US1665665A - Process for producing a hard low-temperature coke - Google Patents

Process for producing a hard low-temperature coke Download PDF

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US1665665A
US1665665A US142774A US14277426A US1665665A US 1665665 A US1665665 A US 1665665A US 142774 A US142774 A US 142774A US 14277426 A US14277426 A US 14277426A US 1665665 A US1665665 A US 1665665A
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producing
hard low
tar
coke
temperature coke
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US142774A
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Jahnke Kurt
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
    • C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization

Definitions

  • PROCESS FOR PRODUCING A HARD LOW-TEMPERATURE COKE PROCESS FOR PRODUCING A HARD LOW-TEMPERATURE COKE.
  • crushed and pulverized spongy iron ore as for instance, crystallized ferrocarbo-nate, FeCQ which can be used as it is mined or it can be produced chemically, is mixed with abituminous material such as 5 tar, coal tar, brown coal tar, etc.
  • abituminous material such as 5 tar, coal tar, brown coal tar, etc.
  • ferrocarbonate other compounds can also be used which will easily react at lowcoking temperatures and instead of the tar, also pitch of the compounds mentioned can be used as well as colophony or similar substances" which will yield a residue during distillation.
  • This mixture is then introduced into the pulverized fuel after which an intimate and homogeneous mixing of the materials is effected. Thereafter the fuel together with the admixed substances is subjected to the usual low temperature dry carbonization process wherein a temperature of approximately 500 C. is utilized and the necessary carbonization time. of approximately 12 to 18 hours is adhered to.
  • FeCO and tar as specified, varies, depending upon the specific fuel used. the amount of ferrocarbonate varying between 1% to and tar between 1% to 10% by weight of the fuel.
  • the sphere of use of the coke produced by this process can be extended to include a l industries and particularly n'ietallurgical industries, since the coke is hardened to such an extent, that it withstands the pressure of the blast furnace and is more easily c6111- bustible, and furthermore, the added substances do not interfere.
  • the added substances admixed with the fuel are all equally essential, that is, the ferrocarbonate is as essential as the tar, since it has been proven by experiments that the ferrocarbonate acts as a hardening agent and the tar as a binding agent.
  • Coal is the specific fuel used and by that term is included anthracite, bituminous and lignite coals.
  • a process for producing hard low temperature coke which comprises the steps of mixinga pulverized coal with a mixture of pulverized ferrocarbonate and a bituminous material; and subjecting this mixture to low temperature carbonization.
  • a process for producing hard low temperature coke which consists in the steps of mixing ferrocarbonat with tar; mixing this mixture with a pulv rized coal; and sub- 05 jectingthe second mixture to low temperature carbonization.
  • a process for producing hard low temperature coke which comprises the Steps of mixing a pulverized coal with a mixture of To pulverized ferrocarbonate and a substance which will yield a residue upon distillation; and subjecting this mixture to low temperature carbonization.
  • a process for producing hard low temis .pcrature coke which comprises the steps of mixing a pulverized coal with a mixture of pulverized crystallized ferrocarbonate and coal tar; and subjecting this mixture to low temperature carbonization.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Description

Patented Apr. 10, 1928.
UNITED STATES KURT J'AHNKE, OF LUDWIGSBURG, GERMANY.
PROCESS FOR PRODUCING A HARD LOW-TEMPERATURE COKE.
No Drawing. Application filed October 19, 1926, Serial No. 142,774, and in Germany May 2, 1924.
The half-coke heretofore technically produced can only find industrial use when made into briquets or when utilized in a coal dust furnace since, due to its brittle and fragile characteristics, it is practically impossible to transport it or to move it, even though the distance is small. These disadvantages have been overcome by means of the following process.
The crushed and pulverized spongy iron ore, as for instance, crystallized ferrocarbo-nate, FeCQ which can be used as it is mined or it can be produced chemically, is mixed with abituminous material such as 5 tar, coal tar, brown coal tar, etc. Instead of the ferrocarbonate, other compounds can also be used which will easily react at lowcoking temperatures and instead of the tar, also pitch of the compounds mentioned can be used as well as colophony or similar substances" which will yield a residue during distillation.
This mixture is then introduced into the pulverized fuel after which an intimate and homogeneous mixing of the materials is effected. Thereafter the fuel together with the admixed substances is subjected to the usual low temperature dry carbonization process wherein a temperature of approximately 500 C. is utilized and the necessary carbonization time. of approximately 12 to 18 hours is adhered to.
The addition of FeCO and tar, as specified, varies, depending upon the specific fuel used. the amount of ferrocarbonate varying between 1% to and tar between 1% to 10% by weight of the fuel.
The sphere of use of the coke produced by this process can be extended to include a l industries and particularly n'ietallurgical industries, since the coke is hardened to such an extent, that it withstands the pressure of the blast furnace and is more easily c6111- bustible, and furthermore, the added substances do not interfere.
The added substances admixed with the fuel are all equally essential, that is, the ferrocarbonate is as essential as the tar, since it has been proven by experiments that the ferrocarbonate acts as a hardening agent and the tar as a binding agent.
Coal is the specific fuel used and by that term is included anthracite, bituminous and lignite coals.
I claim as my invention:
1. A process for producing hard low temperature coke which comprises the steps of mixinga pulverized coal with a mixture of pulverized ferrocarbonate and a bituminous material; and subjecting this mixture to low temperature carbonization.
2. A process for producing hard low temperature coke which consists in the steps of mixing ferrocarbonat with tar; mixing this mixture with a pulv rized coal; and sub- 05 jectingthe second mixture to low temperature carbonization.
3. A process for producing hard low temperature coke which comprises the Steps of mixing a pulverized coal with a mixture of To pulverized ferrocarbonate and a substance which will yield a residue upon distillation; and subjecting this mixture to low temperature carbonization.
A process for producing hard low temis .pcrature coke which comprises the steps of mixing a pulverized coal with a mixture of pulverized crystallized ferrocarbonate and coal tar; and subjecting this mixture to low temperature carbonization.
In testimony whereof I affix my signature.
KURTJAHNKE.
US142774A 1924-05-02 1926-10-19 Process for producing a hard low-temperature coke Expired - Lifetime US1665665A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2512076A (en) * 1945-06-07 1950-06-20 Inst Gas Technology Method of carbonizing coal with iron oxide
US2812248A (en) * 1953-11-06 1957-11-05 Koppers Co Inc Process of treating iron ores with tar

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2512076A (en) * 1945-06-07 1950-06-20 Inst Gas Technology Method of carbonizing coal with iron oxide
US2812248A (en) * 1953-11-06 1957-11-05 Koppers Co Inc Process of treating iron ores with tar

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