FR2109342A5 - P-xylene separation from mixed isomers - Google Patents

P-xylene separation from mixed isomers

Info

Publication number
FR2109342A5
FR2109342A5 FR7036964A FR7036964A FR2109342A5 FR 2109342 A5 FR2109342 A5 FR 2109342A5 FR 7036964 A FR7036964 A FR 7036964A FR 7036964 A FR7036964 A FR 7036964A FR 2109342 A5 FR2109342 A5 FR 2109342A5
Authority
FR
France
Prior art keywords
xylene
naphthenes
separated
mixed isomers
xylene separation
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
FR7036964A
Other languages
French (fr)
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.)
Standard Oil Co
Original Assignee
Standard Oil Co
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 Standard Oil Co filed Critical Standard Oil Co
Priority to FR7036964A priority Critical patent/FR2109342A5/en
Application granted granted Critical
Publication of FR2109342A5 publication Critical patent/FR2109342A5/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/02—Monocyclic hydrocarbons
    • C07C15/067—C8H10 hydrocarbons
    • C07C15/08—Xylenes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/04—Purification; Separation; Use of additives by distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (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

p-Xylene is prepd. by passing a supply of C8 aromatic cpds. and H2 into an isomerisation zone held under normal isomerisation conditions and contg. an appropriate hydrogenation-dehydrogenation catalyst to form a mixture approximately equilibrium of xylene and naphthenes. The naphthenes are separated from the xylenes by fractional distillation, and the p-xylene separated from the other xylene by fractional crystallisation. The process can be carried out in a continuous manner.
FR7036964A 1970-10-13 1970-10-13 P-xylene separation from mixed isomers Expired FR2109342A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7036964A FR2109342A5 (en) 1970-10-13 1970-10-13 P-xylene separation from mixed isomers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7036964A FR2109342A5 (en) 1970-10-13 1970-10-13 P-xylene separation from mixed isomers

Publications (1)

Publication Number Publication Date
FR2109342A5 true FR2109342A5 (en) 1972-05-26

Family

ID=9062664

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7036964A Expired FR2109342A5 (en) 1970-10-13 1970-10-13 P-xylene separation from mixed isomers

Country Status (1)

Country Link
FR (1) FR2109342A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3083531A4 (en) * 2013-12-17 2017-08-23 BP Corporation North America Inc. Energy efficient naphthene recycle via the use of a side draw fractionation tower and partial condensation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3083531A4 (en) * 2013-12-17 2017-08-23 BP Corporation North America Inc. Energy efficient naphthene recycle via the use of a side draw fractionation tower and partial condensation
US9902666B2 (en) 2013-12-17 2018-02-27 Bp Corporation North America Inc. Energy efficient naphthene recycle via the use of a side draw fractionation tower and partial condensation
RU2668561C1 (en) * 2013-12-17 2018-10-02 Бипи Корпорейшен Норт Америка Инк. Energy-saving naphthene recycling via use of side-draw fractionation tower and partial condensation

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Legal Events

Date Code Title Description
ST Notification of lapse