BR0207118A - Prevenção ou remoção de escamas - Google Patents

Prevenção ou remoção de escamas

Info

Publication number
BR0207118A
BR0207118A BR0207118-5A BR0207118A BR0207118A BR 0207118 A BR0207118 A BR 0207118A BR 0207118 A BR0207118 A BR 0207118A BR 0207118 A BR0207118 A BR 0207118A
Authority
BR
Brazil
Prior art keywords
metal
alkaline
ore
liquid
portions
Prior art date
Application number
BR0207118-5A
Other languages
English (en)
Inventor
Anthony Peter Allen
Andrea Ruth Gerson
Jonas Addai-Mensah
Robert Trevor Jones
Li Huixin
Marek Stanislaw Zbik
Original Assignee
Ciba Spec Chem Water Treat Ltd
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 Ciba Spec Chem Water Treat Ltd filed Critical Ciba Spec Chem Water Treat Ltd
Publication of BR0207118A publication Critical patent/BR0207118A/pt

Links

Classifications

    • 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/16—Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/105—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances combined with inorganic substances
    • 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/12—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions
    • 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/12—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions
    • C22B3/14—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions containing ammonia or ammonium salts
    • 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)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Geology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

"PREVENçãO OU REMOçãO DE ESCAMAS". A presente invenção refere-se a um método para reduzir a escamação em um circuito líquido de tratamento alcalino em um processo de tratamento de minério de metal, no qual o minério de metal é digerido em um veículo alcalino em um estágio de digestão para formar uma suspensão dos sólidos de resíduo de minério em um líquido aquoso contendo valores de metal, separando os sólidos do líquido em um estágio de separação e em seguida transferindo o líquido aquoso contendo valores de metal para um circuito de recuperação de valores de metal a partir do qual os valores de metal são precipitados e separados do líquido alcalino, onde a escamação das superfícies é reduzida introduzindo-se no líquido alcalino uma quantidade eficaz de supressor de escama polimérica, caracterizado pelo fato de que o supressor polimérico compreende um sal de metal de álcali ou amónio de um polímero tendo um peso molecular médio abaixo de 50.000 e o qual é um copolímero compreendendo de 30 a 99% em peso de porções de ácido carboxílico etilenicamente não-saturado e de 1 a 70% em peso de porções de (met) acrilato de isobutila.
BR0207118-5A 2001-02-09 2002-02-04 Prevenção ou remoção de escamas BR0207118A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0103192.1A GB0103192D0 (en) 2001-02-09 2001-02-09 Scale removal or prevention
PCT/EP2002/001112 WO2002070411A1 (en) 2001-02-09 2002-02-04 Scale removal or prevention

Publications (1)

Publication Number Publication Date
BR0207118A true BR0207118A (pt) 2004-02-10

Family

ID=9908400

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0207118-5A BR0207118A (pt) 2001-02-09 2002-02-04 Prevenção ou remoção de escamas

Country Status (5)

Country Link
US (1) US20040050797A1 (pt)
BR (1) BR0207118A (pt)
CA (1) CA2436417A1 (pt)
GB (1) GB0103192D0 (pt)
WO (1) WO2002070411A1 (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7390415B2 (en) 2002-07-22 2008-06-24 Cytec Technology Corp. Method and compositions for preventing or reducing aluminosilicate scale in alkaline industrial processes
US9487408B2 (en) 2009-09-25 2016-11-08 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
ES2835705T3 (es) 2014-01-09 2021-06-23 Nalco Co Moléculas pequeñas basadas en tensioactivos para reducir la incrustación del aluminosilicato en el proceso de Bayer
AU2023214799A1 (en) * 2022-02-07 2024-08-08 Its Water Group Sa A composition for reducing the amount of sodium hydroaluminosilicate desposits and a method for obtaining the composition
CN114773519A (zh) * 2022-04-26 2022-07-22 山东泰和水处理科技股份有限公司 一种水溶性低分子量共聚物阻垢剂及其制备方法和应用

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1767422B2 (de) * 1968-05-09 1977-07-21 Nalco Chemical Co, Chicago, III (VStA) Verfahren zur herstellung von aluminiumoxid aus bauxit
CA1176031A (en) * 1980-07-23 1984-10-16 American Cyanamid Company Process for alumina recovery
US5244988A (en) * 1989-05-17 1993-09-14 Rohm And Haas Company Maleate polymerization process
US5268108A (en) * 1991-06-19 1993-12-07 Union Oil Company Of California Control of scale deposition in geothermal operations
US5314626A (en) * 1991-12-23 1994-05-24 Nalco Chemical Company Method for the alteration of siliceous materials from Bayer process liquids
US5733459A (en) * 1996-04-29 1998-03-31 Cytec Technology Corp. Use of hydroxamated polymers to alter bayer process scale

Also Published As

Publication number Publication date
GB0103192D0 (en) 2001-03-28
WO2002070411A1 (en) 2002-09-12
US20040050797A1 (en) 2004-03-18
CA2436417A1 (en) 2002-09-12

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A, 6A, 7A E 8A ANUIDADE(S).

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2029 DE 24/11/2009.