Kemira Oyj

Kemira Chemicals Oy

Taminco Finland

Taminco Finland Oy

Jouko Arvola

Timo H Nissinen

Timo Härmä

Eero Aitta

Pentti Pekonen

Lauri Määttä

Marjo Luoma

Eero Hätälä

Ilkka Pollari

Juha Kangastalo

Pekka Johnson

Timo Harma

Eero Hatala

Timo Nissinen

The invention relates to a method for preparing a reducing agent composition, which is used in the selective catalytic reduction of nitrogen oxides and which contains from 20 to 40% by weight of urea, from 20 to 40% by weight of ammonium formate, and water. The composition is prepared by adding urea to the aqueous solution of ammonium formate that is prepared in situ, and by preparing the aqueous solution of ammonium formate using, as starting materials, a source of ammonium, a source of formate, and water.

Method for the preparation of a reducing agent composition

The invention relates to a solid antimicrobial product suitable for the preservation of an organic material and for combating of detrimental microorganisms, as well as for pH control. The product contains, absorbed into a support a concentrated formic acid partly neutralized with gaseous ammonia, the water content of the formic acid being below 2% by weight. In addition, the invention comprises a method for preparing the product.

Solid formic acid product

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Oulu, Finland

Jouko Arvola