFORICO A PARTIR DE ROCA FOSFORICA POR VIA HUMEDA, UTILIZA COMO AGENTE DE ATAQUE INTERMEDIO DE LA ROCA FOSFORICA EL ACIDO CLORHIDRICO O MEZCLA DE ACIDO CLORHIDRICO Y ACIDO FOSFORICO. REALIZANDOSE LA REACCION PREFERIBLEMENTE A TEMPERATURA AMBIENTE Y PRESION ATMOSFERICA. EL ACIDO FOSFORICO OBTENIDO SE EXTRAE CON UN DISOLVENTE ORGANICO SELECTIVO DEL CUAL SE SEPARA POR REEXTRACCION CON AGUA EN CONTRACORRIENTE A TEMPERATURA MODERADA. LA FASE ACUOSA DE LA EXTRACCION CON DISOLVENTE QUE CONTIENE FUNDAMENTALMENTE CLORURO CALCICO, ACIDO FOSFORICO NO EXTRAIDO Y PARTE DEL DISOLVENTE EMPLEADO SE TRATA CON ACIDO SULFURICO, PRECIPITANDO EL SULFATO CALCICO, QUE SE SEPARA POR FILTRACION, Y REGENERANDO EL ACIDO CLORHIDRICO QUE CONJUNTAMENTE CON EL FOSFORICO NO EXTRAIDO, SE RECICLA A LA ETAPA DE REACCION. CON ELLO SE CONSIGUE RECUPERAR EL P2O5 DISUELTO, PARTE DEL DISOLVENTE DE EXTRACCION, ELIMINAR EFLUENTES LIQUIDOS Y PODER EMPLEAR ROCA FOSFORICA DE CUALQUIER PROCEDENCIA Y RIQUEZA, NOSIENDO NECESARIA UNA GRANULOMETRIA FINA, POR LO QUE NO SE PRECISA UNA MOLIENDA CONVENCIONAL.
ES8902438A 1989-07-11 1989-07-11 Procedimiento de obtencion de acido fosforico a partir de roca fosforica por via humeda. Expired - Lifetime ES2013211A6 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES8902438A ES2013211A6 (es) 1989-07-11 1989-07-11 Procedimiento de obtencion de acido fosforico a partir de roca fosforica por via humeda.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES8902438A ES2013211A6 (es) 1989-07-11 1989-07-11 Procedimiento de obtencion de acido fosforico a partir de roca fosforica por via humeda.

Publications (1)

Publication Number Publication Date
ES2013211A6 true ES2013211A6 (es) 1990-04-16

Family

ID=8263007

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8902438A Expired - Lifetime ES2013211A6 (es) 1989-07-11 1989-07-11 Procedimiento de obtencion de acido fosforico a partir de roca fosforica por via humeda.

Country Status (1)

Country Link
ES (1) ES2013211A6 (es)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002012120A1 (fr) * 2000-08-03 2002-02-14 Ecophos Procede de production d'acide phosphorique
US7361323B2 (en) 2002-06-28 2008-04-22 Ecophos Method for the production of phosphoric acid and/or a salt thereof and products thus obtained
US7687046B2 (en) 2002-06-28 2010-03-30 Ecophos Method of producing phosphoric acid salt
US7824634B2 (en) 2003-12-24 2010-11-02 Ecophos Method for etching phosphate ores

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002012120A1 (fr) * 2000-08-03 2002-02-14 Ecophos Procede de production d'acide phosphorique
BE1013634A3 (fr) * 2000-08-03 2002-05-07 Ecophos Procede de production d'acide phosphorique.
US7361323B2 (en) 2002-06-28 2008-04-22 Ecophos Method for the production of phosphoric acid and/or a salt thereof and products thus obtained
US7687046B2 (en) 2002-06-28 2010-03-30 Ecophos Method of producing phosphoric acid salt
US7824634B2 (en) 2003-12-24 2010-11-02 Ecophos Method for etching phosphate ores

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Legal Events

Date Code Title Description
SA6 Expiration date (snapshot 920101)

Free format text: 2009-07-11

FD1A Patent lapsed

Effective date: 20040601