Processing of Talc

The mineral first undergoes primary crushing and screening through a 12 mm sieve, drying in a cylindrical drier and selection by a Raymond selector to exclude particles above a set hardness, before finally milling in close circuit to a 95.5 %, minus 300 mesh product. Some of the material is micronized to a size of 30, 20 and 10 microns.

In India processing technology and facilities are adequate to produce high quality talc/steatite. There are about sixty soap stone grinding units in Udaipur. These are generally Roller Mills and Pulverizers having rated capacity ranging fom 10 to 30 tonnes per day. All the equipment and accessories for grinding units are designed and fabricated in Udaipur itself. However, there is scope for improving the existing techniques by modern methods of classification and micronizing and grading thereof. Presently the minimum particle size of talc produced indegenously is limited to 10 microns. It is intended to reduce the particle size further by introducing jet mill and Atomiser for sophisticated applications.

Nalwaya Industries have a net work of pulverising units capable of producing Talc powder of 20 micron particle size and total grinding capacity is 5000 MT per month. The main processing unit are located at Sundarwas, Mewar Industrial Area (Udaipur), Sabla (Dungarpur) and Ratlam (MP).

Nalwaya Talc is largely used in cosmetic, paint, rubber, pharmaceuticals, insulations, pesticides, fertilizers roofing etc. Special Features of Nalwaya Talc makes this product very suitable for use in cosmetic industry i.e. for the manufacture of soap, talcum powder and other personal care products.

2. Crystal structure of this talc is platy and marked by the absence of Asbestos. The platy structure contributes to slippery and greasy feel which is considered important for use in talcum powder.

3. This talc mineral is also marked by the absence of Toxic substances such as Arsenic and lead which make it harmless in the manufacture of Pharmaceuticals.

4. This Talc does not contain free Tremolite or Quartz which are considered undesirable impurities in manufacture of cosmetics and pharmaceuticals.

5. Free Iron content in this talc is very negligible i.e. generally less than 100 ppm which is yet anotder desirable characteristics.

6. The texture of this talc mineral is such that the high degree of Bulk Density can be achieved which is necessary for easy filling of containers in Talcum powder manufacture. Also the fragrance retaining quality of our Talc mineral is very good.