Fp-pigments Oy

Jarmo Tolonen

Mikko Maijala

Roope Maijala

Björn Lax

Sami Haakana

Jorma Viitanen

Aarni Esko

Eija Pekkala

Teuvo Tjurin

Jeuvo Tjurin

Bjoern Lax

Ilkka Tamminen

Composition of precipitated calcium carbonate and method of producing the same and the uses of the composition. The composition comprises a plurality of essentially spherical granules having an average diameter of 1-50 um formed from primary precipitated calcium carbonate particles having an average diameter of 30 to 60 nm, capable of liberating at least a part of the primary particles by deagglomeration in aqueous suspension. The present compositions can be used for modifying binders of paints, printing inks, plastics, adhesives, sealants and surface sizes and pulp sizes. The invention further concerns a method for storing of precipitated calcium carbonate particles having an average diameter in the nanometer range.

Composition of precipitated calcium carbonate, method of producing the same and the uses thereof

A method and apparatus for producing a calcium carbonate product formed of small &#x3c;100 &#x3bc;m sized separate calcium carbonate particles. Calcium hydroxide is fed through a disintegration and spraying apparatus (), operating on the principle of a pin mill, into a gas which contains carbon dioxide for precipitating calcium carbonate particles and which is inside a precipitation reactor (). The temperature in the precipitation reactor is maintained at &#x3c;65&#xb0; C.

Method and apparatus for manufacturing of a calcium carbonate product, the product and its use

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Valkeakoski, Finland

Jarmo Tolonen