BRPI0913200A2 - inibição de incrustação formada com água em condições ácidaas - Google Patents

inibição de incrustação formada com água em condições ácidaas

Info

Publication number
BRPI0913200A2
BRPI0913200A2 BRPI0913200A BRPI0913200A BRPI0913200A2 BR PI0913200 A2 BRPI0913200 A2 BR PI0913200A2 BR PI0913200 A BRPI0913200 A BR PI0913200A BR PI0913200 A BRPI0913200 A BR PI0913200A BR PI0913200 A2 BRPI0913200 A2 BR PI0913200A2
Authority
BR
Brazil
Prior art keywords
water under
acidic conditions
under acidic
fouling inhibition
inhibition formed
Prior art date
Application number
BRPI0913200A
Other languages
English (en)
Inventor
N T Hay Daniel
S Gill Jasbir
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 BRPI0913200A2 publication Critical patent/BRPI0913200A2/pt

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)
  • Paper (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Cosmetics (AREA)
BRPI0913200A 2008-05-30 2009-05-26 inibição de incrustação formada com água em condições ácidaas BRPI0913200A2 (pt)

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 (en) 2008-05-30 2009-05-26 Inhibition of water formed scale in acid conditions

Publications (1)

Publication Number Publication Date
BRPI0913200A2 true BRPI0913200A2 (pt) 2019-09-24

Family

ID=41037671

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0913200A BRPI0913200A2 (pt) 2008-05-30 2009-05-26 inibição de incrustação formada com água em condições ácidaas

Country Status (7)

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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PE20121419A1 (es) * 2009-09-25 2012-10-17 Cytec Tech Corp Prevencion o reduccion de incrustaciones en la produccion de acido fosforico por via humeda
US9028787B2 (en) 2009-09-25 2015-05-12 Cytec Technology Corp. Preventing or reducing scale in wet-process phosphoric acid production
US8900539B2 (en) 2011-03-22 2014-12-02 Cytec Technology Corp. Preventing or reducing scale in wet-process phosphoric acid production
CN110396149B (zh) 2014-02-11 2023-09-05 塞特工业公司 作为抑垢剂有用的含有伯胺的聚合物
PL3256420T3 (pl) 2015-02-11 2025-09-01 Cytec Industries Inc. Zastosowanie zmodyfikowanych aminowych inhibitorów kamienia w wytwarzaniu kwasu fosforowego w procesie mokrym
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 (en) * 2020-07-22 2022-01-27 Heritage Research Group Processes and methods for removing polyphosphoric acid-containing salts and solids

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
RU2010154090A (ru) 2012-07-10
CN102046525A (zh) 2011-05-04
ZA201008228B (en) 2011-09-28
WO2009148866A1 (en) 2009-12-10
MA32320B1 (fr) 2011-05-02
US20090294372A1 (en) 2009-12-03

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2543 DE 01-10-2019 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.