GB436443A - Improved process and device for the simultaneous manufacture in a rotary furnace of iron or steel and portland cements or hydraulic limes - Google Patents
Improved process and device for the simultaneous manufacture in a rotary furnace of iron or steel and portland cements or hydraulic limesInfo
- Publication number
- GB436443A GB436443A GB10105/34A GB1010534A GB436443A GB 436443 A GB436443 A GB 436443A GB 10105/34 A GB10105/34 A GB 10105/34A GB 1010534 A GB1010534 A GB 1010534A GB 436443 A GB436443 A GB 436443A
- Authority
- GB
- United Kingdom
- Prior art keywords
- furnace
- coal
- air
- iron
- steel
- 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
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
- C21B13/085—Making spongy iron or liquid steel, by direct processes in rotary furnaces wherein iron or steel is obtained in a molten state
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
436,443. Cements. BASSET, L. P., 7, Rue Montaigne, Paris. April 3, 1934, No. 10105. Convention date, April 3, 1933. [Class 22] [See also Groups II and XII] In a process for the simultaneous manufacture of iron or steel and Portland cement or hydraulic lime, the charge consisting of ore, chalk for bringing the lime content of the mixture to the required value, coal for reducing the ore and the carbon dioxide of the chalk, carburizing coal and a quantity of additional coal corresponding approximately to 5 per cent of the reducing coal for combating the oxidizing effects of the flame used, is heated in a rotary furnace by means of a flame obtained by the combustion of pulverized coal with the quantity of air to produce chiefly carbon dioxide and little or no carbon monoxide. Water vapour may be supplied to the furnace to assist in removal of sulphur from the clinker produced and air may be introduced into the furnace to burn the combustible gases therein. The process is carried out in the furnace shown in the Figure, which is similar to that described in Specification 423,104 with the addition of a chamber C into which air is blown, said air passing into the furnace F through tuyÞres T, to burn the combustible gases produced by the reduction of the charge. A Portland cement prepared by the process comprises 21 per cent of silica, 6À7 of alumina, 68 of lime and 5 of other ingredients. Specification 368,312 also is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR436443X | 1933-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB436443A true GB436443A (en) | 1935-10-03 |
Family
ID=8899739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10105/34A Expired GB436443A (en) | 1933-04-03 | 1934-04-03 | Improved process and device for the simultaneous manufacture in a rotary furnace of iron or steel and portland cements or hydraulic limes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB436443A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4503019A (en) * | 1984-04-10 | 1985-03-05 | Calgon Corporation | Blends of magnesium oxide and copperoxychloride as calcium oxide deposit inhibitors in coal fired lime kilns |
| US4565579A (en) * | 1982-10-28 | 1986-01-21 | Central Glass Company, Limited | Nonexplosive chemical composition for gently breaking rock or concrete mass |
-
1934
- 1934-04-03 GB GB10105/34A patent/GB436443A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4565579A (en) * | 1982-10-28 | 1986-01-21 | Central Glass Company, Limited | Nonexplosive chemical composition for gently breaking rock or concrete mass |
| US4503019A (en) * | 1984-04-10 | 1985-03-05 | Calgon Corporation | Blends of magnesium oxide and copperoxychloride as calcium oxide deposit inhibitors in coal fired lime kilns |
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