The agreement includes the promotion and distribution of Huber's various grades of specialty alumina trihydrate
, barium sulfate, calcium carbonate, kaolin clay, silica and silicate products for the coating, ink, adhesive, construction products and thermoplastics industries.
Gains will be concentrated in brominated and phosphorus compounds and in more specialized antimony oxide and magnesium hydroxide formulations, while alumina trihydrate
(the largest volume product) records less rapid growth.
Terreon is a modified acrylic, composed of alumina trihydrate
, and other fillers.
Alcan's Port-Alfred harbour facilities and the Roberval-Saguenay railway services facilitate the transportation of bauxite to Vaudreuil where grinding and milling followed by chemical digestion, decantation, filtration and precipitation will enable the extraction of alumina trihydrate
from bauxite, This is followed by calcination: first, the alumina trihydrate
is dried so as to remove free water; second, dehydration at 600 [degrees] C breaks up the water molecules which would still be chemically bound to alumina; finally, recrystallization at 1000 [degrees] C enables the transformation of the dehydrated alumina into a crystalline form which is better suited for electrolysis.
In this study, the DSC technique was also employed to investigate the curing reaction of alumina trihydrate
reinforced allylester prepolymers with dicumyl peroxide as curing agent.
The acquisition includes Martinal precipitated and ground alumina trihydrate
(ATH) and Magnifin premium precipitated magnesium hydroxide (MHD).
HEM has been a supplier of flame retardants and smoke suppressants for more than 30 years and produces value-added alumina trihydrate
, magnesium hydroxide, molybdate compounds and nitrogen and phosphorus products for a range of end-use applications, including reinforced polyester molding and pultrusion, engineering thermoplastics, roofing, silicone rubber, wire and cable, coatings and carpet backing.
Char formation is also improved over alumina trihydrate
Huber Engineered Materials (HEM) is renaming its Alumina Trihydrate
(ATH) business unit Fire Retardant Additives.
The synergistic effect of nanoclay, typically derived from smectite or montmorillonite, on alumina trihydrate
(ATH) can increase the FR properties of ATH and result in a decreased loading of the material, which improves processability.
Overall, the most important flame retardant chemicals used in the US are alumina trihydrate
(ATH) and brominated compounds.