Method of making mechanical and chemi-mechanical papermaking pulp CA 1320067 C
1993 (English)Patent (Other (popular science, discussion, etc.))
The invention relates to a method of manufacturing mechanical and chemi-mechanical papermaking pulp by disintegrating and beating wood material in at least two steps. The material is coarse-disintegrated in a first step at a concentration exceeding 20%, acid groups in the wood material are neutralized, the mater-ial is diluted to a concentration of 1-10% and beaten in one or several steps. Under these conditions the total energy consump-tion is substantially reduced without reducing the yield and deteriorating the properties of the pulp.
Place, publisher, year, edition, pages
mechanical pulping, chemimechanical pulping, low consistency refining, high consistency refining
Paper, Pulp and Fiber Technology
IdentifiersURN: urn:nbn:se:miun:diva-29424OAI: oai:DiVA.org:miun-29424DiVA: diva2:1051898
CA CA 1320067 C (1993-07-13)