Dangi Mining Pvt.Ltd Sector 11, Surguja, Rajasthan

We are one of the largest Talc Manufacturers in the country. Talc is an important industrial mineral. Talc Mineral is an important filler material for paints, rubber, insecticides, cosmetics, plastics, paper, ceramic and pharma. Talc Powder is Very fine white to grayish white odorless tasteless powder, insoluble in water but slightly soluble in dilute acids. Natural Talc show low abrasion and is remarkable for color consistency and creep as well as heat resistance. In addition to this, we are also counted among the prime Talc Suppliers in India. Industrial Applications Talc is one of the most important industrial minerals and is the most common mineral for daily use as a body and face powder. Talcum Powder, the name derived from the mineral itself, is used in most urban homes the world over. The invention of perfumed talcum powder has been a contributing factor in the growth of modern fashions in cosmetics. The use of talc was known to civilisations in antiquity. The ancient craftsmen of the Mohenjodaro and Harappa civilisation, (in Sind, now in Pakistan), about 5000 years ago, exercised their skill on steatite, engraving their seals with representations of animals and mythological signs, before subjecting the carving to heat to acquire hard, white lustrous, enamelled surfaces. Small sculptures, ornate bosses and vessels were also made from the mineral during those early times. Pulverized talc has wide industrial applications as filler in rubber, textile, plastic, linoleum, asbestos products, polishes and soaps; as a loading agent for paper of all kinds; as a carrier of insecticidal and pesticidal dusts and for coating calcium ammonium fertiliser. Most of the rubber manufacturers use talc powder as a lubricant to prevent ungalvanized rubber goods from sticking. The purer variety of steatite after calcination, industrially called 'Lava' is used in the manufacture of low loss ceramic materials required for high frequency insulations in all kinds of radio, television and related instruments. Bricks made out of crushed steatite bonded by sodium silicate are used for ssthe manufacture of furnaces in which argentiferous lead is softened before desilverising. Paper industry accounts for about 50% of the total consumption, in the domestic industry, 15% is shared by the insecticide and pesticide industries and only 3% by talcum powder manufacturers. The remaining quantity is consumed in textile, ceramics, paints, rubber, foundry facing and other industries. Paper Talc both in pulverized and brick forms, are used in this industry. Pulverized material of 200-300 BSS sieve is required as filler. It is used in the same way as china clay, that is, the talc powder is mixed with pulp before making into paper. A number of paper manufacturers are changing over from the use of china clay to French chalk as filler and loading material. The brightness in talc is 85 to 88º as compared to 75º in china clay. Since 1960, the consumption of talc in the paper industry has greatly increased. Paper industry requires talc powder, known as French chalk, of pure white quality. It should be free from gritty material. It should have low CaCO3 content, not exceeding 4%; also FeO should not be more stha 2%. Off-colour variety of talc free from grit is used for brown, roofing or inferior type of paper. Soapstone bricks are used for lining pulp tanks in the paper industry. Textiles Textile industry also prefers talc powder free from grit and colouration, which is used both for loading and bleaching certain types of cotton goods. Inferior grades are used in back filling textiles. Cosmetics In the manufacture of body and face powder, finely pulverized talc of very high purity is required. The material is generally reduced to fine particles by micronising. Cosmetics are prepared with a base of talc to which are added covering agents like pigments and adhesives, starches and perfumes. A common adhesive is zinc stearate. It is now being fast substituted by lithium stearate. In the manufacture of dentrifices some quantity of talc is used, here as a polishing agent. Dentrifices are prepared by mixing suitable proportions of polishing agents like talc, precipitated limestone, kaolin, calcium sulphate, calcium phosphate with gum, glycerin, soap and other chemical ingredients. The pharmaceutical industry requires talc containing less than 0.1% FeO. Natural material of such purity is generally not found and pharmaceutical talc is preferred by passing the high purity powdered talc over a magnetic separator to reduce the iron content. Rubber In rubber industry talc is used for two purposes, one to prevent rubber moulds from sticking and the other as compunding material in the preparation of certain types of hard rubber. The consumption of talc for the latter use is small. Generally grade II to III are used in the rubber industry. Talc should be of fine mesh all passing through 200 mesh. Ceramics Talc is increasingly being used in the manufacture of artwares, jars, wall and floor tiles. It serves as a non-plastic ceramic material. The addition of talc in suitable proportions in the body of mixtures for porcelain, jars etc. prevents the crazing (cracking) effect on the glazes. The proportion of talc in the ceramic body may go upto 80%. It is valued for its refractoriness and stability, as well as extremely low shrinkage at high temperature. Talc converts into clino-enstatite at about 1300º C. Between 800ºC to 840ºC, the water molecules are driven off and talc dissociates into enstatite and amorphous silica without undergoing any change in shape, the shrinkage being 0.0005 inch only. In the manufacture of ceramic goods required for the electrical industry, the talc should not contain more than 1.5% FeO and CaO. Some consumers do not regard CaO as having any harmful effect. Steatite suitable for the manufacture of 'lava' insulators must he dense, compact, uniform and homogeneous intexture, free from any inclusion and parting planes. It should not contain CaO more than 1.5% and Fe2O3; more than 1%. The iron oxide is a colourant and gives the fired shapes an unattractive colour. An increase of iron oxide above two per cent decreases the 'Q' value (ratio of reactance to resistance) and increases the dielectric constant. CaO imparts abrasiveness and usually a short vitrification range and sometimes a high firing shrinkage. Paints In this industry, foliated, fibrous or lamellar talc of fine mesh (300 mesh) is preferred. It is used as a paint or an extender in paint industry. Colour, particle size and oil absorption are the main criteria for selecting talc for paint manufacture. Talc suitability for paint should have volatile matter below 0.75%, oil absorption within 5 of the approved sample and solubility not more than 0.25% in water. Asbestine is the trade name given to fibrous talc suitable for paint making. Other uses A fair proportion of medium to inferior grades of talc is used in the manufacture of perticides and insecticides. Talc is used here as a carrier. Talc powder prevents infestation of food grains from insectsand pests and hence it is sprinkled over food grains kept in big godowns. Other uses are for making crayons for marking purposes and for tailors' chalk. Talc for Plastic & Rubber Low Abrasion : Talc is the softest of all minerals with a Moh´s hardness of 1. But only pure, chlorite-free talcs, give the low abrasion values which lead to a long tool life in compounding and extrusion. Colour Consistency : PP compounds are pigmented in a large variety of colours. To ensure reproducible colour shades, the colour of the talc should show as little variation as possible. Flotated Ztalcs are most tightly controlled and give a significant benefit to formulators. Creep Resistance : Creep is the deformation of pipes under load (e. g. under soil) over a long period of time. Pure, platy talc leads to superior creep resistance compared to other fillers. Oxygen Barrier : In polyolefine food packaging, talc reduces oxygen and water vapour transmission. Pure, chlorite-free talcs are chemically inert and can fulfil the anti-migration requirements of EN 1186. Stiffness (E-Modulus) : The main function of talc in polymer compounds is to increase the E-modulus. Talcs with high aspect ratio are the most efficient. Thermal Conductivity : Talc/polyolefine compounds have a significant higher thermal conductivity than the virgin polymer. Heating and cooling are shorter, resulting in faster production rates. Impact Srength : A loading of up to 10% of a fine, pure platy talc like Ztalcs M05SL can increase stiffness and impact strength of polypropylene compounds at the same time. Nucleation : Fine talcs with a median particle diameter of 2 µm very efficiently promote the crystallization of polypropylene, leading to improved impact strength. Heat aging resistance : Magnetic impurities like soluble iron oxide are removed by electromagnetic separation in the purification for Ztalcs SL grades.Iron, which is incorporated in the talc crystal (replacing Mg atoms), is inactive and does not have a negative effect on the heat distortion temperature. Scratch Resistance : Pure, soft talc leads to a better slip of scratching objects.Greyish talc reduces the visibility of scratches. Reinforcement of Rubber : The micro-crystalline Extrafil talc grades with high specific surface area improve mechanical properties of rubber compounds, at the same time reducing gas permeability and electrical conductivity.

The company provides superior quality Silica Powder in the national as well as international market. Silica Mineral is a white crystalline compound denoted by SiO2 that occurs abundantly as quartz, sand, flint, agate and in other forms. Natural Silica is obtained from the reputed mines and then they are grinned in the form of powder at our processing unit. Silica Mineral Powder finds numerous applications in Glass, Ceramic and Tooth Paste. In addition to this, we are identified as one of the reliable Silica Powder Suppliers in India.

The company is engaged in offering finest quality Dolomite Powder in the market. Dolomite Mineral is a double carbonate rock with composition of calcium & magnesium whose proportion varies as per the mining zone. Chemically & structurally Dolomite Mineral Powder is similar to calcite with half the calcium ions replaced by magnesium. Besides, we are one of the eminent Dolomite Exporters from India. Uses of Dolomite Paints, Inks, Powder Coating and Ceramic Industry.Detergent, Soap