Imperial Chemical Industries Limited

William Malcolm Wood

Margaret L Steel

Philip Norton-Berry

A process for obtaining a substantially dry particulate solid in the form of particles with a narrow particle size distribution which comprises atomising a feedstock comprising a solution or dispersion of the solid in a liquid medium into droplets with a narrow size distribution and a volume median diameter from 100 to 250 micrometers in a spray dryer whereby the droplets are converted into the dry particulate solid within the spray dryer.

Spray drying process with spinning atomizer

A smoking material comprising smoke-producing fuel, fortifying nicotine, calcium and/or magnesium carbonate as incombustible filler, at least one water-soluble salt selected to inhibit dissolution of the calcium and/or magnesium carbonate in water, and a phosphate buffer consisting of an acid salt of orthophosphoric acid or of a polyphosphoric acid to maintain the slurry pH at less than 6.

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Manchester, United Kingdom

William Malcolm Wood