FR2261976A1 - Reactivation of carbon used for purification of aq. effluents - by two-step thermal treatment in fluidised state and quenching with water - Google Patents

Reactivation of carbon used for purification of aq. effluents - by two-step thermal treatment in fluidised state and quenching with water

Info

Publication number
FR2261976A1
FR2261976A1 FR7406711A FR7406711A FR2261976A1 FR 2261976 A1 FR2261976 A1 FR 2261976A1 FR 7406711 A FR7406711 A FR 7406711A FR 7406711 A FR7406711 A FR 7406711A FR 2261976 A1 FR2261976 A1 FR 2261976A1
Authority
FR
France
Prior art keywords
reactivation
effluents
purification
water
quenching
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
FR7406711A
Other languages
French (fr)
Other versions
FR2261976B1 (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.)
Kureha Corp
Original Assignee
Kureha Corp
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 Kureha Corp filed Critical Kureha Corp
Priority to FR7406711A priority Critical patent/FR2261976A1/en
Publication of FR2261976A1 publication Critical patent/FR2261976A1/en
Application granted granted Critical
Publication of FR2261976B1 publication Critical patent/FR2261976B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/30—Active carbon
    • C01B32/354—After-treatment
    • C01B32/36—Reactivation or regeneration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Reactivation of spherical 0.1-1.0 mm or flaky, active carbon produced from pitch (softening point 50-350 degrees C, carbon content 80-97%; H:C = 0.3-2.5; substances insoluble in nitrobenzene 60%) is carried out by the fluidised bed method, first in a drying and evaporation zone, and then in a reactivation zone. The reactivated carbon is immediately chilled with water. This method is esp. suitable for reactivation of carbon used for purification of aq. effluents, because there is no pulverisation, and, hence, reduction of the bulk volume. Effective cooling after the reactivation is provided.
FR7406711A 1974-02-27 1974-02-27 Reactivation of carbon used for purification of aq. effluents - by two-step thermal treatment in fluidised state and quenching with water Granted FR2261976A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7406711A FR2261976A1 (en) 1974-02-27 1974-02-27 Reactivation of carbon used for purification of aq. effluents - by two-step thermal treatment in fluidised state and quenching with water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7406711A FR2261976A1 (en) 1974-02-27 1974-02-27 Reactivation of carbon used for purification of aq. effluents - by two-step thermal treatment in fluidised state and quenching with water

Publications (2)

Publication Number Publication Date
FR2261976A1 true FR2261976A1 (en) 1975-09-19
FR2261976B1 FR2261976B1 (en) 1977-09-23

Family

ID=9135531

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7406711A Granted FR2261976A1 (en) 1974-02-27 1974-02-27 Reactivation of carbon used for purification of aq. effluents - by two-step thermal treatment in fluidised state and quenching with water

Country Status (1)

Country Link
FR (1) FR2261976A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0076457A2 (en) * 1981-10-01 1983-04-13 Bergwerksverband GmbH Process and apparatus for the regeneration of moist, powdery adsorbents

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0076457A2 (en) * 1981-10-01 1983-04-13 Bergwerksverband GmbH Process and apparatus for the regeneration of moist, powdery adsorbents
EP0076457A3 (en) * 1981-10-01 1984-01-11 Bergwerksverband Gmbh Process and apparatus for the regeneration of moist, powdery adsorbents

Also Published As

Publication number Publication date
FR2261976B1 (en) 1977-09-23

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Legal Events

Date Code Title Description
ST Notification of lapse