FR2669947B1 - PROCESS FOR THE DISSOLUTION OF CELLULOSE. - Google Patents

PROCESS FOR THE DISSOLUTION OF CELLULOSE.

Info

Publication number
FR2669947B1
FR2669947B1 FR9114898A FR9114898A FR2669947B1 FR 2669947 B1 FR2669947 B1 FR 2669947B1 FR 9114898 A FR9114898 A FR 9114898A FR 9114898 A FR9114898 A FR 9114898A FR 2669947 B1 FR2669947 B1 FR 2669947B1
Authority
FR
France
Prior art keywords
dissolution
cellulose
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 - Fee Related
Application number
FR9114898A
Other languages
French (fr)
Other versions
FR2669947A1 (en
Inventor
Hans-Georg Guttenberger
Wolfgang Danzer
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Publication of FR2669947A1 publication Critical patent/FR2669947A1/en
Application granted granted Critical
Publication of FR2669947B1 publication Critical patent/FR2669947B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0057—Oxidation of liquors, e.g. in order to reduce the losses of sulfur compounds, followed by evaporation or combustion if the liquor in question is a black liquor
FR9114898A 1990-12-01 1991-12-02 PROCESS FOR THE DISSOLUTION OF CELLULOSE. Expired - Fee Related FR2669947B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19904038420 DE4038420A1 (en) 1990-12-01 1990-12-01 White liquor recovery from black liquor from pulping cellulose - by oxidising unreacted sodium sulphide with gas contg. oxygen before combustion

Publications (2)

Publication Number Publication Date
FR2669947A1 FR2669947A1 (en) 1992-06-05
FR2669947B1 true FR2669947B1 (en) 1995-03-24

Family

ID=6419418

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9114898A Expired - Fee Related FR2669947B1 (en) 1990-12-01 1991-12-02 PROCESS FOR THE DISSOLUTION OF CELLULOSE.

Country Status (4)

Country Link
DE (1) DE4038420A1 (en)
ES (1) ES2036486B1 (en)
FR (1) FR2669947B1 (en)
PT (1) PT99649B (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3549314A (en) * 1968-05-20 1970-12-22 Chemical Construction Corp Oxidation of black liquor
US3709975A (en) * 1970-05-28 1973-01-09 Owens Illinois Inc Method for the oxidation of black liquor
GB1353909A (en) * 1970-08-22 1974-05-22 Chemech Eng Ltd Process for the control of malodorous emissions from kraft pulpmills
US4058433A (en) * 1975-03-06 1977-11-15 Gulf States Paper Corporation Conversion of sulfur in blank liquor to eliminate odorous emissions and facilitate the collection of sulfate soaps
EP0040093A1 (en) * 1980-05-12 1981-11-18 Air Products And Chemicals, Inc. System and process for reducing oxygen consumption in black liquor oxidation
US4857282A (en) * 1988-01-13 1989-08-15 Air Products And Chemicals, Inc. Combustion of black liquor

Also Published As

Publication number Publication date
PT99649A (en) 1992-10-30
DE4038420A1 (en) 1992-06-04
ES2036486A1 (en) 1993-05-16
FR2669947A1 (en) 1992-06-05
ES2036486B1 (en) 1994-04-01
PT99649B (en) 1999-11-30

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse