CA553349A - Pulping process - Google Patents

Pulping process

Info

Publication number
CA553349A
CA553349A CA553349A CA553349DA CA553349A CA 553349 A CA553349 A CA 553349A CA 553349 A CA553349 A CA 553349A CA 553349D A CA553349D A CA 553349DA CA 553349 A CA553349 A CA 553349A
Authority
CA
Canada
Prior art keywords
pulping process
pulping
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
CA553349A
Other languages
French (fr)
Inventor
C. Harris George
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.)
Hercules Powder Co
Original Assignee
Hercules Powder 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.)
Publication date
Application granted granted Critical
Publication of CA553349A publication Critical patent/CA553349A/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D21C3/028—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of O3

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
CA553349A 1950-10-04 Pulping process Expired CA553349A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US188487A US2673148A (en) 1950-10-04 1950-10-04 Alkaline pulping using gaseous oxygen

Publications (1)

Publication Number Publication Date
CA553349A true CA553349A (en) 1958-02-18

Family

ID=22693359

Family Applications (1)

Application Number Title Priority Date Filing Date
CA553349A Expired CA553349A (en) 1950-10-04 Pulping process

Country Status (2)

Country Link
US (1) US2673148A (en)
CA (1) CA553349A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926114A (en) * 1957-08-12 1960-02-23 Kimberly Clark Co Manufacture of cellulosic products
CA632280A (en) * 1958-07-02 1961-12-05 Kimberly-Clark Corporation Manufacture of bleached cellulosic products resistant to brightness reversion
FR1387853A (en) * 1963-09-19 1965-02-05 Air Liquide Delignification and bleaching of chemical and semi-chemical cellulose pulps
SE355614B (en) * 1970-05-13 1973-04-30 Mo Och Domsjoe Ab
US4182648A (en) * 1972-02-07 1980-01-08 Sterling Drug Inc. Oxygen pulping process
JPS4887101A (en) * 1972-02-22 1973-11-16
SE373395B (en) * 1972-12-19 1975-02-03 Mo Och Domsjoe Ab PROCEDURE FOR THE PRODUCTION OF CELLULOSA MASS WITH HIGH LIGHTNESS BY DISTRIBUTING WOOD WITH ACID GAS UNDER PRESSURE IN THE PRESENCE OF A COCK
SE393138B (en) * 1974-03-14 1977-05-02 Mo Och Domsjoe Ab PROCEDURE FOR BLEACHING CELLULOSA WITH AN ACID CONTAINING GAS IN THE PRESENCE OF SODIUM BICARBONATE
US3910873A (en) * 1974-05-30 1975-10-07 Westvaco Corp Production of water-soluble polycarboxylic lignin by an oxygen-alkali process
US4058433A (en) * 1975-03-06 1977-11-15 Gulf States Paper Corporation Conversion of sulfur in blank liquor to eliminate odorous emissions and facilitate the collection of sulfate soaps
FI53141C (en) * 1975-09-02 1978-02-10 Keskuslaboratorio
US4664832A (en) * 1984-09-28 1987-05-12 State Of South Dakota As Represented By The Department Of Transportation Deicing chemicals and their preparation from polysaccharide sources
EP3339504A1 (en) 2016-12-22 2018-06-27 Lenzing Aktiengesellschaft Method of pulping cotton-based raw material
CN106948207A (en) * 2017-03-29 2017-07-14 厦门大学 A kind of alkaline salt solution oxidation system boiling delignification pulping process of string
CN109455837B (en) * 2018-10-08 2020-07-24 厦门大学 Recycling method of waste liquid obtained by removing lignin from weak base salt

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US21077A (en) * 1858-08-03 byman
DE312618C (en) * 1912-04-22 1900-01-01
FR540571A (en) * 1921-09-01 1922-07-13 Process for transforming plants into pulp
FR587935A (en) * 1924-05-16 1925-04-27 Process for extracting pure cellulose fibers from cellulose-containing materials made impure by encrustation, for example sulphite cellulose and vegetable fibrous materials, and for using residual lye
BE342081A (en) * 1926-05-21
NL21469C (en) * 1927-01-13
DE559405C (en) * 1927-09-23 1932-09-20 Arthur St Klein Dipl Ing Dr Process for the production of finely divided wood pulp
NL35585C (en) * 1929-06-07
US1831032A (en) * 1929-11-30 1931-11-10 Brown Co Production of refined wood pulp
US1996797A (en) * 1930-11-26 1935-04-09 Dreyfus Henry Production of cellulosic products
GB416558A (en) * 1933-03-07 1934-09-07 Henry Dreyfus Improvements in the manufacture of cellulose from ligno-cellulosic materials
FR815651A (en) * 1935-12-31 1937-07-20 Process for the disintegration of vegetable fibrous materials
BE428517A (en) * 1937-08-03
US2234188A (en) * 1938-03-31 1941-03-11 Masonite Corp Process of making light-colored ligno-cellulose fiber
US2538742A (en) * 1944-02-14 1951-01-16 United States Gypsum Co Digesting lignocellulose with a rosin soap
US2516827A (en) * 1945-07-09 1950-07-25 Ontario Paper Co Ltd Method of producing vanillin

Also Published As

Publication number Publication date
US2673148A (en) 1954-03-23

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