ES237995A1 - Procedure and apparatus for the processing of dust by gases (Machine-translation by Google Translate, not legally binding) - Google Patents
Procedure and apparatus for the processing of dust by gases (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES237995A1 ES237995A1 ES0237995A ES237995A ES237995A1 ES 237995 A1 ES237995 A1 ES 237995A1 ES 0237995 A ES0237995 A ES 0237995A ES 237995 A ES237995 A ES 237995A ES 237995 A1 ES237995 A1 ES 237995A1
- Authority
- ES
- Spain
- Prior art keywords
- gas
- zone
- reaction
- zones
- powder
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/50—Fluorides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Processing Of Solid Wastes (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Procedure for the treatment of powders by gases, characterized in that the powder is passed through at least three fluidization zones: a pretreatment zone in diluted medium with complete entrainment of the powder by the gas, another zone called "reaction" or "main fluidization" in dense medium, and, finally, a third zone called "recovery" in dilute or dense medium, said procedure being able to present one or more of the following details: a) the contact time of the Dust with the gas is short in the pretreatment and recovery zones, while in the reaction zone said time is prolonged; b) the time of contact of the powder with the gas in the pre-treatment and recovery zones is of the order of a few seconds, while in the reaction zone it is of the order of a few hours; c) the gas remains in contact with the dust for a few seconds only in each of the zones; d) two or more different gases or vapors act separately on the dust in one or more of the zones; e) a heating gas and a reaction gas can be actuated on the powder separately and in different areas; f) a heating gas and a reaction gas are made to act together in one or more of said fluidization zones; g) one or more powders separated from the gas at the exit of a fluidization zone pass to the following fluidization zone; h) in the pretreatment zone, the powder undergoes preheating, and dehydration, and chemical ration; i) in the main fluidization zone, the powder undergoes a chemical reaction; j) in the recovery zone, the heat of the dust that has undergone the reaction is used to heat a gas; k) the procedure is applied for the treatment of metallic compounds, such as oxides or others by means of hydracids such as HF, HC1, for roasting sulfides, for hydrogenations, as well as for carrying out drying or dehydration operations. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR723550 | 1956-10-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES237995A1 true ES237995A1 (en) | 1958-04-16 |
Family
ID=8703832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0237995A Expired ES237995A1 (en) | 1956-10-11 | 1957-10-09 | Procedure and apparatus for the processing of dust by gases (Machine-translation by Google Translate, not legally binding) |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH377324A (en) |
| ES (1) | ES237995A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5033992B1 (en) * | 1970-12-23 | 1975-11-05 |
-
1957
- 1957-10-07 CH CH5135057A patent/CH377324A/en unknown
- 1957-10-09 ES ES0237995A patent/ES237995A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH377324A (en) | 1964-05-15 |
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