FR2216224A1 - Utilization of sulphuric acid wastes - from paraffin refining, by spray-burning and neutralising to form sulphites - Google Patents

Utilization of sulphuric acid wastes - from paraffin refining, by spray-burning and neutralising to form sulphites

Info

Publication number
FR2216224A1
FR2216224A1 FR7403840A FR7403840A FR2216224A1 FR 2216224 A1 FR2216224 A1 FR 2216224A1 FR 7403840 A FR7403840 A FR 7403840A FR 7403840 A FR7403840 A FR 7403840A FR 2216224 A1 FR2216224 A1 FR 2216224A1
Authority
FR
France
Prior art keywords
contg
wastes
sulphuric acid
neutralising
burning
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.)
Granted
Application number
FR7403840A
Other languages
French (fr)
Other versions
FR2216224B1 (en
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.)
Leuna Werke GmbH
Leuna Werke Walter Ulbright Germany VEB
Original Assignee
Leuna Werke GmbH
Leuna Werke Walter Ulbright Germany VEB
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 Leuna Werke GmbH, Leuna Werke Walter Ulbright Germany VEB filed Critical Leuna Werke GmbH
Publication of FR2216224A1 publication Critical patent/FR2216224A1/en
Application granted granted Critical
Publication of FR2216224B1 publication Critical patent/FR2216224B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/22—Sulfites of ammonium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/48—Sulfur dioxide; Sulfurous acid
    • C01B17/50—Preparation of sulfur dioxide
    • C01B17/58—Recovery of sulfur dioxide from acid tar or the like or from any waste sulfuric acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Paper (AREA)

Abstract

Sulphuric acid wastes (acid and oleum tars), e.g. from the refining of n-paraffins with H2SO4 or oleum, with a high H2SO4 content, a high viscosity and a low calorific value (>=1000 kcal/kg) are economically utilised by a continuous process in which (a) the wastes are continuously sprayed in finely divided form (=500 mu) with excess air or O2-contg gas (pref. a =10 vol. % excess) into a cylindrical furnace; (b) the particles are burnt at 900-1200 degrees C for =5 sec. using a gas or oil support burner (pref. fired with S-contg waste or residual oil); (c) the hot SO2-contg. combustion gases are scrubbed with H2O; and (d) the resulting SO2 is reacted with an aqs. alkali metal or NH4 bisulphite soln (pH 4.0-5) to form neutral or acid sulphite salts.
FR7403840A 1973-02-05 1974-02-05 Utilization of sulphuric acid wastes - from paraffin refining, by spray-burning and neutralising to form sulphites Granted FR2216224A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD16867573A DD105598A1 (en) 1973-02-05 1973-02-05

Publications (2)

Publication Number Publication Date
FR2216224A1 true FR2216224A1 (en) 1974-08-30
FR2216224B1 FR2216224B1 (en) 1980-03-28

Family

ID=5489979

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7403840A Granted FR2216224A1 (en) 1973-02-05 1974-02-05 Utilization of sulphuric acid wastes - from paraffin refining, by spray-burning and neutralising to form sulphites

Country Status (4)

Country Link
AT (1) AT326698B (en)
DD (1) DD105598A1 (en)
FR (1) FR2216224A1 (en)
SU (1) SU692774A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0093909A1 (en) * 1982-05-03 1983-11-16 Bayer Ag Process for decomposing diluted sulfuric acid
FR2714665A1 (en) * 1994-01-06 1995-07-07 Inst Francais Du Petrole New process for purified sulfuric acid purification.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2747937C2 (en) * 1977-10-26 1985-11-14 Winfried 3063 Obernkirchen Rosenstock Method for driving sheet piles into a rock substrate
TWI688427B (en) * 2015-06-17 2020-03-21 大陸商中國石油化工科技開發有限公司 Alkylated waste acid treatment method and device for implementing the method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0093909A1 (en) * 1982-05-03 1983-11-16 Bayer Ag Process for decomposing diluted sulfuric acid
FR2714665A1 (en) * 1994-01-06 1995-07-07 Inst Francais Du Petrole New process for purified sulfuric acid purification.
EP0662448A1 (en) * 1994-01-06 1995-07-12 Institut Francais Du Petrole Process for the purification of impure sulphuric acid
US5501847A (en) * 1994-01-06 1996-03-26 Institut Francais Du Petrole Process for purifying impure sulphuric acid

Also Published As

Publication number Publication date
DD105598A1 (en) 1974-05-05
FR2216224B1 (en) 1980-03-28
AT326698B (en) 1975-12-29
SU692774A1 (en) 1979-10-25
ATA83674A (en) 1975-03-15

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Legal Events

Date Code Title Description
ST Notification of lapse