DE437010C - Process for the extraction of bituminous substances - Google Patents

Process for the extraction of bituminous substances

Info

Publication number
DE437010C
DE437010C DEA46324D DEA0046324D DE437010C DE 437010 C DE437010 C DE 437010C DE A46324 D DEA46324 D DE A46324D DE A0046324 D DEA0046324 D DE A0046324D DE 437010 C DE437010 C DE 437010C
Authority
DE
Germany
Prior art keywords
extraction
bituminous substances
extract
benzene
naphthalene
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
DEA46324D
Other languages
German (de)
Inventor
Dr Erik Reissmann
Dr Adolf Richter
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 DEA46324D priority Critical patent/DE437010C/en
Application granted granted Critical
Publication of DE437010C publication Critical patent/DE437010C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G73/00—Recovery or refining of mineral waxes, e.g. montan wax

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Working-Up Tar And Pitch (AREA)

Description

Verfahren zur Extraktion bituminöser Stoffe. Die Extraktion bituminöser Stoffe wird bisher in vorwiegendem Maße mit Benzol ausgeführt. Die großen Verdampfungsverluste, der Zwang, bei verhältnismäßig niedriger Temperatur - dem Siedepunkte des Benzols - arbeiten zu müssen, und der hohe Preis führten zu anderen Vorschlägen, andere Extraktionsmittel, wie Naphthalin, seine Hydrierungsprodukte u. dgl., zu verwenden. Ihre Verwendung hat aber auch verschiedene Nachteile. So gelingt z. B. die Trennung des Naphthalins vom Kohleextrakt nicht völlig, da sich Kondensationsprodukte zu bilden scheinen (vgl. Oswald und P i n t a , Compt. rend. 178, S. 155z [192q.], Chimie et Industrie, 12, S.415 [19241). Der ausgedehnten Verwendung von Derivaten des -Naphthalins, wie Tetralin und Dekalin, steht auch der hohe Preis dieser Produkte entgegen.Process for the extraction of bituminous substances. The extraction of bituminous substances has so far been carried out mainly with benzene. The large evaporation losses, the need to work at a relatively low temperature - the boiling point of benzene - and the high price led to other proposals to use other extraction agents, such as naphthalene, its hydrogenation products and the like. However, their use also has various disadvantages. So z. B. the separation of the naphthalene from the coal extract is not complete, since condensation products seem to form (cf. Oswald and P inta, Compt. Rend. 178, p. 155z [192q.], Chimie et Industrie, 12, p.415 [19241 ). The widespread use of naphthalene derivatives such as tetralin and decalin is also offset by the high price of these products.

Wie gefunden wurde, stellt der in flüssiger schwefliger Säure lösliche, bei der Olraffination nach dem Verfahren von Edeleanu als Abfallprodukt erhaltene Edeleanu-Extrakt ein ausgezeichnetes Lösungsmittel für bituminöse Stoffe dar. Bei dem neuen Extraktionsmittel sind infolge der höheren Siedegrenzen die Verdampfungsverluste sehr gering, andererseits sind die Ausbeuten gegenüber dem Benzol infolge der höheren Extraktionstemperatur besser. Die Extraktion kann bei normalem, erhöhtem oder vermindertem Druck vorgenommen werden. Die Abtrennung des Lösungsmittels vom Extrakt geschieht in der üblichen Weise.As has been found, the soluble in liquid sulphurous acid, obtained as waste product from oil refining by the Edeleanu process Edeleanu extract is an excellent solvent for bituminous substances The evaporation losses are due to the higher boiling point of the new extractant very low, on the other hand the yields compared to benzene are higher because of the higher Extraction temperature better. The extraction can be performed at normal, increased or decreased Pressure can be made. The solvent is separated off from the extract in the usual way.

Je nach der Höhe der Temperatur, bei der die Extraktion vorgenommen werden soll, und der Natur der zu extrahierenden Stoffe kann der gesamte Edeleanu-Extrakt oder eine Fraktion davon verwendet werden. Beispiel: Eine bis zur Gewichtskonstanz getrocknete mitteldeutsche Braunkohle wird mit Benzol, Naphthalin, Dekalin und der bis 21o° siedenden Fraktion des Edeleanu-Extraktes nach dem Gräfeschen Verfahren extrahiert. Die Extraktmengen betragen bei Verwendung von Benzol 4,6 Prozenf, von Naphthalin 6,2 Prozent, von Dekalin 5,3 Prozent und von E.deleanu-Extrakt 6,2 Prozent.Depending on the temperature at which the extraction is to be carried out and the nature of the substances to be extracted, all or a fraction of the Edeleanu extract can be used. Example: A Central German lignite dried to constant weight is extracted with benzene, naphthalene, decalin and the fraction of the Edeleanu extract boiling up to 210 ° using the Graefean method. When using benzene, the extract amounts are 4.6 percent, naphthalene 6.2 percent, decalin 5.3 percent and E. deleanu extract 6.2 percent.

Claims (1)

PATRXT-ANSPRUCH : Verfahren zur Extraktion bituminöser Stoffe, dadurch gekennzeichnet, daß als Extraktionsmittel die in flüssiger schwefliger Säure löslichen Anteile von Mineralölen, Teeren usw. verwendet werden.PATRXT CLAIM: Process for the extraction of bituminous substances, thereby characterized in that the extractants soluble in liquid sulfurous acid Parts of mineral oils, tars, etc. are used.
DEA46324D 1925-11-08 1925-11-08 Process for the extraction of bituminous substances Expired DE437010C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA46324D DE437010C (en) 1925-11-08 1925-11-08 Process for the extraction of bituminous substances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA46324D DE437010C (en) 1925-11-08 1925-11-08 Process for the extraction of bituminous substances

Publications (1)

Publication Number Publication Date
DE437010C true DE437010C (en) 1926-11-10

Family

ID=6935208

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA46324D Expired DE437010C (en) 1925-11-08 1925-11-08 Process for the extraction of bituminous substances

Country Status (1)

Country Link
DE (1) DE437010C (en)

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