GB1267262A - - Google Patents

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Publication number
GB1267262A
GB1267262A GB1267262DA GB1267262A GB 1267262 A GB1267262 A GB 1267262A GB 1267262D A GB1267262D A GB 1267262DA GB 1267262 A GB1267262 A GB 1267262A
Authority
GB
United Kingdom
Prior art keywords
temperature
sulphuric acid
acid
plate column
condensation
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
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 filed Critical
Publication of GB1267262A publication Critical patent/GB1267262A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

1,267,262. Manufacture of sulphuric acid. STICKSTOFFWERK PIESTERITZ VEB. 5 Jan., 1970, No. 456/70. Heading C1A. Sulphuric acid is manufactured by treating SO 3 containing gases with water vapour at a temperature above the dew point of sulphuric acid and condensing the sulphuric acid in a plate column down which cone. H 2 SO 4 is passed in counter-current flow to the gas mixture resulting in the formation of foam layers in which the condensation of sulphuric acid from the gas mixture takes place under conditions such that no formation of mists occurs and the condensation and absorption of H 2 SO 4 are optimized. The SO 3 containing gas is used at a temperature between 300‹ and 380‹ C., the water vapour as saturated or superheated steam at a temperature between 125‹ C. and the temperature of the SO 3 containing gas, and the temperature of the feed acid to the plate column is between 155‹ and 240‹ C. The optimum condensation and absorption conditions in the plate column are achieved by virtue of the large surface area of the foam layer which is produced therein. The feed acid concentration is between 94 and 98À3% and the temperature of the plate column is maintained by variation of the sprinkling density of the cooled circulated acid.
GB1267262D 1970-01-05 1970-01-05 Expired GB1267262A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB45670 1970-01-05

Publications (1)

Publication Number Publication Date
GB1267262A true GB1267262A (en) 1972-03-15

Family

ID=9704665

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1267262D Expired GB1267262A (en) 1970-01-05 1970-01-05

Country Status (1)

Country Link
GB (1) GB1267262A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479172A1 (en) * 1980-03-25 1981-10-02 Haldor Topsoe As PROCESS FOR PRODUCING SULFURIC ACID
US4368183A (en) * 1979-11-08 1983-01-11 Metallgesellschaft Aktiengesellschaft Process of producing concentrated sulfuric acid
US5538707A (en) * 1994-03-01 1996-07-23 Monsanto Company Acid concentration control in SO3 absorption

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4368183A (en) * 1979-11-08 1983-01-11 Metallgesellschaft Aktiengesellschaft Process of producing concentrated sulfuric acid
FR2479172A1 (en) * 1980-03-25 1981-10-02 Haldor Topsoe As PROCESS FOR PRODUCING SULFURIC ACID
US5538707A (en) * 1994-03-01 1996-07-23 Monsanto Company Acid concentration control in SO3 absorption

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed