FR2449647A1 - Perfectionnement au procede de concentration d'acide sulfurique jusqu'a une teneur elevee, en partant d'acide pur ou impur - Google Patents

Perfectionnement au procede de concentration d'acide sulfurique jusqu'a une teneur elevee, en partant d'acide pur ou impur

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
English (en)
French (fr)
Other versions
FR2449647B1 (en, 2012
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/fr
Publication of FR2449647A1 publication Critical patent/FR2449647A1/fr
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)
FR7904870A 1979-02-26 1979-02-26 Perfectionnement au procede de concentration d'acide sulfurique jusqu'a une teneur elevee, en partant d'acide pur ou impur Granted FR2449647A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7904870A FR2449647A1 (fr) 1979-02-26 1979-02-26 Perfectionnement au procede de concentration d'acide sulfurique jusqu'a une teneur elevee, en partant d'acide pur ou impur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7904870A FR2449647A1 (fr) 1979-02-26 1979-02-26 Perfectionnement au procede de concentration d'acide sulfurique jusqu'a une teneur elevee, en partant d'acide pur ou impur

Publications (2)

Publication Number Publication Date
FR2449647A1 true FR2449647A1 (fr) 1980-09-19
FR2449647B1 FR2449647B1 (en, 2012) 1981-10-30

Family

ID=9222459

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7904870A Granted FR2449647A1 (fr) 1979-02-26 1979-02-26 Perfectionnement au procede de concentration d'acide sulfurique jusqu'a une teneur elevee, en partant d'acide pur ou impur

Country Status (1)

Country Link
FR (1) FR2449647A1 (en, 2012)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

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 (fr) * 1955-01-17 1956-07-02 Kestner App Evaporateurs Procédé de concentration d'acide sulfurique jusqu'à une teneur élevée, en partant d'acide pur ou impur
DE972114C (de) * 1951-02-11 1959-05-21 Carl Dipl-Ing Schoerg Anordnung zur induktiven Erhitzung stroemender Medien
FR1298512A (fr) * 1961-06-02 1962-07-13 Installation de chauffage électrique
US3053959A (en) * 1959-12-15 1962-09-11 Richard M Christmann Apparatus and method for heating fluids
FR2339315A1 (fr) * 1976-01-24 1977-08-19 Nitto Chemical Industry Co Ltd Appareil de chauffage a induction
DE2712728A1 (de) * 1977-03-23 1978-09-28 Metallgesellschaft Ag Verfahren und vorrichtung zum erhitzen von gasen oder daempfen

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 (de) * 1951-02-11 1959-05-21 Carl Dipl-Ing Schoerg Anordnung zur induktiven Erhitzung stroemender Medien
FR1120150A (fr) * 1955-01-17 1956-07-02 Kestner App Evaporateurs Procédé de concentration d'acide sulfurique jusqu'à une teneur élevée, en partant d'acide pur ou impur
US3053959A (en) * 1959-12-15 1962-09-11 Richard M Christmann Apparatus and method for heating fluids
FR1298512A (fr) * 1961-06-02 1962-07-13 Installation de chauffage électrique
FR2339315A1 (fr) * 1976-01-24 1977-08-19 Nitto Chemical Industry Co Ltd Appareil de chauffage a induction
DE2712728A1 (de) * 1977-03-23 1978-09-28 Metallgesellschaft Ag Verfahren und vorrichtung zum erhitzen von gasen oder daempfen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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, 2012) 1981-10-30

Similar Documents

Publication Publication Date Title
JPS54160514A (en) Decarburization and annealing method for directional electromagnetic steel plate
FR2449647A1 (fr) Perfectionnement au procede de concentration d'acide sulfurique jusqu'a une teneur elevee, en partant d'acide pur ou impur
JPS5244436A (en) Microwave oven
JPS56130454A (en) Anisotropic electrical steel sheet with low iron loss and its manufacture
JPS5361509A (en) Hardening method by high frequency heating
JPS5779158A (en) Heat treatment of thin strip of amorphous magnetic alloy
JPS5336048A (en) Induction heater for metallic pipe
JPS5245510A (en) Process for heating uniformly steel material by induction heating belo w curie point
JPS5378486A (en) Rivet fixing method by way of electric heating
JPS5773119A (en) Induction hardening method for parts having rugged parts
JPS52127064A (en) Production of semiconductor
JPS5296444A (en) Defrozing method and apparatus
JPS52145307A (en) Taking out method of high temperature reduced iron from reducing furnace
JPS5214943A (en) Uniform heating method using induction heating
JPS5325940A (en) Cooling induction coil for electric induction furnaces
JPS5210939A (en) High frequency heating device
SU612916A1 (ru) Способ тепловой обработки бетона в электромагнитном поле тока промышленной частоты
JPS5311109A (en) Fitting part separating method in heat treating process of cylindrical parts
JPS51112166A (en) Impregnated cathode
JPS5421637A (en) Heating coil of induction heating device
JPS54134842A (en) Induction heating system
GB1448954A (en) Crucible furnace and method of removing lining therefrom
JPS52124401A (en) Preheating of iron raw material for steel making
JPS5392934A (en) Matching system for induction furnace
GB1041706A (en) Method of and device for predrying and prestiffening ceramic slip