ES339798A1 - Treatment of Impure Alumina - Google Patents

Treatment of Impure Alumina

Info

Publication number
ES339798A1
ES339798A1 ES339798A ES339798A ES339798A1 ES 339798 A1 ES339798 A1 ES 339798A1 ES 339798 A ES339798 A ES 339798A ES 339798 A ES339798 A ES 339798A ES 339798 A1 ES339798 A1 ES 339798A1
Authority
ES
Spain
Prior art keywords
gaseous
hydrochloric acid
hydrogen chloride
precipitation
washing stages
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
ES339798A
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.)
Pechiney SA
Original Assignee
Pechiney SA
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 Pechiney SA filed Critical Pechiney SA
Publication of ES339798A1 publication Critical patent/ES339798A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/04—Clay; Kaolin
    • C04B33/06—Rendering lime harmless
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/16—Clays or other mineral silicates
    • 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
    • C01F7/30—Preparation of aluminium oxide or hydroxide by thermal decomposition or by hydrolysis or oxidation of aluminium compounds
    • C01F7/306—Thermal decomposition of hydrated chlorides, e.g. of aluminium trichloride hexahydrate
    • 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
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • 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
    • C01F7/48—Halides, with or without other cations besides aluminium
    • C01F7/56—Chlorides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/30—Drying methods
    • 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
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Alumina is purified by dissolution in sulphuric acid at the boiling temperature, followed by addition of aqueous hydrochloric acid and gaseous hydrogen chloride to the solution to precipitate hydrated aluminium chloride which is separated by filtration or centrifuging, washed with hydrochloric acid and calcined to produce pure alumina. As shown, the mother liquor from the separation is distilled and concentrated to provide recycle sulphuric acid and gaseous and aqueous hydrogen chloride for the precipitation and washing stages, respectively, and the gaseous and aqueous hydrogen chloride from the calcination are used for the precipitation and washing stages respectively the hydrochloric acid from the washing stages being used in the precipitation stage.
ES339798A 1966-04-28 1967-04-26 Treatment of Impure Alumina Expired ES339798A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR59530 1966-04-28

Publications (1)

Publication Number Publication Date
ES339798A1 true ES339798A1 (en) 1968-08-16

Family

ID=8607379

Family Applications (1)

Application Number Title Priority Date Filing Date
ES339798A Expired ES339798A1 (en) 1966-04-28 1967-04-26 Treatment of Impure Alumina

Country Status (11)

Country Link
AT (1) AT270588B (en)
BE (1) BE697522A (en)
CH (1) CH475166A (en)
CS (1) CS150190B2 (en)
DE (1) DE1592155A1 (en)
ES (1) ES339798A1 (en)
FR (1) FR1554586A (en)
GB (1) GB1190848A (en)
GR (1) GR33674B (en)
LU (1) LU53506A1 (en)
NL (1) NL6705932A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2658369A1 (en) * 1976-03-11 1977-09-15 Texaco Development Corp CATALYST CARRIER, METHOD FOR ITS MANUFACTURING AND USE
SE7703590L (en) * 1976-04-02 1977-10-03 Inst Atomenergi WAY TO EXTRACT ALUMINUM OXIDE
FR2381717A1 (en) * 1977-02-28 1978-09-22 Pechiney Aluminium PROCESS FOR OBTAINING PURE ALUMINA BY ACID ATTACK OF ALUMINOUS ORES CONTAINING OTHER ELEMENTS
US4107266A (en) * 1977-07-22 1978-08-15 The United States Of America As Represented By The Secretary Of The Interior Production of pure alumina from iron contaminated sulfate liquors
FR2426019A1 (en) * 1978-05-18 1979-12-14 Pechiney Aluminium CONTINUOUS PROCESS FOR OBTAINING PURE ALUMINA FROM AN ACIDIC LIQUOR FROM THE CHLOROSULFURIC ATTACK OF AN ALUMINOUS ORE AND FOR PURIFYING THE LIQUEUR CLEANED FROM THE ALUMINA
FR2426018A1 (en) * 1978-05-18 1979-12-14 Pechiney Aluminium PROCESS FOR OBTAINING PURE ALUMINA BY HYDROCHLORIC ATTACK OF ALUMINOUS ORES AND EXTRACTION OF IMPURITIES BY A SULFURIC TREATMENT
NO790460L (en) * 1979-02-13 1980-08-14 Elkem Spigerverket As PREPARATION OF A PURE ALUMINUM OXIDE FROM SOLUTIONS CONTAINING DISSOLVED ALUMINUM AND IRON IONS
NO147516C (en) * 1979-02-13 1983-04-27 Elkem Spigerverket As PROCEDURE FOR THE DEPOSIT OF A PURE ALUMINUM CHLORIDE FROM SOLUTIONS CONTAINING ALUMINUM AND MAGNESIUM IONS.
EP0152463B1 (en) * 1983-08-03 1990-05-23 Condea Chemie GmbH Production of high purity alumina
DE4121276C2 (en) * 1991-06-27 1994-02-17 Metallgesellschaft Ag Process for the preparation of sulfate-containing, basic polyaluminium chloride solutions
FI103401B1 (en) * 1996-04-12 1999-06-30 Kemira Chemicals Oy A method for treating impure alumina
CN102849767B (en) * 2012-04-10 2014-07-16 沈阳金博新技术产业有限公司 Method for preparing alumina by using power plant fly ash

Also Published As

Publication number Publication date
GR33674B (en) 1968-01-09
AT270588B (en) 1969-05-12
GB1190848A (en) 1970-05-06
CS150190B2 (en) 1973-09-04
DE1592155A1 (en) 1970-10-22
LU53506A1 (en) 1968-03-18
NL6705932A (en) 1967-10-30
CH475166A (en) 1969-07-15
BE697522A (en) 1967-10-25
FR1554586A (en) 1969-01-24

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