Slack wax is a mixture of oil and wax , a petroleum product , It is one of the products of refineries which is mixture of paraffin wax and oil , from petroleum crude oil. oil content can range from 5% to 30%.During producing the feedstock goes through solvent extracting procedure to remove aromatics and the final product is Raffinate. Raffinate is then diluted with solvent like methyl-ethyl ketone (MEK) to decrease its viscosity to improve low-temperature filterability. The diluted oil is then chilled to -10°C to -20°C. Wax crystals will be formed and extracted by filtration. And the extracted wax is called Slack Wax.
It is the raw material of paraffin wax , yellow or brown color , it is processed by pressing to decrease the oil content and discoloring by whitening powders to produce paraffin wax .In past years it considered as waste products of the refineries and they paid to get rid of this product but now it is so useful that most of the refineries slack wax is booked and purchased long time before producing.
Slack wax is the crude wax produced by chilling and solvent filter-pressing wax distillate it can be heavy or light grade and differernt oil contents determines the quality.
Heavy slack wax melting and congealing point is more than light grade , oil content can be 7% , 10% , 15% , 15%.Light slack wax color is lighter than heavy grade , melting point is 55-57 C which can be an advantage of this grade of slack wax
Slack Wax is used mostly in producing different grades of paraffin wax which is the raw material of Candle so the final product of slack wax can be known as candle also it is used as blending components or waterproofing in the manufacture of various industrial products such as wax emulsions, construction board, matches, cable filing compound ,rust protective products and moisture vapor barriers , polishes, inks, carbon paper and externally can be applied as good dust suppressants or controlled-release agents for various chemical and fertilizers.
Packing can be new or conditioned 180 kg drums, Iso tank or flexi tanks also possible with higher cost . in each 20 foot container 110 drums of slack wax can be loaded and in flexi and Iso tanks 20-22 MT will be loaded .
In winter time jumbo bags with 1000 kg capacity , also the small bags equal to 25 kg can be used as the packing of the slack wax specially when the oil content is not more than 10%.
flash point c
Viscosity @ 100 ˚C