JPS54155918A - Hot iron desulfurizing agent and manufacture thereof - Google Patents
Hot iron desulfurizing agent and manufacture thereofInfo
- Publication number
- JPS54155918A JPS54155918A JP6551278A JP6551278A JPS54155918A JP S54155918 A JPS54155918 A JP S54155918A JP 6551278 A JP6551278 A JP 6551278A JP 6551278 A JP6551278 A JP 6551278A JP S54155918 A JPS54155918 A JP S54155918A
- Authority
- JP
- Japan
- Prior art keywords
- cao
- cac2
- desulfurizing agent
- hot iron
- sludge
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
- C21C1/025—Agents used for dephosphorising or desulfurising
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
PURPOSE:To manufacture usuperior hot iron desulfurizing agent by adding an inorg. substance to CaO formed by calcining Ca(OH)2-based sludge after producing acetylene or by further adding CaC2. CONSTITUTION:Finely divided sludge after producing acetylene gas by reacting CaC2 with water is based on Ca(OH)2 and contains a small amt. of SiO2, MgO, Al2O3, Fe2O3, etc. The sludge is heated to 500-800 deg.C in a rotary kiln or the like, converting the Ca(OH)2 into CaO. Because of the passage of heat history of such a high temp. as above 2000 deg.C in production of CaC2, the CaO has high activity. In order to protect the CaO surface from returning to Ca(OH)2, above 0.3% of an inorg. substance such as serpentine or talc is added to the CaO in such a high temp. state as above 500 deg.C to give a hot iron desulfurizing agent. 10-100 pts. wt. of CaC2 powder may further be added to 100 pts. wt. of the agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6551278A JPS6035407B2 (en) | 1978-05-31 | 1978-05-31 | Desulfurization agent for hot metal and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6551278A JPS6035407B2 (en) | 1978-05-31 | 1978-05-31 | Desulfurization agent for hot metal and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54155918A true JPS54155918A (en) | 1979-12-08 |
| JPS6035407B2 JPS6035407B2 (en) | 1985-08-14 |
Family
ID=13289167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6551278A Expired JPS6035407B2 (en) | 1978-05-31 | 1978-05-31 | Desulfurization agent for hot metal and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6035407B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4358312A (en) * | 1979-12-29 | 1982-11-09 | Hoechst Aktiengesellschaft | Desulfurizing agent and process for its manufacture |
| AT394500B (en) * | 1990-12-17 | 1992-04-10 | Evn En Versorgung Niederoester | Process for the desulphurization of flue gases |
| CN112340960A (en) * | 2020-09-29 | 2021-02-09 | 广西三秋树环保科技有限公司 | Dehydrating agent, preparation method and application thereof, and red mud dehydrating method |
-
1978
- 1978-05-31 JP JP6551278A patent/JPS6035407B2/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4358312A (en) * | 1979-12-29 | 1982-11-09 | Hoechst Aktiengesellschaft | Desulfurizing agent and process for its manufacture |
| AT394500B (en) * | 1990-12-17 | 1992-04-10 | Evn En Versorgung Niederoester | Process for the desulphurization of flue gases |
| CN112340960A (en) * | 2020-09-29 | 2021-02-09 | 广西三秋树环保科技有限公司 | Dehydrating agent, preparation method and application thereof, and red mud dehydrating method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6035407B2 (en) | 1985-08-14 |
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