BR112015015732A2 - tratamento químico para melhorar a separação de lama vermelha e lavagem no processo de bayer - Google Patents

tratamento químico para melhorar a separação de lama vermelha e lavagem no processo de bayer

Info

Publication number
BR112015015732A2
BR112015015732A2 BR112015015732A BR112015015732A BR112015015732A2 BR 112015015732 A2 BR112015015732 A2 BR 112015015732A2 BR 112015015732 A BR112015015732 A BR 112015015732A BR 112015015732 A BR112015015732 A BR 112015015732A BR 112015015732 A2 BR112015015732 A2 BR 112015015732A2
Authority
BR
Brazil
Prior art keywords
red mud
bayer process
washing
chemical treatment
solution
Prior art date
Application number
BR112015015732A
Other languages
English (en)
Other versions
BR112015015732B1 (pt
Inventor
Urbani Carl
Wang Jing
D Kildea John
Chester Ryan
Original Assignee
Nalco 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
Priority claimed from US13/729,744 external-priority patent/US9199855B2/en
Application filed by Nalco Co filed Critical Nalco Co
Publication of BR112015015732A2 publication Critical patent/BR112015015732A2/pt
Publication of BR112015015732B1 publication Critical patent/BR112015015732B1/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
    • C02F1/56—Macromolecular compounds
    • 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
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L5/00—Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
    • C08L5/02—Dextran; Derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
    • 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
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
    • 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)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treatment Of Sludge (AREA)

Abstract

resumo “tratamento químico para melhorar a separação de lama vermelha e lavagem no processo de bayer” a invenção fornece métodos e composições para melhorar a reologia de lama vermelha removida da solução do processo de bayer. o método inclui a adição de um floculante e de um polissacarídeo reticulado à solução. esta combinação separa a lama vermelha da solução, mas também evita que a lama vermelha se torne demasiadamente espessa. evitando-se espessura excessiva, o método permite a formação de quantidades extremamente densas de lama vermelha mesmo em sedimentadores primários porque a lama vermelha densa ainda pode escoar. como um resultado um usuário pode apresentar simultaneamente tanto uma fácil manipulação da lama vermelha como também altas taxas de recuperação de alumina valiosa e de cáustico provenientes da lama vermelha.
BR112015015732-7A 2012-12-28 2013-12-16 método para tratar uma pasta do processo de bayer compreendendo licor e lama vermelha BR112015015732B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13/729,744 2012-12-28
US13/729,744 US9199855B2 (en) 2010-08-09 2012-12-28 Chemical treatment to improve red mud separation and washing in the bayer process
PCT/US2013/075417 WO2014105484A1 (en) 2012-12-28 2013-12-16 Chemical treatement to improve red mud separation and washing in the bayer process

Publications (2)

Publication Number Publication Date
BR112015015732A2 true BR112015015732A2 (pt) 2017-07-11
BR112015015732B1 BR112015015732B1 (pt) 2021-07-06

Family

ID=51021934

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112015015732-7A BR112015015732B1 (pt) 2012-12-28 2013-12-16 método para tratar uma pasta do processo de bayer compreendendo licor e lama vermelha

Country Status (8)

Country Link
EP (1) EP2938575B1 (pt)
JP (1) JP6351619B2 (pt)
CN (1) CN104870373B (pt)
AU (1) AU2013368247B2 (pt)
BR (1) BR112015015732B1 (pt)
CA (1) CA2892628C (pt)
ES (1) ES2859723T3 (pt)
WO (1) WO2014105484A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10427950B2 (en) * 2015-12-04 2019-10-01 Ecolab Usa Inc. Recovery of mining processing product using boronic acid-containing polymers
WO2017193162A1 (en) * 2016-05-09 2017-11-16 SNF (Australia) Pty Ltd Methods for the treatment of red mud slurries
CN110950521B (zh) * 2019-11-08 2021-11-09 威海汉邦生物环保科技股份有限公司 一种改进赤泥沉降分离效果的化学处理方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1154993A (en) * 1967-01-18 1969-06-11 Colonial Sugar Refining Co Improvements in a process for the preparation of High Viscosity Gums
GB8824176D0 (en) * 1988-10-14 1988-11-23 Allied Colloids Ltd Recovery of alumina from bauxite
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
AU707514B2 (en) * 1995-04-05 1999-07-15 Nalco Chemical Company Biopolymer use as a sand filter aid
SE9601368D0 (sv) * 1996-04-11 1996-04-11 Pharmacia Biotech Ab Process for the production of a porous cross-linked polysaccharide gel
US5853677A (en) * 1996-04-26 1998-12-29 Cytec Technology Corp. Concentration of solids by flocculating 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
JP4184634B2 (ja) * 2001-08-07 2008-11-19 昭和電工株式会社 水酸化アルミニウムの製造方法
AU2008242419B2 (en) * 2007-04-20 2013-03-28 Cytec Technology Corp. Use of silicon-containing polymers to improve red mud flocculation in the Bayer process
CN102105501B (zh) * 2008-07-30 2013-05-15 罗地亚管理公司 交联多糖颗粒的制备方法
US8298508B2 (en) * 2010-08-09 2012-10-30 Nalco Company Recovery of alumina trihydrate during the bayer process using cross-linked polysaccharides

Also Published As

Publication number Publication date
JP6351619B2 (ja) 2018-07-04
BR112015015732B1 (pt) 2021-07-06
CA2892628C (en) 2021-08-10
JP2016508068A (ja) 2016-03-17
AU2013368247B2 (en) 2017-03-09
EP2938575A4 (en) 2016-07-27
CN104870373A (zh) 2015-08-26
ES2859723T3 (es) 2021-10-04
EP2938575B1 (en) 2021-01-20
AU2013368247A1 (en) 2015-05-21
CN104870373B (zh) 2018-08-28
CA2892628A1 (en) 2014-07-03
EP2938575A1 (en) 2015-11-04
WO2014105484A1 (en) 2014-07-03

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06I Publication of requirement cancelled [chapter 6.9 patent gazette]

Free format text: ANULADA A PUBLICACAO CODIGO 6.6.1 NA RPI NO 2462 DE 13/03/2018 POR TER SIDO INDEVIDA.

B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 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 16/12/2013, OBSERVADAS AS CONDICOES LEGAIS.