ES2136574A1 - Process for separating the carbon mesophase - Google Patents

Process for separating the carbon mesophase

Info

Publication number
ES2136574A1
ES2136574A1 ES009702704A ES9702704A ES2136574A1 ES 2136574 A1 ES2136574 A1 ES 2136574A1 ES 009702704 A ES009702704 A ES 009702704A ES 9702704 A ES9702704 A ES 9702704A ES 2136574 A1 ES2136574 A1 ES 2136574A1
Authority
ES
Spain
Prior art keywords
separating
phases
mesophase
softening points
carbon mesophase
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
ES009702704A
Other languages
Spanish (es)
Other versions
ES2136574B1 (en
Inventor
Ramirez Ricardo Santamaria
Rodriguez Clara Blanco
Mayoral Jenaro Bermejo
Lopez Rosa Menendez
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.)
Consejo Superior de Investigaciones Cientificas CSIC
Original Assignee
Consejo Superior de Investigaciones Cientificas CSIC
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 Consejo Superior de Investigaciones Cientificas CSIC filed Critical Consejo Superior de Investigaciones Cientificas CSIC
Priority to ES9702704A priority Critical patent/ES2136574B1/en
Priority to PCT/ES1998/000354 priority patent/WO1999033536A2/en
Publication of ES2136574A1 publication Critical patent/ES2136574A1/en
Application granted granted Critical
Publication of ES2136574B1 publication Critical patent/ES2136574B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
    • D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
    • D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
    • D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
    • D01F9/145—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from pitch or distillation residues
    • D01F9/15—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from pitch or distillation residues from coal pitch
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C3/00—Working-up pitch, asphalt, bitumen

Abstract

New process for separating the isotropic and anisotropic (mesophase) phases of tars through hot filtration. The process is based on the differences of the softening points of the two phases and using an intermediary temperature between the two softening points. Thereby, a system is configured which has the behaviour of a solid suspended in a viscous liquid, enabling the separation of the two phases by simple filtration. Applications: fabrication of carbon fibers.
ES9702704A 1997-12-26 1997-12-26 A NEW METHOD FOR THE SEPARATION OF CARBON MESOPHASE. Expired - Fee Related ES2136574B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES9702704A ES2136574B1 (en) 1997-12-26 1997-12-26 A NEW METHOD FOR THE SEPARATION OF CARBON MESOPHASE.
PCT/ES1998/000354 WO1999033536A2 (en) 1997-12-26 1998-12-23 Process for separating the carbon mesophase

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9702704A ES2136574B1 (en) 1997-12-26 1997-12-26 A NEW METHOD FOR THE SEPARATION OF CARBON MESOPHASE.

Publications (2)

Publication Number Publication Date
ES2136574A1 true ES2136574A1 (en) 1999-11-16
ES2136574B1 ES2136574B1 (en) 2000-07-01

Family

ID=8301641

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9702704A Expired - Fee Related ES2136574B1 (en) 1997-12-26 1997-12-26 A NEW METHOD FOR THE SEPARATION OF CARBON MESOPHASE.

Country Status (2)

Country Link
ES (1) ES2136574B1 (en)
WO (1) WO1999033536A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110303004A (en) * 2019-08-08 2019-10-08 鞍钢股份有限公司 A kind of device and method for cleaning carbon microspheres

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243512A (en) * 1978-06-28 1981-01-06 Kureha Kagaku Kogyo Kabushiki Kaisha Process for preparation of pitch for producing carbon fiber
US4333816A (en) * 1980-02-22 1982-06-08 Bergwerksverband Gmbh Method for the production of needle coke
JPH01210494A (en) * 1988-02-18 1989-08-24 Idemitsu Kosan Co Ltd Method of purifying mesophase pitch
JPH0275695A (en) * 1988-09-10 1990-03-15 Teijin Seiki Co Ltd Manufacture of pitch suitable for carbon fiber
US5032250A (en) * 1988-12-22 1991-07-16 Conoco Inc. Process for isolating mesophase pitch

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4243512A (en) * 1978-06-28 1981-01-06 Kureha Kagaku Kogyo Kabushiki Kaisha Process for preparation of pitch for producing carbon fiber
US4333816A (en) * 1980-02-22 1982-06-08 Bergwerksverband Gmbh Method for the production of needle coke
JPH01210494A (en) * 1988-02-18 1989-08-24 Idemitsu Kosan Co Ltd Method of purifying mesophase pitch
JPH0275695A (en) * 1988-09-10 1990-03-15 Teijin Seiki Co Ltd Manufacture of pitch suitable for carbon fiber
US5032250A (en) * 1988-12-22 1991-07-16 Conoco Inc. Process for isolating mesophase pitch

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BASE DE DATOS JAPIO en QUESTEL, Londres: Derwent Publications Ltd. & JP 1210494 A (IDEMITSU KOSAN CO LTD.) 24.08.1989 *
BASE DE DATOS JAPIO en QUESTEL, Londres: Derwent Publications Ltd. & JP 2075695 A (TEIJIN SEIKI CO LTD.) 15.03.1990 *

Also Published As

Publication number Publication date
WO1999033536A3 (en) 1999-09-02
ES2136574B1 (en) 2000-07-01
WO1999033536A2 (en) 1999-07-08

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