FR2449647A1 - Concentrating sulphuric acid by heating - using metallic susceptor in contact with the acid, and an induction heating coil - Google Patents

Concentrating sulphuric acid by heating - using metallic susceptor in contact with the acid, and an induction heating coil

Info

Publication number
FR2449647A1
FR2449647A1 FR7904870A FR7904870A FR2449647A1 FR 2449647 A1 FR2449647 A1 FR 2449647A1 FR 7904870 A FR7904870 A FR 7904870A FR 7904870 A FR7904870 A FR 7904870A FR 2449647 A1 FR2449647 A1 FR 2449647A1
Authority
FR
France
Prior art keywords
acid
contact
susceptor
heating
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.)
Granted
Application number
FR7904870A
Other languages
French (fr)
Other versions
FR2449647B1 (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.)
Appareils et Evaporateurs Kestner SA
Original Assignee
Appareils et Evaporateurs Kestner 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 Appareils et Evaporateurs Kestner SA filed Critical Appareils et Evaporateurs Kestner SA
Priority to FR7904870A priority Critical patent/FR2449647A1/en
Publication of FR2449647A1 publication Critical patent/FR2449647A1/en
Application granted granted Critical
Publication of FR2449647B1 publication Critical patent/FR2449647B1/fr
Granted 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
    • C01B17/88—Concentration of sulfuric acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

Method for concentrating sulphuric acid to a high level from pure or impur acid, is described in which the acid is heated by electromagnetic induction in the appts. in which the acid is distilled using a solid material which is not attacked by the acid as susceptor. The solid material need not be in lump form as in prior art, and need not be repeatedly handled or heated or excessive temps. which led to its disintegration. Improved contact between susceptor and acid is achieved, giving improved heating of the acid.
FR7904870A 1979-02-26 1979-02-26 Concentrating sulphuric acid by heating - using metallic susceptor in contact with the acid, and an induction heating coil Granted FR2449647A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7904870A FR2449647A1 (en) 1979-02-26 1979-02-26 Concentrating sulphuric acid by heating - using metallic susceptor in contact with the acid, and an induction heating coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7904870A FR2449647A1 (en) 1979-02-26 1979-02-26 Concentrating sulphuric acid by heating - using metallic susceptor in contact with the acid, and an induction heating coil

Publications (2)

Publication Number Publication Date
FR2449647A1 true FR2449647A1 (en) 1980-09-19
FR2449647B1 FR2449647B1 (en) 1981-10-30

Family

ID=9222459

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7904870A Granted FR2449647A1 (en) 1979-02-26 1979-02-26 Concentrating sulphuric acid by heating - using metallic susceptor in contact with the acid, and an induction heating coil

Country Status (1)

Country Link
FR (1) FR2449647A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158461A2 (en) * 1984-03-23 1985-10-16 C-I-L Inc. Purification and reconcentration of waste sulphuric acid
US4663145A (en) * 1984-09-10 1987-05-05 U.S. Philips Corporation Device for an method of working up pickling and etching liquids

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2181274A (en) * 1938-05-11 1939-11-28 Utilities Coordinated Res Inc Induction heater construction
FR1120150A (en) * 1955-01-17 1956-07-02 Kestner App Evaporateurs Process of concentrating sulfuric acid to a high content, starting from pure or impure acid
DE972114C (en) * 1951-02-11 1959-05-21 Carl Dipl-Ing Schoerg Arrangement for inductive heating of flowing media
FR1298512A (en) * 1961-06-02 1962-07-13 Electric heating installation
US3053959A (en) * 1959-12-15 1962-09-11 Richard M Christmann Apparatus and method for heating fluids
FR2339315A1 (en) * 1976-01-24 1977-08-19 Nitto Chemical Industry Co Ltd INDUCTION HEATING UNIT
DE2712728A1 (en) * 1977-03-23 1978-09-28 Metallgesellschaft Ag METHOD AND DEVICE FOR HEATING GASES OR STEAMS

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2181274A (en) * 1938-05-11 1939-11-28 Utilities Coordinated Res Inc Induction heater construction
DE972114C (en) * 1951-02-11 1959-05-21 Carl Dipl-Ing Schoerg Arrangement for inductive heating of flowing media
FR1120150A (en) * 1955-01-17 1956-07-02 Kestner App Evaporateurs Process of concentrating sulfuric acid to a high content, starting from pure or impure acid
US3053959A (en) * 1959-12-15 1962-09-11 Richard M Christmann Apparatus and method for heating fluids
FR1298512A (en) * 1961-06-02 1962-07-13 Electric heating installation
FR2339315A1 (en) * 1976-01-24 1977-08-19 Nitto Chemical Industry Co Ltd INDUCTION HEATING UNIT
DE2712728A1 (en) * 1977-03-23 1978-09-28 Metallgesellschaft Ag METHOD AND DEVICE FOR HEATING GASES OR STEAMS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0158461A2 (en) * 1984-03-23 1985-10-16 C-I-L Inc. Purification and reconcentration of waste sulphuric acid
EP0158461A3 (en) * 1984-03-23 1987-01-14 C-I-L Inc. Purification and reconcentration of waste sulphuric acid
US4663145A (en) * 1984-09-10 1987-05-05 U.S. Philips Corporation Device for an method of working up pickling and etching liquids

Also Published As

Publication number Publication date
FR2449647B1 (en) 1981-10-30

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