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ES403377A1 - Preparation of paper pulp - Google Patents

Preparation of paper pulp

Info

Publication number
ES403377A1
ES403377A1 ES403377A ES403377A ES403377A1 ES 403377 A1 ES403377 A1 ES 403377A1 ES 403377 A ES403377 A ES 403377A ES 403377 A ES403377 A ES 403377A ES 403377 A1 ES403377 A1 ES 403377A1
Authority
ES
Spain
Prior art keywords
alkali metal
weight
percent
hydroxide
preparation
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
ES403377A
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.)
Process Evaluation and Development Corp
Original Assignee
Process Evaluation and Development Corp
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 Process Evaluation and Development Corp filed Critical Process Evaluation and Development Corp
Publication of ES403377A1 publication Critical patent/ES403377A1/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
    • D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds
    • 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
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes
    • 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
    • D21C3/22—Other features of pulping processes
    • D21C3/24—Continuous processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)

Abstract

Method for the production of increased gloss cellulosic pulp from a lignocellulosic material eg, sugarcane bagasse, kernel-free, at increased pulp yield comprising digesting the material with an aqueous solution including a hydroxide of alkali metal for example in the amount of about 3.5 to about 4.5 percent by weight, characterized in that the solution has a pH of about 8.5 to about 11.5, preferably about 10.0, and consisting essentially water, from about 6 to about 7 percent by weight of alkali metal bisulfite, from about 1 to about 1.5 percent by weight of alkali metal carbonate and the alkali metal hydroxide, the percentages by weight being expressed as the corresponding alkali metal oxide, and the alkali metal being preferably sodium. (Machine-translation by Google Translate, not legally binding)
ES403377A 1971-06-01 1972-05-31 Preparation of paper pulp Expired ES403377A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US14900071A 1971-06-01 1971-06-01
US22039072A 1972-01-24 1972-01-24
US23658972A 1972-03-21 1972-03-21

Publications (1)

Publication Number Publication Date
ES403377A1 true ES403377A1 (en) 1975-04-16

Family

ID=27386772

Family Applications (1)

Application Number Title Priority Date Filing Date
ES403377A Expired ES403377A1 (en) 1971-06-01 1972-05-31 Preparation of paper pulp

Country Status (7)

Country Link
AR (1) AR194242A1 (en)
DE (1) DE2226589A1 (en)
ES (1) ES403377A1 (en)
FR (1) FR2141123A5 (en)
GB (1) GB1399736A (en)
OA (1) OA04095A (en)
PH (1) PH10197A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107130472B (en) * 2017-06-21 2018-07-20 广西师范学院 The method for preparing dustbin as raw material using sisal hemp

Also Published As

Publication number Publication date
DE2226589A1 (en) 1972-12-14
AR194242A1 (en) 1973-06-29
OA04095A (en) 1979-10-30
GB1399736A (en) 1975-07-02
FR2141123A5 (en) 1973-01-19
PH10197A (en) 1976-09-24

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