GB1255346A - Paraxylene production - Google Patents

Paraxylene production

Info

Publication number
GB1255346A
GB1255346A GB45972/69A GB4597269A GB1255346A GB 1255346 A GB1255346 A GB 1255346A GB 45972/69 A GB45972/69 A GB 45972/69A GB 4597269 A GB4597269 A GB 4597269A GB 1255346 A GB1255346 A GB 1255346A
Authority
GB
United Kingdom
Prior art keywords
xylene
light hydrocarbon
crystals
crystallizer
paraxylene production
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
GB45972/69A
Inventor
John Coleby
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.)
GRAESSER Ltd R
Original Assignee
GRAESSER Ltd R
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 GRAESSER Ltd R filed Critical GRAESSER Ltd R
Priority to GB45972/69A priority Critical patent/GB1255346A/en
Publication of GB1255346A publication Critical patent/GB1255346A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0004—Crystallisation cooling by heat exchange
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0036—Crystallisation on to a bed of product crystals; Seeding
    • 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)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal 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

1,255,346. Crystallizing p-xylene. R. GRAESSER Ltd. 9 July, 1970 [18 Sept., 1969], No. 45972/69. Heading C5E. p-Xylene is obtained by treating crude xylene feed in a vacuum crystallizer at or below - 70‹ C. in the presence of a light hydrocarbon, passing the resulting mixture of crystals and mother liquor through a liquid-solid contactor in counterflow to the light hydrocarbon, the light hydrocarbon then being fed to the crystallizer and the p-xylene crystals being withdrawn. Suitable light hydrocarbons are propane, propylene and pentane.
GB45972/69A 1969-09-18 1969-09-18 Paraxylene production Expired GB1255346A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB45972/69A GB1255346A (en) 1969-09-18 1969-09-18 Paraxylene production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB45972/69A GB1255346A (en) 1969-09-18 1969-09-18 Paraxylene production

Publications (1)

Publication Number Publication Date
GB1255346A true GB1255346A (en) 1971-12-01

Family

ID=10439308

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45972/69A Expired GB1255346A (en) 1969-09-18 1969-09-18 Paraxylene production

Country Status (1)

Country Link
GB (1) GB1255346A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997032644A1 (en) * 1996-03-10 1997-09-12 Reuter Chemische Apparatebau Separation process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997032644A1 (en) * 1996-03-10 1997-09-12 Reuter Chemische Apparatebau Separation process
US6383233B1 (en) 1996-03-10 2002-05-07 Reuter Chemicscher Apparatebau Kg Separation process

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