FR2414557A1 - Aluminium silicate ore granulate - is produced by loosening the mineral structure and agglomerating moist particles in pressureless manner - Google Patents

Aluminium silicate ore granulate - is produced by loosening the mineral structure and agglomerating moist particles in pressureless manner

Info

Publication number
FR2414557A1
FR2414557A1 FR7900604A FR7900604A FR2414557A1 FR 2414557 A1 FR2414557 A1 FR 2414557A1 FR 7900604 A FR7900604 A FR 7900604A FR 7900604 A FR7900604 A FR 7900604A FR 2414557 A1 FR2414557 A1 FR 2414557A1
Authority
FR
France
Prior art keywords
agglomerating
loosening
granulate
produced
aluminium silicate
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.)
Withdrawn
Application number
FR7900604A
Other languages
French (fr)
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.)
Vereinigte Aluminium Werke AG
Original Assignee
Vereinigte Aluminium Werke AG
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 Vereinigte Aluminium Werke AG filed Critical Vereinigte Aluminium Werke AG
Publication of FR2414557A1 publication Critical patent/FR2414557A1/en
Withdrawn legal-status Critical Current

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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/2406—Binding; Briquetting ; Granulating pelletizing
    • 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
    • C22B21/00—Obtaining aluminium
    • C22B21/0007—Preliminary treatment of ores or scrap or any other metal source

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

Al silicate contg. ores are formed into stable granulates which are suitable for digestion with acid, by first loosening the mineral structure of the ore to such a degree that the primary structure is destroyed and then agglomerating the fine particles pressureless and at a moisture content of 20-30%. This gives agglomerates of >2 mm dia, which are subsequently calcined at 650 degrees - 850 degrees C. The stable granulates give a greater yield and the formation of a suspension of finely dispersed insoluble solids when being digested with the acid is avoided.
FR7900604A 1978-01-13 1979-01-11 Aluminium silicate ore granulate - is produced by loosening the mineral structure and agglomerating moist particles in pressureless manner Withdrawn FR2414557A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782801274 DE2801274B1 (en) 1978-01-13 1978-01-13 Process for the production of stable pellets for the acid digestion of ores containing aluminum silicate

Publications (1)

Publication Number Publication Date
FR2414557A1 true FR2414557A1 (en) 1979-08-10

Family

ID=6029387

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7900604A Withdrawn FR2414557A1 (en) 1978-01-13 1979-01-11 Aluminium silicate ore granulate - is produced by loosening the mineral structure and agglomerating moist particles in pressureless manner

Country Status (2)

Country Link
DE (1) DE2801274B1 (en)
FR (1) FR2414557A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2480790A1 (en) * 1980-04-22 1981-10-23 Mitsui Aluminium Co Ltd CARBOTHERMAL PROCESS FOR THE PRODUCTION OF ALUMINUM

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE856959C (en) * 1943-09-16 1952-11-24 Metallgesellschaft Ag Procedure for preparing the charge for electrothermal ovens
US3057683A (en) * 1957-03-29 1962-10-09 Montedison Spa Process for production of alumina from bauxite and other aluminous materials, by pyrogenic attack, in agglomeration plants, either under suction or pressure
AU2076170A (en) * 1970-10-06 1972-04-13 Commonwealth Aluminium Corporation Limited Improving the quality of bauxite
DE2133416A1 (en) * 1970-11-11 1972-05-18 Vni I Pi Aljuminiewoj Magniewo Aluminium-silicon alloys prodn - using a charge contg petroleum coke and amthracite
DE2133417A1 (en) * 1970-11-11 1972-05-18 Vni I Pi Aljuminiewoj Magniewo Aluminium-silicon alloys prodn - using charge contg petroleum coke/carbon black as reducing agent
FR2194790A1 (en) * 1972-08-02 1974-03-01 Ethyl Corp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE856959C (en) * 1943-09-16 1952-11-24 Metallgesellschaft Ag Procedure for preparing the charge for electrothermal ovens
US3057683A (en) * 1957-03-29 1962-10-09 Montedison Spa Process for production of alumina from bauxite and other aluminous materials, by pyrogenic attack, in agglomeration plants, either under suction or pressure
AU2076170A (en) * 1970-10-06 1972-04-13 Commonwealth Aluminium Corporation Limited Improving the quality of bauxite
DE2133416A1 (en) * 1970-11-11 1972-05-18 Vni I Pi Aljuminiewoj Magniewo Aluminium-silicon alloys prodn - using a charge contg petroleum coke and amthracite
DE2133417A1 (en) * 1970-11-11 1972-05-18 Vni I Pi Aljuminiewoj Magniewo Aluminium-silicon alloys prodn - using charge contg petroleum coke/carbon black as reducing agent
FR2194790A1 (en) * 1972-08-02 1974-03-01 Ethyl Corp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2480790A1 (en) * 1980-04-22 1981-10-23 Mitsui Aluminium Co Ltd CARBOTHERMAL PROCESS FOR THE PRODUCTION OF ALUMINUM

Also Published As

Publication number Publication date
DE2801274B1 (en) 1978-08-31

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Legal Events

Date Code Title Description
ST Notification of lapse