UY39228A - Métodos de tratamiento de un ciclo de recuperación del proceso kraft para reducir los niveles de metal en el proceso kraft - Google Patents

Métodos de tratamiento de un ciclo de recuperación del proceso kraft para reducir los niveles de metal en el proceso kraft

Info

Publication number
UY39228A
UY39228A UY0001039228A UY39228A UY39228A UY 39228 A UY39228 A UY 39228A UY 0001039228 A UY0001039228 A UY 0001039228A UY 39228 A UY39228 A UY 39228A UY 39228 A UY39228 A UY 39228A
Authority
UY
Uruguay
Prior art keywords
kraft process
treatment methods
metal levels
reduce metal
recovery cycle
Prior art date
Application number
UY0001039228A
Other languages
English (en)
Inventor
Ogushi Romeiro Ramires Heloisa
Silva Pinto De Faria Thiago
Original Assignee
Suzano Sa
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 Suzano Sa filed Critical Suzano Sa
Publication of UY39228A publication Critical patent/UY39228A/es

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
    • D21C11/0035—Introduction of compounds, e.g. sodium sulfate, into the cycle in order to compensate for the losses of pulping agents
    • 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
    • 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
    • D21C11/0085—Introduction of auxiliary substances into the regenerating system in order to improve the performance of certain steps of the latter, the presence of these substances being confined to the regeneration cycle
    • 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
    • D21C11/02—Regeneration of pulp liquors or effluent waste waters of acid, neutral or alkaline sulfite 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
    • D21C11/04—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
    • D21C11/10—Concentrating spent liquor by evaporation
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Paper (AREA)

Abstract

La presente invención se refiere a un método para reducir el contenido de metal en un proceso de pulido Kraft que comprende añadir al menos una forma de magnesio a un licor negro que se devuelve a la operación de pulido Kraft. Además, se proporciona un método para reducir el contenido de aluminio en un proceso de pulpa mediante la adición de al menos una forma de magnesio al licor negro para proporcionar un licor verde que tiene una relación molar de magnesio a aluminio de 0,04-5,0 y un método para producir o tratar un licor verde.
UY0001039228A 2020-05-22 2021-05-24 Métodos de tratamiento de un ciclo de recuperación del proceso kraft para reducir los niveles de metal en el proceso kraft UY39228A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US202063029075P 2020-05-22 2020-05-22

Publications (1)

Publication Number Publication Date
UY39228A true UY39228A (es) 2021-12-31

Family

ID=78708827

Family Applications (1)

Application Number Title Priority Date Filing Date
UY0001039228A UY39228A (es) 2020-05-22 2021-05-24 Métodos de tratamiento de un ciclo de recuperación del proceso kraft para reducir los niveles de metal en el proceso kraft

Country Status (11)

Country Link
US (1) US20230272581A1 (es)
EP (1) EP4153811A4 (es)
JP (1) JP7793545B2 (es)
CN (1) CN115667622A (es)
AR (1) AR122154A1 (es)
AU (1) AU2021274310A1 (es)
BR (1) BR112022023795A2 (es)
CA (1) CA3183647A1 (es)
CL (1) CL2022003258A1 (es)
UY (1) UY39228A (es)
WO (1) WO2021232133A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115652676B (zh) * 2022-11-17 2023-09-26 陕西科技大学 一种将除硅过程前置的绿液除硅工艺

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB381697A (en) * 1931-09-19 1932-10-13 Erik Ludvig Rinman Method of relieving alkaline waste liquors from the soda or sulphate pulp manufacture, of silica
US1997691A (en) * 1932-05-16 1935-04-16 Mathieson Alkali Works Inc Purification of caustic solutions
US2079638A (en) * 1932-06-07 1937-05-11 Solvay Process Co Process for purifying caustic
US2592907A (en) * 1949-03-08 1952-04-15 Infilco Inc Cooking liquor treatment
NL232042A (es) * 1958-01-29
US3451765A (en) * 1964-03-25 1969-06-24 Frederick A Schleindl Method of treating spent pulp liquor by adding gas-evolving metals thereto
US4347102A (en) * 1981-04-02 1982-08-31 Combustion Engineering, Inc. Elimination of potassium compounds from sodium-based pulped cycles
ZA849901B (en) * 1983-12-23 1985-08-28 North Broken Hill Ltd Method of improving the purity of alkali-metal hydroxides
US5082526A (en) * 1989-01-23 1992-01-21 Pulp And Paper Research Institute Of Canada Process of producing kraft pulping liquor by the oxidation of white liquor in the presence of lime mud
FI94445C (fi) * 1992-07-10 1995-09-11 Ahlstroem Oy Menetelmä ja laite mustalipeän käsittelemiseksi
JP3161491B2 (ja) * 1993-07-30 2001-04-25 日鉄鉱業株式会社 アルミニウムを含む苛性ソーダ廃液の処理方法
SE9401663L (sv) * 1994-05-13 1995-06-12 Kvaerner Pulping Tech Förfarande för att fälla magnesium med aluminium vid grönlutsklarning
FI107743B (fi) * 1999-01-12 2001-09-28 Andritz Ahlstrom Oy Menetelmä viherlipeän piipitoisuuden alentamiseksi
SE516037C2 (sv) * 2000-03-24 2001-11-12 Kemira Kemi Ab Rening av blekningsfiltrat före återföring till blekningsförfarandet
SE533477C2 (sv) * 2009-02-11 2010-10-05 Arne Lindahl Förfarande för att minska mängden processtörande ämnen i lignocellulosamaterial
CN103306154A (zh) * 2012-03-15 2013-09-18 秦才东 制浆黑液的处理及利用方法
SE540646C2 (en) * 2016-09-08 2018-10-09 Suncarbon Ab Method and system for treating spent pulping liquor
US11008704B2 (en) * 2017-08-01 2021-05-18 Fuel Tech, Inc. Deposit control for a black liquor recovery boiler

Also Published As

Publication number Publication date
JP7793545B2 (ja) 2026-01-05
AU2021274310A1 (en) 2022-12-22
CN115667622A (zh) 2023-01-31
JP2023537805A (ja) 2023-09-06
BR112022023795A2 (pt) 2022-12-27
EP4153811A4 (en) 2024-06-19
AR122154A1 (es) 2022-08-17
CL2022003258A1 (es) 2023-03-31
US20230272581A1 (en) 2023-08-31
EP4153811A1 (en) 2023-03-29
CA3183647A1 (en) 2021-11-25
WO2021232133A1 (en) 2021-11-25

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