GB1501456A - Method of increasing pulp yield and viscosity - Google Patents

Method of increasing pulp yield and viscosity

Info

Publication number
GB1501456A
GB1501456A GB5048/75A GB504875A GB1501456A GB 1501456 A GB1501456 A GB 1501456A GB 5048/75 A GB5048/75 A GB 5048/75A GB 504875 A GB504875 A GB 504875A GB 1501456 A GB1501456 A GB 1501456A
Authority
GB
United Kingdom
Prior art keywords
aqueous solution
sodium hydroxide
cellulosic material
viscosity
deliquifying
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB5048/75A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Paper Co
Original Assignee
International 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 International Paper Co filed Critical International Paper Co
Publication of GB1501456A publication Critical patent/GB1501456A/en
Expired legal-status Critical Current

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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds

Landscapes

  • Paper (AREA)
GB5048/75A 1974-08-12 1975-02-06 Method of increasing pulp yield and viscosity Expired GB1501456A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49673474A 1974-08-12 1974-08-12

Publications (1)

Publication Number Publication Date
GB1501456A true GB1501456A (en) 1978-02-15

Family

ID=23973900

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5048/75A Expired GB1501456A (en) 1974-08-12 1975-02-06 Method of increasing pulp yield and viscosity

Country Status (9)

Country Link
JP (1) JPS5126303A (enrdf_load_stackoverflow)
CA (1) CA1050212A (enrdf_load_stackoverflow)
DE (1) DE2505004A1 (enrdf_load_stackoverflow)
FI (1) FI750314A7 (enrdf_load_stackoverflow)
FR (1) FR2282017A1 (enrdf_load_stackoverflow)
GB (1) GB1501456A (enrdf_load_stackoverflow)
IT (1) IT1027406B (enrdf_load_stackoverflow)
NO (1) NO750369L (enrdf_load_stackoverflow)
SE (1) SE7501239L (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61167292U (enrdf_load_stackoverflow) * 1986-03-20 1986-10-17

Also Published As

Publication number Publication date
SE7501239L (sv) 1976-02-13
JPS5126303A (enrdf_load_stackoverflow) 1976-03-04
FR2282017A1 (fr) 1976-03-12
DE2505004A1 (de) 1976-02-26
NO750369L (enrdf_load_stackoverflow) 1976-02-13
FI750314A7 (enrdf_load_stackoverflow) 1976-02-13
IT1027406B (it) 1978-11-20
CA1050212A (en) 1979-03-13

Similar Documents

Publication Publication Date Title
EP0057105A3 (en) Method of producing alkali-soluble cellulose derivative
ES425711A1 (es) Procedimiento para la desliquificacion de un material lig- nocelulosico.
GB1509568A (en) Delignification and bleaching of cellulose pulp with oxygen
DE3364788D1 (en) Process for producing half-bleached cellulose pulps
GB1325505A (en) Method for reclaiming pulp from waste papers
GB497982A (en) Improvements in or relating to a fermentation process for the preparation of paper-pulp from incrusted cellulose fibres
GB1501456A (en) Method of increasing pulp yield and viscosity
DE69111098D1 (de) Verfahren zur Herstellung von gebleichtem Zellstoff mit hoher Ausbeute.
GB1379295A (en) Composition and method for reclaiming pulp from waste papers
BR8405541A (pt) Processo para a producao de lignino mediante precipitacao de solucoes de lignino alcalinas
GB1417354A (en) Process for the pulping of wood chips
SE8604852L (sv) Delignifiering och blekning av en cellulosamassa med en alkali-syre-hypokloritextraktion
GB1301031A (en) Pulp and a process for the production thereof
ES8204015A1 (es) Procedimiento para preparar pulpa celulosica
DE2964073D1 (en) Process for making viscose
ES414474A1 (es) Metodo para reducir a pasta de papel maderas duras.
GB1526621A (en) Delignification process
KR850001340A (ko) 요소(urea)ㆍ알칼리 증해액에 의한 화학펄프제조법
FI980008L (fi) Menetelmä alkaliliukoisen selluloosan valmistamiseksi ja menetelmä kuitujen, kalvojen ja muiden tuotteiden valmistamiseksi liukoisesta selluloosasta
FR2189572A1 (en) Bleaching alkaline cellulosic pulp with oxygen - in presence of formaldehyde, (m)ethanol isopropanol, glycerol, sorbitol etc, to ensure slow disintegration of cellulose
GB725953A (en) Improvements in or relating to methods for the bleaching of textile material consisting of polyamides
SU372306A1 (ru) СПОСОБ ОТБЕЛКИ ЦЕЛЛЮЛОЗЫ\ШШ:У:,-.-к:Щ^i-'':biji/,\,; i L:i'iA, \Ji_»,
SU891688A1 (ru) Способ получени низкозамещенных щелочерастворимых ксантогенатов целлюлозы
FR2087588A5 (en) Increased yield in paper paste production - using sodium carbonate , sodium sulphide impregnation
GB1318131A (en) Method of brightening kraft pulps

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee