ES2036486B1 - PROCEDURE FOR CELLULOSE DISGREGATION. - Google Patents

PROCEDURE FOR CELLULOSE DISGREGATION.

Info

Publication number
ES2036486B1
ES2036486B1 ES9102581A ES9102581A ES2036486B1 ES 2036486 B1 ES2036486 B1 ES 2036486B1 ES 9102581 A ES9102581 A ES 9102581A ES 9102581 A ES9102581 A ES 9102581A ES 2036486 B1 ES2036486 B1 ES 2036486B1
Authority
ES
Spain
Prior art keywords
disgregation
cellulose
procedure
nasi2
sosa
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 - Lifetime
Application number
ES9102581A
Other languages
Spanish (es)
Other versions
ES2036486A1 (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 ES2036486A1 publication Critical patent/ES2036486A1/en
Application granted granted Critical
Publication of ES2036486B1 publication Critical patent/ES2036486B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Landscapes

  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

PROCEDIMIENTO PARA LA DISGREGACION DE CELULOSA. EL INVENTO SE REFIERE A UN PROCEDIMIENTO PARA LA DISGREGACION DE CELULOSA MEDIANTE SOSA BLANCA, QUE ESENCIALMENTE CONSISTE EN NASI2 SCS Y NAOH, PRODUCIENDOSE SOSA NEGRA QUE CONTIENE LIGNINA Y NASI2 SCS SIN REACCIONAR, A PARTIR DE LA CUAL SE RECUPERA SOSA BLANCA MEDIANTE COMBUSTION. PARA EVITAR EN ESTE PROCESO LA EMISION DE COMPUESTOS VOLATILES DE AZUFRE, SE PROPONE INTRODUCIR EN LA SOSA NEGRA OXIGENO PURO O UN GAS CON CONTENIDO EN OXIGENO, A TRAVES DE LAS TOBERAS 18 Y 19 ANTES DE LA COMBUSTION.PROCEDURE FOR CELLULOSE DISGREGATION. THE INVENTION IS RELATED TO A PROCEDURE FOR THE DISGREGATION OF CELLULOSE THROUGH WHITE SOSA, WHICH ESSENTIALLY CONSISTS OF NASI2 SCS AND NAOH, PRODUCING BLACK SOSA CONTAINING LIGNINE AND NASI2 SCS WITHOUT REACTION. TO PREVENT THE EMISSION OF VOLATILE SULFUR COMPOUNDS IN THIS PROCESS, IT IS INTENDED TO INTRODUCE PURE OXYGEN OR A GAS WITH CONTENT IN OXYGEN, THROUGH NOZZLES 18 AND 19 PRIOR TO COMBUSTION.

ES9102581A 1990-12-01 1991-11-20 PROCEDURE FOR CELLULOSE DISGREGATION. Expired - Lifetime ES2036486B1 (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
ES2036486A1 ES2036486A1 (en) 1993-05-16
ES2036486B1 true ES2036486B1 (en) 1994-04-01

Family

ID=6419418

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9102581A Expired - Lifetime ES2036486B1 (en) 1990-12-01 1991-11-20 PROCEDURE FOR CELLULOSE DISGREGATION.

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
PT99649B (en) 1999-11-30
FR2669947A1 (en) 1992-06-05
ES2036486A1 (en) 1993-05-16
DE4038420A1 (en) 1992-06-04
PT99649A (en) 1992-10-30
FR2669947B1 (en) 1995-03-24

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