BR9708865A - Processo para separação solidos/liquidos - Google Patents
Processo para separação solidos/liquidosInfo
- Publication number
- BR9708865A BR9708865A BR9708865A BR9708865A BR9708865A BR 9708865 A BR9708865 A BR 9708865A BR 9708865 A BR9708865 A BR 9708865A BR 9708865 A BR9708865 A BR 9708865A BR 9708865 A BR9708865 A BR 9708865A
- Authority
- BR
- Brazil
- Prior art keywords
- solid
- liquid separation
- separation process
- liquid
- separation
- Prior art date
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
- C01F7/0646—Separation of the insoluble residue, e.g. of red mud
- C01F7/0653—Separation of the insoluble residue, e.g. of red mud characterised by the flocculant added to the slurry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
-
- 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
- C01F7/0646—Separation of the insoluble residue, e.g. of red mud
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/0015—Obtaining aluminium by wet processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/262—Separation of sediment aided by centrifugal force or centripetal force by using a centrifuge
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1736096P | 1996-04-26 | 1996-04-26 | |
PCT/US1997/006631 WO1997041064A1 (en) | 1996-04-26 | 1997-04-21 | Concentration of solids in the bayer process |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9708865A true BR9708865A (pt) | 1999-08-03 |
Family
ID=21782145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9708865A BR9708865A (pt) | 1996-04-26 | 1997-04-21 | Processo para separação solidos/liquidos |
Country Status (4)
Country | Link |
---|---|
US (1) | US5853677A (pt) |
AU (1) | AU725997B2 (pt) |
BR (1) | BR9708865A (pt) |
WO (1) | WO1997041064A1 (pt) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69308777T2 (de) * | 1992-12-14 | 1997-07-31 | Nalco Chemical Co | Änderung der Trihydrat-Kristalle im Bayer-Verfahren |
US6726845B1 (en) * | 1998-05-25 | 2004-04-27 | Ondeo Nalco Company | Dextran starch and flocculant combination for improving red mud clarification |
HUP0103434A3 (en) * | 1998-09-25 | 2004-10-28 | Worsley Alumina Pty Ltd Collie | Improved bayer causticisation |
PL203238B1 (pl) * | 2000-05-31 | 2009-09-30 | Ciba Spec Chem Water Treat Ltd | Sposób przeróbki materiałów mineralnych |
AUPR105400A0 (en) * | 2000-10-27 | 2000-11-23 | Nauveau Technology Investments Ltd | Processes and compositions for water treatment |
JP2002137919A (ja) * | 2000-10-30 | 2002-05-14 | Showa Denko Kk | ゲーサイトを含む赤泥の分離方法 |
US6669852B2 (en) | 2000-10-30 | 2003-12-30 | Showa Denko Kabushiki Kaisha | Separation method of goethite-containing red mud |
AUPS338102A0 (en) * | 2002-07-04 | 2002-07-25 | Nauveau Technology Investments Ltd | Processes for the treatment of a waste material having a high ph and/or alkalinity |
BRPI0500403A (pt) * | 2005-01-31 | 2006-09-12 | Vale Do Rio Doce Co | método de beneficiamento de caulins finos |
BRPI0609046A2 (pt) | 2005-02-25 | 2010-11-16 | Cytec Tech Corp | método para floculação e separação de sólidos suspensos de uma corrente de processo industrial contendo sólidos suspensos, e, composição |
US9199855B2 (en) | 2010-08-09 | 2015-12-01 | Nalco Company | Chemical treatment to improve red mud separation and washing in the bayer process |
US9102995B2 (en) | 2010-08-09 | 2015-08-11 | Nalco Company | Cross-linked ethylsulfonated dihydroxypropyl cellulose |
BR112015015732B1 (pt) * | 2012-12-28 | 2021-07-06 | Nalco Company | método para tratar uma pasta do processo de bayer compreendendo licor e lama vermelha |
US10427950B2 (en) | 2015-12-04 | 2019-10-01 | Ecolab Usa Inc. | Recovery of mining processing product using boronic acid-containing polymers |
US10626031B2 (en) | 2016-08-24 | 2020-04-21 | Heritage Research Group | Treatment of sludges and flocculants using insoluble mineral colloidal suspensions |
US10662103B2 (en) * | 2016-09-26 | 2020-05-26 | Heritage Research Group | Treatment of sludges and flocculants using insoluble mineral colloidal suspensions |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR924112A (fr) * | 1946-02-27 | 1947-07-28 | Alais & Froges & Camarque Cie | Perfectionnement à la fabrication de l'alumine par le procédé bayer |
US3345344A (en) * | 1961-09-08 | 1967-10-03 | Nopco Chem Co | Process for conversion of amidoxime polymers to polyhydroxamic acids using aqueous hydrochloric acid solutions |
US3390959A (en) * | 1965-04-30 | 1968-07-02 | Nalco Chemical Co | Process of making alumina |
US3681012A (en) * | 1969-06-17 | 1972-08-01 | Nalco Chemical Co | Process for making alumina |
JPS4918558B1 (pt) * | 1970-06-13 | 1974-05-10 | ||
BR7405480D0 (pt) * | 1973-07-04 | 1975-04-15 | Love Ind Pty Ltd N B | Processo para remover materia solida em suspensao para produzir alumina |
GB1439057A (en) * | 1973-10-10 | 1976-06-09 | Allied Colloids Ltd | Flocculating agents for alkaline systems |
SU507526A1 (ru) * | 1974-06-21 | 1976-03-25 | Институт Химии Ан Узбекской Сср | Способ отстаивани красного шлама |
US4083925A (en) * | 1976-03-22 | 1978-04-11 | Martin Marietta Aluminum, Inc. | Method for removing ferrous iron from alkali metal aluminate liquor |
JPS5692116A (en) * | 1979-12-26 | 1981-07-25 | Kurita Water Ind Ltd | Settling agent for red mud |
GB2070108B (en) * | 1980-02-14 | 1984-02-08 | Elf Aquitaine | Drilling and/or completion muds |
AU536264B2 (en) * | 1980-07-23 | 1984-05-03 | Cytec Technology Corp. | Process for alumina recovery |
CA1176031A (en) * | 1980-07-23 | 1984-10-16 | American Cyanamid Company | Process for alumina recovery |
SU969669A1 (ru) * | 1981-06-26 | 1982-10-30 | Сибирский государственный проектный и научно-исследовательский институт цветной металлургии | Способ сгущени пульп,содержащих гидроокись алюмини |
FR2533572A1 (fr) * | 1982-09-28 | 1984-03-30 | Elf Aquitaine | Perfectionnements a la preparation de polymeres a fonctions hydroxamiques, nouveaux polymeres obtenus et leurs applications |
US4478795A (en) * | 1982-10-18 | 1984-10-23 | Diamond Shamrock Chemicals Company | Aluminum trihydroxide deliquoring with anionic polymers |
FR2536383A1 (fr) * | 1982-11-24 | 1984-05-25 | Elf Aquitaine | Procede et produit pour l'empechement de l'entartrage par des eaux |
FR2538717B1 (fr) * | 1982-12-31 | 1987-09-11 | Elf Aquitaine | Procede et produit pour l'inhibition du depot d'argiles dans de l'eau |
FR2577568B1 (fr) * | 1985-02-19 | 1987-12-18 | Coatex Sa | Agent fluidifiant non polluant pour fluides de forage a base d'eau douce ou saline |
US4767540A (en) * | 1987-02-11 | 1988-08-30 | American Cyanamid Company | Polymers containing hydroxamic acid groups for reduction of suspended solids in bayer process streams |
US5128420A (en) * | 1987-02-26 | 1992-07-07 | Massachusetts Institute Of Technology | Method of making hydroxamic acid polymers from primary amide polymers |
US4902751A (en) * | 1988-05-24 | 1990-02-20 | American Cyanamid Company | Preparation of modified acrylamide polymers |
AU627469B2 (en) * | 1988-07-18 | 1992-08-27 | Allied Colloids Limited | Recovery of alumina from bauxite |
GB8824176D0 (en) * | 1988-10-14 | 1988-11-23 | Allied Colloids Ltd | Recovery of alumina from bauxite |
CA1330865C (en) * | 1989-01-31 | 1994-07-26 | George Dennison Fulford | Process for producing alumina from bauxite |
US5133874A (en) * | 1990-12-24 | 1992-07-28 | American Cyanamid Company | Removal of humate from bayer alumina liquors |
US5217620A (en) * | 1992-11-23 | 1993-06-08 | Nalco Chemical Company | Clarification aid for the Bayer process |
US5601726A (en) * | 1994-06-06 | 1997-02-11 | Cytec Technology Corp. | Hydroxameted polymers in the bayer process to reduce solids |
US5539046A (en) * | 1994-11-04 | 1996-07-23 | Cytec Technology Corp. | Blends of hydroxamated polymer emulsions with polyacrylate emulsions |
US5607598A (en) * | 1995-07-14 | 1997-03-04 | Ormet Corporation | Treatment and disposal of red mud generated in the Bayer Process |
EP0859745A1 (en) * | 1995-11-07 | 1998-08-26 | Cytec Technology Corp. | Reduction of impurities in bayer process alumina trihydrate |
-
1997
- 1997-04-18 US US08/844,354 patent/US5853677A/en not_active Expired - Fee Related
- 1997-04-21 WO PCT/US1997/006631 patent/WO1997041064A1/en active Application Filing
- 1997-04-21 AU AU24630/97A patent/AU725997B2/en not_active Ceased
- 1997-04-21 BR BR9708865A patent/BR9708865A/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
US5853677A (en) | 1998-12-29 |
WO1997041064A1 (en) | 1997-11-06 |
AU725997B2 (en) | 2000-10-26 |
AU2463097A (en) | 1997-11-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
B09B | Patent application refused [chapter 9.2 patent gazette] |