GB147580A - Improvements in or relating to the hydrogenation of naphthalene - Google Patents

Improvements in or relating to the hydrogenation of naphthalene

Info

Publication number
GB147580A
GB147580A GB1951420A GB1951420A GB147580A GB 147580 A GB147580 A GB 147580A GB 1951420 A GB1951420 A GB 1951420A GB 1951420 A GB1951420 A GB 1951420A GB 147580 A GB147580 A GB 147580A
Authority
GB
United Kingdom
Prior art keywords
finely divided
vapours
metal
passed
maintained
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
GB1951420A
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.)
TETRALIN GmbH
Original Assignee
TETRALIN GmbH
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 TETRALIN GmbH filed Critical TETRALIN GmbH
Publication of GB147580A publication Critical patent/GB147580A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C13/00—Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings
    • C07C13/28—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof
    • C07C13/32—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings
    • C07C13/47—Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with condensed rings with a bicyclo ring system containing ten carbon atoms
    • C07C13/48—Completely or partially hydrogenated naphthalenes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Naphthalene to be hydrogenated is preliminarily purified by treatment in the vapour phase with finely divided or readily fusible metals or metal alloys or with such metal compounds in which the metal is loosely bound to a non-acid radicle, or with metal carbides, as in Specifications 147,476 and 147,488; the purifying materials may be mixed with finely divided or porous materials such as fullers' earth. The naphthalene vapours may be passed through several layers of the purifying materials, or through the fused material maintained if desired in a finely divided state as, for example, in a "lixiviating" column; thus the vapours may be passed through a vessel filled with melted sodium and maintained at 150 DEG C., and afterwards condensed and treated with hydrogen under pressure at a temperature above 100 DEG C. in the presence of a nickel catalyst; or the vapours may be passed through a tower containing finely divided nickel or iron mixed if desired with fullers' earth, or through which liquid metals or metal alloys are maintained in circulation by means of a pump. By stopping the hydrogenation at the desired point, tetrahydronaphthalene may be obtained. Specification 147,474 is referred to.ALSO:Napthalene to be hydrogenated is preliminary purified by treatment in the vapour phase with finely divided or readily fusible metals or metal alloys, or with such metal compounds in which the metal is loosely bound to a non-acid radicle, or with metal carbides, as in Specifications 147,476 and 147,488; the purifying materials may be mixed with finely divided or porous materials such as fullers' earth. The naphthalene vapours may be passed through several layers of the purifying materials, or through the fused material maintained if desired in a finely divided state, as for example, in a "lixiviating" column; thus the vapours may be passed through a vessel filled with melted sodium and maintained at 150 DEG C.; or the vapours may be passed through a tower containing finely divided nickel or iron mixed if desired with fullers earth, or through which liquid metals or metal alloys are maintained in circulation by means of a pump. Specification 147,474 is referred to.
GB1951420A 1916-08-01 1920-07-08 Improvements in or relating to the hydrogenation of naphthalene Expired GB147580A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE147580X 1916-08-01

Publications (1)

Publication Number Publication Date
GB147580A true GB147580A (en) 1921-10-10

Family

ID=5672089

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1951420A Expired GB147580A (en) 1916-08-01 1920-07-08 Improvements in or relating to the hydrogenation of naphthalene

Country Status (1)

Country Link
GB (1) GB147580A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102838438A (en) * 2011-06-23 2012-12-26 中国石油化工股份有限公司 Method for producing tetrahydronaphthalene through naphthalene hydrogenation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102838438A (en) * 2011-06-23 2012-12-26 中国石油化工股份有限公司 Method for producing tetrahydronaphthalene through naphthalene hydrogenation
CN102838438B (en) * 2011-06-23 2014-07-23 中国石油化工股份有限公司 Method for producing tetrahydronaphthalene through naphthalene hydrogenation

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