DE547080C - Process for the production of aromatic hydrocarbons - Google Patents

Process for the production of aromatic hydrocarbons

Info

Publication number
DE547080C
DE547080C DEB115771D DEB0115771D DE547080C DE 547080 C DE547080 C DE 547080C DE B115771 D DEB115771 D DE B115771D DE B0115771 D DEB0115771 D DE B0115771D DE 547080 C DE547080 C DE 547080C
Authority
DE
Germany
Prior art keywords
aromatic hydrocarbons
production
catalysts
tellurium
selenium
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
DEB115771D
Other languages
German (de)
Inventor
Dr Franz Kraegeloh
Dr Wilhelm Pungs
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 DEB115771D priority Critical patent/DE547080C/en
Application granted granted Critical
Publication of DE547080C publication Critical patent/DE547080C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/08—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of gallium, indium or thallium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2527/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • C07C2527/02—Sulfur, selenium or tellurium; Compounds thereof
    • C07C2527/057—Selenium or tellurium; Compounds thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Description

Verfahren zur Herstellung aromatischer Kohlenwasserstoffe Im Hauptpatent 509 4o6 ist ein Verfahren zur Herstellung vön aromatischen Kohlenwasserstoffen aus bei gewöhnlicher Temperatur gasförmigen, aliphatischen Kohlenwasserstoffen durch Uberleiten über Katalysatoren bei Temperaturen oberhalb 400' beschrieben, wobei man als Katalysatoren die Carbonate oder andere Sauerstoffsalze der Erdalkalien einschließlich des Magnesiums und Berylliums für sich oder im Gemisch untereinander benutzt und gegebenenfalls in Gegenwart von wasserstoffhaltigen Verdünnungsgasen arbeitet. In dem Zusatzpatent 545 =64 ist ferner angegeben, daß man als Katalysatoren auch Hydroxyde des Magnesiums, des Berylliums oder Oxyde des Berylliums für sich oder in Gemischen verwenden kann. Bei längerer Verwendung der genannten Katalysatoren wurde beobachtet, daß deren kataiytische Wirkung im Laufe der Zeit durchweg zunimmt.Process for the production of aromatic hydrocarbons The main patent 509 406 describes a process for the production of aromatic hydrocarbons from aliphatic hydrocarbons, which are gaseous at normal temperature, by passing them over catalysts at temperatures above 400 ', the carbonates or other oxygen salts of alkaline earths including magnesium being used as catalysts and beryllium used alone or in a mixture with one another and optionally works in the presence of hydrogen-containing diluent gases. In the additional patent 545 = 64 it is also stated that hydroxides of magnesium, beryllium or oxides of beryllium can be used individually or in mixtures as catalysts. With prolonged use of the catalysts mentioned, it has been observed that their catalytic effect increases consistently in the course of time.

Es wurde nun gefunden, daß auch Verbindungen des Selens, Tellurs und Thalliums sowie aktive Kieselsäure in gleich günstiger Weise den Übergang gasförmiger aliphatischer Kohlenwasserstoffe in aromatische Kohlenwasserstoffe herbeiführen. Die Wirksamkeit dieser Katalysatoren nimmt ebenfalls im allgemeinen während der Verwendung zu. Im Gegensatz zu anderen bekannten Katalysatoren, wie z. B. Quarz usw., wird durch die beanspruchten Katalysatoren eine hohe Ausbeute an flüssigen Produkten, insbesondere an Benzol, erzielt, ohne daß ein Verrußen und Unwirksamwerden der Katalysatoren stattfindet.It has now been found that compounds of selenium, tellurium and Thallium as well as active silica in the same favorable way the transition from gaseous bring about aliphatic hydrocarbons into aromatic hydrocarbons. The effectiveness of these catalysts also generally decreases during the Use too. In contrast to other known catalysts, such as. B. Quartz etc., the claimed catalysts result in a high yield of liquid Products, especially benzene, achieved without sooting and becoming ineffective the catalysts takes place.

Beispiel Schamottestückchen werden mit Tellurnitrat überzogen. Man glüht und füllt den Katalysator in einen vertikal gestellten Ofen, der auf 5oo bis 8oo° geheizt wird. Sodann leitet man über diesen Katalysator ein Gemisch von z Vol. Acetylen und 3 Vol. Wasserstoff. Unter geringer Abscheidung von Kohlenstoff entsteht dabei ein Gas, aus dem man durch Kühlung allmählich zunehmende Ausbeuten eines Kondensats erhält, das neben höheren aromatischen Bestandteilen bis zu etwa 52 °/o Rohbenzol enthält.Example Fireclay pieces are coated with tellurium nitrate. Man Glows and fills the catalyst in a vertically placed furnace, which is set to 500 to 8oo ° is heated. A mixture of z vol. Acetylene and 3 vol. Hydrogen. Forms with little deposition of carbon this is a gas from which gradually increasing yields of a condensate can be obtained by cooling receives, in addition to higher aromatic constituents up to about 52% crude benzene contains.

Ähnlich kann man bei Verwendung von anderen Verbindungen des Tellurs oder von Selen-oder Thalliumverbindungen oder aktiver Kieselsäure verfahren.The same can be said of using other compounds of tellurium or from selenium or thallium compounds or active silica.

Claims (1)

PATENTANSPRUCH: Weitere Ausbildung des Verfahrens des Hauptpatentes 509 4o6, dadurch gekennzeichnet, daß Katalysatoren verwendet werden, die Verbindungen des Selens, Tellurs und Thalliums oder aktive Kieselsäure oder Gemische solcher enthalten.PATENT CLAIM: Further development of the process of the main patent 509 406, characterized in that catalysts are used which contain compounds of selenium, tellurium and thallium or active silica or mixtures thereof.
DEB115771D 1924-09-21 1924-09-21 Process for the production of aromatic hydrocarbons Expired DE547080C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB115771D DE547080C (en) 1924-09-21 1924-09-21 Process for the production of aromatic hydrocarbons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB115771D DE547080C (en) 1924-09-21 1924-09-21 Process for the production of aromatic hydrocarbons

Publications (1)

Publication Number Publication Date
DE547080C true DE547080C (en) 1932-03-22

Family

ID=6994125

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB115771D Expired DE547080C (en) 1924-09-21 1924-09-21 Process for the production of aromatic hydrocarbons

Country Status (1)

Country Link
DE (1) DE547080C (en)

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