B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 39/16 (2006.01)
Patent
CA 2529078
A filter element which is not causative of environmental pollution when discarded, can be easily produced, has improved pressure loss, and can be produced at a reduced cost. The filter element is characterized by comprising: a filter element base which comprises a permeable porous molding obtained from a synthetic resin powder, nonwoven fabric, or felt through heating/sintering; and fine particles of ultrahigh-molecular polyethylene which have been packed in surface pores of the base, have an average molecular weight of 3,000,000 to 11,000,000 and a bulk specific gravity of 0.15 to 0.29, are aggregates of primary particles, and have voids of 1 to 5 ~m at joints between primary particles.
L'invention concerne un élément filtrant, qui n'est pas responsable de la pollution environnementale une fois éliminé ; on peut facilement le produire, il présente une meilleure chute de pression, et on peut le produire à moindre coût. L'élément filtrant comporte une base d'élément filtrant comprenant un moulage poreux perméable obtenu à partir d'une poudre de résine synthétique, de non-tissé ou de feutre par chauffage/frittage ; et de fines particules de polyéthylène moléculaire ultra-élevé comprimées dans les pores superficiels de ladite base, qui ont un poids moléculaire moyen allant de 3 000 000 à 11 000 000 et une densité apparente de 0,15 à 0,29, qui sont des agrégats de particules primaires et qui présentent des vides de 1 à 5 µm aux joints entre ces particules primaires.
Agawa Setsuo
Ichihara Yoshinori
Nakanishi Koji
Nittetsu Mining Co. Ltd.
Riches Mckenzie & Herbert Llp
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