SE0001553L - Process for heat processing of ammonium aluminum alum to aluminum sulphate - Google Patents

Process for heat processing of ammonium aluminum alum to aluminum sulphate

Info

Publication number
SE0001553L
SE0001553L SE0001553A SE0001553A SE0001553L SE 0001553 L SE0001553 L SE 0001553L SE 0001553 A SE0001553 A SE 0001553A SE 0001553 A SE0001553 A SE 0001553A SE 0001553 L SE0001553 L SE 0001553L
Authority
SE
Sweden
Prior art keywords
degc
aluminum
alum
heat processing
temperature
Prior art date
Application number
SE0001553A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE520037C2 (en
SE0001553D0 (en
Inventor
Lubos Novak
Original Assignee
Mega A S
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=5463545&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE0001553(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mega A S filed Critical Mega A S
Publication of SE0001553D0 publication Critical patent/SE0001553D0/en
Publication of SE0001553L publication Critical patent/SE0001553L/en
Publication of SE520037C2 publication Critical patent/SE520037C2/en

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
    • C01F7/68—Aluminium compounds containing sulfur
    • C01F7/74—Sulfates
    • C01F7/745—Preparation from alums, e.g. alunite
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
    • 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
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Paper (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invented heat treatment process is characterized in that a crystalline ammonia alum is subjected to dehydration in two stages in such a manner first is instantaneously burned in a burner flame at a temperature ranging 1000 to 1500 degC and then it is brought into contact with combustion gases at a temperature ranging from 250 to 600 degC. So dehydrated product is the thermally decomposed by heating to a constant temperature in the range of 500 to 600 degC and the resulting product is subsequently immediately or additionally dissolved in water with temperature of 40 to 95 degC to aqueous solution of aluminium sulfate, from which optionally crystalline aluminium sulfate can be isolated.
SE0001553A 1999-05-05 2000-04-28 Process for heat treatment of ammonium aluminum alum to aluminum sulphate SE520037C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CZ19991613A CZ287570B6 (en) 1999-05-05 1999-05-05 Heat treatment process of ammonia alum to aluminium sulfate

Publications (3)

Publication Number Publication Date
SE0001553D0 SE0001553D0 (en) 2000-04-28
SE0001553L true SE0001553L (en) 2000-11-06
SE520037C2 SE520037C2 (en) 2003-05-13

Family

ID=5463545

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0001553A SE520037C2 (en) 1999-05-05 2000-04-28 Process for heat treatment of ammonium aluminum alum to aluminum sulphate

Country Status (3)

Country Link
CZ (1) CZ287570B6 (en)
DE (1) DE10021090A1 (en)
SE (1) SE520037C2 (en)

Also Published As

Publication number Publication date
CZ161399A3 (en) 2000-09-13
SE520037C2 (en) 2003-05-13
SE0001553D0 (en) 2000-04-28
CZ287570B6 (en) 2000-12-13
DE10021090A1 (en) 2001-01-11

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Legal Events

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NUG Patent has lapsed