公开(公告)号：US06436232B1

公开(公告)日：2002-08-20

申请号：US08804181

申请日：1997-02-20

申请人： Petri Silenius ,  Markku Leskelä ,  Johan Gullichsen ,  Esa Halinen

发明人： Petri Silenius ,  Markku Leskelä ,  Johan Gullichsen ,  Esa Halinen

IPC分类号： D21H1770

CPC分类号： D21C9/004 ,  D21H17/28 ,  D21H17/65 ,  D21H17/67 ,  D21H17/675 ,  D21H17/70 ,  D21H23/14

摘要： The invention relates to a procedure for adding a filler into a pulp based on cellulose fibers, in which the pulp is fluidized and the filler is added into it. Preferably the pulp is stirred in the fluidized state while the filler is being added. The pulp is preferably at a medium consistency when the filler is being added. Preferably the filler added into the pulp is calcium hydroxide and the calcium carbonate is precipitated with carbon dioxide.

摘要翻译： 本发明涉及一种将填料添加到基于纤维素纤维的纸浆中的方法，其中纸浆被流化并将填料加入其中。 优选地，当加入填料时，浆液在流化状态下搅拌。 当加入填料时，纸浆优选为中等稠度。 优选地，添加到纸浆中的填料是氢氧化钙，碳酸钙用二氧化碳沉淀。