DE69206684T2 - Kontrolle von Ablagerungen in Anlagen zur Eindampfung von Schwarzlaugen - Google Patents

Kontrolle von Ablagerungen in Anlagen zur Eindampfung von Schwarzlaugen

Info

Publication number
DE69206684T2
DE69206684T2 DE69206684T DE69206684T DE69206684T2 DE 69206684 T2 DE69206684 T2 DE 69206684T2 DE 69206684 T DE69206684 T DE 69206684T DE 69206684 T DE69206684 T DE 69206684T DE 69206684 T2 DE69206684 T2 DE 69206684T2
Authority
DE
Germany
Prior art keywords
poly
acid
optionally copolymerized
polyvinyl
acrylamide
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 - Fee Related
Application number
DE69206684T
Other languages
English (en)
Other versions
DE69206684D1 (de
Inventor
Jasbir S Gill
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.)
Calgon Corp
Original Assignee
Calgon Corp
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 Calgon Corp filed Critical Calgon Corp
Application granted granted Critical
Publication of DE69206684D1 publication Critical patent/DE69206684D1/de
Publication of DE69206684T2 publication Critical patent/DE69206684T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • D21C11/10—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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
    • 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
    • D21C3/22—Other features of pulping processes
    • D21C3/226—Use of compounds avoiding scale formation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • Paper (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Soy Sauces And Products Related Thereto (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
DE69206684T 1991-05-31 1992-05-29 Kontrolle von Ablagerungen in Anlagen zur Eindampfung von Schwarzlaugen Expired - Fee Related DE69206684T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70852291A 1991-05-31 1991-05-31
US70852891A 1991-05-31 1991-05-31

Publications (2)

Publication Number Publication Date
DE69206684D1 DE69206684D1 (de) 1996-01-25
DE69206684T2 true DE69206684T2 (de) 1996-05-09

Family

ID=27108102

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69206684T Expired - Fee Related DE69206684T2 (de) 1991-05-31 1992-05-29 Kontrolle von Ablagerungen in Anlagen zur Eindampfung von Schwarzlaugen

Country Status (8)

Country Link
EP (1) EP0517453B1 (de)
JP (1) JPH084800B2 (de)
AT (1) ATE131554T1 (de)
AU (1) AU656970B2 (de)
CA (1) CA2070078A1 (de)
DE (1) DE69206684T2 (de)
ES (1) ES2082370T3 (de)
NZ (1) NZ242970A (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2059256A1 (en) * 1992-01-13 1993-07-14 David Arthur Aston Pitch control
DE19529052C1 (de) * 1995-07-31 1996-10-02 Grace W R & Co Verfahren und Mittel zur Inhibierung von Ablagerungen in Eindampfern zur Konzentrierung von Schwarzlauge
IT237115Y1 (it) * 1995-08-22 2000-08-31 O M B G S R L Struttura di miscelatore automatico di acqua calda e fredda a comandotermostatico
US6440327B1 (en) 2001-01-31 2002-08-27 Ondeo Nalco Company Polymers and use thereof as scale inhibitors
ATE421658T1 (de) * 2001-03-23 2009-02-15 Arkema France Mehrschichtiges kunststoffrohr zum fördern von flüssigkeiten
SE0200937L (sv) * 2002-03-25 2002-12-23 Kvaerner Pulping Tech Förfarande för modifiering av cellulosafibrer i samband med kokning
US7985318B2 (en) 2007-05-10 2011-07-26 Nalco Company Method of monitoring and inhibiting scale deposition in pulp mill evaporators and concentrators
EP2592185A1 (de) * 2008-01-16 2013-05-15 Bim Kemi Ab Silikazusammensetzung
CN102241441B (zh) * 2010-05-14 2015-12-02 纳尔科公司 包含aa-amps共聚物和pma的组合物及其用途
RU2445273C1 (ru) * 2010-07-08 2012-03-20 Государственное образовательное учреждение высшего профессионального образования "Российский химико-технологический университет им. Д.И. Менделеева" (РХТУ им. Д.И. Менделеева) Способ очистки сточных вод от ионов цветных металлов
JP5242834B1 (ja) * 2012-05-23 2013-07-24 伯東株式会社 クラフト蒸解法及びパルプ収率向上剤
CN104176804A (zh) * 2014-09-09 2014-12-03 江西师范大学 基于阴阳离子絮凝剂协同作用的印染废水处理方法
JP6365639B2 (ja) * 2016-11-25 2018-08-01 栗田工業株式会社 ナトリウム塩スケール防止剤、ナトリウム塩スケール防止方法、水系の粘度低減剤、水系の管理方法及び水系の粘度低減方法
CN107459077A (zh) * 2017-09-29 2017-12-12 盐城工学院 一种净水剂及其制备方法
CN110563167B (zh) * 2019-09-18 2022-04-22 苏州永峰联环保科技有限公司 一种阻垢剂及其制备方法
CN113955865B (zh) * 2021-10-22 2022-06-21 南京大学 一种绿色高效抑制二氧化硅成垢的羟乙基纤维素改性阻垢剂及其制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1575173A (en) * 1977-02-07 1980-09-17 American Cyanamid Co Mixtures of polycationic and polyanionic polymers for scale control
US4166040A (en) * 1977-12-15 1979-08-28 American Cyanamid Company Compositions comprising mixtures of polycationic and polyanionic polymers as magnesium scale control agents
US4166041A (en) * 1977-12-15 1979-08-28 American Cyanamid Company Process for magnesium scale control using mixtures of polycationic and polyanionic polymers
US4357207A (en) * 1981-06-01 1982-11-02 Calgon Corporation Low molecular weight cationic polymers as deposit inhibitors and dispersants in black liquor recovery systems
US4536292A (en) * 1984-03-26 1985-08-20 Calgon Corporation Carboxylic/sulfonic/quaternary ammonium polymers for use as scale and corrosion inhibitors

Also Published As

Publication number Publication date
AU1733892A (en) 1992-12-03
AU656970B2 (en) 1995-02-23
NZ242970A (en) 1994-12-22
EP0517453B1 (de) 1995-12-13
ATE131554T1 (de) 1995-12-15
CA2070078A1 (en) 1992-12-01
ES2082370T3 (es) 1996-03-16
JPH05228494A (ja) 1993-09-07
JPH084800B2 (ja) 1996-01-24
EP0517453A1 (de) 1992-12-09
DE69206684D1 (de) 1996-01-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee