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SU1766244A3 - Method of soda black lye processing - Google Patents

Method of soda black lye processing Download PDF

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Publication number
SU1766244A3
SU1766244A3 SU894614033A SU4614033A SU1766244A3 SU 1766244 A3 SU1766244 A3 SU 1766244A3 SU 894614033 A SU894614033 A SU 894614033A SU 4614033 A SU4614033 A SU 4614033A SU 1766244 A3 SU1766244 A3 SU 1766244A3
Authority
SU
USSR - Soviet Union
Prior art keywords
soda black
separation
lye processing
black lye
separator
Prior art date
Application number
SU894614033A
Other languages
Russian (ru)
Inventor
Киискиля Эркки
Original Assignee
А.Альстрем Корпорейшн (Фирма)
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 А.Альстрем Корпорейшн (Фирма) filed Critical А.Альстрем Корпорейшн (Фирма)
Application granted granted Critical
Publication of SU1766244A3 publication Critical patent/SU1766244A3/en

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
    • D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye
    • 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
    • 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
    • C01D1/20—Preparation by reacting oxides or hydroxides with alkali metal salts
    • C01D1/22—Preparation by reacting oxides or hydroxides with alkali metal salts with carbonates or bicarbonates
    • 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
    • D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
    • D21C11/063—Treatment of gas streams comprising solid matter, e.g. the ashes resulting from the combustion of black liquor
    • D21C11/066—Separation of solid compounds from these gases; further treatment of recovered products
    • 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
    • D21C7/00—Digesters
    • D21C7/04—Linings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Cyclones (AREA)
  • Treating Waste Gases (AREA)

Abstract

When combusting sulfur-free soda black liquor in the presence of iron oxide in a fluidized bed reactor provided with a circulating bed, particle fraction of the size larger than 50 mu m is separated from the flue gases and recycled to the reactor. In a preferred embodiment of the invention the separation is carried out in a cyclone separator (7) the separation capacity of which is controlled by an upwards directed air flow supplied to the bottom of the cone (10) of the separator.

Description

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Claims (1)

ожиженном слое оксида железе л , л ре кислородсодержащего жжл .жж образующегося пре злом Джоу,/ ж- : получением гидроксида тажр, ^ ,, · железа, разделен на их и '.жиж го на стадию скжжо о а ' a liquefied layer of iron oxide l, l re oxygen-containing lzhl.zhzh formed by the evil Jow, / l-: obtaining hydroxide tazhr, ^ ,, · iron, divided into them and '. тем что, с цел ью· жжжкжζ-μ рч--ж ДЗ Ж67!б-3а. ϋ т λ Д ’ж! и ДЧ'.the fact that, with the aim of zhzhzhkzhz-μ rh - z DZ Zh67! b-3a. ϋ t λ d 'w ! and DCh '. газообразные !'ро,жд- пн жужн чч. рации л выделенные жж; т е ρ и а л а с з ж л а р о ж ч ч. -: 'gaseous! 'ro, zh-mon zhuzhn hh. walkie-talkies l allocated LJ; t e r and a l as z z z l and r about z h h. -: ' рециркулиоуЮ’г -ж жж.жжо ж·.- ж.recirculiouYu'g -zh zhzh.zhzho zh · .- zh.
SU894614033A 1986-10-31 1989-04-28 Method of soda black lye processing SU1766244A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI864436A FI77278C (en) 1986-10-31 1986-10-31 Method and apparatus for combustion of soda black liquor.

Publications (1)

Publication Number Publication Date
SU1766244A3 true SU1766244A3 (en) 1992-09-30

Family

ID=8523417

Family Applications (1)

Application Number Title Priority Date Filing Date
SU894614033A SU1766244A3 (en) 1986-10-31 1989-04-28 Method of soda black lye processing

Country Status (7)

Country Link
JP (1) JPH01502761A (en)
KR (1) KR880701801A (en)
AU (1) AU600048B2 (en)
BR (1) BR8707849A (en)
FI (1) FI77278C (en)
SU (1) SU1766244A3 (en)
WO (1) WO1988003191A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA937252B (en) * 1992-09-30 1994-04-19 North Broken Hill Ltd A process for pelletising particles of alkali metal ferrite
SE9702401D0 (en) 1997-06-19 1997-06-19 Astra Ab Pharmaceutical use

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526760A (en) * 1982-07-21 1985-07-02 International Paper Co. Recovery of heat and chemical values from spent pulping liquors
JPS59164627A (en) * 1983-03-09 1984-09-17 Mitsubishi Heavy Ind Ltd Method for recovering soda from waste liquor from pulp manufacturing stage
JPS602791A (en) * 1983-06-21 1985-01-09 製紙技術研究組合 Direct caustic method using fluidized layer
JPH0784716B2 (en) * 1985-10-29 1995-09-13 三菱重工業株式会社 Method for recovering caustic soda from alkaline pulp waste liquor

Also Published As

Publication number Publication date
FI77278C (en) 1989-02-10
BR8707849A (en) 1989-10-03
FI864436L (en) 1988-05-01
KR880701801A (en) 1988-11-05
FI77278B (en) 1988-10-31
JPH0253553B2 (en) 1990-11-19
AU600048B2 (en) 1990-08-02
FI864436A0 (en) 1986-10-31
WO1988003191A1 (en) 1988-05-05
AU8174487A (en) 1988-05-25
JPH01502761A (en) 1989-09-21

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