GB1378981A - 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
GB1378981A
GB1378981A GB4425572A GB4425572A GB1378981A GB 1378981 A GB1378981 A GB 1378981A GB 4425572 A GB4425572 A GB 4425572A GB 4425572 A GB4425572 A GB 4425572A GB 1378981 A GB1378981 A GB 1378981A
Authority
GB
United Kingdom
Prior art keywords
emulsion
water
acrylic
red mud
polymer
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
GB4425572A
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 GB1378981A publication Critical patent/GB1378981A/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

Abstract

1378981 Treating red mud NALCO CHEMICAL CO 25 Sept 1972 [13 Jan 1972] 44255/72 Heading C1A Aqueous suspensions of red mud and dissolved alumina are treated to remove the suspended red mud with water-soluble acrylic polymers which contain at least 80% of acrylic acid or acrylic acid salt moieties by using as the acrylic polymer an inverted acrylic polymer latex, said latex having been produced by (A) forming a water-inoil emulsion from water which contains dissolved therein at least one monomer at least 80% by weight of which is acrylic acid or an acrylic acid salt thereby producing a monomer phase of concentration 30-70% by weight of said emulsion, an inert hydrophobic liquid, a waterin-oil emulsifying agent (e.g. hexadecyl sodium phthalate, sorbitan monooleate, sorbitan monostearate, cetyl or stearyl sodium phthalate or metal soaps), in a concentration of from 0À1-10% by weight, a free radical initiator (e.g. benzoyl peroxide, lauroyl peroxide, isobutyronitile, potassium persulphate), (B) heating said emulsion under free radical forming conditions to polymerize the monomers to form an acrylic polymer which is contained in the emulsion, (C) inverting said polymerized emulsion in water to produce an inverted acrylic polymeric latex (e.g. by addition of a surfactant to the polymer containing emulsion or to the water). The polymer may be a homopolymer selected from the group consisting of polyacrylic acid and salts thereof or may be derived from copolymerizing an alkali-metal acrylate with a different monomer comprising an ethylenically unsaturated polymerizable compound containing a hydrophilic group in a side chain (numerous examples are provided). The oil phase may be any inert hydrophobic liquid (e.g. benzene, xylene, toluene, mineral oils, kerosenes, naphthas and petrolatums. The acrylic polymer may be used in conjunction with starch and polymerization may be effected by use of high energy or ultra voilet irradiation.
GB4425572A 1972-01-13 1972-09-25 Process for the separation of red mud from alumina solutions Expired GB1378981A (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
GB1378981A true GB1378981A (en) 1975-01-02

Family

ID=22811687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4425572A Expired GB1378981A (en) 1972-01-13 1972-09-25 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164639A (en) * 1984-09-17 1986-03-26 Nalco Chemical Co Improved flocculants for bauxite (red mud)
US6328445B1 (en) 1996-04-19 2001-12-11 Q2100, Inc. Methods and apparatus for eyeglass lens curing using ultraviolet light

Families Citing this family (3)

* 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

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
FR1518054A (en) * 1966-04-12 1968-03-22 Rohm & Haas Clarification of red mud
BE694342A (en) * 1966-04-12 1967-08-21
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164639A (en) * 1984-09-17 1986-03-26 Nalco Chemical Co Improved flocculants for bauxite (red mud)
GB2164639B (en) * 1984-09-17 1989-03-30 Nalco Chemical Co Process for flocculation of bauxite (red mud)
US6328445B1 (en) 1996-04-19 2001-12-11 Q2100, Inc. Methods and apparatus for eyeglass lens curing using ultraviolet light

Also Published As

Publication number Publication date
DE2251261C3 (en) 1985-01-03
IT966361B (en) 1974-02-11
CA996285A (en) 1976-08-31
JPS5215079B2 (en) 1977-04-26
DE2251261A1 (en) 1973-07-26
JPS4879797A (en) 1973-10-25
FR2167501B1 (en) 1976-08-20
DE2251261B2 (en) 1977-11-24
BR7207168D0 (en) 1973-09-25
AU4712672A (en) 1973-12-20
ES407180A1 (en) 1976-02-01
AU443312B2 (en) 1973-12-20
FR2167501A1 (en) 1973-08-24

Similar Documents

Publication Publication Date Title
US3284393A (en) Water-in-oil emulsion polymerization process for polymerizing watersoluble monomers
US3920599A (en) Latices of dially dimethyl ammonium chloride/acrylamide polymers
US2982749A (en) Inverse suspension polymerization of water soluble unsaturated monomers
US3658772A (en) Acrylic acid polymers
US3493500A (en) Acrylic acid polymers
GB1511908A (en) High hlb latex polymers
US3657378A (en) Preparing polyacrylates
DE3067033D1 (en) Process for preparing an alkali acrylate polymer having high salt solution-absorbency and polymer produced thereby
US3405106A (en) Polymerization of water soluble vinyl monomers in presence of metal salts
DE2205908A1 (en) Process for the flocculation of solids suspended in aqueous media
ES384796A1 (en) Process for the preparation of modified emulsion polymers with oligourethane salt
CA1218498A (en) Water-soluble polymers of controlled low molecular weight
US3691124A (en) Stabilized polymer in oil latexes and suspensions
JPH0145486B2 (en)
US3068185A (en) Method for preparing aqueous dispersions of clay coated with polymers of ethylenically unsaturated monomers and aqueous film forming compositions produced thereby
Tunca et al. Polymerization of acrylamide initiated by the redox system Ce (IV)-4, 4′-azobis (4-cyano pentanol)
GB1378981A (en) Process for the separation of red mud from alumina solutions
GB841127A (en) Inverse emulsion polymerisation of water-soluble monomers
CA1038986A (en) Process for producing water-soluble polymers
US3780006A (en) Removal of monomer from acrylamide polymers with sulfur dioxide
US4419483A (en) Process for preparing water-in-oil emulsions
US3418300A (en) Inhibition of polymerization
GB1401307A (en) Method of thickening solids in aqueous waste
US3507840A (en) Method of removing water from water-soluble polymers
DE1967179C3 (en) Process for the production of an aqueous gel of a water-soluble polymer and its use

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years