US1478614A - Process for digesting wood pulp - Google Patents

Process for digesting wood pulp Download PDF

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Publication number
US1478614A
US1478614A US280657A US28065719A US1478614A US 1478614 A US1478614 A US 1478614A US 280657 A US280657 A US 280657A US 28065719 A US28065719 A US 28065719A US 1478614 A US1478614 A US 1478614A
Authority
US
United States
Prior art keywords
wood pulp
digesting wood
digesting
pulp
wood
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 - Lifetime
Application number
US280657A
Inventor
Morterud Einar
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.)
CELLULOSEPATENTER AS
Original Assignee
CELLULOSEPATENTER AS
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 CELLULOSEPATENTER AS filed Critical CELLULOSEPATENTER AS
Priority to US280657A priority Critical patent/US1478614A/en
Application granted granted Critical
Publication of US1478614A publication Critical patent/US1478614A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
    • D21C3/08—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites calcium bisulfite

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Description

US280657A 1919-03-04 1919-03-04 Process for digesting wood pulp Expired - Lifetime US1478614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US280657A US1478614A (en) 1919-03-04 1919-03-04 Process for digesting wood pulp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US280657A US1478614A (en) 1919-03-04 1919-03-04 Process for digesting wood pulp

Publications (1)

Publication Number Publication Date
US1478614A true US1478614A (en) 1923-12-25

Family

ID=23074034

Family Applications (1)

Application Number Title Priority Date Filing Date
US280657A Expired - Lifetime US1478614A (en) 1919-03-04 1919-03-04 Process for digesting wood pulp

Country Status (1)

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US (1) US1478614A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474862A (en) * 1942-10-15 1949-07-05 Kamyr Ab Process and apparatus for continuous digestion of fibrous materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474862A (en) * 1942-10-15 1949-07-05 Kamyr Ab Process and apparatus for continuous digestion of fibrous materials

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