EP3994307A4 - Kesselsteinkontrolle in kraftzellstoffwerken mit endgruppenmodifizierten polycarboxylaten - Google Patents

Kesselsteinkontrolle in kraftzellstoffwerken mit endgruppenmodifizierten polycarboxylaten 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Withdrawn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
English (en)
French (fr)
Other versions
EP3994307A1 (de
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/de
Publication of EP3994307A4 publication Critical patent/EP3994307A4/de
Withdrawn legal-status Critical Current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

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Sealing Material Composition (AREA)
EP20834429.1A 2019-07-01 2020-06-30 Kesselsteinkontrolle in kraftzellstoffwerken mit endgruppenmodifizierten polycarboxylaten Withdrawn EP3994307A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962869235P 2019-07-01 2019-07-01
PCT/US2020/040221 WO2021003115A1 (en) 2019-07-01 2020-06-30 Kraft pulp mill scale control with end group modified polycarboxylates

Publications (2)

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

Family

ID=74065640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20834429.1A Withdrawn EP3994307A4 (de) 2019-07-01 2020-06-30 Kesselsteinkontrolle in kraftzellstoffwerken mit endgruppenmodifizierten polycarboxylaten

Country Status (8)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112022002677A2 (pt) * 2019-08-30 2022-05-03 Ecolab Usa Inc Composição, método para reduzir a viscosidade de um licor negro, e, método para inibir a deposição de incrustações.

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 (en) * 1998-08-31 2000-03-09 Nalco Chemical Company Process for the inhibition of scale in harsh systems and novel antiscalants for same
WO2002098803A1 (en) * 2001-06-06 2002-12-12 Solutia Inc. Method for inhibiting calcium salt scale
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 (de) * 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
EP2094768A4 (de) * 2006-12-22 2010-04-14 Kiram Ab Verfahren zur rückgewinnung eines natriumarmen ligninbrennstoffs aus schwarzlauge
KR101701532B1 (ko) * 2009-03-17 2017-02-01 이탈마치 케미칼스 에스피에이 칼슘염 스케일 형성을 방지하기 위한 조성물
JP5955386B2 (ja) * 2012-07-13 2016-07-20 株式会社日本触媒 ポリカルボン酸系共重合体、セメント分散剤、セメント混和剤及びセメント組成物
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 (en) * 1998-08-31 2000-03-09 Nalco Chemical Company Process for the inhibition of scale in harsh systems and novel antiscalants for same
WO2002098803A1 (en) * 2001-06-06 2002-12-12 Solutia Inc. Method for inhibiting calcium salt scale
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
CA3145550A1 (en) 2021-01-07
BR112022000003A2 (pt) 2022-02-15
WO2021003115A1 (en) 2021-01-07
US20210002826A1 (en) 2021-01-07
KR20220034140A (ko) 2022-03-17
CN114096712A (zh) 2022-02-25
EP3994307A1 (de) 2022-05-11
CL2021003583A1 (es) 2022-09-23

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