BR9301902A - Processo para uma melhorada floculação do licor contendo lama vermelha do processo bayer, e, processo bayer aperfeiçoado no qual minério de bauxita é digerido em um meio alcalino - Google Patents

Processo para uma melhorada floculação do licor contendo lama vermelha do processo bayer, e, processo bayer aperfeiçoado no qual minério de bauxita é digerido em um meio alcalino

Info

Publication number
BR9301902A
BR9301902A BR9301902A BR9301902A BR9301902A BR 9301902 A BR9301902 A BR 9301902A BR 9301902 A BR9301902 A BR 9301902A BR 9301902 A BR9301902 A BR 9301902A BR 9301902 A BR9301902 A BR 9301902A
Authority
BR
Brazil
Prior art keywords
improved
bayer process
digested
red mud
alkaline medium
Prior art date
Application number
BR9301902A
Other languages
English (en)
Inventor
Robert P Mahoney
Lawrence J Connelly
Robert L Wetegrove
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 BR9301902A publication Critical patent/BR9301902A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
BR9301902A 1992-11-23 1993-05-14 Processo para uma melhorada floculação do licor contendo lama vermelha do processo bayer, e, processo bayer aperfeiçoado no qual minério de bauxita é digerido em um meio alcalino BR9301902A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/980,387 US5217620A (en) 1992-11-23 1992-11-23 Clarification aid for the Bayer process

Publications (1)

Publication Number Publication Date
BR9301902A true BR9301902A (pt) 1994-05-31

Family

ID=25527523

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9301902A BR9301902A (pt) 1992-11-23 1993-05-14 Processo para uma melhorada floculação do licor contendo lama vermelha do processo bayer, e, processo bayer aperfeiçoado no qual minério de bauxita é digerido em um meio alcalino

Country Status (3)

Country Link
US (1) US5217620A (pt)
AU (1) AU652692B2 (pt)
BR (1) BR9301902A (pt)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9201583D0 (en) * 1992-01-24 1992-03-11 Allied Colloids Ltd Water soluble polymers
EP0602900B1 (en) * 1992-12-14 1997-03-12 Nalco Chemical Company Trihydrate crystal modification in the bayer process
AU668029B2 (en) * 1993-05-07 1996-04-18 Nalco Australia Pty. Limited Bayer process Do not seal seling fee to be refunded
FR2708587B1 (fr) * 1993-07-29 1995-09-01 Snf Sa Procédé pour fluidifier les suspensions aqueuses de boues rouges dans la fabrication de l'alumine par la technique Bayer .
US5368745A (en) * 1993-09-02 1994-11-29 Cytec Technology Corp. Method of flocculating low metal oxide content solids in a liquid
US5534235A (en) * 1995-09-05 1996-07-09 Nalco Chemical Company Polymers containing phosphonic acid groups for the treatment of red mud in the Bayer process
US5711923A (en) * 1994-03-25 1998-01-27 Nalco Chemical Company Hydroxymethyl diphosphonated polyacrylates for red mud treatment
US5601726A (en) * 1994-06-06 1997-02-11 Cytec Technology Corp. Hydroxameted polymers in the bayer process to reduce solids
US5478477A (en) * 1994-11-04 1995-12-26 Nalco Chemical Company Use of alginates to treat bauxite red mud
AU707514B2 (en) * 1995-04-05 1999-07-15 Nalco Chemical Company Biopolymer use as a sand filter aid
US6210585B1 (en) 1995-07-26 2001-04-03 Nalco Chemical Company Fatty acid free latex polymer flocculants
US5837215A (en) * 1995-07-26 1998-11-17 Nalco Chemical Company Method of removing insoluble materials from bayer process with fatty acid and fatty acid free polymer flocculants
US5931772A (en) * 1995-10-31 1999-08-03 Kaiser Aluminum & Chemical Corp. Use of spent bauxite as an absorbent or solidification agent
US5951955A (en) * 1995-11-07 1999-09-14 Cytec Technology Corp. Concentration of solids in the Bayer process
US5853677A (en) * 1996-04-26 1998-12-29 Cytec Technology Corp. Concentration of solids by flocculating in the Bayer process
AUPP084997A0 (en) * 1997-12-11 1998-01-08 Nalco Chemical Company Improvements relating to the bayer process
US6036869A (en) * 1997-12-12 2000-03-14 Nalco Chemical Company Water continuous methyl acrylate emulsion polymers for improved flocculation of red mud in the Bayer process
US6086771A (en) * 1997-12-12 2000-07-11 Nalco Chemical Company Water continuous emulsion polymers for improving scale control in the bayer process
US6048463A (en) * 1997-12-12 2000-04-11 Nalco Chemical Company Water continuous methyl acrylate emulsion polymer combinations and methyl acrylate emulsion homopolymers for improved flocculation of red mud in 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
US6527959B1 (en) 2001-01-29 2003-03-04 Ondeo Nalco Company Method of clarifying bayer process liquors using salicylic acid containing polymers
US7138472B2 (en) * 2001-01-29 2006-11-21 Nalco Company High molecular weight polymers containing pendant salicylic acid groups for clarifying bayer process liquors
US8971913B2 (en) * 2003-06-27 2015-03-03 Qualcomm Incorporated Method and apparatus for wireless network hybrid positioning
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
US8298508B2 (en) * 2010-08-09 2012-10-30 Nalco Company Recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides
RU2013111466A (ru) * 2010-09-16 2014-10-27 Франклин Г. РИНКЕР Переработка угля с добавлением биомассы и контролем летучих веществ
CN104607322B (zh) * 2014-12-06 2018-05-29 中国铝业股份有限公司 一种处理铝土矿选矿产品的高效絮凝剂及其制备方法
US10427950B2 (en) 2015-12-04 2019-10-01 Ecolab Usa Inc. Recovery of mining processing product using boronic acid-containing polymers
CN111148722A (zh) 2017-09-26 2020-05-12 埃科莱布美国股份有限公司 用于铝土矿选矿的方法和组合物
US12497671B2 (en) 2018-09-24 2025-12-16 Ecolab Usa Inc. Methods and compositions for pre-extractive beneficiation of ores
CN116802152A (zh) 2021-02-12 2023-09-22 埃科莱布美国股份有限公司 使用硼酸官能化化合物纯化铝土矿矿石
CN115448339A (zh) * 2022-08-29 2022-12-09 中铝郑州有色金属研究院有限公司 一种粗液净化药剂及其制备方法和在氧化铝生产过程中的应用方法

Family Cites Families (10)

* 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
US3320136A (en) * 1964-05-19 1967-05-16 Kerr Mc Gee Oil Ind Inc Process for preparing a polysaccharide flocculating agent
US3406114A (en) * 1964-07-20 1968-10-15 Kerr Mc Gee Oil Ind Inc Process for flocculating finely divided solids suspended in an aqueous medium with amicrobial polysaccharide
US3397953A (en) * 1965-03-04 1968-08-20 Atlas Chem Ind Flocculating agent
US3445187A (en) * 1966-05-25 1969-05-20 Nalco Chemical Co Process for separation of red mud from dissolved alumina
US3541009A (en) * 1968-12-18 1970-11-17 Nalco Chemical Co Polymer-polysaccharide-caustic alkali compositions and process of separating solids from aqueous suspensions therewith
US3681012A (en) * 1969-06-17 1972-08-01 Nalco Chemical Co Process for making alumina
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
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

Also Published As

Publication number Publication date
US5217620A (en) 1993-06-08
AU652692B2 (en) 1994-09-01
AU3832893A (en) 1994-06-16

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

Owner name: ONDEO NALCO COMPANY (US)

Free format text: ALTERADO DE: NALCO CHEMICAL COMPANY

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 057704/RJ DE 02/12/2004.

B25D Requested change of name of applicant approved

Owner name: NALCO COMPANY (US)

Free format text: ALTERADO DE: ONDEO NALCO COMPANY

B25G Requested change of headquarter approved

Owner name: NALCO COMPANY (US)

Free format text: ALTERADA A SEDE DO TITULAR CONFORME REQUERIDO NA DA PETICAO NO 057704/RJ DE 02/12/2004.

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 14/05/2013