TNSN92103A1 - Dispositif de controle automatique pour un filtre et un reacteur soumis a l'acide phosphorique notamment - Google Patents

Dispositif de controle automatique pour un filtre et un reacteur soumis a l'acide phosphorique notamment

Info

Publication number
TNSN92103A1
TNSN92103A1 TNTNSN92103A TNSN92103A TNSN92103A1 TN SN92103 A1 TNSN92103 A1 TN SN92103A1 TN TNSN92103 A TNTNSN92103 A TN TNSN92103A TN SN92103 A TNSN92103 A TN SN92103A TN SN92103 A1 TNSN92103 A1 TN SN92103A1
Authority
TN
Tunisia
Prior art keywords
phosphoric acid
concentration
water
filter
bread
Prior art date
Application number
TNTNSN92103A
Other languages
English (en)
Inventor
W Hilakos Stephen
Original Assignee
Imc Fertilizer Inc
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 Imc Fertilizer Inc filed Critical Imc Fertilizer Inc
Publication of TNSN92103A1 publication Critical patent/TNSN92103A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
    • C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
    • C01B25/223—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen only one form of calcium sulfate being formed
    • C01B25/225—Dihydrate process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Filtration Of Liquid (AREA)
  • Treating Waste Gases (AREA)
  • Fodder In General (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

L'INVENTION CONCERNE UNE METHODE POUR CONTROLER LA CONCENTRATION EN ACIDE PHOSPHORIQUE PRODUIT DANS UN PROCEDE DE RECUPERATION DE L'ACIDE PHOSPHORIQUE EN CONTINU QUI CONSISTE A FOURNIR UN COURANT CONSTANT D'ALIMENTATION D'UN MINERAI DE PHOSPHATE A UN RESERVOIR D'ATTAQUE OU LE MINERAI DE PHOSPHATE EST SOUMIS A UNE ATTAQUE PAR DES ACIDES SULFURIQUE ET PHOSPHORIQUE POUR PRODUIRE UNE BOUILLIE CONTENANT UNE SOLUTION AQUEUSE D'ACIDE PHOSPHORIQUE ET DU SULFATE DE CALCIUM, A FILTRER LA BOUILLIE POUR FORMER UN PAIN AQUEUX D'ACIDE PHOSPHORIQUE ET DE SULFATE DE CALCIUM, A RINCER LEDIT PAIN DU FILTRE AVEC DE L'EAU ET A AJOUTER LADITE EAU DE RINCAGE AU RESERVOIR D'ATTAQUE EN CALCULANT UNE PREMIERE QUANTITE DE L'EAU REQUISE POUR MAINTENIR UNE CONCENTRATION SOUHAITEE DE L'ACIDE PHOSPHORIQUE DANS LA BOUILLIE, LADITE CONCENTRATION SOUHAITEE ETANT CALCULEE EN SE BASANT SUR LA CONCENTRATION DU MINERAI DE PHOSPHATE DANS LE COURANT D'ALIMENTATION ET LA CAPACITE DE FILTRATION DU PAIN DE FILTRAGE, EN DETERMINANT LA QUANTITE REELLE TOTALE DE L'EAU AJOUTEE AU RESERVOIR D'ATTAQUE ET EN AJUSTANT LA QUANTITE D'EAU DE RINCAGE DE MANIERE QUE LA QUANTITE D'EAU AJOUTEE AU RESERVOIR D'ATTAQUE SOIT SUFFISANTE POUR MAINTENIR LA CONCENTRATION SOUHAITEE DE L'ACIDE PHOSPHORIQUE DANS LA BOUILLIE
TNTNSN92103A 1991-11-13 1992-11-11 Dispositif de controle automatique pour un filtre et un reacteur soumis a l'acide phosphorique notamment TNSN92103A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/791,654 US5188812A (en) 1991-11-13 1991-11-13 Automatic control system for a phosacid attack tank and filter

Publications (1)

Publication Number Publication Date
TNSN92103A1 true TNSN92103A1 (fr) 1993-06-08

Family

ID=25154370

Family Applications (1)

Application Number Title Priority Date Filing Date
TNTNSN92103A TNSN92103A1 (fr) 1991-11-13 1992-11-11 Dispositif de controle automatique pour un filtre et un reacteur soumis a l'acide phosphorique notamment

Country Status (11)

Country Link
US (1) US5188812A (fr)
EP (1) EP0612304A4 (fr)
JP (1) JPH07501041A (fr)
AU (1) AU655565B2 (fr)
BR (1) BR9206750A (fr)
CA (1) CA2123299A1 (fr)
MA (1) MA22711A1 (fr)
MX (1) MX9206466A (fr)
TN (1) TNSN92103A1 (fr)
WO (1) WO1993010040A1 (fr)
ZA (1) ZA928559B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7561943B2 (en) * 2005-12-30 2009-07-14 Halliburton Energy Services, Inc. Methods for volumetrically controlling a mixing apparatus
US7567856B2 (en) * 2005-12-30 2009-07-28 Halliburton Energy Services, Inc. Methods for determining a volumetric ratio of a material to the total materials in a mixing vessel
CN103894095A (zh) * 2014-03-21 2014-07-02 湖北柳树沟化工科技有限公司 一种调配磷酸浓度的方法及其曝气储罐

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086849A (en) * 1951-12-20 1963-04-23 Lubrizol Corp Apparatus for carrying out chemical process
US3104946A (en) * 1959-12-28 1963-09-24 Phillips Petroleum Co Manufacture of wet process phosphoric acid
US3130187A (en) * 1960-07-11 1964-04-21 Phillips Petroleum Co Automatic process control method and apparatus
GB1182786A (en) * 1966-11-18 1970-03-04 Ici Ltd Control or Alarm Method and Apparatus.
SU597632A1 (ru) * 1974-12-19 1978-03-15 Московское Пуско-Наладочное Управление, Специализированное Способ автоматического регулировани процесса подготовки разбавленной серной кислоты
GB2059277B (en) * 1979-09-25 1983-02-16 Coal Industry Patents Ltd Controlling the treatment of mixtures comprising solid and liquid
US4332590A (en) * 1981-02-20 1982-06-01 Phillips Petroleum Company Reactor control
US4485078A (en) * 1982-03-16 1984-11-27 Agrico Chemical Company Process for producing wet process phosphoric acid from phosphate rocks containing fluochlorapatite and related minerals
US4543637A (en) * 1982-07-16 1985-09-24 Phillips Petroleum Company Generation of a set point for process control
SU1112025A1 (ru) * 1982-12-28 1984-09-07 Государственный Всесоюзный Центральный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Комплексной Автоматизации Способ управлени процессом нейтрализации экстракционной фосфорной кислоты газообразным аммиаком в реакторе
US4501724A (en) * 1984-02-01 1985-02-26 Goers Associates Inc. Method for the wet process manufacture of phosphoric acid
EP0181029B1 (fr) * 1984-11-05 1991-06-12 Prayon Développement Société anonyme Procédé continu de préparation d'acide phosphorique et de sulfate de calcium
SU1411276A1 (ru) * 1985-10-17 1988-07-23 Предприятие П/Я А-1846 Способ автоматического управлени производством экстракционной фосфорной кислоты

Also Published As

Publication number Publication date
EP0612304A1 (fr) 1994-08-31
CA2123299A1 (fr) 1993-05-27
BR9206750A (pt) 1995-03-01
AU655565B2 (en) 1994-12-22
MX9206466A (es) 1993-10-01
EP0612304A4 (en) 1995-11-15
ZA928559B (en) 1993-05-05
MA22711A1 (fr) 1993-07-01
JPH07501041A (ja) 1995-02-02
WO1993010040A1 (fr) 1993-05-27
AU2932492A (en) 1993-06-15
US5188812A (en) 1993-02-23

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