公开(公告)号：WO2004112956A1

公开(公告)日：2004-12-29

申请号：PCT/FI2004/000379

申请日：2004-06-22

Applicant: AHLSTROM TAMPERE OY ,  AHLSTROM CORPORATION ,  VALTION TEKNILLINEN TUTKIMUSKESKUS ,  CHRISTIANSEN, Virve ,  HEINONEN, Kimmo ,  PIITTALA, Raimo ,  TAIPALE, Aimo

Inventor： CHRISTIANSEN, Virve ,  HEINONEN, Kimmo ,  PIITTALA, Raimo ,  TAIPALE, Aimo

IPC: B01J20/28

CPC classification number: B01J20/28028 ,  B01J20/28004 ,  B01J20/28097 ,  B01J20/3204 ,  B01J20/321 ,  B01J20/3212 ,  B01J20/3236 ,  B01J20/3248

Abstract: The filter material according to the present invention comprises a filter matrix including at least one fiber material or several fiber materials characterized in that at least one chemisorbent in particle form is added to the filter matrix essentially by absorbing it into a porous material whereby a substantial portion of the particles are attached to the filter matrix.

Abstract translation: 根据本发明的过滤材料包括包含至少一种纤维材料或几种纤维材料的过滤器基体，其特征在于，至少一种颗粒形式的化学吸附剂基本上通过将其吸收到多孔材料中而被添加到过滤器基体中， 的颗粒附着到过滤器基体上。

公开(公告)号：WO0220126A3

公开(公告)日：2002-05-30

申请号：PCT/FI0100761

申请日：2001-09-04

Applicant: AHLSTROM RES AND COMPETENCE CT ,  GEORGE JONATHAN ,  GROSSO ANDREA ,  PIITTALA RAIMO ,  ROEKMAN KAY ,  BACK KAJ

Inventor： GEORGE JONATHAN ,  GROSSO ANDREA ,  PIITTALA RAIMO ,  ROEKMAN KAY ,  BACK KAJ

IPC: B01D39/16 ,  B01D39/18 ,  B01D39/20 ,  B01D39/08

CPC classification number: B01D39/2058 ,  B01D39/1615 ,  B01D39/1623 ,  B01D39/18 ,  B01D39/2017 ,  B01D39/2065 ,  B01D2239/0407 ,  B01D2239/0618 ,  B01D2239/065 ,  B01D2239/10 ,  B01D2239/1258

Abstract: A non-woven filter material of fibrous material containing a reactive particulate material is made using the foam process. First and second fibrous webs are made using the foam process, and a foam slurry including reactive particulate material is provided between the webs so as to provide a composite web. Foam and liquid are withdrawn from the composite web and then the composite web is dried so as to produce a final non-woven filter material with reactive material having substantially optimum reactivity (that is the reactive material loses a minimum amount of reactivity during the web production process). The webs and slurry may be made using substantially pure water, and the particulate part of the reactive material is mixed with the foam no more than about ten seconds before the foam is withdrawn from the composite web. Activated carbon and titanium dioxide are two particularly desirable reactive particulates; the reactive loading is at least 0.01 g/cm , and the air permeability of the final filter material is at least 3000 liters per square meter per second.

Abstract translation: 使用泡沫工艺制造含有反应性颗粒材料的纤维材料的非织造过滤材料。 使用泡沫工艺制造第一和第二纤维网，并且在网之间提供包含反应性颗粒材料的泡沫浆料，以提供复合网。 将泡沫和液体从复合纤维网中取出，然后干燥复合纤维网，以便产生具有基本上最佳反应性的反应性材料的最终非织造过滤材料（即反应性材料在幅材生产期间失去最小量的反应性 处理）。 纤维网和浆料可以使用基本上纯的水制成，并且将反应性材料的颗粒部分与泡沫混合不超过约10秒钟，然后将泡沫从复合纤维网中取出。 活性炭和二氧化钛是两种特别理想的反应性颗粒; 反应负荷至少为0.01g / cm 3，最终过滤材料的透气度至少为3000升/平方米/秒。