ES414474A1 - Pulping process - Google Patents

Pulping process

Info

Publication number
ES414474A1
ES414474A1 ES414474A ES414474A ES414474A1 ES 414474 A1 ES414474 A1 ES 414474A1 ES 414474 A ES414474 A ES 414474A ES 414474 A ES414474 A ES 414474A ES 414474 A1 ES414474 A1 ES 414474A1
Authority
ES
Spain
Prior art keywords
hardwoods
pulp
pulping process
soften
chips
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
ES414474A
Other languages
Spanish (es)
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.)
OI Glass Inc
Original Assignee
Owens Illinois Inc
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 Owens Illinois Inc filed Critical Owens Illinois Inc
Publication of ES414474A1 publication Critical patent/ES414474A1/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

A method of reducing hardwoods to pulp to produce corrugated media, which comprises cooking such hardwoods with an aqueous solution containing a smaller amount of sodium hydroxide and a larger amount of sodium carbonate under weather, temperature conditions. and enough pressure to penetrate and soften the chips so that they can be mechanically defibrated into paper pulp. (Machine-translation by Google Translate, not legally binding)
ES414474A 1972-05-15 1973-05-07 Pulping process Expired ES414474A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25333172A 1972-05-15 1972-05-15

Publications (1)

Publication Number Publication Date
ES414474A1 true ES414474A1 (en) 1976-06-01

Family

ID=22959834

Family Applications (1)

Application Number Title Priority Date Filing Date
ES414474A Expired ES414474A1 (en) 1972-05-15 1973-05-07 Pulping process

Country Status (10)

Country Link
JP (2) JPS4947601A (en)
BR (1) BR7303500D0 (en)
CA (1) CA990910A (en)
DE (1) DE2320812C2 (en)
ES (1) ES414474A1 (en)
FI (1) FI55363C (en)
FR (1) FR2184608B1 (en)
GB (1) GB1425901A (en)
NO (1) NO141951C (en)
SE (1) SE404043B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5249302A (en) * 1975-10-16 1977-04-20 Hitachi Shipbuilding Eng Co Process for alkali pulping
JPS5653295A (en) * 1979-10-04 1981-05-12 Kogyo Gijutsuin Pulping method of waste rubber material
US4559103A (en) * 1982-08-05 1985-12-17 Honshu Seishi Kabushiki Kaisha Packaging paper and packaging material for packaging metallic material and method of producing the same
DE3401072C2 (en) * 1984-01-13 1986-04-10 Nukem Gmbh, 6450 Hanau Electrodynamic transducer head
RU2091529C1 (en) * 1995-11-21 1997-09-27 Грудинин Владимир Павлович Method of preparation of cooking liquid for production of fibrous intermediate product

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE252411C (en) *
US1859846A (en) * 1926-08-04 1932-05-24 Arthur M Hyde Wood pulp and process of making the same
FR716302A (en) * 1930-09-04 1931-12-18 Papeteries Navarre Wood cellulose purification process
JPS4887101A (en) * 1972-02-22 1973-11-16
GB1432245A (en) * 1972-05-01 1976-04-14 Westvaco Corp Method of pulping wood

Also Published As

Publication number Publication date
JPS4947601A (en) 1974-05-08
BR7303500D0 (en) 1974-07-18
FI55363C (en) 1979-07-10
SE404043B (en) 1978-09-18
DE2320812C2 (en) 1982-06-16
AU5452873A (en) 1974-10-17
JPS5643495A (en) 1981-04-22
GB1425901A (en) 1976-02-25
FR2184608A1 (en) 1973-12-28
CA990910A (en) 1976-06-15
FR2184608B1 (en) 1975-04-04
NO141951B (en) 1980-02-25
NO141951C (en) 1980-06-04
FI55363B (en) 1979-03-30
DE2320812A1 (en) 1973-11-29

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20100623