CA2026488A1 - Process for isolating mesophase pitch - Google Patents

Process for isolating mesophase pitch

Info

Publication number
CA2026488A1
CA2026488A1 CA 2026488 CA2026488A CA2026488A1 CA 2026488 A1 CA2026488 A1 CA 2026488A1 CA 2026488 CA2026488 CA 2026488 CA 2026488 A CA2026488 A CA 2026488A CA 2026488 A1 CA2026488 A1 CA 2026488A1
Authority
CA
Canada
Prior art keywords
mesogens
phase
mesophase pitch
solvent
isotropic pitch
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.)
Granted
Application number
CA 2026488
Other languages
French (fr)
Other versions
CA2026488C (en
Inventor
Hugh E. Romine
James R. Mcconaghy, Jr.
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.)
ConocoPhillips Co
Original Assignee
Conoco 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 Conoco Inc filed Critical Conoco Inc
Priority to CA 2026488 priority Critical patent/CA2026488C/en
Publication of CA2026488A1 publication Critical patent/CA2026488A1/en
Application granted granted Critical
Publication of CA2026488C publication Critical patent/CA2026488C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Working-Up Tar And Pitch (AREA)

Abstract

Isotropic pitch containing mesogens is combined with a solvent and subjected to dense phase or supercritical conditions and the mesogens ere phase separated. In one aspect the isotropic pitch containing mesogens is fluxed with a solvent to solubilize the mesogens, the flux mixture is filtered to remove nonsolubles and the mesogens are phase separated by use of the same solvent under dense phase or supercritical conditions of temperature and pressure. The phase separation conditions are such that the mesogens are recovered as mesophase.
CA 2026488 1990-09-28 1990-09-28 Process for isolating mesophase pitch Expired - Fee Related CA2026488C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2026488 CA2026488C (en) 1990-09-28 1990-09-28 Process for isolating mesophase pitch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2026488 CA2026488C (en) 1990-09-28 1990-09-28 Process for isolating mesophase pitch

Publications (2)

Publication Number Publication Date
CA2026488A1 true CA2026488A1 (en) 1992-03-29
CA2026488C CA2026488C (en) 2001-05-15

Family

ID=4146067

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2026488 Expired - Fee Related CA2026488C (en) 1990-09-28 1990-09-28 Process for isolating mesophase pitch

Country Status (1)

Country Link
CA (1) CA2026488C (en)

Also Published As

Publication number Publication date
CA2026488C (en) 2001-05-15

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Legal Events

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