EP3994307A4 - Régulation des battitures de pâte kraft avec des polycarboxylates modifiés par des groupes terminaux - Google Patents

Régulation des battitures de pâte kraft avec des polycarboxylates modifiés par des groupes terminaux Download PDF

Info

Publication number
EP3994307A4
EP3994307A4 EP20834429.1A EP20834429A EP3994307A4 EP 3994307 A4 EP3994307 A4 EP 3994307A4 EP 20834429 A EP20834429 A EP 20834429A EP 3994307 A4 EP3994307 A4 EP 3994307A4
Authority
EP
European Patent Office
Prior art keywords
end group
kraft pulp
scale control
pulp mill
group modified
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.)
Withdrawn
Application number
EP20834429.1A
Other languages
German (de)
English (en)
Other versions
EP3994307A1 (fr
Inventor
Daniel Joseph Nicholson
Kirill N. Bakeev
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.)
Solenis Technologies Cayman LP
Original Assignee
Solenis Technologies Cayman LP
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 Solenis Technologies Cayman LP filed Critical Solenis Technologies Cayman LP
Publication of EP3994307A1 publication Critical patent/EP3994307A1/fr
Publication of EP3994307A4 publication Critical patent/EP3994307A4/fr
Withdrawn legal-status Critical Current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
    • D21C11/0085—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
    • D21C11/0092—Substances modifying the evaporation, combustion, or thermal decomposition processes of black liquor
    • 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
    • D21C11/106—Prevention of incrustations on heating surfaces during the concentration, e.g. by elimination of the scale-forming substances contained in the liquors
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/008—Prevention of corrosion or formation of deposits on pulp-treating equipment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Sealing Material Composition (AREA)
EP20834429.1A 2019-07-01 2020-06-30 Régulation des battitures de pâte kraft avec des polycarboxylates modifiés par des groupes terminaux Withdrawn EP3994307A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962869235P 2019-07-01 2019-07-01
PCT/US2020/040221 WO2021003115A1 (fr) 2019-07-01 2020-06-30 Régulation des battitures de pâte kraft avec des polycarboxylates modifiés par des groupes terminaux

Publications (2)

Publication Number Publication Date
EP3994307A1 EP3994307A1 (fr) 2022-05-11
EP3994307A4 true EP3994307A4 (fr) 2023-07-26

Family

ID=74065640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20834429.1A Withdrawn EP3994307A4 (fr) 2019-07-01 2020-06-30 Régulation des battitures de pâte kraft avec des polycarboxylates modifiés par des groupes terminaux

Country Status (8)

Country Link
US (1) US20210002826A1 (fr)
EP (1) EP3994307A4 (fr)
KR (1) KR20220034140A (fr)
CN (1) CN114096712A (fr)
BR (1) BR112022000003A2 (fr)
CA (1) CA3145550A1 (fr)
CL (1) CL2021003583A1 (fr)
WO (1) WO2021003115A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021040952A1 (fr) * 2019-08-30 2021-03-04 Ecolab Usa Inc. Agent de réduction de la viscosité d'une liqueur noire et agent anti-tartre

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404063A (en) * 1964-12-28 1968-10-01 Owens Illinois Inc By-product recovery from kraft black liquor
US3516910A (en) * 1967-05-12 1970-06-23 Grace W R & Co Removing and inhibiting scale in black liquor evaporators
WO2000012436A1 (fr) * 1998-08-31 2000-03-09 Nalco Chemical Company Procede d'inhibition d'incrustations dans des systemes a conditions severes et anti-incrustation associes
WO2002098803A1 (fr) * 2001-06-06 2002-12-12 Solutia Inc. Methode pouvant inhiber l'entartrage par le sel de calcium
US20080277083A1 (en) * 2007-05-10 2008-11-13 Shevchenko Sergey M Method of monitoring and inhibiting scale deposition in pulp mill evaporators and concentrators
JP2012031326A (ja) * 2010-08-02 2012-02-16 Nippon Shokubai Co Ltd アクリル酸系共重合体およびその製造方法
CN109879627A (zh) * 2019-02-15 2019-06-14 陕西瑞星建材科技有限公司 聚羧酸减水剂及其制备工艺

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425469A (en) * 1980-09-08 1984-01-10 Rohm And Haas Company Polyacrylamide flow modifier-adsorber
IN161206B (fr) * 1983-06-28 1987-10-17 Goodrich Co B F
US5254286A (en) * 1991-05-31 1993-10-19 Calgon Corporation Composition for controlling scale in black liquor evaporators
US5401807A (en) * 1992-10-08 1995-03-28 Rohm And Haas Company Process of increasing the molecular weight of water soluble acrylate polymers by chain combination
US8252141B2 (en) * 2006-12-22 2012-08-28 Andritz Oy Method for recovering a low sodium content lignin fuel from black liquor
ES2432860T3 (es) * 2009-03-17 2013-12-05 Dequest Ag Composición para inhibir la formación de incrustaciones de sales de calcio
US9212094B2 (en) * 2012-07-13 2015-12-15 Nippon Shokubai Co., Ltd Polycarboxylic copolymer, cement dispersion agent, cement admixture, and cement composition
JP2014147911A (ja) * 2013-02-04 2014-08-21 Hakuto Co Ltd スケール防止剤及びスケール防止方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404063A (en) * 1964-12-28 1968-10-01 Owens Illinois Inc By-product recovery from kraft black liquor
US3516910A (en) * 1967-05-12 1970-06-23 Grace W R & Co Removing and inhibiting scale in black liquor evaporators
WO2000012436A1 (fr) * 1998-08-31 2000-03-09 Nalco Chemical Company Procede d'inhibition d'incrustations dans des systemes a conditions severes et anti-incrustation associes
WO2002098803A1 (fr) * 2001-06-06 2002-12-12 Solutia Inc. Methode pouvant inhiber l'entartrage par le sel de calcium
US20080277083A1 (en) * 2007-05-10 2008-11-13 Shevchenko Sergey M Method of monitoring and inhibiting scale deposition in pulp mill evaporators and concentrators
JP2012031326A (ja) * 2010-08-02 2012-02-16 Nippon Shokubai Co Ltd アクリル酸系共重合体およびその製造方法
CN109879627A (zh) * 2019-02-15 2019-06-14 陕西瑞星建材科技有限公司 聚羧酸减水剂及其制备工艺

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021003115A1 *

Also Published As

Publication number Publication date
CN114096712A (zh) 2022-02-25
US20210002826A1 (en) 2021-01-07
CA3145550A1 (fr) 2021-01-07
CL2021003583A1 (es) 2022-09-23
WO2021003115A1 (fr) 2021-01-07
EP3994307A1 (fr) 2022-05-11
BR112022000003A2 (pt) 2022-02-15
KR20220034140A (ko) 2022-03-17

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