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ES407180A1 - Process for the separation of red mud from alumina solutions - Google Patents

Process for the separation of red mud from alumina solutions

Info

Publication number
ES407180A1
ES407180A1 ES407180A ES407180A ES407180A1 ES 407180 A1 ES407180 A1 ES 407180A1 ES 407180 A ES407180 A ES 407180A ES 407180 A ES407180 A ES 407180A ES 407180 A1 ES407180 A1 ES 407180A1
Authority
ES
Spain
Prior art keywords
water
emulsion
acrylic
acrylic acid
red mud
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES407180A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ChampionX LLC
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 ES407180A1 publication Critical patent/ES407180A1/en
Expired legal-status Critical Current

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
    • 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
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F20/00—Homopolymers and 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 a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/04—Acids, Metal salts or ammonium salts thereof
    • C08F20/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Treatment Of Sludge (AREA)
  • Polymerisation Methods In General (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

Procedure for treating aqueous suspensions of red mud and dissolved alumina, to separate the suspended red mud from them, by treating said suspensions with water-soluble acrylic polymers containing at least 80% acrylic acid halves or salts of acrylic acid; characterized in that it comprises using, as an acrylic polymer, an inverted acrylic polymer latex, said latex having been produced by stages A, formation of a water-in-oil emulsion from: 1) water containing, dissolved therein, at least one monomer consisting of at least 80% by weight in acrylic acid or in an acrylic acid salt, thereby producing a monomer phase having a concentration of 30-70 % by weight of said emulsion; 2) an inert hydrophobic liquid; 3) a water-in-oil emulsifying agent in a concentration of 0.1 to 10% by weight; 4) a free radical initiator; B. heating said emulsion under free radical forming conditions, to polymerize the monomers to form an acrylic polymer that is contained in the emulsion; and C. Polymerization of said monomers in the water-in-oil emulsion to produce a polymeric acrylic latex. (Machine-translation by Google Translate, not legally binding)
ES407180A 1972-01-13 1972-09-30 Process for the separation of red mud from alumina solutions Expired ES407180A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21758872A 1972-01-13 1972-01-13

Publications (1)

Publication Number Publication Date
ES407180A1 true ES407180A1 (en) 1976-02-01

Family

ID=22811687

Family Applications (1)

Application Number Title Priority Date Filing Date
ES407180A Expired ES407180A1 (en) 1972-01-13 1972-09-30 Process for the separation of red mud from alumina solutions

Country Status (9)

Country Link
JP (1) JPS5215079B2 (en)
AU (1) AU443312B2 (en)
BR (1) BR7207168D0 (en)
CA (1) CA996285A (en)
DE (1) DE2251261C3 (en)
ES (1) ES407180A1 (en)
FR (1) FR2167501B1 (en)
GB (1) GB1378981A (en)
IT (1) IT966361B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2800466C3 (en) * 1978-01-05 1981-12-03 Agfa-Gevaert Ag, 5090 Leverkusen Photographic material
DE2831499C3 (en) * 1978-07-14 1983-01-05 Nalco Chemical Co., 60521 Oak Brook, Ill. Process for the fluidization of concentrated aqueous suspensions of red mud
CA1176031A (en) * 1980-07-23 1984-10-16 American Cyanamid Company Process for alumina recovery
US4545902A (en) * 1984-09-17 1985-10-08 Nalco Chemical Company Flocculants for bauxite (red mud)
US6022498A (en) 1996-04-19 2000-02-08 Q2100, Inc. Methods for eyeglass lens curing using ultraviolet light

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1089173B (en) * 1957-05-31 1960-09-15 Dow Chemical Co Inverse emulsion polymerization process for the production of polymers and copolymers of water-soluble monomers
US3284393A (en) * 1959-11-04 1966-11-08 Dow Chemical Co Water-in-oil emulsion polymerization process for polymerizing watersoluble monomers
US3278506A (en) * 1961-08-21 1966-10-11 Nalco Chemical Co Water-soluble polymers and copolymers
US3397953A (en) * 1965-03-04 1968-08-20 Atlas Chem Ind Flocculating agent
US3390959A (en) * 1965-04-30 1968-07-02 Nalco Chemical Co Process of making alumina
BE694342A (en) * 1966-04-12 1967-08-21
FR1518054A (en) * 1966-04-12 1968-03-22 Rohm & Haas Clarification of red mud
US3445187A (en) * 1966-05-25 1969-05-20 Nalco Chemical Co Process for separation of red mud from dissolved alumina
DE2009218C3 (en) * 1970-02-27 1980-07-17 Roehm Gmbh, 6100 Darmstadt Process for the bead polymerization of ethylenically unsaturated monomers
US3624019A (en) * 1970-12-15 1971-11-30 Nalco Chemical Co Process for rapidly dissolving water-soluble polymers

Also Published As

Publication number Publication date
DE2251261A1 (en) 1973-07-26
JPS5215079B2 (en) 1977-04-26
GB1378981A (en) 1975-01-02
FR2167501B1 (en) 1976-08-20
DE2251261B2 (en) 1977-11-24
CA996285A (en) 1976-08-31
AU4712672A (en) 1973-12-20
JPS4879797A (en) 1973-10-25
BR7207168D0 (en) 1973-09-25
DE2251261C3 (en) 1985-01-03
AU443312B2 (en) 1973-12-20
IT966361B (en) 1974-02-11
FR2167501A1 (en) 1973-08-24

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