DE466264C - Process for cleaning base-free and phenol-free coal tar oil - Google Patents

Process for cleaning base-free and phenol-free coal tar oil

Info

Publication number
DE466264C
DE466264C DEW70172D DEW0070172D DE466264C DE 466264 C DE466264 C DE 466264C DE W70172 D DEW70172 D DE W70172D DE W0070172 D DEW0070172 D DE W0070172D DE 466264 C DE466264 C DE 466264C
Authority
DE
Germany
Prior art keywords
free
coal tar
phenol
cleaning base
oils
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
DEW70172D
Other languages
German (de)
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.)
HERBERT WITTEK DR
Original Assignee
HERBERT WITTEK DR
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 HERBERT WITTEK DR filed Critical HERBERT WITTEK DR
Priority to DEW70172D priority Critical patent/DE466264C/en
Application granted granted Critical
Publication of DE466264C publication Critical patent/DE466264C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C1/00—Working-up tar
    • C10C1/20—Refining by chemical means inorganic or organic compounds

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Description

Verfahren zum Reinigen von Base- und phenolfreien Steinkohlenurteerölen Die bekannten unangenehmenEigenschaften der Steinkohlenurteeröldestillate,einen unangenehmen Geruch zu verbreiten und nach kurzer Zeit nachzudunkeln und zu verharzen, haben zu deren Beseitigung der Erfindung gemäß geführt.Process for cleaning base- and phenol-free coal tar oils The well-known unpleasant properties of coal tar oil distillates, one to spread an unpleasant smell and to darken and resinify after a short time, have led to their elimination according to the invention.

In der Erkenntnis, daß die Beseitigung der erwähnten Übelstände durch die übliche Reinigung der Rohfraktion für sich nur unter beträchtlichem Aufwande von Reinigungsmitteln und bei erheblichen Verlusten an Ausgangsmaterial möglich ist, «-erden die Steinkohlenurteeröle inVerdünnung initParaffinöl oder größtenteils aus Kohlenwasserstoffen der Paraffinreihe bestehenden Ülen, z.B. Petroleumdestillaten, gereinigt. Hierauf können die so erhaltenen Produkte durch Destillation vom Lösungsmittel getrennt werden. Letzteres kann für das gleiche Verfahren mit weiteren Rohölmengen verwendet werden.Recognizing that the elimination of the evils mentioned by the usual purification of the crude fraction by itself only with considerable effort cleaning agents and in the event of significant losses of raw material is, "- the hard coal tar oils in dilution with paraffin oil or largely oils consisting of hydrocarbons of the paraffin series, e.g. petroleum distillates, cleaned. The products thus obtained can then be removed from the solvent by distillation be separated. The latter can be used for the same process with additional quantities of crude oil be used.

Das gleiche Verfahren eignet sich besonders zur Reinigung der von den Basen und Phenölen befreiten Leichtölfraktion des Steinkohlenurteers. Hierbei wird zweckmäßig Petroleumbenzin als Lösungsmittel benutzt.The same procedure is particularly suitable for cleaning the from the bases and phenols freed the light oil fraction of the coal tar. Here Petroleum benzine is conveniently used as a solvent.

Beispiel i ioo Gewichtsteile der Phenol- und basefreien Urteerfraktion, ioo bis 2oo°, werden in der gleichen Menge Paraffinöl gelöst und mit 2 °/o des Gewichts konzentrierter Schwefelsäure kräftig durchgeschüttelt. Nach Ablassen der Schwefelsäureschicht und dem üblichen Auswaschen der Säure wird das gereinigte Leichtöl aus seiner Lösung in Paraffinöl abdestilliert. Das zurückbleibende Paraffinöl kann für weitere Reinigungsoperationen benutzt werden. Beispiel e ioo Gewichtsteile der Phenol- und basefreien Urteerkrackdestillate vom Siedepunkt 3o bis i5o° oder eines aus Steinkohle unter Wasserstoffdruck gewonnenen Krackdestillates des gleichen Siedepunktes werden in der gleichen Menge Petroleumbenzin von annähernd gleichem Siedepunkt gelöst und die Lösung mit i ojo des Gewichts konzentrierter Schwefelsäure kräftig durchgeschüttelt. Nach Ablassen der Schw efelsäureschicht wird die Säure wie üblich ausgewaschen und das gereinigte 01 nochmals destilliert. Man erhält unter Verlust von nur 41,`o ein Destillat, das ein Motorenbenzin von guter Qualität darstellt.EXAMPLE 100 parts by weight of the phenol- and base-free tar fraction, 100 to 200 °, are dissolved in the same amount of paraffin oil and shaken vigorously with 2% of the weight of concentrated sulfuric acid. After the sulfuric acid layer has been drained off and the acid has been washed out as usual, the purified light oil is distilled off from its solution in paraffin oil. The remaining paraffin oil can be used for further cleaning operations. Example e 100 parts by weight of the phenol and base-free original tar cracking distillates from boiling point 30 to 150 ° or a cracking distillate of the same boiling point obtained from coal under hydrogen pressure are dissolved in the same amount of petroleum spirit of approximately the same boiling point and the solution is vigorously shaken with 100% by weight of concentrated sulfuric acid . After draining, the acid is Sw efelsäureschicht as usual, washed and the purified 01 again distilled. With the loss of only 41, `o, a distillate is obtained which is a good quality motor gasoline.

Claims (1)

PATE1TA\SPR@CIIE: i. Verfahren zum Reinigen von base-und phenolfreien Steinkohlenurteerölen, dadurch gekennzeichnet, daß man die Rohöle in Verdünnung finit Paraffinöl oder größtenteils aus Kohlenwasserstoffen der Paraffinreihe bestehenden ,Ölen,, z.B. Petroleumdestillaten; reinigt und- 'die so erhaltenen Produkte erforderlichenfalls durch Destillation vom Lösungsmittel trennt. z. Verfahren nach Anspruch i, gekennzeichnet durch dessen Anwendung auf die Base- und phenclfreie Leichtölfraktion des 5teinkohlenurteers unter Anwendüng voll Petroleumbenzin als Verdünnungsmittel.PATE1TA \ SPR @ CIIE: i. Process for cleaning base and phenol free Coal tar oils, characterized in that the crude oils are diluted finite paraffin oil or mostly from hydrocarbons of Paraffin series, oils, e.g. petroleum distillates; cleans and- 'those like that If necessary, the products obtained are separated from the solvent by distillation. z. The method according to claim i, characterized by its application to the base and phenyl-free light oil fraction of the 5-ton coal tar using full petroleum benzine as a diluent.
DEW70172D 1925-08-13 1925-08-13 Process for cleaning base-free and phenol-free coal tar oil Expired DE466264C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW70172D DE466264C (en) 1925-08-13 1925-08-13 Process for cleaning base-free and phenol-free coal tar oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW70172D DE466264C (en) 1925-08-13 1925-08-13 Process for cleaning base-free and phenol-free coal tar oil

Publications (1)

Publication Number Publication Date
DE466264C true DE466264C (en) 1928-10-01

Family

ID=7608570

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW70172D Expired DE466264C (en) 1925-08-13 1925-08-13 Process for cleaning base-free and phenol-free coal tar oil

Country Status (1)

Country Link
DE (1) DE466264C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743374C (en) * 1936-01-19 1943-12-23 Hoesch Ag Production of purified benzenes using the washing oil process
DE747401C (en) * 1937-06-26 1945-01-18 Steinkohlen Bergwerk Rheinpreu Process for the processing of coal tar oil in the settlement area 180 to 350íÒ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743374C (en) * 1936-01-19 1943-12-23 Hoesch Ag Production of purified benzenes using the washing oil process
DE747401C (en) * 1937-06-26 1945-01-18 Steinkohlen Bergwerk Rheinpreu Process for the processing of coal tar oil in the settlement area 180 to 350íÒ

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