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Dive into the research topics where Pirkko Virta is active.

Publication


Featured researches published by Pirkko Virta.


Archive | 1990

PROCESS FOR THE PREPARATION OF HYDROGEN PEROXIDE (I)

Teuvo Maunula; Eva-Liisa Mustonen; Ilkka Turunen; Pirkko Virta


Archive | 1984

Paper-making method and a combination of ingredients to be used in it

Olli Juhani Jokinen; Lars Harald Petander; Pirkko Virta


Archive | 1993

Catalyst and process for purifying diesel exhaust gases

Matti Kivioja; Sointu Ravola; Thomas Slotte; Teuvo Maunula; Matti H ark onen; Pirkko Virta


Archive | 1994

Use of a super alloy as a substrate for catalysts

Marjo Luoma; Keijo Torkkell; Reijo Lylykangas; Pirkko Virta


Archive | 1990

Procede pour la preparation de peroxyde d'hydrogene ii

Teuvo Maunula; Eva-Liisa Mustonen; Ilkka Turunen; Pirkko Virta


Archive | 1990

Production of hydrogen peroxide by anthraquinone process

Teuvo Maunula; Eva-Liisa Mustonen; Ilkka Turunen; Pirkko Virta


Archive | 1993

CATALYST FOR PURIFYING DIESEL EXHAUST GASES AND METHOD FOR ITS MANUFACTURE

Matti Härkönen; Matti Kivioja; Teuvo Maunula; Sointu Ravola; Thomas Slotte; Pirkko Virta


Archive | 1993

Katalysator zur reinigung von dieselabgasen und verfahren zur dessen herstellung A catalyst for purification of diesel exhaust gases and process for its preparation

Matti Kivioja; Sointu Ravola; Thomas Slotte; Teuvo Maunula; Matti Haerkoenen; Pirkko Virta


Archive | 1990

Verfahren zur herstellung von wasserstoffperoxid A process for the production of hydrogen peroxide

Teuvo Manula; Eva-Liisa Mustonen; Ilkka Turunen; Pirkko Virta


Archive | 1990

Production of hydrogen peroxide by in which reaction and mixing are alternately performed

Teuvo Maunula; Eva-Liisa Mustonen; Ilkka Turunen; Pirkko Virta

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