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Method of making mechanical and chemi-mechanical papermaking pulp [Framställning av mekanisk och kemimekanisk massa i två steg]
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- Engstrand, Per, 1955- (author)
- Mittuniversitetet,Avdelningen för kemiteknik,FSCN - High Yield Pulping Research Profile
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- Pettersson, Rune, 1955- (author)
- STFI
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- Htun, Myat (author)
- Mittuniversitetet,Avdelningen för kemiteknik,High Yield Pulping Research Profile
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- (creator_code:org_t)
- 1989
- English.
- Patent (pop. science, debate, etc.)
Abstract
Subject headings
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- The invention relates to a method of manufacturing mechanical and chemi-mechanical papermaking pulp with low energy input by disintegrating and beating wood material in at least two steps. According to the invention, the material is coarse-disintegrated in a first step at a concentration exceeding 20 %, acid groups in the wood material are neutralized, the material is diluted to a concentration of 1-10 % and beaten in one or several steps.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
Keyword
- mechanical pulping
- chemimechanical pulping
- low consistency refining
- high consistency refining
Publication and Content Type
- pop (subject category)
- pat (subject category)
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- ENGINEERING AND TECHNOLOGY
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- Mid Sweden University
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