FR2075207A5 - Ammonium bisulphate - by thermal decomposition of ammonium sulphate - Google Patents

Ammonium bisulphate - by thermal decomposition of ammonium sulphate

Info

Publication number
FR2075207A5
FR2075207A5 FR7100054A FR7100054A FR2075207A5 FR 2075207 A5 FR2075207 A5 FR 2075207A5 FR 7100054 A FR7100054 A FR 7100054A FR 7100054 A FR7100054 A FR 7100054A FR 2075207 A5 FR2075207 A5 FR 2075207A5
Authority
FR
France
Prior art keywords
ammonium
thermal decomposition
bisulphate
sulphate
hso4
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
FR7100054A
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering 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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Application granted granted Critical
Publication of FR2075207A5 publication Critical patent/FR2075207A5/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/026—Preparation of ammonia from inorganic compounds
    • C01C1/028—Preparation of ammonia from inorganic compounds from ammonium sulfate or sulfite
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/24—Sulfates of ammonium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

Ammonium bisulphate is produced by the thermal decomposition of a soln/suspension of ammonium sulphate in (NH4) HSO4 or water at 300-500 C pref 350-450 degrees C. Heat is provided by a carrier gas, pref combustion gases for aqs or steam for non-aqueous suspensions. Molten (NH4)HSO4 and ammonia are formed. The concentration of the (NH4)2SO4 in the feed liquid is >=15%. The presence of water vapour suppresses the formation of pyrosulphate.
FR7100054A 1970-01-05 1971-01-04 Ammonium bisulphate - by thermal decomposition of ammonium sulphate Expired FR2075207A5 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81370A 1970-01-05 1970-01-05
US710870A 1970-01-30 1970-01-30

Publications (1)

Publication Number Publication Date
FR2075207A5 true FR2075207A5 (en) 1971-10-08

Family

ID=26668180

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7100054A Expired FR2075207A5 (en) 1970-01-05 1971-01-04 Ammonium bisulphate - by thermal decomposition of ammonium sulphate

Country Status (1)

Country Link
FR (1) FR2075207A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083831A1 (en) * 1982-01-05 1983-07-20 Fertilizer Development S.A. Process for producing sulfuric acid and ammonia
EP0577019A1 (en) * 1992-07-03 1994-01-05 BASF Aktiengesellschaft Process for the thermal decomposition of ammoninium sulfate in ammonia and ammonium bisulfate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083831A1 (en) * 1982-01-05 1983-07-20 Fertilizer Development S.A. Process for producing sulfuric acid and ammonia
EP0577019A1 (en) * 1992-07-03 1994-01-05 BASF Aktiengesellschaft Process for the thermal decomposition of ammoninium sulfate in ammonia and ammonium bisulfate

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Legal Events

Date Code Title Description
ST Notification of lapse