FI934633A0 - Menetelmä natriumhydroksidin valmistamiseksi valkolipeästä - Google Patents

Menetelmä natriumhydroksidin valmistamiseksi valkolipeästä

Info

Publication number
FI934633A0
FI934633A0 FI934633A FI934633A FI934633A0 FI 934633 A0 FI934633 A0 FI 934633A0 FI 934633 A FI934633 A FI 934633A FI 934633 A FI934633 A FI 934633A FI 934633 A0 FI934633 A0 FI 934633A0
Authority
FI
Finland
Prior art keywords
white liquor
sodium hydroxide
sodium
liquor
polysulfide
Prior art date
Application number
FI934633A
Other languages
English (en)
Swedish (sv)
Other versions
FI934633A (fi
FI98538B (fi
FI98538C (fi
Inventor
Hannu Kurittu
Original Assignee
Enso Gutzeit Oy
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 Enso Gutzeit Oy filed Critical Enso Gutzeit Oy
Publication of FI934633A0 publication Critical patent/FI934633A0/fi
Priority to FI934633A priority Critical patent/FI98538C/fi
Priority to CA002118463A priority patent/CA2118463C/en
Priority to ES94850183T priority patent/ES2102799T3/es
Priority to EP94850183A priority patent/EP0649939B1/en
Priority to DE69403302T priority patent/DE69403302T2/de
Priority to AT94850183T priority patent/ATE153399T1/de
Publication of FI934633A publication Critical patent/FI934633A/fi
Priority to US08/805,588 priority patent/US5843316A/en
Publication of FI98538B publication Critical patent/FI98538B/fi
Application granted granted Critical
Publication of FI98538C publication Critical patent/FI98538C/fi

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
    • D21C11/0042—Fractionating or concentration of spent liquors by special methods
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/22—Alkali metal sulfides or polysulfides
    • C01B17/34—Polysulfides of sodium or potassium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • C01D1/28—Purification; Separation
    • C01D1/38—Purification; Separation by dialysis
    • 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
    • D21C11/0057—Oxidation of liquors, e.g. in order to reduce the losses of sulfur compounds, followed by evaporation or combustion if the liquor in question is a black liquor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FI934633A 1993-10-20 1993-10-20 Menetelmä natriumhydroksidin valmistamiseksi valkolipeästä FI98538C (fi)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FI934633A FI98538C (fi) 1993-10-20 1993-10-20 Menetelmä natriumhydroksidin valmistamiseksi valkolipeästä
CA002118463A CA2118463C (en) 1993-10-20 1994-10-19 Method of producing sodium hydroxide from white liquor
ES94850183T ES2102799T3 (es) 1993-10-20 1994-10-20 Procedimiento para producir hidroxido de sodio a partir de lejia blanca.
EP94850183A EP0649939B1 (en) 1993-10-20 1994-10-20 Method of producing sodium hydroxide from white liquor
DE69403302T DE69403302T2 (de) 1993-10-20 1994-10-20 Verfahren zum Herstellen von Natriumhydroxyd aus Weisslauge
AT94850183T ATE153399T1 (de) 1993-10-20 1994-10-20 Verfahren zum herstellen von natriumhydroxyd aus weisslauge
US08/805,588 US5843316A (en) 1993-10-20 1997-02-25 Method of separating sodium hydroxide from white liquor or polysulfide liquor using diffusion dialysis

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI934633A FI98538C (fi) 1993-10-20 1993-10-20 Menetelmä natriumhydroksidin valmistamiseksi valkolipeästä
FI934633 1993-10-20

Publications (4)

Publication Number Publication Date
FI934633A0 true FI934633A0 (fi) 1993-10-20
FI934633A FI934633A (fi) 1995-04-21
FI98538B FI98538B (fi) 1997-03-27
FI98538C FI98538C (fi) 1997-07-10

Family

ID=8538809

Family Applications (1)

Application Number Title Priority Date Filing Date
FI934633A FI98538C (fi) 1993-10-20 1993-10-20 Menetelmä natriumhydroksidin valmistamiseksi valkolipeästä

Country Status (7)

Country Link
US (1) US5843316A (fi)
EP (1) EP0649939B1 (fi)
AT (1) ATE153399T1 (fi)
CA (1) CA2118463C (fi)
DE (1) DE69403302T2 (fi)
ES (1) ES2102799T3 (fi)
FI (1) FI98538C (fi)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE507033C2 (sv) * 1995-07-04 1998-03-16 Kvaerner Pulping Tech Framställning av polysulfid genom oxidation av sulfid i grönlut
SE504737C2 (sv) * 1995-07-04 1997-04-14 Kvaerner Pulping Tech Framställning av polysulfid genom oxidation av sulfid med grönlutsslam som katalysator
US5942084A (en) * 1997-01-24 1999-08-24 Pulp And Paper Research Institute Of Canada Process for the separation of sulphides from pulping liquors using amphoteric resins
CN1298637C (zh) * 2005-08-08 2007-02-07 南京工业大学 含色素废碱液中回收氢氧化钠的方法
EP2842618A1 (en) * 2013-09-02 2015-03-04 VITO NV (Vlaamse Instelling voor Technologisch Onderzoek NV) Apparatus and method for product recovery and electrical energy generation
SE538784C2 (sv) * 2015-04-09 2016-11-22 Valmet Oy Method for polysulfide production in a kraft pulp mill
FI128221B (fi) 2015-04-27 2019-12-31 Metsae Fibre Oy Menetelmä polysulfidilipeän valmistamiseen käytetyn katalyytin regeneroimiseksi
KR20240038812A (ko) 2017-03-08 2024-03-25 호프 메디칼 엔터프라이즈스, 인크, 디비에이, 호프파마수으티칼즈 아질산나트륨의 투석중 용도
IL302827B1 (en) * 2017-03-08 2024-06-01 Hope Medical Entpr Inc Dba Hope Pharmaceuticals Intradialytic use of sodium thiosulfate

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024229A (en) * 1970-11-06 1977-05-17 The Mead Corporation Production of polysulfide with PTFE coated catalyst
JPS60112009A (ja) * 1983-11-22 1985-06-18 Asahi Optical Co Ltd ズ−ムレンズのズ−ム駆動装置
JPS60122009A (ja) * 1983-12-06 1985-06-29 Asahi Chem Ind Co Ltd アルカリの透析方法
CA1335976C (en) * 1989-05-31 1995-06-20 Mahmoud Kamran Azarniouch Recovery of naoh and other values from spent liquors and bleach plant effluents
US5326433A (en) * 1991-02-06 1994-07-05 Ahlstrom Recovery Inc. Multi-level sulfide content white liquor production and utilization in cellulose pulping
US5382322A (en) * 1991-10-18 1995-01-17 Air Products And Chemicals, Inc. Selective white liquor oxidation
FI98537C (fi) * 1993-10-20 1997-07-10 Enso Gutzeit Oy Menetelmä valkolipeässä olevan natriumhydroksidin erottamiseksi

Also Published As

Publication number Publication date
FI934633A (fi) 1995-04-21
US5843316A (en) 1998-12-01
FI98538B (fi) 1997-03-27
EP0649939B1 (en) 1997-05-21
DE69403302D1 (de) 1997-06-26
EP0649939A1 (en) 1995-04-26
ATE153399T1 (de) 1997-06-15
FI98538C (fi) 1997-07-10
DE69403302T2 (de) 1997-12-18
CA2118463A1 (en) 1995-04-21
CA2118463C (en) 2005-10-18
ES2102799T3 (es) 1997-08-01

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Legal Events

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BB Publication of examined application
MA Patent expired