BR9302088A - Metodo para o tratamento de licor do processo bayer e metodo de reducao da formacao de depositos silicosos nos equipamentos do processo bayer - Google Patents

Metodo para o tratamento de licor do processo bayer e metodo de reducao da formacao de depositos silicosos nos equipamentos do processo bayer

Info

Publication number
BR9302088A
BR9302088A BR9302088A BR9302088A BR9302088A BR 9302088 A BR9302088 A BR 9302088A BR 9302088 A BR9302088 A BR 9302088A BR 9302088 A BR9302088 A BR 9302088A BR 9302088 A BR9302088 A BR 9302088A
Authority
BR
Brazil
Prior art keywords
bayer process
silicle
deposits
formation
reducing
Prior art date
Application number
BR9302088A
Other languages
English (en)
Inventor
Peter A Dimas
Original Assignee
Nalco Chemical 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 Chemical Co filed Critical Nalco Chemical Co
Publication of BR9302088A publication Critical patent/BR9302088A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • C01F7/47—Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C01F7/0606—Making-up the alkali hydroxide solution from recycled spent liquor

Landscapes

  • Organic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
BR9302088A 1992-08-03 1993-05-28 Metodo para o tratamento de licor do processo bayer e metodo de reducao da formacao de depositos silicosos nos equipamentos do processo bayer BR9302088A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/925,222 US5314626A (en) 1991-12-23 1992-08-03 Method for the alteration of siliceous materials from Bayer process liquids

Publications (1)

Publication Number Publication Date
BR9302088A true BR9302088A (pt) 1994-03-22

Family

ID=25451414

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9302088A BR9302088A (pt) 1992-08-03 1993-05-28 Metodo para o tratamento de licor do processo bayer e metodo de reducao da formacao de depositos silicosos nos equipamentos do processo bayer

Country Status (4)

Country Link
US (1) US5314626A (pt)
EP (1) EP0582399B1 (pt)
BR (1) BR9302088A (pt)
CA (1) CA2098442C (pt)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5415782A (en) * 1993-11-22 1995-05-16 Nalco Chemical Company Method for the alteration of siliceous materials from bayer process liquors
US5733460A (en) * 1996-04-29 1998-03-31 Cytec Technology Corp. Use of hydroxamated polymers to alter Bayer Process scale
US5733459A (en) * 1996-04-29 1998-03-31 Cytec Technology Corp. Use of hydroxamated polymers to alter bayer process scale
US5902560A (en) * 1997-08-28 1999-05-11 Nalco Chemical Company Method for inhibiting precipitation of sodium oxalate in a Bayer process liquor
US6540943B1 (en) 2000-04-03 2003-04-01 Ondeo Nadco Company Method of inhibiting corrosion of metal equipment which is cleaned with an inorganic acid
GB0103192D0 (en) * 2001-02-09 2001-03-28 Ciba Spec Chem Water Treat Ltd Scale removal or prevention
US20060124553A1 (en) * 2002-07-22 2006-06-15 Taylor Matthew L Method of preventing or reducing aluminosilicate scale in high level nuclear wastes
US7390415B2 (en) * 2002-07-22 2008-06-24 Cytec Technology Corp. Method and compositions for preventing or reducing aluminosilicate scale in alkaline industrial processes
US6814873B2 (en) * 2002-07-22 2004-11-09 Cytec Technology Corp. Method of preventing or reducing aluminosilicate scale in a bayer process
US8029752B2 (en) * 2009-04-06 2011-10-04 Nalco Company Approach in controlling DSP scale in bayer process
US9416020B2 (en) 2009-09-25 2016-08-16 Nalco Company Surfactant based small molecules for reducing aluminosilicate scale in the bayer process
US8889096B2 (en) * 2009-09-25 2014-11-18 Nalco Company Reducing aluminosilicate scale in the bayer process
US8545776B2 (en) * 2009-09-25 2013-10-01 Nalco Company Reducing aluminosilicate scale in the Bayer process
US9487408B2 (en) 2009-09-25 2016-11-08 Nalco Company Reducing aluminosilicate scale in the bayer process
US8282834B2 (en) 2009-09-25 2012-10-09 Nalco Company Di- and mono-alkoxysilane functionalized polymers and their application in the Bayer process
AU2013222328B2 (en) * 2012-02-23 2017-11-09 Nalco Company Reducing aluminosilicate scale in the Bayer process
CN102923795B (zh) * 2012-11-22 2015-11-18 赣州市豪鹏科技有限公司 硫酸镍的制备方法
CN113401927A (zh) 2013-12-24 2021-09-17 塞特工业公司 拜耳法中减少垢的方法
WO2015105723A1 (en) 2014-01-09 2015-07-16 Nalco Company Surfactant based small molecules for reducing aluminosilicate scale in the bayer process
AU2014409571B2 (en) 2014-10-21 2019-05-23 Cytec Industries Inc. Degradation-resistant scale inhibitors
WO2023148365A1 (en) * 2022-02-07 2023-08-10 Its Water Group Sa A composition for reducing the amount of sodium hydroaluminosilicate desposits and a method for obtaining the composition
CN114920273B (zh) * 2022-07-06 2023-09-26 山东南山铝业股份有限公司 一种脱除铝酸钠溶液中中高分子量有机物的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2106196A (en) * 1932-11-25 1938-01-25 Solvay Process Co Process for removing and/or preventing the deposition of scale in evaporators
US3671447A (en) * 1970-07-27 1972-06-20 Monsanto Co Methods of scale inhibition using substoichiometric amounts of amino alchols
US3671448A (en) * 1970-09-10 1972-06-20 Monsanto Co Methods of scale inhibition using substoichiometric amounts of amino alcohol and phosphonic acids
US4016075A (en) * 1975-03-17 1977-04-05 Southern Pacific Land Co. Process for removal of silica from geothermal brine
US4328106A (en) * 1980-06-13 1982-05-04 The United States Of America As Represented By The United States Department Of Energy Method for inhibiting silica precipitation and scaling in geothermal flow systems
JPS57110398A (en) * 1980-12-29 1982-07-09 Chiyoda Kagaku Kenkyusho:Kk Suspending agent for silica
US4405461A (en) * 1982-03-26 1983-09-20 Rogers Alfred N Control of silica scaling in industrial processes
US4532047A (en) * 1984-06-29 1985-07-30 Nalco Chemical Company Silica inhibition: prevention of silica deposition by addition of low molecular weight organic compounds
US5118484A (en) * 1990-08-17 1992-06-02 Alcan International Limited Desilication of bayer process solutions

Also Published As

Publication number Publication date
EP0582399A2 (en) 1994-02-09
CA2098442A1 (en) 1994-02-04
EP0582399A3 (en) 1995-02-01
EP0582399B1 (en) 1996-01-31
CA2098442C (en) 2003-12-23
US5314626A (en) 1994-05-24

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Legal Events

Date Code Title Description
EE Request for examination
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
HO Change of classification

Free format text: INT. CL. 6 C01F 7/06 E C01F 7/47

FG9A Patent or certificate of addition granted
B25D Requested change of name of applicant approved

Owner name: ONDEO NALCO COMPANY (US)

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B25G Requested change of headquarter approved

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Free format text: ALTERADA A SEDE DO TITULAR CONFORME REQUERIDO NA PETICAO NO 057700/RJ DE 02/12/2004.

B25D Requested change of name of applicant approved

Owner name: NALCO COMPANY (US)

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B25G Requested change of headquarter approved

Owner name: NALCO COMPANY (US)

Free format text: ALTERADA A SEDE DO TITULAR CONFORME REQUERIDO NA PETICAO NO 057700/RJ DE 02/12/2004.

B24C Patent annual fee: request for for restoration

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B24H Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
B24F Patent annual fee: publication cancelled

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