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
Authority: BR; Brazil
Prior art keywords: bayer process; silicle; deposits; formation; reducing
Prior art date: 1992-08-03

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.)

1992-08-03

Filing date

1993-05-28

Publication date

1994-03-22

1993-05-28 Application filed by Nalco Chemical Co filed Critical Nalco Chemical Co

1994-03-22 Publication of BR9302088A publication Critical patent/BR9302088A/pt

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

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Life Sciences & Earth Sciences (AREA)
Geology (AREA)
Inorganic Chemistry (AREA)
Health & Medical Sciences (AREA)
General Health & Medical Sciences (AREA)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Silicates, Zeolites, And Molecular Sieves (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (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
US8545776B2 (en) *	2009-09-25	2013-10-01	Nalco Company	Reducing aluminosilicate scale in the Bayer process
US8889096B2 (en)	2009-09-25	2014-11-18	Nalco Company	Reducing aluminosilicate scale in the bayer process
US9416020B2 (en)	2009-09-25	2016-08-16	Nalco Company	Surfactant based small molecules for 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
US9487408B2 (en)	2009-09-25	2016-11-08	Nalco Company	Reducing aluminosilicate scale in the bayer process
WO2013126683A1 (en) *	2012-02-23	2013-08-29	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
RU2679251C2 (ru)	2013-12-24	2019-02-06	Сайтек Индастриз Инк.	Способ уменьшения количества твердых отложений в способе байера
AU2014376173B2 (en)	2014-01-09	2019-01-17	Nalco Company	Surfactant based small molecules for reducing aluminosilicate scale in the Bayer process
CA2967922C (en)	2014-10-21	2022-08-30	Cytec Industries Inc.	Degradation-resistant scale inhibitors
CA3243167A1 (en) *	2022-02-07	2023-08-10	Its Water Group Sa	Composition for reducing the amount of sodium hydroaluminosilicate deposits and 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

1992
- 1992-08-03 US US07/925,222 patent/US5314626A/en not_active Expired - Lifetime
1993
- 1993-05-28 BR BR9302088A patent/BR9302088A/pt not_active IP Right Cessation
- 1993-06-15 CA CA002098442A patent/CA2098442C/en not_active Expired - Fee Related
- 1993-07-20 EP EP93305701A patent/EP0582399B1/en not_active Expired - Lifetime

Also Published As

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

Publication	Publication Date	Title
BR9302088A (pt)	1994-03-22	Metodo para o tratamento de licor do processo bayer e metodo de reducao da formacao de depositos silicosos nos equipamentos do processo bayer
BR9407751A (pt)	1997-02-12	Processo para tratar metal e mistura líquida aquosa
BR9300654A (pt)	1993-08-24	Processo de tratamento de sedimento de agua residual e produto biovativo
EP0496605A3 (en)	1993-02-03	Surface treating solutions and cleaning method
GB9312821D0 (en)	1993-08-04	Process for treating and regenerating spent caustic
BR9305667A (pt)	1996-11-26	Processo e aparelho para monitoraçao de tratamento de hemodiálise
BR9407657A (pt)	1997-01-28	Processo e composiçao para o tratamento de tecido tingido
BR9305550A (pt)	1994-11-22	Processo de tratamento de um artigo oco, e, aparelhagem para tratar do mesmo
BR9204375A (pt)	1993-05-11	Composicao e processo para o tratamento de agua de refrigeracao
BR9400598A (pt)	1994-08-23	Processo e aparelho para produzir congelamento
BR9306520A (pt)	1998-09-15	Processo e composição para limpeza
BR9510088A (pt)	1998-07-14	Processo para desinfecção de água processo para desinfecção e tratamento de água artigos para desinfecção de água e remoção de substâncias prejudiciais da água
BR9303421A (pt)	1994-03-08	Processo e conjunto de agentes para aperfeicoamento da qualidade de fundo e agua em areas de agua
BR9402361A (pt)	1995-01-17	Processo e reator para o tratamento de gás de processo
BR9709131A (pt)	1999-08-03	Métodos para tratar uma corrente de licor do processo bayer para reduzir a formação de incrustação em equipamentos do processo bayere e para incrementar a remoção de incrustação de equipamento de processo bayer
IL105217A0 (en)	1993-07-08	Method and composition for treating acne
FI923179L (fi)	1994-01-11	Menetelmä ja laite mustalipeän käsittelemiseksi
EP0555996A3 (en)	1993-12-15	Methods and apparatus for treating aqueous indutrial effluent
BR9300764A (pt)	1993-09-28	Processo e agente anti-tumor
ZA941235B (en)	1994-09-20	Method of treating process water
FI950882A7 (fi)	1995-02-27	Menetelmä prosessiveden käsittelemiseksi
BR9002097A (pt)	1991-08-13	Processo e aparelho para o tratamento de metal em fusao
EP0562848A3 (en)	1996-01-17	Surface treating method
BR9306172A (pt)	1998-01-13	Processo para tratamento de metal e mistura líquida aquosa
BR9202844A (pt)	1993-03-30	Agente de tratamento de sementes e processo para tratar sementes

Legal Events

Date	Code	Title	Description
1995-12-05	EE	Request for examination
1999-05-11	FB36	Technical and formal requirements: requirement - article 36 of industrial property law
1999-11-03	FF	Decision: intention to grant
1999-11-03	HO	Change of classification	Free format text: INT. CL. 6 C01F 7/06 E C01F 7/47
2000-05-16	FG9A	Patent or certificate of addition granted
2005-12-06	B25D	Requested change of name of applicant approved	Owner name: ONDEO NALCO COMPANY (US) Free format text: ALTERADO DE: NALCO CHEMICAL COMPANY
2005-12-06	B25G	Requested change of headquarter approved	Owner name: ONDEO NALCO COMPANY (US) Free format text: ALTERADA A SEDE DO TITULAR CONFORME REQUERIDO NA PETICAO NO 057700/RJ DE 02/12/2004.
2005-12-20	B25D	Requested change of name of applicant approved	Owner name: NALCO COMPANY (US) Free format text: ALTERADO DE: ONDEO NALCO COMPANY
2005-12-20	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.
2010-12-07	B24C	Patent annual fee: request for for restoration	Free format text: REFERENTE A 17A ANUIDADE(S).
2014-08-26	B24H	Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
2020-12-08	B24F	Patent annual fee: publication cancelled	Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2277 DE 26/08/2014 POR TER SIDO INDEVIDA.
2020-12-15	B21F	Lapse acc. art. 78, item iv - on non-payment of the annual fees in time	Free format text: REFERENTE A 17A ANUIDADE.
2021-03-30	B24J	Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)	Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2606 DE 15-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.