FI760683A - - Google Patents

Info

Publication number
FI760683A
FI760683A FI760683A FI760683A FI760683A FI 760683 A FI760683 A FI 760683A FI 760683 A FI760683 A FI 760683A FI 760683 A FI760683 A FI 760683A FI 760683 A FI760683 A FI 760683A
Authority
FI
Finland
Application number
FI760683A
Other versions
FI63611C (fi
FI63611B (fi
Inventor
Jr Dexter Edge
Original Assignee
Itt
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 Itt filed Critical Itt
Publication of FI760683A publication Critical patent/FI760683A/fi
Application granted granted Critical
Publication of FI63611B publication Critical patent/FI63611B/fi
Publication of FI63611C publication Critical patent/FI63611C/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
    • D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
    • C07D307/40—Radicals substituted by oxygen atoms
    • C07D307/46—Doubly bound oxygen atoms, or two oxygen atoms singly bound to the same carbon atom
    • C07D307/48—Furfural

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Water Treatments (AREA)
FI760683A 1975-03-17 1976-03-16 Foerfarande foer avlaegsning och aotervinning av flyktiga organiska komponenter fraon sulfitavlut FI63611C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/559,174 US4155804A (en) 1975-03-17 1975-03-17 Removal of volatile organic components from spent sulfite effluent
US55917475 1975-03-17

Publications (3)

Publication Number Publication Date
FI760683A true FI760683A (fi) 1976-09-18
FI63611B FI63611B (fi) 1983-03-31
FI63611C FI63611C (fi) 1983-07-11

Family

ID=24232576

Family Applications (1)

Application Number Title Priority Date Filing Date
FI760683A FI63611C (fi) 1975-03-17 1976-03-16 Foerfarande foer avlaegsning och aotervinning av flyktiga organiska komponenter fraon sulfitavlut

Country Status (7)

Country Link
US (1) US4155804A (fi)
JP (1) JPS5944436B2 (fi)
CA (1) CA1082403A (fi)
DE (1) DE2610682A1 (fi)
FI (1) FI63611C (fi)
IT (1) IT1059579B (fi)
SE (1) SE416412B (fi)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61148332U (fi) * 1985-03-08 1986-09-12
US4666612A (en) * 1986-03-17 1987-05-19 Kerr-Mcgee Chemical Corporation Method for recovering a wood preservative from waste sludges
AT387408B (de) * 1987-05-12 1989-01-25 Voest Alpine Ind Anlagen Kombiniertes verfahren zur thermischen und chemischen behandlung von lignocellulosehaltiger biomasse und zur gewinnung von furfural
AT387247B (de) * 1987-05-12 1988-12-27 Voest Alpine Ind Anlagen Kombiniertes verfahren zur thermischen und chemischen behandlung von lignocellulosehaltiger biomasse und zur gewinnung von furfural
US4802995A (en) * 1987-06-05 1989-02-07 Rostoker, Inc. Method for decomposing the cyanide radical in cyanide-bearing wastes or materials
FI85515C (fi) * 1990-07-09 1996-04-10 Ahlstroem Oy Foerfarande foer reglering av en sulfatcellulosafabriks sulfiditet
FI92226B (fi) * 1991-04-15 1994-06-30 Ahlstroem Oy Menetelmä jäteliemen väkevöimiseksi ja keittokemikaalien talteenottamiseksi massanvalmistuksessa alkoholipohjaisilla keittoliuoksilla
US5643420A (en) * 1993-09-03 1997-07-01 Farmland Industries, Inc. Method for treating process condensate
US5779861A (en) * 1993-09-03 1998-07-14 Farmland Industries, Inc. Method for treating process condensate
US5385646A (en) * 1993-09-03 1995-01-31 Farmland Industries, Inc. Method of treating chemical process effluent
RU2091529C1 (ru) * 1995-11-21 1997-09-27 Грудинин Владимир Павлович Способ приготовления варочного раствора для получения волокнистого полуфабриката
US6110376A (en) * 1998-02-09 2000-08-29 J. D. Irving, Limited Use of reverse osmosis membranes to treat evaporator clean condensate
FI117633B (fi) * 2000-12-29 2006-12-29 Chempolis Oy Kemikaalien talteenotto ja valmistus massan valmistuksen yhteydessä
FI117632B (fi) * 2001-07-13 2006-12-29 Chempolis Oy Menetelmä massan valmistamiseksi
FI119110B (fi) * 2001-11-09 2008-07-31 Andritz Oy Menetelmä lauhteiden käsittelemiseksi
SE0402201D0 (sv) * 2004-09-14 2004-09-14 Stfi Packforsk Ab Method for separating lignin from black liquor
EP2511003A1 (en) 2011-04-13 2012-10-17 Bartholomäus T. Brück Environment friendly method for the production of cement
JP7163415B2 (ja) * 2018-05-28 2022-10-31 ピアソン キャピタル エンバイロメンタル （ベイジン） リミテッド 植物材料の有機酸前処理から生成物を回収するための効率的な方法および組成物

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1838109A (en) * 1930-06-06 1931-12-29 Brown Co Production of furfural
US2801206A (en) * 1949-04-02 1957-07-30 Goddard Harold Oliver Process of recovering alcohol from waste sulphite liquor
US3085038A (en) * 1958-10-15 1963-04-09 Res And Mechanical Applic S P Production of cellulose furfural and fodder from agricultural waste
US3462343A (en) * 1966-05-16 1969-08-19 Babcock & Wilcox Co Method for recovery of chemicals from magnesium base sulphite digestion process
US3764462A (en) * 1971-09-09 1973-10-09 Scott Paper Co Recovery of furfural and methanol from spent pulping liquors
SE365008B (fi) * 1971-11-19 1974-03-11 Mo Och Domsjoe Ab
FI51604B (fi) * 1973-04-09 1976-11-01 Taavi Paavali Siuko

Also Published As

Publication number Publication date
SE416412B (sv) 1980-12-22
DE2610682A1 (de) 1976-09-30
JPS5944436B2 (ja) 1984-10-29
FI63611C (fi) 1983-07-11
SE7603292L (sv) 1976-09-18
CA1082403A (en) 1980-07-29
JPS51136902A (en) 1976-11-26
IT1059579B (it) 1982-06-21
FI63611B (fi) 1983-03-31
US4155804A (en) 1979-05-22
DE2610682C2 (fi) 1987-10-15

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: ITT INDUSTRIES, INC.