DE508771C - Process for preventing the deposition of carbon in and on heated ceramic materials - Google Patents

Process for preventing the deposition of carbon in and on heated ceramic materials

Info

Publication number
DE508771C
DE508771C DEI33924D DEI0033924D DE508771C DE 508771 C DE508771 C DE 508771C DE I33924 D DEI33924 D DE I33924D DE I0033924 D DEI0033924 D DE I0033924D DE 508771 C DE508771 C DE 508771C
Authority
DE
Germany
Prior art keywords
carbon
deposition
preventing
copper
ceramic materials
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
Application number
DEI33924D
Other languages
German (de)
Inventor
Dr Hermann Leuchs
Dr Hans Wolf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI33924D priority Critical patent/DE508771C/en
Application granted granted Critical
Publication of DE508771C publication Critical patent/DE508771C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/04—Clay; Kaolin
    • C04B33/06—Rendering lime harmless
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/30—Drying methods
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/32—Burning methods
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Description

Verfahren zur Verhinderung der Abscheidung von Kohlenstoff in und auf erhitzten keramischen Materialien Es ist bekannt, daß Eisen oder Eisenoxyd enthaltende keramische Massen bei höheren Temperaturen aus kohlenstoffhaltigen Gasen, wie z. B. Generatorgas, Kohlenstoff abscheiden. Dadurch werden in der Regel die Steine nicht nur oberflächlich verändert, sondern auch in ihrem inneren Gefüge zerstört. In bestimmten Fällen, z. B. bei Regeneratoren, werden auch ohne eigentliche Zerstörung infolge Verstopfung der Poren mit Kohlenstoff und dadurch bewirkte Behinderung des Wärmeaustausches die Steine unbrauchbar.Method of preventing the deposition of carbon in and on heated ceramic materials It is known that iron or iron oxide containing ceramic masses at higher temperatures from carbon-containing gases, such as. B. generator gas, deposit carbon. This usually causes the stones not only changed on the surface, but also destroyed in their inner structure. In certain cases, e.g. B. with regenerators, are also without actual destruction as a result of clogging of the pores with carbon and the resulting obstruction of the Heat exchange makes the stones unusable.

Es wurde nun die überraschende Beobachtung gemacht, daß die Kohlenstoffabscheidung in und auf keramischen Materialien, die in der Hitze mit kohlenstoffhaltigen Gasen in Berührung kommen, vermieden wird, wenn man diesen Materialien Kupfer zuführt. Es ist dabei gleichgültig, ob das Kupfer schon bei der Herstellung des keramischen Körpers durch Verwendung kupferhaltiger Ausgangsstoffe oder durch Zugabe, zweckmäßig in Form einer Lösung oder Suspension, in irgendeinem Stadium des Fabrikationsprozesses oder erst dem Fertigfabrikat oder dem daraus hergestellten Gegen stand durch Mischen, Tränken, Bespritzen, Bepinseln oder in sonst einer geeigneten Weise zugeführt wird.The surprising observation has now been made that the carbon deposition in and on ceramic materials that are exposed to heat with carbonaceous gases come into contact is avoided by adding copper to these materials. It does not matter whether the copper is already used in the manufacture of the ceramic Body by using copper-containing raw materials or by adding, expedient in the form of a solution or suspension, at any stage of the manufacturing process or only the finished product or the object manufactured from it by mixing, Soaking, spraying, brushing or in any other suitable manner is supplied.

Wird das Kupfer schon bei der Herstellung den keramischen Massen zugeführt, so genügt es, wenn nur der eisenhaltige Bestandteil des zur Herstellung der keramischen Masse verwendeten Ausgangsmaterials mit kupferhaltigen Stoffen oder deren Suspensionen oder Lösungen behandelt wird.If the copper is added to the ceramic mass during manufacture, it is sufficient if only the ferrous component is used to manufacture the ceramic Mass of raw material used with copper-containing substances or their suspensions or solutions is dealt with.

Unter Umständen kann auch fein verteiltes Kupfer, z. B. in Form von Bronzepulver, benutzt werden.Finely divided copper, e.g. B. in the form of Bronze powder.

Den keramischen Körpern, deren Ausgangsmaterialien oder den Kupferlösungen können, um die Aufnahme des Kupfers zu fördern, mit Vorteil Benetzungsmittel beliebiger Art, wie z. B. alkylierte aromatische Sulfosäuren oder deren Salze, zugegeben werden. Beispiel Chamottesteine werden mit einer ro°/oigen ammoniakalischen Kupfersulfatlösung benetzt oder einige Minuten in die Lösung eingetaucht, worauf man sie nach dem Herausnehmen abtropfen läßt.. Die so erhaltenen Steine werden an der Luft getrocknet. Sie zeigen, z. B. bei ihrer Verwendung als Futtersteine in einem Braunkohlengenerator, nach längerem Gebrauch keinerlei Kohlenstoffablagerung.The ceramic bodies, their starting materials or the copper solutions In order to promote the uptake of the copper, any wetting agent with advantage can be used Kind such as B. alkylated aromatic sulfonic acids or their salts are added. Example Chamotte stones are made with a ro% ammoniacal copper sulphate solution wetted or immersed in the solution for a few minutes, after which you can they drain after taking them out .. The stones obtained in this way are attached to the Air dried. They show z. B. when used as lining stones in one Lignite generator, no carbon build-up after prolonged use.

Claims (1)

FATr,NTANSPRUCH: Verfahren zur Verhinderung der Abscheidung von Kohlenstoff aus kohlenstoffhaltigen Gasen in und auf erhitzten keramischen Massen, dadurch gekennzeichnet, daß diesen Massen Kupfer oder kupferhaltige Stoffe zugesetzt werden.FATr, NT claim: Process to prevent the deposition of carbon from carbon-containing gases in and on heated ceramic masses, characterized in that that copper or copper-containing substances are added to these masses.
DEI33924D 1928-03-23 1928-03-23 Process for preventing the deposition of carbon in and on heated ceramic materials Expired DE508771C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI33924D DE508771C (en) 1928-03-23 1928-03-23 Process for preventing the deposition of carbon in and on heated ceramic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI33924D DE508771C (en) 1928-03-23 1928-03-23 Process for preventing the deposition of carbon in and on heated ceramic materials

Publications (1)

Publication Number Publication Date
DE508771C true DE508771C (en) 1930-10-01

Family

ID=7188560

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI33924D Expired DE508771C (en) 1928-03-23 1928-03-23 Process for preventing the deposition of carbon in and on heated ceramic materials

Country Status (1)

Country Link
DE (1) DE508771C (en)

Similar Documents

Publication Publication Date Title
EP0134254B1 (en) Method of making silicon-infiltrated reaction-bonded silicom carbide bodies
DE69123631T2 (en) Coating of steel bodies
DE1250333B (en) Refractory articles and processes for their manufacture
DE508771C (en) Process for preventing the deposition of carbon in and on heated ceramic materials
DE2244773A1 (en) METAL-CERAMIC SHAPED BODY
DE882220C (en) Sintered coal shaped bodies and process for their production
EP0036558A1 (en) Coated metal article and method of manufacturing the same
DE2256739B2 (en) Method of manufacturing an electrolytic capacitor
DE1019140B (en) Process for the surface treatment of metals by applying layers of silicate
CH201050A (en) Process for the production of hard bodies for tools and equipment, drawing dies, bullet tips, nozzles, slide bearings, cutting edges for scales, etc.
DE914337C (en) Process for the cathodic production of hydroxydic, oxide and carbonate protective layers on metals
DE660225C (en) Process for the production of porous, solid and shaped gas cleaning compounds
AT54714B (en) Process for the production of metal coatings.
DE557483C (en) Process for the galvanic chrome-plating of steel objects or parts thereof, the surface of which is large in comparison to the mass
DE1947963A1 (en) Corrosion-resistant sintered metal article and method for making the same
AT229780B (en) Process for increasing the resistance of refractory bricks to attack by molten slag, glass flows, aggressive gases, etc.
CH121194A (en) Method for preventing the change in resistance during operation of non-metallic electrical resistors, in particular those which mainly consist of silicon carbide.
AT34031B (en) Process for the preparation of nitric acid from ammonia and air by means of a platinum contact mass.
DE678450C (en) Process for enamelling metallic objects
DE606574C (en) Process for the production of nickel anodes
DE591242C (en) Process for cleaning metal surfaces
DE868738C (en) Process for the production of moldings
AT40718B (en) Process for making non-conductors conductive for the application of galvanic coatings.
DE709248C (en) Procedure for sharpening files
DE426083C (en) Process for the production of a base-exchanging material from clay for the dehydration of water