FR2032512A5 - Pure, concentrated sulphuric acid prodn - Google Patents

Pure, concentrated sulphuric acid prodn

Info

Publication number
FR2032512A5
FR2032512A5 FR6900488A FR6900488A FR2032512A5 FR 2032512 A5 FR2032512 A5 FR 2032512A5 FR 6900488 A FR6900488 A FR 6900488A FR 6900488 A FR6900488 A FR 6900488A FR 2032512 A5 FR2032512 A5 FR 2032512A5
Authority
FR
France
Prior art keywords
acid
concentration
towers
pure
sulphuric acid
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
FR6900488A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR6900488A priority Critical patent/FR2032512A5/en
Application granted granted Critical
Publication of FR2032512A5 publication Critical patent/FR2032512A5/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
    • C01B17/82—Preparation of sulfuric acid using a nitrogen oxide process
    • C01B17/86—Tower process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

The method which avoids the difficulties of the contact process produces pure and concentrated acid in a simple installation of nitrogen oxide towers, by adding to the current apparatus heat exchange, washing and drying systems the importance of which is a function of the degree of acid purity and concentration required. Denitrification, concentration and cid prodn. is effected in different towers - the concentration tower being wetted with the "acid-in-production" whilst removing acid for wetting the nitrogen oxides recovery towers without unnecessary concentration. Water vapour and acid spray leaving the concentration tower are absorbed by the acid production reactions in the following towers.
FR6900488A 1969-01-15 1969-01-15 Pure, concentrated sulphuric acid prodn Expired FR2032512A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6900488A FR2032512A5 (en) 1969-01-15 1969-01-15 Pure, concentrated sulphuric acid prodn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6900488A FR2032512A5 (en) 1969-01-15 1969-01-15 Pure, concentrated sulphuric acid prodn

Publications (1)

Publication Number Publication Date
FR2032512A5 true FR2032512A5 (en) 1970-11-27

Family

ID=9027813

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6900488A Expired FR2032512A5 (en) 1969-01-15 1969-01-15 Pure, concentrated sulphuric acid prodn

Country Status (1)

Country Link
FR (1) FR2032512A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000707A1 (en) * 1977-07-21 1979-02-21 Ciba-Geigy Ag Process and plant for removing sulphur dioxide from gaseous streams with recovery of sulphuric acid by the nitric oxide process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000707A1 (en) * 1977-07-21 1979-02-21 Ciba-Geigy Ag Process and plant for removing sulphur dioxide from gaseous streams with recovery of sulphuric acid by the nitric oxide process

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Legal Events

Date Code Title Description
ST Notification of lapse