FR2449647B1 - - Google Patents
Info
- Publication number
- FR2449647B1 FR2449647B1 FR7904870A FR7904870A FR2449647B1 FR 2449647 B1 FR2449647 B1 FR 2449647B1 FR 7904870 A FR7904870 A FR 7904870A FR 7904870 A FR7904870 A FR 7904870A FR 2449647 B1 FR2449647 B1 FR 2449647B1
- Authority
- FR
- France
- 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
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)
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 FR2449647A1 (fr) | 1980-09-19 |
| FR2449647B1 true FR2449647B1 (US20030220297A1-20031127-C00074.png) | 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 (US20030220297A1-20031127-C00074.png) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU569777B2 (en) * | 1984-03-23 | 1988-02-18 | C.I.L. Inc. | Purification of waste sulphuric acid using microwave radiation |
| NL8402751A (nl) * | 1984-09-10 | 1986-04-01 | Philips Nv | Inrichting voor het opwerken van beits- en etsvloeistoffen. |
Family Cites Families (7)
| 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 | |
| US4145591A (en) * | 1976-01-24 | 1979-03-20 | Nitto Chemical Industry Co., Ltd. | Induction heating apparatus with leakage flux reducing means |
| DE2712728A1 (de) * | 1977-03-23 | 1978-09-28 | Metallgesellschaft Ag | Verfahren und vorrichtung zum erhitzen von gasen oder daempfen |
-
1979
- 1979-02-26 FR FR7904870A patent/FR2449647A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2449647A1 (fr) | 1980-09-19 |
