GB1197450A - Method for the Treatment of Lignocellulosic Materials - Google Patents

Method for the Treatment of Lignocellulosic Materials

Info

Publication number
GB1197450A
GB1197450A GB3407267A GB3407267A GB1197450A GB 1197450 A GB1197450 A GB 1197450A GB 3407267 A GB3407267 A GB 3407267A GB 3407267 A GB3407267 A GB 3407267A GB 1197450 A GB1197450 A GB 1197450A
Authority
GB
United Kingdom
Prior art keywords
sodium
chloride
hydrosulphite
under
chamber
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
GB3407267A
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.)
Anglo Paper Products Ltd
Original Assignee
Anglo Paper Products Ltd
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 Anglo Paper Products Ltd filed Critical Anglo Paper Products Ltd
Publication of GB1197450A publication Critical patent/GB1197450A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/30—Disc mills

Landscapes

  • Paper (AREA)

Abstract

1,197,450. Paper pulp. ANGLO PAPER PRODUCTS Ltd. 25 July, 1967 [1 Aug., 1966] No. 34072/67. Headings D2A and D2W. [Also in Division B2] Lignocellulosic material is defined by feeding it into a closed chamber and abrading it by means of a disc refiner under a power input of at least thirty horsepower-days per ton in the presence of water and under a pressure of 20 to 40 psig. The atmosphere in the chamber is intert to the material, and may be of steam or air. chemicals may also be present, e.g. one or more of sodium hydroxide, sodium carbonate, sodium sulphate, sodium sulphite, sodium bisulphite, sodium hydrosulphite, tetrasodium pyrophosphate sodium hexametaphosphate, sodium tripolyphosphate, sodium chloride, calcium chloride, magnesium chloride, zinc hydrosulphite and the pentasodium salt of diethylene-triaminepentacetic acid.
GB3407267A 1966-08-01 1967-07-25 Method for the Treatment of Lignocellulosic Materials Expired GB1197450A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56935166A 1966-08-01 1966-08-01

Publications (1)

Publication Number Publication Date
GB1197450A true GB1197450A (en) 1970-07-01

Family

ID=24275072

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3407267A Expired GB1197450A (en) 1966-08-01 1967-07-25 Method for the Treatment of Lignocellulosic Materials

Country Status (3)

Country Link
CA (1) CA922950A (en)
GB (1) GB1197450A (en)
SE (1) SE336952B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2827038A1 (en) * 1978-02-16 1979-08-23 Tampella Oy Ab METHOD AND SANDING MACHINE FOR REMOVING SANDING WOOD WHEN SANDING WOOD UNDER PRESSURE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2827038A1 (en) * 1978-02-16 1979-08-23 Tampella Oy Ab METHOD AND SANDING MACHINE FOR REMOVING SANDING WOOD WHEN SANDING WOOD UNDER PRESSURE

Also Published As

Publication number Publication date
CA922950A (en) 1973-03-20
SE336952B (en) 1971-07-19

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PE20 Patent expired after termination of 20 years