US289087A - Self and james - Google Patents
Self and james Download PDFInfo
- Publication number
- US289087A US289087A US289087DA US289087A US 289087 A US289087 A US 289087A US 289087D A US289087D A US 289087DA US 289087 A US289087 A US 289087A
- Authority
- US
- United States
- Prior art keywords
- metal
- chemicals
- furnace
- potassium
- james
- 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 - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 description 28
- 239000002184 metal Substances 0.000 description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 239000000126 substance Substances 0.000 description 16
- ORXDSIPBTFAEKJ-UHFFFAOYSA-N ferrocyanide Chemical compound N#C[Fe-4](C#N)(C#N)(C#N)(C#N)C#N ORXDSIPBTFAEKJ-UHFFFAOYSA-N 0.000 description 12
- 229910052700 potassium Inorganic materials 0.000 description 12
- 239000011591 potassium Substances 0.000 description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 10
- 239000012535 impurity Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000004615 ingredient Substances 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
Definitions
- sal-soda and ferro-cyanide of potassium are added thereto in about equal proportions. These chemicals unite with the impurities and rise to the top with the slag, leaving the refined and purified metal free to be drawn from the furnace. In the puddling' furnace the chemicals should be added to the metal while it is still boiling and before it comes to nature.
- sal-soda and ferrocyanide of potassium may be placed in the ladle, mold, or Bessemer converter before the molten metal is poured therein.
- the amount of sal-soda and ferro-cyanide of potassium to be added to the metal depends upon the quality of the iron or steel and the amount of impurities, phosphorus,'and other foreign substances contained therein; but for ordinary grades of metal forty-five ounces of sal-soda and a like quantity of ferro-cyanide metal.
- the advantages of my invention are that the phosphorus and other foreign substances are removed from the metal, and it is therefore tough and fibrous throughout, and a superior quality of iron may be produced from an inferior quality of metal.
Description
UNITED STATES IVILLIAM GRIFFITH, OF PITTSBURG,
,PENNSYLVANIA, ASSIGNOR TO HIM- I SELF AND JAMES C. GRAY, OF SAME PLACE.
PROCESS OF PURIFYING MOLTEN IRON.
SPECIFICATION forming; part of Letters Patent N 0. 289,087, dated November 2'7, 1883.
Application filed May 2 To all whom it may concern.-
Be it known that I, "WILLIAM GRIFFITH, of
Pittsburg, in the county of Allegheny and State fine it and remove impurities therefrom. These chemicals may be added or introduced into the molten metal after it has been run from the furnace into the ladle or mold, or they may be added to the metal in Bessemer converters, paddling, refining, open-hearth, cupola, blast, and other furnaces.
I will now describe my invention, so that others skilled in the art may use the same.
When the meta-lhas been reducedto'a molten state in the furnace, sal-soda and ferro-cyanide of potassium are added thereto in about equal proportions. These chemicals unite with the impurities and rise to the top with the slag, leaving the refined and purified metal free to be drawn from the furnace. In the puddling' furnace the chemicals should be added to the metal while it is still boiling and before it comes to nature.
In order that the chemicals may act properly upon the metal, care should be taken that they are placed beneath the surface of the molten metal in the furnace. This may be easily accomplished by inclosing the chemicals in thin metal cases or boxes.
Instead of introducing the sal-soda and ferrocyanide of potassium into the furnace, they may be placed in the ladle, mold, or Bessemer converter before the molten metal is poured therein.
5, 1883. (No specimens.)
The amount of sal-soda and ferro-cyanide of potassium to be added to the metal depends upon the quality of the iron or steel and the amount of impurities, phosphorus,'and other foreign substances contained therein; but for ordinary grades of metal forty-five ounces of sal-soda and a like quantity of ferro-cyanide metal.
The advantages of my invention are that the phosphorus and other foreign substances are removed from the metal, and it is therefore tough and fibrous throughout, and a superior quality of iron may be produced from an inferior quality of metal.
I am aware that sal-soda and ferro-cyanide of potassium have been used separately and in conjunction with various other chemicals in physics for the purification of iron, and in different steps or stages of the process, and do not broadly claim the same; but I am not aware that the said two ingredients have been used conjointly and in the manner hereinbefore specified. Therefore,
claim, and desire to secure by Letters Patent, is
The process herein described for refining and purifying iron and steel, which consists in subjecting the molten metal to the action of salsoda and ferro-cyanide of potassium,in substantially the proportions specified, as and for the purposes set forth.
In testimony whereof I have hereunto set my hand this 19th day of May, A. D. 1883.
\IILLIAM GRIFFITH.
"Witnesses:
W. B. Conwrn,
J. K. BAKEWELL.
of potassium may be used with each ton of Having thus described my invention, what I a compound consisting of the two ingredients,
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US289087A true US289087A (en) | 1883-11-27 |
Family
ID=2358279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US289087D Expired - Lifetime US289087A (en) | Self and james |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US289087A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090118429A1 (en) * | 2006-06-12 | 2009-05-07 | Asahi Glass Company, Limited | Curable composition and fluorinated cured product |
-
0
- US US289087D patent/US289087A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090118429A1 (en) * | 2006-06-12 | 2009-05-07 | Asahi Glass Company, Limited | Curable composition and fluorinated cured product |
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