GB1208364A - Purification process involving two crystallization stages for separating paraxylene from an aromatic hydrocarbon fraction - Google Patents

Purification process involving two crystallization stages for separating paraxylene from an aromatic hydrocarbon fraction

Info

Publication number
GB1208364A
GB1208364A GB09614/68A GB1961468A GB1208364A GB 1208364 A GB1208364 A GB 1208364A GB 09614/68 A GB09614/68 A GB 09614/68A GB 1961468 A GB1961468 A GB 1961468A GB 1208364 A GB1208364 A GB 1208364A
Authority
GB
United Kingdom
Prior art keywords
xylene
para
cake
centrifugation
toluene
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
GB09614/68A
Other languages
English (en)
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.)
Sinclair Research Inc
Original Assignee
Sinclair Research Inc
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 Sinclair Research Inc filed Critical Sinclair Research Inc
Publication of GB1208364A publication Critical patent/GB1208364A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/14—Purification; Separation; Use of additives by crystallisation; Purification or separation of the crystals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural 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)
GB09614/68A 1967-05-22 1968-04-25 Purification process involving two crystallization stages for separating paraxylene from an aromatic hydrocarbon fraction Expired GB1208364A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64041267A 1967-05-22 1967-05-22

Publications (1)

Publication Number Publication Date
GB1208364A true GB1208364A (en) 1970-10-14

Family

ID=24568127

Family Applications (1)

Application Number Title Priority Date Filing Date
GB09614/68A Expired GB1208364A (en) 1967-05-22 1968-04-25 Purification process involving two crystallization stages for separating paraxylene from an aromatic hydrocarbon fraction

Country Status (6)

Country Link
US (1) US3462508A (enExample)
BE (1) BE715336A (enExample)
DE (1) DE1768476A1 (enExample)
FR (1) FR1563503A (enExample)
GB (1) GB1208364A (enExample)
NL (1) NL6807289A (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8624266D0 (en) * 1986-10-09 1986-11-12 Ici Plc Separation process
DE3839229A1 (de) * 1988-11-19 1990-05-23 Krupp Koppers Gmbh Verfahren zur gewinnung von p-xylol mit einer reinheit von mehr als 99,8 gew.-%
FR2728894A1 (fr) * 1994-12-29 1996-07-05 Inst Francais Du Petrole Procede de separation de paraxylene comportant au moins deux etages de cristallisation a haute temperature
US8252967B2 (en) * 2009-04-14 2012-08-28 Exxonmobil Chemical Patents Inc. Process for the purification of paraxylene
CN112679304B (zh) * 2019-10-18 2022-11-04 中国石油化工股份有限公司 一种生产对二甲苯的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA571632A (en) * 1959-03-03 M. Powers John Method for recovering paraxylene
US2795634A (en) * 1953-05-01 1957-06-11 Standard Oil Co Recovery of ortho-and para-xylenes from c8 aromatic mixtures
GB949161A (en) * 1959-04-30 1964-02-12 Maruzen Sekiyu Kabushiki Kaish A process and apparatus for manufacturing high purity p-xylene

Also Published As

Publication number Publication date
BE715336A (enExample) 1968-11-18
DE1768476A1 (de) 1971-11-11
NL6807289A (enExample) 1968-11-25
US3462508A (en) 1969-08-19
FR1563503A (enExample) 1969-04-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee