MA32320B1 - Inhibition du tartre forme par l'eau dans des conditions acides - Google Patents

Inhibition du tartre forme par l'eau dans des conditions acides

Info

Publication number
MA32320B1
MA32320B1 MA33373A MA33373A MA32320B1 MA 32320 B1 MA32320 B1 MA 32320B1 MA 33373 A MA33373 A MA 33373A MA 33373 A MA33373 A MA 33373A MA 32320 B1 MA32320 B1 MA 32320B1
Authority
MA
Morocco
Prior art keywords
inhibition
water under
acidic conditions
under acidic
slurry
Prior art date
Application number
MA33373A
Other languages
Arabic (ar)
English (en)
Inventor
Daniel N T Hay
Jasbir S Gill
Original Assignee
Nalco Co
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 Nalco Co filed Critical Nalco Co
Publication of MA32320B1 publication Critical patent/MA32320B1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
    • 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
    • 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
    • C01B25/234—Purification; Stabilisation; Concentration
    • C01B25/235—Clarification; Stabilisation to prevent post-precipitation of dissolved impurities

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • Cosmetics (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Paper (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

La présente invention porte sur l'inhibition de dépôts de tartre dans une bouillie ou solution acide. La présente invention utilise un mélange synthétique aqueux comprenant un phosphate, un phosphonate, un polymère anionique ou des combinaisons de ceux-ci dans la bouillie et/ou solution pour inhiber le tartre pendant le traitement d'un minerai. La production de tartre dans un environnement acide est difficile, car la solution acide neutralise la plupart des inhibiteurs connus. L'invention telle que revendiquée assure une diminution significative de la production de tartre, ce qui permet de réduire les temps d'arrêt des systèmes pour les opérations de détartrage.
MA33373A 2008-05-30 2010-11-25 Inhibition du tartre forme par l'eau dans des conditions acides MA32320B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/130,515 US20090294372A1 (en) 2008-05-30 2008-05-30 Inhibition of water formed scale in acid conditions
PCT/US2009/045105 WO2009148866A1 (fr) 2008-05-30 2009-05-26 Inhibition du tartre formé par l'eau dans des conditions acides

Publications (1)

Publication Number Publication Date
MA32320B1 true MA32320B1 (fr) 2011-05-02

Family

ID=41037671

Family Applications (1)

Application Number Title Priority Date Filing Date
MA33373A MA32320B1 (fr) 2008-05-30 2010-11-25 Inhibition du tartre forme par l'eau dans des conditions acides

Country Status (7)

Country Link
US (1) US20090294372A1 (fr)
CN (1) CN102046525A (fr)
BR (1) BRPI0913200A2 (fr)
MA (1) MA32320B1 (fr)
RU (1) RU2010154090A (fr)
WO (1) WO2009148866A1 (fr)
ZA (1) ZA201008228B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9028787B2 (en) 2009-09-25 2015-05-12 Cytec Technology Corp. Preventing or reducing scale in wet-process phosphoric acid production
MX2012003383A (es) * 2009-09-25 2012-04-10 Cytec Tech Corp Prevencion o reduccion de la formacion de escamas en la produccion del acido fosforico por un proceso en humedo.
US8900539B2 (en) 2011-03-22 2014-12-02 Cytec Technology Corp. Preventing or reducing scale in wet-process phosphoric acid production
AU2015217240B2 (en) 2014-02-11 2019-05-23 Cytec Industries Inc. Primary amine-containing polymers useful as scale inhibitors
FI3256420T3 (fi) 2015-02-11 2025-07-29 Cytec Ind Inc Modifioitujen amiinien käyttö kattilakiven estäjinä fosforihapon valmistuksessa märkämenetelmällä
US10759662B2 (en) 2018-03-12 2020-09-01 Solenis Technologies, L.P. Systems and methods for reducing formation of scale in phosphoric acid production
JOP20190235A1 (ar) * 2018-10-05 2020-04-05 Cytec Ind Inc طرق إنتاج حمض الفوسفوريك و تركيباته
BR102019025415A2 (pt) * 2019-11-29 2021-06-15 Petróleo Brasileiro S.A. - Petrobras Processo de tratamento combinado de remoção e inibição de incrustação
WO2022020313A1 (fr) * 2020-07-22 2022-01-27 Heritage Research Group Procédés et méthodes d'élimination de sels et de solides contenant de l'acide polyphosphorique

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1135951A (en) * 1965-02-12 1968-12-11 Fisons Ltd Phosphoric acid
US4221769A (en) * 1972-11-08 1980-09-09 Fisons Limited Process for preventing the formation of calcium sulphate scale
GB1451608A (en) * 1972-11-08 1976-10-06 Fisons Ltd Process for reducing calcium sulphate scale formation
SU667502A1 (en) * 1975-06-18 1979-06-15 Vitalij A Nerlov Method of obtaining extraction phosphoric acid
DE2719701C3 (de) * 1976-05-06 1986-10-02 W.R. Grace & Co., New York, N.Y. Verfahren zur Überführung von Naßphosphorsäure in eine nicht zu Ausfällungen neigende konzentrierte Phosphorsäure
SU617368A1 (ru) * 1976-05-24 1978-07-30 Ленинградский Ордена Трудового Красного Знамени Технологический Институт Им.Ленсовета Способ получени фосфорной кислоты
US4332779A (en) * 1980-11-24 1982-06-01 American Cyanamid Company Phosphoric acid filtration process
US4800071A (en) * 1988-05-03 1989-01-24 Nalco Chemical Company Filtration aids for removal of calcium solids from aqueous phosphoric acid
US5009873A (en) * 1990-01-29 1991-04-23 Nalco Chemical Company Crystal modification in wet process phosphoric acid production
US5080801A (en) * 1991-04-03 1992-01-14 Nalco Chemical Company Mixed polymers for preventing scale caused by mineral processing water
US5211928A (en) * 1991-10-15 1993-05-18 Calgon Corporation Method of improving gypsum slurry filtration in the production of phosphoric acid
US5120519A (en) * 1991-11-04 1992-06-09 Nalco Chemical Company Scale control in phosphoric acid manufacture
CN100431985C (zh) * 2005-08-31 2008-11-12 刘天暘 湿法磷酸生产用阻垢剂

Also Published As

Publication number Publication date
BRPI0913200A2 (pt) 2019-09-24
US20090294372A1 (en) 2009-12-03
RU2010154090A (ru) 2012-07-10
WO2009148866A1 (fr) 2009-12-10
ZA201008228B (en) 2011-09-28
CN102046525A (zh) 2011-05-04

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