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Minerals:
NW products are prepared on the basis of two main criteria: granulometry and physical specifications.
– 1/ Granulometry, the first process applied on run of mine talc, is screening to separate lumps from fines. These two fractions will have a different process downstream.
– Lumps will be cleaned and graded through hand-sorting,
– Fines will have to undergo specific process which includes several screening phases with intermediary stages where fines and grains are individualized to be cleaned.
– 2/ Specifications, settled as per table below, are assessed and enforced by NW QC team with inhouse lab equipment.
Range of Products with Specifications
| S.No | Grades | Lumps | Grains | Fines | Y | LOI | b.v |
| 1 | >94 |  |
>94 | <6.0 | <0.5 | ||
| 2 | >93 | |
|
|
>93 | <7.0 | <0.7 |
| 3 | >92 | |
>92 | <6.0 | <0.5 | ||
| 4 | >91 | |
|
|
>91 | <8.5 | <1.7 |
| 5 | >90 | |
|
>90 | <8.5 | <1.7 | |
| 6 | >89 | |
|
>89 | <8.5 | <1.7 | |
| 7 | >88 | |
>88 | <20.0 | <2.0 |
*Y – Instrumental (KONICA MINOLTA CM600D) hunter whiteness using primary illuminant D65.
*LOI – loss on ignition @1050 ºC (2 hours) based on Scott (Gravimetric method).
*b.v – percentage of tint
*To be noted that the above products can be sold separately or mixed at customer’s request
- Shipped in container (in bulk form or in jumbo bags) or in bulk vessels
- Shipping port, port Qasim
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