Metso Paper Inc.

Kemira Oyj

Aalto University Foundation

Aalto University Foundation Sr

Metso Paper Pori Oy

Mikael Svedman

Kjell Forslund

Kari Vanhatalo

Jukka Jäkärä

Olli Dahl

Kari Parviainen

Jukka Vaistomaa

Bob Horacek

Hannu Haaslahti

Jukka Jakara

Toni Vakiparta

Petteri Kotonen

Paivi Uusitalo

The present invention relates to a process for producing microcellulose comprising subjecting fibrous cellulosic material to acid hydrolysis at a temperature of at least 40&#xb0; C. and at a consistency of at least 8% on dry weight of the cellulose, wherein the amount of added acid is from 0.2 to 2%, preferably from 0.5 to 1.5% on dry weight of the cellulose.

Method to produce microcellulose

The present invention relates to a process for deinking waste paper comprising treating the waste paper with a peroxide compound in an aqueous alkaline medium in the presence of a first polymer (A) comprising a Ca-binding polymer in the form of a polycarboxylate polymer and a second polymer (B) comprising a poly-alfa-hydroxyacrylic acid or a salt thereof or the corresponding polylactone, said process additionally comprising treating the waste paper with at least one non-ionic surfactant or with at least one combination of a non-ionic surfactant and a fatty acid or a salt thereof to promote ink detachment and/or ink removal.

Process for deinking waste paper

Containers for collecting and discharging particulate lignocellulosic material are disclosed, including a cylindrical upper portion, a lower portion tapering towards a bottom elongated space, an exit pipe below the bottom, a pair of parallel screws mounted on parallel shafts in the elongated space in a common horizontal plane for feeding the particulate lignocellulosic material towards the exit pipe, a pair of distributors disposed on the parallel screws above the exit pipe comprising radial discs, and a pump below the exit pipe for transporting the particulate lignocellulosic material to a subsequent step.

Container with discharging device

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Vaasa, Finland

Mikael Svedman