it is the health hazard of talc processing

Talc processing

1. Talc Processing Hamedgul Hamidi Supervisor : Dr Sadia

2. Outlines Introduction to Soap Stone Applications and Uses Chemical and Physical Properties Soap Stone and its Grades Areas in Pakistan Containing ores Ores Processing and Beneficiations

3. Introduction … Soapstone / Talc Stone   Chemical Compositions Soapstone is the common name for the mineral steatite. Steatite is at least 50% talc combined with other minerals, mostly magnetite. While when the Talc is pure its composition is 31.88 % of MgO , 63.33% of SiO 2 and 4.75 % of H 2 O World Reserve of Talc Stone Country Metric Tons Country Metric Tons Country Metric Tons China 23,00,000 Korea 14,000 France 4,20,00 USA 1,40,000 India 4,000 etc Brazile 5,50,000 Finland 4,40,00 Japan 1,00,000 Pakistan 600

4. Talc Application and Uses Daily Life Uses Beauty and Makeup Kits Toilet Soap manufacturing Cosmetic industries in baby talc powder Sinks masonry heaters flooring Sculpture kitchen countertops wall tile  Detergent manufacturing Industrial Uses   Dal mills (Pulses polishing) Textile Printing Ink Rubber industry Electric Cables Filler raw material in many chemical industries.  lubricating dusting powder

5. Chemical And Physical Properties Hegman Grind: 3- 6 pH 8.4-9.4 Density (g/cm3): 2.7- 2.85 Crystallography Lamellar Specific Gravity: 2.6- 2.85 G.E. Brightness 85- 97 Oil Absorption: 30-55 Refractive Index: 1.59- 1.60 Solubility in H2O: Insoluble Hardness @Mohs 20°C 1.0- 1.5 Appearance: White Powder, Grey, Green etc Odor None

6. Common Talc Ore Types

7. Area in Pakistan Para Chinar Sherwan area Hazara District Shangla Par (Swat) Jamrud Khuram Agency Landi Kotal Zoab Balochistan Nauseri in AJK Chilas Gilgat Balistan

8. KPK … Para Chinar (Border Area KPK and Afghanistan) There is a huge amount of Talc available in Parachinar survey is not yet completed Parachinar is introduced as Super Asia Talc Para Chinar Sherwan area, Hazara District Elements E-942 E-943 White E-944 Green SiO 2 61.23 61.58 61.10 TiO 2 0.01 0.01 0.01 Al 2 O 3 0.21 0.20 0.11 Fe 2 O 3 0.16 0.05 1.44 K 2 O 0.03 0.06 0.03 MgO 32.69 32.94 31.24 CaO 0.10 0.09 0.37 Na 2 O 0.48 0.75 0.61 H 2 O 5.02 4.92 4.75 From Dharadhar , Parachinar KPK Khuram Agency Talc Deposits located in Khuram Agency are of good quality matching to international standard i.e brightness ranges from 92% to 98 % Talc Deposits located in Sherwan Hazara districal beneficiation to meet internatiolan market.

9. Processing Dry Processing Crushing & grinding Gravity & Magnetic Separation Wet Processing Flotation

10. Talc Beneficiation and up gradations Crushers Jaw Crushers Eccentric Crushers

11. Talc Beneficiation and up gradations Grinding Grinding Mills Ball Mills

12. Beneficiation Gravity Separation Spiral Separation Wifi Tables

13. Flow Chart

14. Hazard & Safety Issues Talc waste is not reactive, flammable or biodegradable.

15. Environment During processing its dust should be controlled . As Talc is mostly linked with pulmonary diseases like Lung Cancer, Skin Cancer and also Ovarian Cancer. Talc is sometimes coupled with Asbestos Minerals .Talc Products containing asbestos fibers are fatal to human body.

16. Other Health Problems Other health issues are: Inhalation : Inhalation of large amounts of this fine dust may lead to pulmonary edema . May cause irritation to the upper respiratory tract. Tickling cough is a common symptom. Ingestion: Large doses may cause gastric irritation, nausea, and diarrhea . Skin Contact: May cause irritation . Eye Contact: May cause redness or irritation of eyes . Chronic Exposure: Prolonged inhalation of dust is associated with respiratory effects. Long term excessive exposures to talc may cause Talcosis , a pulmonary fibrosis which may in turn lead to severe and permanent damage to the lung. Crystalline Silica: Chronic inhalation of dust can produce Silicosis , a disease of the lungs. Chronic inhalation of crystalline silica is a lung cancer hazard .

17. Thank You