FR2036388A5 - Recovery of anhydrous hydrochloric acid - from dil aqueous solns - Google Patents

Recovery of anhydrous hydrochloric acid - from dil aqueous solns

Info

Publication number
FR2036388A5
FR2036388A5 FR6907024A FR6907024A FR2036388A5 FR 2036388 A5 FR2036388 A5 FR 2036388A5 FR 6907024 A FR6907024 A FR 6907024A FR 6907024 A FR6907024 A FR 6907024A FR 2036388 A5 FR2036388 A5 FR 2036388A5
Authority
FR
France
Prior art keywords
hcl
recovery
hydrochloric acid
dil
anhydrous hydrochloric
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
FR6907024A
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.)
Compagnie Francaise de Raffinage SA
Original Assignee
Compagnie Francaise de Raffinage SA
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 Compagnie Francaise de Raffinage SA filed Critical Compagnie Francaise de Raffinage SA
Priority to FR6907024A priority Critical patent/FR2036388A5/en
Application granted granted Critical
Publication of FR2036388A5 publication Critical patent/FR2036388A5/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
    • C01B7/00—Halogens; Halogen acids
    • C01B7/01—Chlorine; Hydrogen chloride
    • C01B7/07—Purification ; Separation
    • C01B7/0706—Purification ; Separation of hydrogen chloride
    • C01B7/0712—Purification ; Separation of hydrogen chloride by distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

Recovery of anhydrous hydrochloric acid from dil. aqueous solns. Process comprises distilling the dil. HCl at atmos. pressure to obtain a water-HCl azeotrope which is then mixed with an aqueous soln. of an alkaline earth chloride e.g. CaCl2 or MgCl2 and redistilled to obtain a top fraction rich in HCl. The latter is then separated e.g. by cooling to give pure HCl gas. The recovered HCl is used to give Cl2 gas by electrolysis.
FR6907024A 1969-03-12 1969-03-12 Recovery of anhydrous hydrochloric acid - from dil aqueous solns Expired FR2036388A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6907024A FR2036388A5 (en) 1969-03-12 1969-03-12 Recovery of anhydrous hydrochloric acid - from dil aqueous solns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6907024A FR2036388A5 (en) 1969-03-12 1969-03-12 Recovery of anhydrous hydrochloric acid - from dil aqueous solns

Publications (1)

Publication Number Publication Date
FR2036388A5 true FR2036388A5 (en) 1970-12-24

Family

ID=9030540

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6907024A Expired FR2036388A5 (en) 1969-03-12 1969-03-12 Recovery of anhydrous hydrochloric acid - from dil aqueous solns

Country Status (1)

Country Link
FR (1) FR2036388A5 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504622A1 (en) * 1991-02-28 1992-09-23 L. & C. Steinmüller GmbH Process for the preparation of high concentrated hydrochloric acid from hydrochloric acid with a concentration under the azeotropic concentration
EP2236458A1 (en) * 2008-01-11 2010-10-06 Mitsubishi Heavy Industries, Ltd. Hydrogen chloride supply apparatus, exhaust gas treatment system, and hydrogen chloride supply management system
CN108545701A (en) * 2018-04-28 2018-09-18 连云港市工业投资集团利海化工有限公司 A kind of high-efficiency hydrochloric parsing is broken to boil agent and its application

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0504622A1 (en) * 1991-02-28 1992-09-23 L. & C. Steinmüller GmbH Process for the preparation of high concentrated hydrochloric acid from hydrochloric acid with a concentration under the azeotropic concentration
EP2236458A1 (en) * 2008-01-11 2010-10-06 Mitsubishi Heavy Industries, Ltd. Hydrogen chloride supply apparatus, exhaust gas treatment system, and hydrogen chloride supply management system
EP2236458A4 (en) * 2008-01-11 2013-01-16 Mitsubishi Heavy Ind Ltd Hydrogen chloride supply apparatus, exhaust gas treatment system, and hydrogen chloride supply management system
CN108545701A (en) * 2018-04-28 2018-09-18 连云港市工业投资集团利海化工有限公司 A kind of high-efficiency hydrochloric parsing is broken to boil agent and its application

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Legal Events

Date Code Title Description
ST Notification of lapse