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GB255876A - Process and apparatus for neutralising ammonium sulphate crystals - Google Patents

Process and apparatus for neutralising ammonium sulphate crystals

Info

Publication number
GB255876A
GB255876A GB18247/26A GB1824726A GB255876A GB 255876 A GB255876 A GB 255876A GB 18247/26 A GB18247/26 A GB 18247/26A GB 1824726 A GB1824726 A GB 1824726A GB 255876 A GB255876 A GB 255876A
Authority
GB
United Kingdom
Prior art keywords
ammonium sulphate
pyridine
neutralising
sulphate crystals
neutralization
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
GB18247/26A
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.)
WALTHER DEMANN
Original Assignee
WALTHER DEMANN
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 WALTHER DEMANN filed Critical WALTHER DEMANN
Publication of GB255876A publication Critical patent/GB255876A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/24—Sulfates of ammonium
    • C01C1/249—Deacidifying or drying the crystals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Pyridine Compounds (AREA)

Abstract

255,876. Demann, W. July 24, 1925, [Convention date]. Drawings to Specification. Pyridine. - In the neutralization of crude ammonium sulphate by means of an alkaline, saturated solution of ammonium sulphate, the pyridine which is liberated is recovered, for example by means of dilute acid or active carbon. By using low concentrations of ammonium carbonate or bicarbonate for the neutralization and by keeping the temperature below the dissociation temperature of these salts the pyridine is liberated free from ammonia.
GB18247/26A 1925-07-24 1926-07-21 Process and apparatus for neutralising ammonium sulphate crystals Expired GB255876A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE255876X 1925-07-24

Publications (1)

Publication Number Publication Date
GB255876A true GB255876A (en) 1927-10-13

Family

ID=5965687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18247/26A Expired GB255876A (en) 1925-07-24 1926-07-21 Process and apparatus for neutralising ammonium sulphate crystals

Country Status (1)

Country Link
GB (1) GB255876A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029745A (en) * 1974-08-01 1977-06-14 Institut Francais Du Petrole Des Carburants Et Lubricants Et Enterprise De Recherches Et D'activities Petroliers Elf Process for reducing molten ammonium sulfates containing metallic impurities to ammonia and sulfur dioxide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029745A (en) * 1974-08-01 1977-06-14 Institut Francais Du Petrole Des Carburants Et Lubricants Et Enterprise De Recherches Et D'activities Petroliers Elf Process for reducing molten ammonium sulfates containing metallic impurities to ammonia and sulfur dioxide

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