FR2114331A5 - Continuous redn appts - for metal oxides - Google Patents
Continuous redn appts - for metal oxidesInfo
- Publication number
- FR2114331A5 FR2114331A5 FR7120083A FR7120083A FR2114331A5 FR 2114331 A5 FR2114331 A5 FR 2114331A5 FR 7120083 A FR7120083 A FR 7120083A FR 7120083 A FR7120083 A FR 7120083A FR 2114331 A5 FR2114331 A5 FR 2114331A5
- Authority
- FR
- France
- Prior art keywords
- furnace
- redn
- appts
- oxide
- continuous
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/08—Rotary-drum furnaces, i.e. horizontal or slightly inclined externally heated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
The appts. consists of a rotating cylindrical furnace enclosed in a concentric casing with a space between them. A heating oven is enclosed in the space to heat the furnace from outside. The metal oxide is introduced at a fixed rate at one end, reduced in the furance and reduced metal removed at the other end. The internal wall of the furnace is lined with a layer of material selected from the following: Al oxide, mullite, silica, or Zr oxide. This prevents deposition of metal on the inside of the furnace and increases the degree of redn. while saving reducing gas.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9940670A JPS4817968B1 (en) | 1970-11-13 | 1970-11-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2114331A5 true FR2114331A5 (en) | 1972-06-30 |
Family
ID=14246591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7120083A Expired FR2114331A5 (en) | 1970-11-13 | 1971-06-03 | Continuous redn appts - for metal oxides |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS4817968B1 (en) |
FR (1) | FR2114331A5 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0571251A1 (en) * | 1992-05-21 | 1993-11-24 | Institut Francais Du Petrole | Rotary-drum furnace for chemical reactions |
FR2691378A1 (en) * | 1992-05-21 | 1993-11-26 | Inst Francais Du Petrole | Sulphurisation process for catalysers - using a rotating tube coated with e.g. alumina to prevent occurrence of sec. reactions |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS501643A (en) * | 1973-05-07 | 1975-01-09 | ||
JPH03143419A (en) * | 1989-10-30 | 1991-06-19 | Matsushita Electric Ind Co Ltd | Dish cleaner |
JP7070104B2 (en) * | 2018-06-04 | 2022-05-18 | 住友電気工業株式会社 | Rotating furnace |
-
1970
- 1970-11-13 JP JP9940670A patent/JPS4817968B1/ja active Pending
-
1971
- 1971-06-03 FR FR7120083A patent/FR2114331A5/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0571251A1 (en) * | 1992-05-21 | 1993-11-24 | Institut Francais Du Petrole | Rotary-drum furnace for chemical reactions |
FR2691378A1 (en) * | 1992-05-21 | 1993-11-26 | Inst Francais Du Petrole | Sulphurisation process for catalysers - using a rotating tube coated with e.g. alumina to prevent occurrence of sec. reactions |
FR2691377A1 (en) * | 1992-05-21 | 1993-11-26 | Inst Francais Du Petrole | Rotary oven for chemical reaction. |
Also Published As
Publication number | Publication date |
---|---|
JPS4817968B1 (en) | 1973-06-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |