ES8705941A1 - Un metodo y su correspondiente sistema para la recuperacion de productos quimicos de licores de sulfato. - Google Patents

Un metodo y su correspondiente sistema para la recuperacion de productos quimicos de licores de sulfato.

Info

Publication number
ES8705941A1
ES8705941A1 ES551239A ES551239A ES8705941A1 ES 8705941 A1 ES8705941 A1 ES 8705941A1 ES 551239 A ES551239 A ES 551239A ES 551239 A ES551239 A ES 551239A ES 8705941 A1 ES8705941 A1 ES 8705941A1
Authority
ES
Spain
Prior art keywords
recovering chemicals
full
spent
spent pulp
liquors
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
Application number
ES551239A
Other languages
English (en)
Other versions
ES551239A0 (es
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.)
SKF Steel Engineering AB
Original Assignee
SKF Steel Engineering AB
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20359633&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES8705941(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SKF Steel Engineering AB filed Critical SKF Steel Engineering AB
Publication of ES8705941A1 publication Critical patent/ES8705941A1/es
Publication of ES551239A0 publication Critical patent/ES551239A0/es
Expired 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
    • D21C11/12—Combustion of pulp liquors
    • D21C11/125—Decomposition of the pulp liquors in reducing atmosphere or in the absence of oxidants, i.e. gasification or pyrolysis
    • 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
    • D21C11/10—Concentrating spent liquor by evaporation
    • D21C11/103—Evaporation by direct contact with gases, e.g. hot flue gases
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S423/00—Chemistry of inorganic compounds
    • Y10S423/03—Papermaking liquor

Landscapes

  • Paper (AREA)

Abstract

METODO Y SISTEMA PARA RECUPERAR PRODUCTOS QUIMICOS. CONSISTE EN SUMINISTRAR LICOR DE SULFATO AGOTADO TOTAL O PARCIALMENTE A UN VAPORIZADOR DE LICOR, MIENTRAS QUE SE SUMINISTRA SIMULTANEAMENTE ENERGIA EXTERNA INDEPENDIENTEMENTE DE LA COMBUSTION. EL SISTEMA CONSISTE EN UNA CALDERA DE RECUPERACION DE SOSA (1) CON TOBERAS DE AIRE PRIMARIO (9), UN CONDUCTO (10), OTRO CONDUCTO (11), UN VAPORIZADOR DE LICOR (8) QUE COMPRENDE UNA CAMARA DE REACCION A LA QUE SE DIRIGEN LANZAS (13, 14, 15), Y GENERADORES DE PLASMA (16, 17) PARA SUMINISTRAR ENERGIA. TIENE APLICACION EN LA INDUSTRIA DE RECUPERACION DE PULPAS.-
ES551239A 1985-03-26 1986-01-24 Un metodo y su correspondiente sistema para la recuperacion de productos quimicos de licores de sulfato. Expired ES8705941A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8501465A SE447400B (sv) 1985-03-26 1985-03-26 Sett och anordning for kemikalieatervinning av massaavlutar i konventionell sodapanna

Publications (2)

Publication Number Publication Date
ES8705941A1 true ES8705941A1 (es) 1987-05-16
ES551239A0 ES551239A0 (es) 1987-05-16

Family

ID=20359633

Family Applications (1)

Application Number Title Priority Date Filing Date
ES551239A Expired ES8705941A1 (es) 1985-03-26 1986-01-24 Un metodo y su correspondiente sistema para la recuperacion de productos quimicos de licores de sulfato.

Country Status (8)

Country Link
US (1) US4710269A (es)
CA (1) CA1275761C (es)
ES (1) ES8705941A1 (es)
FI (1) FI77277C (es)
FR (1) FR2579639B1 (es)
NZ (1) NZ214981A (es)
PT (1) PT81977B (es)
SE (1) SE447400B (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5405496A (en) * 1989-11-23 1995-04-11 Chemrec Ab Process for the preparation of cooking liquors having high sulphidity for sulphate pulp cooking
SE465039B (sv) * 1989-11-23 1991-07-15 Chemrec Ab Saett att framstaella koklutar med hoeg sulfiditet foer sulfatmassakokning
FI102395B1 (fi) * 1991-11-26 1998-11-30 Ahlstrom Machinery Oy Menetelmä energian talteenottamiseksi selluprosessien jäteliemistä
FI934028A (fi) * 1993-09-14 1995-03-15 Valtion Teknillinen Jatkuvatoiminen menetelmä ja laite seeluloosavalmistuksen prosessijätteiden sisältämän energian hyödyntämiseksi
US7494637B2 (en) 2000-05-16 2009-02-24 Massachusetts Institute Of Technology Thermal conversion of biomass to valuable fuels, chemical feedstocks and chemicals

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074965B (de) * 1956-05-24 1960-02-04 Esso Research And Engineering Company, Elizabeth, N. J. (V. St. A.) Verfahren zum Trocknen von Zellstoffablaugen
FR1443423A (fr) * 1964-05-22 1966-06-24 Submerged Comb Procédé et appareil de chauffage, d'évaporation et de concentration
US3666619A (en) * 1969-04-08 1972-05-30 Calcasieu Paper Co Inc Kraft pulp and paper recovery process
US3674630A (en) * 1969-11-14 1972-07-04 Copeland Systems Inc Kraft liquor recovery system including physically isolated oxidation and reduction stages
SE378119B (es) * 1972-04-04 1975-08-18 Angpanneforeningen
DE2506971C2 (de) * 1975-02-19 1982-04-08 Metallgesellschaft Ag, 6000 Frankfurt Verfahren zur Konzentrierung hochviskoser Zellstoffablaugen
US4011129A (en) * 1975-04-11 1977-03-08 Domtar Limited Pulp mill recovery system
US4135968A (en) * 1976-04-09 1979-01-23 Weyerhaeuser Company Spent liquor treatment
US4439272A (en) * 1982-01-13 1984-03-27 Nguyen Xuan T Pulp mill residual liquor recovery process
SE448007B (sv) * 1983-04-21 1987-01-12 Skf Steel Eng Ab Forfarande och anordning for atervinning av kemikalier ur massaavlut

Also Published As

Publication number Publication date
FI77277C (fi) 1989-02-10
PT81977A (en) 1986-03-01
US4710269A (en) 1987-12-01
SE8501465D0 (sv) 1985-03-26
SE8501465L (sv) 1986-09-27
CA1275761C (en) 1990-11-06
FI860279A (fi) 1986-09-27
SE447400B (sv) 1986-11-10
FR2579639B1 (fr) 1994-07-22
FI77277B (fi) 1988-10-31
ES551239A0 (es) 1987-05-16
PT81977B (pt) 1993-01-29
NZ214981A (en) 1988-02-29
FI860279A0 (fi) 1986-01-21
FR2579639A1 (fr) 1986-10-03

Similar Documents

Publication Publication Date Title
US4692209A (en) Recovery of chemicals from pulp waste liquor
GB2215350B (en) Process for bleaching mechanical wood pulp
ES8705941A1 (es) Un metodo y su correspondiente sistema para la recuperacion de productos quimicos de licores de sulfato.
DE3363132D1 (en) Process for the continuous removal of silicic acid from waste liquors deriving from cellulose pulp production
PT79434A (en) Process to obtain lignine by precipitation of alcaline solutions containing lignine
CA2146561A1 (en) Method and apparatus for recovering heat in a spent liquor recovery boiler
CA1264506A (en) Method of recovering chemicals from spent pulp liquors
US2752243A (en) Ammonia-sulfur dioxide cooking acid regeneration
ES2097489T5 (es) Un metodo de preparacion de lejia de digestion.
SE9300199D0 (sv) Metod vid aatervinning av cellulosaavlutar
RU95113719A (ru) Способ получения перекиси водорода путем газификации отработанных щелоков целлюлозы
ES8802081A1 (es) Procedimiento para la reduccion a pulpa de un material lignocelulosico
US4288286A (en) Kraft mill recycle process
ZA913731B (en) Process for the partial combustion of cellulose spent liquor ii
SE9403786D0 (sv) Förfarande för utvinning av kemikalier och energi från cellulosaavlut
CA1324865C (en) Method for recovering chemicals from spent pulp liquors
US4153502A (en) Process for the production of polysulphide pulping liquor from pulp mill recovery smelt
US3006804A (en) Manufacture of cellulosic products
RU94033349A (ru) Способ приготовления варочного щелока
Lang et al. Changes in Alumina Production and the Energy Supply
SE9403780L (sv) Återvinning av blekerifiltrat genom att filtratet används i ett gaskylsystem i en förgasningsanläggning

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000403