US563527A - Thomas l - Google Patents
Thomas l Download PDFInfo
- Publication number
- US563527A US563527A US563527DA US563527A US 563527 A US563527 A US 563527A US 563527D A US563527D A US 563527DA US 563527 A US563527 A US 563527A
- Authority
- US
- United States
- Prior art keywords
- carbon
- calcium
- lime
- furnace
- thomas
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 32
- 229910052799 carbon Inorganic materials 0.000 description 30
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 18
- 229910052791 calcium Inorganic materials 0.000 description 18
- 239000011575 calcium Substances 0.000 description 18
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 16
- 235000015450 Tilia cordata Nutrition 0.000 description 16
- 235000011941 Tilia x europaea Nutrition 0.000 description 16
- 239000004571 lime Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 10
- 150000001674 calcium compounds Chemical class 0.000 description 8
- 238000010891 electric arc Methods 0.000 description 8
- 150000002430 hydrocarbons Chemical class 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 229940077747 antacids containing calcium compounds Drugs 0.000 description 4
- 229940043430 calcium compounds Drugs 0.000 description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- 239000000571 coke Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000003638 reducing agent Substances 0.000 description 4
- 238000005275 alloying Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/90—Carbides
- C01B32/914—Carbides of single elements
- C01B32/942—Calcium carbide
Definitions
- This electric arc must be of sufficiently definite character to be distinguished from the mere heat of intion.
- the reducing agents which I employ are preferably carbon inthe form of coke, but hydrocarbons may be employedin ad- .mixture with the lime and coke, or the lime may be saturated with a liquid hydrocarbon.
- the electric furnace is preferably of the kind having a carbon or graphite crucible or hearth connected to one terminal of a suitable dynamo, and a carbon pencil connected to the opposite terminal thereof, and the carbon and calcium oxid are fed into the polar interspace.
- the carbon pencil should be in contact with the crucible or hearth, or so close to the same that a current of electricity may pass.
- the carbon pencil is lifted so as to strike an arc, and during the. process this are is maintained by keeping the pencil sufficiently lifted to maintain a space between it and the conductor beneath.
- the intense heat of the arc decomposes the lime, the oxygen combining with the carbon, forming a carbon Inonoxid or dioxid, which escapes in gaseous form,while the calcium, or the greater part of it, combines with the carbon, forming a calcium carbid.
- the candescence which is 510 part of this inven-.
- the product is taken from the furnace and should be kept, if desired to be preserved, free from contact with the air or moisture.
Description
UNITED STATES PATENT OFFICE.
THOMAS L. WILLSON, on NEW YORK, N. Y.
PaocEs-s OF PRODUCING CALCIUM COMPOUNDS.
SPECIFICATION forming part of Letters Patent No. 563,527, dated July 7, 1896.
Application filed March 16, 1893. Serial No. 466,362. (No specimens.)
T0 on whom it may concern.-
Be it known that I, THOMAS L.-W1LLsoN, a citizen of the United States, residing in the city, county, and State of- New York, have invented certain new and useful Improvements in the Production of Calcium Oarbids, of which the following is a specification.
The process of producing said calcium compounds, generally known as calcium carbid, is as follows:
I take finely-divided calcium oxid or lime, which may be anhydrous, and finely-divided carbon in about the proportions of thirty-five per cent. of carbon and sixty-five per cent. of lime, and, having mingled them thoroughly together, subject them to the action of an electric arc in a furnace. This electric arc must be of sufficiently definite character to be distinguished from the mere heat of intion. The reducing agents which I employ are preferably carbon inthe form of coke, but hydrocarbons may be employedin ad- .mixture with the lime and coke, or the lime may be saturated with a liquid hydrocarbon. The electric furnaceis preferably of the kind having a carbon or graphite crucible or hearth connected to one terminal of a suitable dynamo, and a carbon pencil connected to the opposite terminal thereof, and the carbon and calcium oxid are fed into the polar interspace.
To start the operation, the carbon pencil should be in contact with the crucible or hearth, or so close to the same that a current of electricity may pass. After establishing the current the carbon pencil is lifted so as to strike an arc, and during the. process this are is maintained by keeping the pencil sufficiently lifted to maintain a space between it and the conductor beneath. The intense heat of the arc decomposes the lime, the oxygen combining with the carbon, forming a carbon Inonoxid or dioxid, which escapes in gaseous form,while the calcium, or the greater part of it, combines with the carbon, forming a calcium carbid. At the conclusion of the candescence, which is 510 part of this inven-.
operation the product is taken from the furnace and should be kept, if desired to be preserved, free from contact with the air or moisture.
I am aware of the patent to Oowles of June 9, 1885, for electric furnace, but this furnace does not operate by an are passing in contact or close proximity to a mass of finely-divided carbon and lime, and therefore does not carry out the process of this invention. It is furthermore important to have an excess of carbonaceous matter over that necessary to unite with the oxygen, so as to enable the calcium to unite with such excess of carbon.
I do not in this application claim the mak- .ing of metallic alloys by alloying the metal of an elect-rode with the metal of a bath in an electric-furnace.
That which I claim as of my invention or discovery, and desire'to protect by Letters Patent, is as follows:
1. The herein-described process of producing a calcium compound, which consists in sub ecting mingled lime and a carbonaceous .deoxidizing agent to the heat of an electric arc in an electric furnace, the carbonaceous matter being in excess of that required to combine with the freed oxygen, whereby the liberated calcium combines with the excess of carbon to form a calcium carbid, substantially as described. w
2. The herein-described process of producing a calcium compound, which consists in mingling lime with a liquid reducing agent, such as liquid hydrocarbon, drying the said mixture, and subjecting it to the heat of an electric arc in an electric furnace, whereby the liberated calcium combines with the carbon to form a calcium carbid, substantially as described.
In witness whereof I have hereunto signed my name in the presence of two subscribing
Publications (1)
Publication Number | Publication Date |
---|---|
US563527A true US563527A (en) | 1896-07-07 |
Family
ID=2632247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US563527D Expired - Lifetime US563527A (en) | Thomas l |
Country Status (1)
Country | Link |
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US (1) | US563527A (en) |
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- US US563527D patent/US563527A/en not_active Expired - Lifetime
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