DE299013C - - Google Patents
Info
- Publication number
- DE299013C DE299013C DENDAT299013D DE299013DA DE299013C DE 299013 C DE299013 C DE 299013C DE NDAT299013 D DENDAT299013 D DE NDAT299013D DE 299013D A DE299013D A DE 299013DA DE 299013 C DE299013 C DE 299013C
- Authority
- DE
- Germany
- Prior art keywords
- naphthalene
- hydrogen
- main patent
- treated
- addition
- 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.)
- Active
Links
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 16
- 239000003054 catalyst Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 238000006011 modification reaction Methods 0.000 claims 1
- 150000002790 naphthalenes Chemical class 0.000 claims 1
- 238000005984 hydrogenation reaction Methods 0.000 description 4
- 239000002904 solvent Substances 0.000 description 3
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N Tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002378 acidificating Effects 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002641 tar oil Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/02—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
- C07C5/10—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation of aromatic six-membered rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
In dem Hauptpatent ist ein Verfahren beschrieben zur Hydrierung von Naphthalin, dadurch gekennzeichnet, daß man Naphthalin in Damp'fform mit fein verteilten oder leicht schmelzbaren Metallen, Metallegierungen oder solchen Metallverbindungen, welche das Metall nur locker an einen nicht sauren Rest gebunden enthalten, entweder für^sich allein oder im Gemisch mit fein verteilten oder porösen Materialien, wie Fullererde u. dgl., in innige Berührung bringt und das so vorgereinigte Produkt unter Zusatz von Katalysatoren mit Wasserstoff behandelt.The main patent describes a process for the hydrogenation of naphthalene, thereby characterized in that one naphthalene in Damp'fform with finely divided or easily fusible metals, metal alloys or such metal compounds that the metal contained only loosely bound to a non-acidic residue, either on their own or in a mixture with finely divided or porous materials, such as fuller's earth and the like brings intimate contact and the pre-cleaned product with the addition of catalysts treated with hydrogen.
Es wurde nun gefunden, daß man den gleichen Effekt erreicht, wenn man Naphthalin in organischen Lösungsmitteln gelöst mit den gleichen Reinigungsmitteln behandelt. Beispielsweise werden 100 kg technisches Naphthalin in etwa der gleichen Menge Tetrahydronaphthalin zur Lösung gebracht und mit etwa ι kg Natrium bei 150° bis 200°. verrührt. Nach zwei- bis dreistündiger Behandlung wird das Produkt vom Rückstand abdestilliert oder abgepreßt und in Lösung unter Zusatz eines der industriell zur Anwendung kommenden wirksamen Katalysatoren mit Wasserstoff behandelt. Nach Aufnahme von etwa 3 kg Wasserstoff ist auch das Naphthalin in Tetrahydronaphthalin verwandelt. Dasselbe wird durch Filtration oder Dest; llation von dem Katalysator abgetrennt, der seinerseits für weitere Hydrierungen ohne weiteres verwendbar bleibt.It has now been found that the same effect is achieved if naphthalene is dissolved in organic solvents and treated with the same cleaning agents. For example, 100 kg of technical naphthalene are dissolved in approximately the same amount of tetrahydronaphthalene and with approximately ι kg of sodium at 150 ° to 200 °. stirred. After two to three hours of treatment, the product is distilled off or pressed off from the residue and treated with hydrogen in solution with the addition of one of the active catalysts used industrially. After absorbing about 3 kg of hydrogen, the naphthalene is also converted into tetrahydronaphthalene. The same is done by filtration or distillate ; Ilation separated from the catalyst, which in turn remains readily usable for further hydrogenations.
Bei Anwendung von Lösungsmitteln, welche, wie beispielsweise Petroleumdestillate (Benzin), Benzol, Solventnaphtha und andere Teerölfraktionen u. dgl., nicht aus Hydrierungsprodukten des Naphthalins bestehen, lassen sich die Lö- sungsmittel durch fraktionierte Destillation von dem gereinigten Naphthalin gegebenenfalls auch erst nach der Hydrierung selbst abtrennen. When using solvents which, such as petroleum distillates (gasoline), Benzene, solvent naphtha and other tar oil fractions and the like, not from hydrogenation products of naphthalene, the solvents can be removed by fractional distillation from the purified naphthalene, if appropriate, only separate them after the hydrogenation itself.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE299013C true DE299013C (en) |
Family
ID=553155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT299013D Active DE299013C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE299013C (en) |
-
0
- DE DENDAT299013D patent/DE299013C/de active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE867544C (en) | Process for the purification of liquid chlorides from elements of group 4 of the periodic table | |
DE299013C (en) | ||
DE1770019A1 (en) | Process for the hydrogenation of aromatics | |
DE1594458A1 (en) | Process for the regeneration of used lubricating oils | |
DE1545260C3 (en) | Process for the regeneration of used oils | |
AT105085B (en) | Process for the preparation of alcohols. | |
DE733239C (en) | Process for the production of aromatic hydrocarbons | |
DE747484C (en) | Process for removing organic sulfur compounds from gases | |
DE370974C (en) | Process for the preparation of the hydrogenation products of naphthalene and its derivatives | |
DE1200459B (en) | Process for the refining of heavy hydrocarbons | |
DE466264C (en) | Process for cleaning base-free and phenol-free coal tar oil | |
DE299012C (en) | ||
DE629886C (en) | Process for the production of hydrocarbons completely saturated with hydrogen | |
DE498281C (en) | Process for the preparation of thymol | |
DE564957C (en) | Process for carrying out catalytic hydrogenations | |
DE536794C (en) | Process for refining hydrocarbon mixtures | |
AT83029B (en) | Process for the preparation of hydrogenated naphthalenes. | |
DE700434C (en) | ||
DE164508C (en) | ||
DE488935C (en) | Process for cleaning up cracked gasoline | |
DE885700C (en) | Process for the production of knock-resistant fuels by pressure hydrogenation of high-boiling hydrocarbon oils | |
DE341686C (en) | Process for the production of lubricating oils | |
DE324862C (en) | Process for the purification of technical naphthalene, especially for the preparation of hydrogenated naphthalenes | |
DE714810C (en) | Process for the production of non-resinous motor fuels | |
DE566915C (en) | Process for the production of fatty acids from the oxidation products of hydrocarbons |