SE436584B - Forfarande for ligninavlegsnande fran och blekning av tremassa - Google Patents

Forfarande for ligninavlegsnande fran och blekning av tremassa

Info

Publication number
SE436584B
SE436584B SE7601934A SE7601934A SE436584B SE 436584 B SE436584 B SE 436584B SE 7601934 A SE7601934 A SE 7601934A SE 7601934 A SE7601934 A SE 7601934A SE 436584 B SE436584 B SE 436584B
Authority
SE
Sweden
Prior art keywords
tremass
lignin
whitening
procedure
development
Prior art date
Application number
SE7601934A
Other languages
English (en)
Swedish (sv)
Other versions
SE7601934L (sv
Inventor
K J Brown
A W Kempf
Original Assignee
Int 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
Application filed by Int Paper Co filed Critical Int Paper Co
Publication of SE7601934L publication Critical patent/SE7601934L/xx
Publication of SE436584B publication Critical patent/SE436584B/xx

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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Medicines Containing Plant Substances (AREA)
SE7601934A 1975-10-10 1976-02-19 Forfarande for ligninavlegsnande fran och blekning av tremassa SE436584B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/621,355 US4002526A (en) 1975-10-10 1975-10-10 Oxygen-alkali delignification of low consistency wood pulp

Publications (2)

Publication Number Publication Date
SE7601934L SE7601934L (sv) 1977-04-11
SE436584B true SE436584B (sv) 1985-01-07

Family

ID=24489828

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7601934A SE436584B (sv) 1975-10-10 1976-02-19 Forfarande for ligninavlegsnande fran och blekning av tremassa

Country Status (11)

Country Link
US (1) US4002526A (Sortimente)
JP (1) JPS6024875B2 (Sortimente)
AT (1) AT349883B (Sortimente)
AU (1) AU502921B2 (Sortimente)
BR (1) BR7603292A (Sortimente)
CA (1) CA1070056A (Sortimente)
FI (1) FI65096C (Sortimente)
FR (1) FR2327357A1 (Sortimente)
NO (1) NO143752C (Sortimente)
SE (1) SE436584B (Sortimente)
ZA (1) ZA762574B (Sortimente)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU3102077A (en) * 1976-12-01 1979-06-07 New Zealand Dev Finance Treating lignocellulosic or cellulosic pulp
US4622100A (en) * 1984-10-01 1986-11-11 International Paper Company Process for the delignification of lignocellulosic material with oxygen, ferricyanide, and a protector
ATE169699T1 (de) * 1993-06-16 1998-08-15 Lignozym Gmbh Verfahren zur veränderung, abbau oder bleichen von lignin, ligninhaltigen materialien oder kohle
WO1996033308A1 (en) * 1995-04-20 1996-10-24 R-J Holding Company Pulping process
US20030150065A1 (en) * 1998-12-30 2003-08-14 Sheng-Hsin Hu Liquid ammonia explosion treatment of wood fibers
WO2009138090A2 (en) * 2008-05-14 2009-11-19 Rådet For Agroindustri A process for the production of hydrolysed plant material
RU2636363C2 (ru) * 2013-03-21 2017-11-22 Джапан Тобакко Инк. Способ получения черного щелочного раствора и способ получения содержащей ароматизирующий компонент жидкости
US11154087B2 (en) 2016-02-02 2021-10-26 R.J. Reynolds Tobacco Company Method for preparing flavorful compounds isolated from black liquor and products incorporating the flavorful compounds

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2071304A (en) * 1934-12-04 1937-02-16 Great Western Electro Chemical Co Process of manufacture of products of ground wood pulp
US2271218A (en) * 1937-08-31 1942-01-27 Baudisch Friedrich Method of decomposing maize straw for textile purposes
NL54060C (Sortimente) * 1939-03-22 1942-10-15
US2361639A (en) * 1940-07-15 1944-10-31 Henry A Wallace Process for defibering lignocellulosic materials
US2372561A (en) * 1941-06-19 1945-03-27 Joseph C Elgin Process of treating low rank textile fibers
US2394989A (en) * 1942-03-11 1946-02-19 Bonard Claude Manufacture of cellulose
US3161562A (en) * 1960-12-13 1964-12-15 Champion Papers Inc Pulping cellulose material with an alkaline cooking liquor containing hydrazine
US3308012A (en) * 1963-08-19 1967-03-07 Du Pont Use of sulfamic acid in chlorination step of multistage bleaching process
US3368935A (en) * 1964-10-12 1968-02-13 Sonoco Products Co Sulfite pulping process with urea
US3507743A (en) * 1965-02-23 1970-04-21 Fmc Corp Bleaching of wood pulps with reductive bleaching agents and thiourea
US3274049A (en) * 1965-02-25 1966-09-20 Pullman Inc Process for pulping bagasse with ammonium hydroxide and oxygen
US3401076A (en) * 1965-08-12 1968-09-10 Allied Chem Increasing kraft pulp yield with hydroxylamine
CA752864A (en) * 1965-10-12 1967-02-14 Pulp And Paper Research Institute Of Canada Extraction of fibrous cellulosic material with ammonia following treatment with chlorine, chlorine dioxide or other reagents
FR1531616A (fr) * 1967-05-24 1968-07-05 Azote Office Nat Ind Procédé de blanchiment textile rapide
CA864409A (en) * 1969-04-14 1971-02-23 H. Andrews Douglas Pulp bleaching process
ZA697269B (en) * 1969-10-15 1971-04-28 Air Liquide Sa Exploit Des Pro Improvements in or relating to the delignification and bleaching of cellulose pulp with oxygen gas
GB1310835A (en) * 1970-05-28 1973-03-21 Pulp Paper Research Inst Of Ca Treatment of chemical cellulosic pulp
US3740311A (en) * 1971-05-24 1973-06-19 Pulp Paper Res Inst Delignification of cellulosic pulp with ammonia gas followed by heating in the presence of oxygen
FI52877B (Sortimente) * 1972-11-16 1977-08-31 Ahlstroem Oy
US3832276A (en) * 1973-03-07 1974-08-27 Int Paper Co Delignification and bleaching of a cellulose pulp slurry with oxygen

Also Published As

Publication number Publication date
US4002526A (en) 1977-01-11
AU1341376A (en) 1977-11-03
AU502921B2 (en) 1979-08-16
NO761808L (Sortimente) 1977-04-13
BR7603292A (pt) 1977-05-24
FI65096C (fi) 1984-03-12
JPS5253004A (en) 1977-04-28
CA1070056A (en) 1980-01-22
SE7601934L (sv) 1977-04-11
ATA398976A (de) 1978-09-15
ZA762574B (en) 1977-04-27
AT349883B (de) 1979-04-25
FI65096B (fi) 1983-11-30
JPS6024875B2 (ja) 1985-06-14
FR2327357A1 (fr) 1977-05-06
NO143752B (no) 1980-12-29
FI761526A7 (Sortimente) 1977-04-11
NO143752C (no) 1981-04-08

Similar Documents

Publication Publication Date Title
NO143539C (no) Fremgangsmaate til delignifisering av lignocellulosemateriale
SE435386B (sv) Triestrar av fosfonometylglycin och forfarande for framstellning derav
SE420164B (sv) Forfarande och anordning for framstellning av oppningar i bandmaterial
SE396772B (sv) Forfarande for extraktion och utvinning av kvicksilver ur gaser
SE435238B (sv) Forfarande och anordning for separering av isotoper
SE434946B (sv) Forfarande for framstellning av acylsackariner och acyl-3-oxo-1,2-densisotiazoliner
SE7611091L (sv) Forfarande for uppslutning av xylanhaltiga naturprodukter
SE426953B (sv) Forfarande for framstellning av flytande och lagringsbestendiga organopolysiloxankompositioner
SE7613973L (sv) Forfarande for framstellning av pappersmassa
SE421319B (sv) Forfarande for framstellning av etbara polysackarider och polysackaridderivat
SE432616B (sv) Forfarande for samtidig mjukgoring, rengoring och avfettning av rafellar
SE436584B (sv) Forfarande for ligninavlegsnande fran och blekning av tremassa
NO139555C (no) Fremgangsmaate for fremstilling av fosgen
SE440898B (sv) Forfarande och anordning for forkalcinering av ramaterial
SE407317B (sv) Sett och anordnig for bildande av en bipoler signal
SE425509B (sv) Forfarande och anordning for generering av teknetium-99m utgaende fran molybden-99
SE7602684L (sv) Racketram och forfarande for framstellning av sadan
SE7504421L (sv) Forfarande for delignifiering och blekning av cellulosamassa
SE7611686L (sv) Disubstituerade fenoletrar av 3-amino-2-hydroxipropan och sett for deras framstellning
SE7603768L (sv) Forfarande och anordning for framstellning av optiska formdelar
SE7706370L (sv) Forfarande for kokning och delignifiering av cellulosahaltiga material
SE417086B (sv) Forfarande for framstellning av 2-etylindan och 2-isopropylindan
SE426059B (sv) Forfarande for framstellning av ren druvsyra och av mesovinsyra
SE406586B (sv) Nytt forfarande for framstellning av 3-fenyl-indol-2-sarbonitril och derivat derav
SE7507449L (sv) Forfarande och anordning for behandling av fibermassa