ZA72213B - Pyrolysis of spent pulping liquors - Google Patents

Pyrolysis of spent pulping liquors

Info

Publication number
ZA72213B
ZA72213B ZA720213A ZA72213A ZA72213B ZA 72213 B ZA72213 B ZA 72213B ZA 720213 A ZA720213 A ZA 720213A ZA 72213 A ZA72213 A ZA 72213A ZA 72213 B ZA72213 B ZA 72213B
Authority
ZA
South Africa
Prior art keywords
pyrolysis
spent pulping
pulping liquors
liquors
spent
Prior art date
Application number
ZA720213A
Other languages
English (en)
Inventor
Winfried George Timpe
Original Assignee
St Regis Paper Co
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
Priority to US00167871A priority Critical patent/US3762989A/en
Application filed by St Regis Paper Co filed Critical St Regis Paper Co
Priority to ZA720213A priority patent/ZA72213B/xx
Priority to DE2202707A priority patent/DE2202707C3/de
Priority to DE19722202726 priority patent/DE2202726C3/de
Priority claimed from DE19722202726 external-priority patent/DE2202726C3/de
Priority to FR7204036A priority patent/FR2171581A5/fr
Priority to FR7204037A priority patent/FR2171582A5/fr
Priority to FI585/72A priority patent/FI55065C/fi
Priority to JP47043806A priority patent/JPS492902A/ja
Publication of ZA72213B publication Critical patent/ZA72213B/xx

Links

Classifications

    • 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
    • C01B17/16—Hydrogen sulfides
    • C01B17/165—Preparation from sulfides, oxysulfides or polysulfides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/30—Active carbon
    • C01B32/312—Preparation
    • C01B32/318—Preparation characterised by the starting materials
    • C01B32/324—Preparation characterised by the starting materials from waste materials, e.g. tyres or spent sulfite pulp 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
    • D21C11/12—Combustion of pulp liquors
    • D21C11/125—Decomposition of the pulp liquors in reducing atmosphere or in the absence of oxidants, i.e. gasification or pyrolysis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S423/00—Chemistry of inorganic compounds
    • Y10S423/03—Papermaking liquor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Paper (AREA)
ZA720213A 1971-07-30 1972-01-12 Pyrolysis of spent pulping liquors ZA72213B (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US00167871A US3762989A (en) 1971-07-30 1971-07-30 Pyrolysis of spent pulping liquors
ZA720213A ZA72213B (en) 1971-07-30 1972-01-12 Pyrolysis of spent pulping liquors
DE2202707A DE2202707C3 (de) 1971-07-30 1972-01-20 Verfahren zur Gewinnung und Weiterverarbeitung von organischen Stoffen aus den beim Aufschluß von Lignocellulose enthaltendem Material anfallenden Ablaugen
DE19722202726 DE2202726C3 (de) 1972-01-20 Verfahren zur Wiederverwertung der beim Aufschluß von Ligno-Cellulose anfallenden Schwarzlauge
FR7204036A FR2171581A5 (xx) 1971-07-30 1972-02-07
FR7204037A FR2171582A5 (xx) 1971-07-30 1972-02-07
FI585/72A FI55065C (fi) 1971-07-30 1972-03-03 Foerfarande foer tillvaratagande av talloljetvaolar ur avlutloesningar
JP47043806A JPS492902A (xx) 1971-07-30 1972-05-04

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US16787171A 1971-07-30 1971-07-30
ZA720213A ZA72213B (en) 1971-07-30 1972-01-12 Pyrolysis of spent pulping liquors
DE2202707A DE2202707C3 (de) 1971-07-30 1972-01-20 Verfahren zur Gewinnung und Weiterverarbeitung von organischen Stoffen aus den beim Aufschluß von Lignocellulose enthaltendem Material anfallenden Ablaugen
DE19722202726 DE2202726C3 (de) 1972-01-20 Verfahren zur Wiederverwertung der beim Aufschluß von Ligno-Cellulose anfallenden Schwarzlauge
FR7204036A FR2171581A5 (xx) 1971-07-30 1972-02-07
FR7204037A FR2171582A5 (xx) 1971-07-30 1972-02-07

Publications (1)

Publication Number Publication Date
ZA72213B true ZA72213B (en) 1972-09-27

Family

ID=27544185

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA720213A ZA72213B (en) 1971-07-30 1972-01-12 Pyrolysis of spent pulping liquors

Country Status (4)

Country Link
US (1) US3762989A (xx)
DE (1) DE2202707C3 (xx)
FR (2) FR2171582A5 (xx)
ZA (1) ZA72213B (xx)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2553840C3 (de) * 1975-11-29 1981-01-29 Bayer Ag, 5090 Leverkusen Druckhydrolytische Behandlung von Abwasser
DE2818680A1 (de) * 1978-04-27 1979-10-31 Bayer Ag Verfahren zur aufarbeitung von nitro-hydroxy-aromaten enthaltenden abwaessern
US4637858A (en) * 1985-02-25 1987-01-20 Crown Zellerbach Corporation Pyrolysis of black liquor at high temperatures using radiant energy
US5480512A (en) * 1990-07-09 1996-01-02 A. Ahlstrom Corporation Method of controlling sulfidity of a sulfate pulp mill
US5326433A (en) * 1991-02-06 1994-07-05 Ahlstrom Recovery Inc. Multi-level sulfide content white liquor production and utilization in cellulose pulping
AU1765892A (en) * 1991-02-06 1992-09-07 A. Ahlstrom Corporation A method of recovering energy and chemicals from black liquor
FI914586A (fi) * 1991-09-27 1993-03-28 Ahlstroem Oy Foerfarande foer foerminskning av asklasten av en cellufabriks pannanlaeggning
SE468600B (sv) * 1991-12-16 1993-02-15 Chemrec Ab Saett att framstaella koklut med hoeg sulfiditet
US5360513A (en) * 1992-02-13 1994-11-01 A. Ahlstrom Corporation Sulphur removal from gases associated with boilers having cascade evaporators
US5366520A (en) * 1992-07-28 1994-11-22 Eric Tiemeyer Filtration fuel apparatus and method
US5374333A (en) * 1992-07-30 1994-12-20 Kamyr, Inc. Method for minimizing pulp mill effluents
FI95723C (fi) * 1992-11-10 1996-04-11 Lt Dynamics Oy Menetelmä suovan hapottamiseksi suurella yliannostuksella NaHSO3-liuosta
US5628872A (en) * 1993-10-22 1997-05-13 Kanyr Ab Method for bleaching pulp with hydrogen peroxide recovered from cellulosic spent liquor
FI95608B (fi) * 1994-06-17 1995-11-15 Ahlstroem Oy Menetelmä keittolipeiden valmistamiseksi viherlipeää kiteyttämällä
US5563282A (en) * 1995-03-27 1996-10-08 Union Carbide Chemicals & Plastics Technology Corporation Thermal process for removal of contaminants from process streams
US6326461B1 (en) 1998-01-30 2001-12-04 Ensyn Group, Inc. Natural resin formulations
GB0119237D0 (en) * 2001-08-07 2001-10-03 Bioregional Minimills Uk Ltd Paper plant
US20060201641A1 (en) * 2001-08-07 2006-09-14 Bioregional Minimills (Uk) Limited Methods for producing pulp and treating black liquor
ES2372749T3 (es) * 2002-07-04 2012-01-26 Metso Power Oy Método para el tratamiento de lejía residual.
US8853478B2 (en) * 2008-09-08 2014-10-07 Basf Se Method for the integrated production of cellulose and low-molecular-weight reusable materials
WO2011138355A2 (de) * 2010-05-07 2011-11-10 Basf Se Verfahren zur herstellung von zellstoff und wenigstens einem organischen flüssigen oder verflüssigbaren wertstoff mit abgasrückführung
EP4261343A1 (en) * 2022-04-13 2023-10-18 SCA Forest Products AB Conversion of biomass residues into bio-oil

Also Published As

Publication number Publication date
FR2171581A5 (xx) 1973-09-21
US3762989A (en) 1973-10-02
DE2202707B2 (de) 1975-03-13
DE2202726B2 (de) 1977-02-24
DE2202707C3 (de) 1975-10-30
DE2202726A1 (de) 1973-07-26
FR2171582A5 (xx) 1973-09-21
DE2202707A1 (de) 1973-07-26

Similar Documents

Publication Publication Date Title
ZA72213B (en) Pyrolysis of spent pulping liquors
ZA717876B (en) Upgrading of reformate
ZA728621B (en) Coal-conversion process
ZA72513B (en) Yarn process
GB1366395A (en) Coke
JPS5781661A (en) Method of operating computer
ZA727835B (en) Washing process
GB1405148A (en) Stereoisomers of 1-1-o-chlorobenzyl-2-pyrryl-2-disecbutylamino -ethalnl
GB1409531A (en) Steam treatment of fibres
HK14176A (en) Needles
ZA723446B (en) Improved fermentation process
ZA72212B (en) Pyrolysis of spent pulping liquors
ZA72435B (en) Softening of fabricks
CA963207A (en) Pyrolysis of spent pulping liquors
AU462372B2 (en) Pyrolysis of spent pulping liquors
AU3803272A (en) Pyrolysis of spent pulping liquors
CA678130A (en) Process of pyrolysis of spent alkali-containing cellulose liquors
ZA723212B (en) Bleaching process
CA989560A (en) Coking of spent pulping liquors used in the alkaline sulfite process
CA876609A (en) Processing of magnesia-base pulping liquor
PH13234A (en) Nitric acid pulping process
GB1373650A (en) Manufacture of anthraquinone compounds
ZA722495B (en) Treatment of fibres
CA967711A (en) Integrated process for coking spent base sulfite pulping liquors
CA884596A (en) Reactor steam circulator