CA2775344A1 - Preventing or reducing scale in wet-process phosphoric acid production - Google Patents

Preventing or reducing scale in wet-process phosphoric acid production Download PDF

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Publication number
CA2775344A1
CA2775344A1 CA2775344A CA2775344A CA2775344A1 CA 2775344 A1 CA2775344 A1 CA 2775344A1 CA 2775344 A CA2775344 A CA 2775344A CA 2775344 A CA2775344 A CA 2775344A CA 2775344 A1 CA2775344 A1 CA 2775344A1
Authority
CA
Canada
Prior art keywords
acid
scale
phosphoric acid
chosen
derivative
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.)
Abandoned
Application number
CA2775344A
Other languages
English (en)
French (fr)
Inventor
Sathanjheri Ravishankar
Bing Wang
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.)
Cytec Technology Corp
Original Assignee
Cytec Technology Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=43478211&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2775344(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Cytec Technology Corp filed Critical Cytec Technology Corp
Publication of CA2775344A1 publication Critical patent/CA2775344A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/22—Magnesium silicates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fuel Cell (AREA)
CA2775344A 2009-09-25 2010-09-24 Preventing or reducing scale in wet-process phosphoric acid production Abandoned CA2775344A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US24571309P 2009-09-25 2009-09-25
US61/245,713 2009-09-25
PCT/US2010/050086 WO2011038167A1 (en) 2009-09-25 2010-09-24 Preventing or reducing scale in wet-process phosphoric acid production

Publications (1)

Publication Number Publication Date
CA2775344A1 true CA2775344A1 (en) 2011-03-31

Family

ID=43478211

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2775344A Abandoned CA2775344A1 (en) 2009-09-25 2010-09-24 Preventing or reducing scale in wet-process phosphoric acid production

Country Status (17)

Country Link
EP (1) EP2480496A1 (he)
CN (1) CN102712476B (he)
AP (1) AP3403A (he)
AR (1) AR078448A1 (he)
AU (1) AU2010298172B2 (he)
BR (1) BR112012006675A2 (he)
CA (1) CA2775344A1 (he)
EA (1) EA028289B1 (he)
IL (1) IL218757A (he)
JO (1) JO3035B1 (he)
MA (1) MA33797B1 (he)
MX (1) MX2012003383A (he)
PE (1) PE20121419A1 (he)
SA (1) SA110310714B1 (he)
TN (1) TN2012000121A1 (he)
WO (1) WO2011038167A1 (he)
ZA (1) ZA201202019B (he)

Families Citing this family (7)

* 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
US8900539B2 (en) 2011-03-22 2014-12-02 Cytec Technology Corp. Preventing or reducing scale in wet-process phosphoric acid production
AP2013007112A0 (en) * 2011-03-22 2013-09-30 Cytec Tech Corp Preventing or reducing scale in wet-process phosphoric acid production
PL3105367T3 (pl) 2014-02-11 2021-05-31 Cytec Industries Inc. Polimery zawierające aminy pierwszorzędowe użyteczne jako inhibitory tworzenia się kamienia
MX2017010356A (es) * 2015-02-11 2018-01-23 Cytec Ind Inc Aminas modificadas utiles como inhibidores de incrustaciones en la produccion del acido fosforico de proceso humedo.
US10759662B2 (en) 2018-03-12 2020-09-01 Solenis Technologies, L.P. Systems and methods for reducing formation of scale in phosphoric acid production
CN115571863B (zh) * 2022-10-08 2024-02-09 广东邦普循环科技有限公司 一种湿法磷酸溶垢剂及其制备方法和应用

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4049774A (en) * 1970-11-12 1977-09-20 Fisons Limited Process for reducing formation of gypsum scale durng the washing of calcium sulphate hemihydrate crystals
US3796790A (en) * 1972-04-25 1974-03-12 Canadian Patents Dev Process for recovering concentrated phosphoric acid
GB1433123A (en) * 1972-05-05 1976-04-22 Fisons Ltd Process for inhibiting scale
GB1451608A (en) * 1972-11-08 1976-10-06 Fisons Ltd Process for reducing calcium sulphate scale formation
US4327061A (en) * 1979-02-21 1982-04-27 Kerr-Mcgee Chemical Corporation Method of stabilizing wet process phosphoric acid for solvent extraction
DE3039187C2 (de) 1980-10-17 1982-12-23 Hoechst Ag, 6000 Frankfurt Verwendung von geglätteten Rohrleitungen und Apparateteilen
CA1337323C (en) 1986-12-08 1995-10-17 Zahid Amjad Treatment of aqueous medium with copolymers containing acrylamidoalkane sulfonic acid
CN1068312A (zh) * 1991-07-09 1993-01-27 化学工业部天津化工研究院 海水循环冷却水缓蚀阻垢剂
US5120519A (en) * 1991-11-04 1992-06-09 Nalco Chemical Company Scale control in phosphoric acid manufacture
EP0677485A1 (de) 1994-03-22 1995-10-18 Faborga S.A. Mittel zur Verhinderung von Ausscheidungen in Prozesswässern
CN1179138A (zh) * 1995-03-17 1998-04-15 巴科曼实验室国际公司 工业含水系统中水垢的控制
JP2002263690A (ja) 2001-03-07 2002-09-17 Kurita Water Ind Ltd スケール付着防止剤及びスケール付着防止法
CN1305786C (zh) * 2004-08-13 2007-03-21 北京斯伯乐科学技术研究院 一种用于乙烯装置裂解气压缩机的阻垢剂及其使用方法
CN1321057C (zh) * 2005-02-01 2007-06-13 云南三环化工有限公司 一种改善二水物湿法磷酸生产的方法
GB2424876B (en) 2005-04-06 2011-03-23 Rhodia Uk Ltd Improved analysis of polymeric scale inhibitors
CN100431985C (zh) * 2005-08-31 2008-11-12 刘天暘 湿法磷酸生产用阻垢剂
WO2007080811A1 (ja) * 2006-01-11 2007-07-19 Kurita Water Industries Ltd. スケール防止剤及びスケール防止方法
US20090294372A1 (en) * 2008-05-30 2009-12-03 Gill Jasbir S Inhibition of water formed scale in acid conditions

Also Published As

Publication number Publication date
AU2010298172A1 (en) 2012-04-19
ZA201202019B (en) 2013-08-28
EA028289B1 (ru) 2017-10-31
EP2480496A1 (en) 2012-08-01
AP2012006168A0 (en) 2012-04-30
EA201270464A1 (ru) 2012-10-30
IL218757A0 (en) 2012-06-28
MX2012003383A (es) 2012-04-10
MA33797B1 (fr) 2012-12-03
IL218757A (he) 2017-09-28
AU2010298172B2 (en) 2014-07-31
JO3035B1 (ar) 2016-09-05
WO2011038167A1 (en) 2011-03-31
AR078448A1 (es) 2011-11-09
SA110310714B1 (ar) 2014-11-16
AP3403A (en) 2015-08-31
TN2012000121A1 (en) 2013-09-19
BR112012006675A2 (pt) 2016-05-10
PE20121419A1 (es) 2012-10-17
CN102712476A (zh) 2012-10-03
CN102712476B (zh) 2019-03-12

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Legal Events

Date Code Title Description
FZDE Discontinued

Effective date: 20160926