FR2254173A2 - Heat treating sensitive substances esp. photographic emulsions - by ultra high frequency microwaves giving complete isolation from outside substances - Google Patents
Heat treating sensitive substances esp. photographic emulsions - by ultra high frequency microwaves giving complete isolation from outside substancesInfo
- Publication number
- FR2254173A2 FR2254173A2 FR7343703A FR7343703A FR2254173A2 FR 2254173 A2 FR2254173 A2 FR 2254173A2 FR 7343703 A FR7343703 A FR 7343703A FR 7343703 A FR7343703 A FR 7343703A FR 2254173 A2 FR2254173 A2 FR 2254173A2
- Authority
- FR
- France
- Prior art keywords
- substances
- esp
- microwaves
- photographic emulsions
- high frequency
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
- B01J19/122—Incoherent waves
- B01J19/126—Microwaves
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/80—Apparatus for specific applications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
- H05B2206/04—Heating using microwaves
- H05B2206/044—Microwave heating devices provided with two or more magnetrons or microwave sources of other kind
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
A heat treatment appts. for sensitive substances using microwaves, comprises a feed chamber and discharge chamber, also a first generating means for the microwaves, e.g. a number of magnetrons which supply the microwaves to a limited and defined treatment chamber, also a second means for subjecting the substances to the microwaves, esp. a vessel which is sub-divided by a horizontal grating or the like into an upper treatment chamber and a lower after treatment chamber; both this vessel and its grating are of microwave-permeable material, e.g. polypropylene. The microwave energy liquefies the substances in the treatment chamber. Esp. for treating highly sensitive substances, e.g. photographic emulsions. The substances treated can be completely isolated from contact with the atmos. esp. by a cover or with any of the heating equipment.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7343703A FR2254173A2 (en) | 1973-12-07 | 1973-12-07 | Heat treating sensitive substances esp. photographic emulsions - by ultra high frequency microwaves giving complete isolation from outside substances |
US05/507,097 US4004122A (en) | 1973-11-06 | 1974-09-18 | Multi-zone microwave heating apparatus |
DE19742451852 DE2451852A1 (en) | 1973-11-06 | 1974-10-31 | HEAT TREATMENT DEVICE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7343703A FR2254173A2 (en) | 1973-12-07 | 1973-12-07 | Heat treating sensitive substances esp. photographic emulsions - by ultra high frequency microwaves giving complete isolation from outside substances |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2254173A2 true FR2254173A2 (en) | 1975-07-04 |
FR2254173B2 FR2254173B2 (en) | 1979-01-26 |
Family
ID=9128865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7343703A Granted FR2254173A2 (en) | 1973-11-06 | 1973-12-07 | Heat treating sensitive substances esp. photographic emulsions - by ultra high frequency microwaves giving complete isolation from outside substances |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2254173A2 (en) |
-
1973
- 1973-12-07 FR FR7343703A patent/FR2254173A2/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2254173B2 (en) | 1979-01-26 |
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