BR112013005398A2 - "método para aumentar a estabilidade de um licor do processo bayer" - Google Patents

"método para aumentar a estabilidade de um licor do processo bayer"

Info

Publication number
BR112013005398A2
BR112013005398A2 BR112013005398A BR112013005398A BR112013005398A2 BR 112013005398 A2 BR112013005398 A2 BR 112013005398A2 BR 112013005398 A BR112013005398 A BR 112013005398A BR 112013005398 A BR112013005398 A BR 112013005398A BR 112013005398 A2 BR112013005398 A2 BR 112013005398A2
Authority
BR
Brazil
Prior art keywords
stability
increasing
liquor
bayer
bayer liquor
Prior art date
Application number
BR112013005398A
Other languages
English (en)
Other versions
BR112013005398B1 (pt
Inventor
Glen Alan Hanna
Felicia Ai-Nee Lee
Mitch Loan
Original Assignee
Alcoa Australia
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
Priority claimed from AU2010903987A external-priority patent/AU2010903987A0/en
Application filed by Alcoa Australia filed Critical Alcoa Australia
Publication of BR112013005398A2 publication Critical patent/BR112013005398A2/pt
Publication of BR112013005398B1 publication Critical patent/BR112013005398B1/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
    • C01F7/04—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
    • C01F7/0666—Process control or regulation
    • 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
    • C01F7/046—Stabilisation of aluminates
    • 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
    • C01F7/14—Aluminium oxide or hydroxide from alkali metal aluminates
    • C01F7/144—Aluminium oxide or hydroxide from alkali metal aluminates from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Alcoholic Beverages (AREA)

Abstract

método para aumentar a estabilidade de um licor do processo bayer, trata-se a presente invenção de um método para aumentar a estabilidade de um licor do processo bayer, que compreende pelo menos a seguinte etapa: - colocar o licor do processo bayer em contato com uma quantidade em ppm de um dextrano de baixo peso molecular. também é descrito um método para controlar a precipitação de compostos contendo alumínio em um licor do processo bayer.
BR112013005398-4A 2010-09-06 2011-09-05 métodos para aumentar a estabilidade de um licor e para controlar a precipitação de compostos contendo alumínio de licores do processo bayer BR112013005398B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU2010903987 2010-09-06
AU2010903987A AU2010903987A0 (en) 2010-09-06 Method for Increasing the Stability of a Bayer Process Liquor
PCT/AU2011/001143 WO2012031316A1 (en) 2010-09-06 2011-09-05 Method of increasing the stability of a bayer process liquor

Publications (2)

Publication Number Publication Date
BR112013005398A2 true BR112013005398A2 (pt) 2019-05-28
BR112013005398B1 BR112013005398B1 (pt) 2021-05-04

Family

ID=45810011

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112013005398-4A BR112013005398B1 (pt) 2010-09-06 2011-09-05 métodos para aumentar a estabilidade de um licor e para controlar a precipitação de compostos contendo alumínio de licores do processo bayer

Country Status (4)

Country Link
US (1) US9187337B2 (pt)
AU (1) AU2011301134B2 (pt)
BR (1) BR112013005398B1 (pt)
WO (1) WO2012031316A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9102995B2 (en) 2010-08-09 2015-08-11 Nalco Company Cross-linked ethylsulfonated dihydroxypropyl cellulose
US9199855B2 (en) 2010-08-09 2015-12-01 Nalco Company Chemical treatment to improve red mud separation and washing in the bayer process
CN105271335B (zh) * 2015-11-16 2016-11-16 中南大学 一种氧化铝双流法溶出过程入口矿浆和碱液的配比优化方法
US10427950B2 (en) 2015-12-04 2019-10-01 Ecolab Usa Inc. Recovery of mining processing product using boronic acid-containing polymers
US20190084837A1 (en) * 2017-09-18 2019-03-21 Cytec Industries Inc. Bauxite grinding aids and methods of use
CN111217383B (zh) * 2020-03-11 2022-06-17 山东省化工研究院 一种提高铝酸钠溶液稳定性的方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3085853A (en) * 1958-12-23 1963-04-16 Dow Chemical Co Method of employing dextrans
CA825234A (en) 1966-06-06 1969-10-14 G. Flock Howard Flocculation and filtration of alumina trihydrate
GB8824176D0 (en) * 1988-10-14 1988-11-23 Allied Colloids Ltd Recovery of alumina from bauxite
GB8907995D0 (en) * 1989-04-10 1989-05-24 Allied Colloids Ltd Recovery of alumina trihydrate in the bayer process
US5106599A (en) * 1990-02-06 1992-04-21 Nalco Chemical Company Alumina crystal growth additive
EP0465055B1 (en) 1990-06-25 1997-04-16 Nalco Australia Pty. Limited Crystal growth modification
US5091159A (en) * 1991-06-10 1992-02-25 Nalco Chemical Company Use of dextran as a filtration aid for thickener overflow filtration in Kelly filters in the Bayer process
US5387405A (en) * 1992-03-25 1995-02-07 Nalco Chemical Company Bayer liquor polishing
AU707514B2 (en) 1995-04-05 1999-07-15 Nalco Chemical Company Biopolymer use as a sand filter aid
AUPP084997A0 (en) * 1997-12-11 1998-01-08 Nalco Chemical Company Improvements relating to the bayer process
AU737191B2 (en) 1997-12-11 2001-08-09 Nalco Chemical Company Improvements relating to the Bayer process
US6726845B1 (en) * 1998-05-25 2004-04-27 Ondeo Nalco Company Dextran starch and flocculant combination for improving red mud clarification
AUPP825899A0 (en) * 1999-01-20 1999-02-11 Nalco Chemical Company Filtration aid for the bayer process
AUPQ889100A0 (en) 2000-07-20 2000-08-10 Worsley Alumina Pty Ltd Improved process for filter aid production in alumina refineries
US9284625B2 (en) 2007-11-20 2016-03-15 Nalco Company Use of polyols as scale control reagents in the mining processes
WO2009085514A2 (en) 2007-12-28 2009-07-09 Cytec Technology Corp. Reducing autoprecipitation in bayer liquor

Also Published As

Publication number Publication date
BR112013005398B1 (pt) 2021-05-04
AU2011301134A1 (en) 2013-03-14
US9187337B2 (en) 2015-11-17
WO2012031316A1 (en) 2012-03-15
AU2011301134B2 (en) 2015-05-07
US20140010742A1 (en) 2014-01-09

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Legal Events

Date Code Title Description
B12F Other appeals [chapter 12.6 patent gazette]
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 05/09/2011, OBSERVADAS AS CONDICOES LEGAIS.