FI914397A - REFERENCE TO A MECHANICAL REFINING MECHANISM - Google Patents

REFERENCE TO A MECHANICAL REFINING MECHANISM Download PDF

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Publication number
FI914397A
FI914397A FI914397A FI914397A FI914397A FI 914397 A FI914397 A FI 914397A FI 914397 A FI914397 A FI 914397A FI 914397 A FI914397 A FI 914397A FI 914397 A FI914397 A FI 914397A
Authority
FI
Finland
Prior art keywords
raw material
ground
mechanical refining
refining mechanism
beating phase
Prior art date
Application number
FI914397A
Other languages
Finnish (fi)
Other versions
FI89610B (en
FI914397A0 (en
FI89610C (en
Inventor
Jan Sundholm
Bo Mannstroem
Annikki Heikkurinen
Airi Saerkilahti
Original Assignee
Keskuslaboratorio
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 Keskuslaboratorio filed Critical Keskuslaboratorio
Priority to FI914397A priority Critical patent/FI89610C/en
Publication of FI914397A0 publication Critical patent/FI914397A0/en
Publication of FI914397A publication Critical patent/FI914397A/en
Publication of FI89610B publication Critical patent/FI89610B/en
Application granted granted Critical
Publication of FI89610C publication Critical patent/FI89610C/en

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  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

Method for production of mechanical groundwood pulp from cellulose-containing raw material, like wood chips, in which method the raw material is ground in at least two successive phases in multiphase fashion. The method includes a first beating phase in which the raw material is ground with high intensity and at high temperature, and a second beating phase in which the raw material is ground at low intensity and lower temperature than in the first beating phase.
FI914397A 1991-09-18 1991-09-18 REFERENCE TO A MECHANICAL REFINING MECHANISM FI89610C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI914397A FI89610C (en) 1991-09-18 1991-09-18 REFERENCE TO A MECHANICAL REFINING MECHANISM

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI914397A FI89610C (en) 1991-09-18 1991-09-18 REFERENCE TO A MECHANICAL REFINING MECHANISM
FI914397 1991-09-18

Publications (4)

Publication Number Publication Date
FI914397A0 FI914397A0 (en) 1991-09-18
FI914397A true FI914397A (en) 1993-03-19
FI89610B FI89610B (en) 1993-07-15
FI89610C FI89610C (en) 1993-10-25

Family

ID=8533153

Family Applications (1)

Application Number Title Priority Date Filing Date
FI914397A FI89610C (en) 1991-09-18 1991-09-18 REFERENCE TO A MECHANICAL REFINING MECHANISM

Country Status (1)

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FI (1) FI89610C (en)

Also Published As

Publication number Publication date
FI89610B (en) 1993-07-15
FI914397A0 (en) 1991-09-18
FI89610C (en) 1993-10-25

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Owner name: UPM-KYMMENE CORPORATION

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