FI110878B - Sähkökemiallinen menetelmä - Google Patents

Sähkökemiallinen menetelmä Download PDF

Info

Publication number
FI110878B
FI110878B FI961467A FI961467A FI110878B FI 110878 B FI110878 B FI 110878B FI 961467 A FI961467 A FI 961467A FI 961467 A FI961467 A FI 961467A FI 110878 B FI110878 B FI 110878B
Authority
FI
Finland
Prior art keywords
att
alkali metal
green liquor
sulfide
kännetecknat
Prior art date
Application number
FI961467A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI961467A0 (fi
FI961467A (fi
Inventor
Johan Landfors
Bo Haakansson
Original Assignee
Eka Chemicals Ab
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 Eka Chemicals Ab filed Critical Eka Chemicals Ab
Publication of FI961467A0 publication Critical patent/FI961467A0/fi
Publication of FI961467A publication Critical patent/FI961467A/fi
Application granted granted Critical
Publication of FI110878B publication Critical patent/FI110878B/fi

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00Regeneration of pulp liquors or effluent waste waters
    • D21C11/0064Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00Regeneration of pulp liquors or effluent waste waters
    • D21C11/0057Oxidation 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
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00Regeneration of pulp liquors or effluent waste waters
    • D21C11/04Regeneration of pulp liquors or effluent waste waters of alkali lye

Landscapes

  • Paper (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
FI961467A 1995-04-06 1996-04-01 Sähkökemiallinen menetelmä FI110878B (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9501287A SE515833C2 (sv) 1995-04-06 1995-04-06 Elektrokemisk oxidation av sulfid i grönlut
SE9501287 1995-04-06

Publications (3)

Publication Number Publication Date
FI961467A0 FI961467A0 (fi) 1996-04-01
FI961467A FI961467A (fi) 1996-10-07
FI110878B true FI110878B (fi) 2003-04-15

Family

ID=20397879

Family Applications (1)

Application Number Title Priority Date Filing Date
FI961467A FI110878B (fi) 1995-04-06 1996-04-01 Sähkökemiallinen menetelmä

Country Status (7)

Country Link
JP (1) JP3098422B2 (pt)
BR (1) BR9601235A (pt)
CA (1) CA2173191C (pt)
FI (1) FI110878B (pt)
NZ (1) NZ286303A (pt)
PT (1) PT101862B (pt)
SE (1) SE515833C2 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4187826B2 (ja) * 1998-05-29 2008-11-26 川崎化成工業株式会社 電解酸化による多硫化物の製造方法
JP5504818B2 (ja) 2009-10-23 2014-05-28 ソニー株式会社 動作関連演算装置、動作関連演算方法、プログラム、動作関連再生システム

Also Published As

Publication number Publication date
FI961467A0 (fi) 1996-04-01
CA2173191A1 (en) 1996-10-07
PT101862A (pt) 1996-11-29
JP3098422B2 (ja) 2000-10-16
SE9501287L (sv) 1996-10-07
NZ286303A (en) 1997-05-26
SE515833C2 (sv) 2001-10-15
FI961467A (fi) 1996-10-07
CA2173191C (en) 2001-06-05
SE9501287D0 (sv) 1995-04-06
PT101862B (pt) 1998-04-30
JPH08284089A (ja) 1996-10-29
BR9601235A (pt) 1998-01-06

Similar Documents

Publication Publication Date Title
FI117563B (fi) Polysulfidin valmistaminen sulfidia sisältävän valkolipeän elektrolyysillä
US4350575A (en) Method for preparing an aqueous treatment solution containing at least hydrogen peroxide ions and hydroxyl ions in predetermined concentrations
Paleologou et al. Enhancement of the current efficiency for sodium hydroxide production from sodium sulphate in a two-compartment bipolar membrane electrodialysis system
FI113638B (fi) Menetelmä liuosten puhdistamiseksi ja kierrättämiseksi sekä laitos menetelmän toteuttamiseksi
Mandal et al. Caustic recovery from green liquor of agro-based paper mills using electrolysis
CA2224824C (en) Method for producing polysulfides by electrolytic oxidation
CN105330102B (zh) 一种改进的dsd酸的生产工艺
AU688683B2 (en) Leaching process
US5653861A (en) Electrochemical process
FI110878B (fi) Sähkökemiallinen menetelmä
PT1178009E (pt) Método para a produção de polissulfureto através da utilizaçãode oxidação electrolítica.
JP2630507B2 (ja) パルプ化薬品回収系中の塩化物の低減
EP1245723B1 (en) Method for recovering chemicals in a process of producing pulp by kraft process
AU644179B2 (en) Electrochemical production of acid chlorate solutions
CN207792904U (zh) 一种绿色节能脱硫废水处理系统
FI112351B (fi) Happamuudensäätö klooridioksidin valmistuksessa
FI98537C (fi) Menetelmä valkolipeässä olevan natriumhydroksidin erottamiseksi
RU2221741C1 (ru) Способ получения щелочного раствора пероксида водорода и диоксида хлора
JPH09503551A (ja) 酸性にされたプロセス流の製造方法
JPH11158674A (ja) 過酸化水素製造装置
CN110028193A (zh) 废水资源化系统

Legal Events

Date Code Title Description
MA Patent expired