We are manufacturing snow white grade Natural Dolomite Powder. We produce all size of natural dolomite powder and dolomite sand or lumps. We supply you good quality and competitive price. Place of Origin: ROUMANIA The whiteness of this grade is up to 95%. USAGE Used in building materials, ceramics, glass and refractories, chemicals and agriculture, environmental protection, energy and other fields. Used for basic refractories and blast furnace flux Production of calcium magnesium phosphate and magnesium/magnesite preparation, Ingredients and the production of glass and ceramics. Specifications: CaCO3 - 54,5455 % ; MgCO3 - 44,3696 % ; Al2O3 - 0,0357 % ; SiO2 - 0,1027 % ; P2O5 - 0,0075 % ; SO3 - 0,0170 % ; Cl - 0,0044 % ; K2O - 0,0137 % ; TiO2 - 0,1029% ; V2O5 - 0,0013% ; MnO - 0,0572% ;Fe2O3 - 0,0760% ; CuO - 0,0123% ; GeO2 - 0,0131% ; As2O3 - 0,0381% ; SeO2 - 0,0111% ; SrO - 0,0262% ; BaO - 0,2806% ; Insoluble HCI - 1,0849 %
Chromite is lack or brown, The main ingredient of chromite FeOr2O3. It is shaft and granular crystal system. The hardness is 5.5 and density is 4.3 g/cm3. Because melting point of chrome oxide is 1900?,so can adjust high-temperature friction coefficient or decrease high temperature heat recession , clean the friction couple in the high temperature to increase the efficiency of the brake. Chromite can applied in brake pad drum brake or clutch.The recommended regular consumption is 2?8% density: 4.3-4.6/cm3 chrome oxide content: =30% screen analysis: +S 200
Product introduction: chalcocite is lightgray powder,it is made by selected and crushed chalcocite ore, the main ingredients is cuprous sulfide. The density is 8.3-8.9g/cm3, the hardness is 3 ,the melting point is 1030 centigrade and the boiling point is 2310 centigrade. Chalcocite used for friction materials to adjust the high temperature friction properties and wear resistance, it suitable for disc brake pads and drum brake pads. According to the requirements of the performance,the recommended regular consumption is between 2% and 8%. Property: density: 5.4-5.8g/cm3 copper content:18%-20% moisture:2%max screen analysis: +S 100 0 -S 180 90%max grade:200mesh,325mesh sieving rate: 97%
Product description, Product introduction: Diatomite is a kind of biogenic silicastone, It is mainly composed of the remains of ancient diatom. Diatomite mineral contains opal, and mixed with the monomer of quartz grain impurities, the color can be white, yellow , green etc.. Diatomite is a kind of friction materials,it can improve the process performance of friction material, and can make the products have stable friction performance, prolong the service life, reduce the cost. Diatomite can be applied in Brake pad Drum brake or clutch. According to the performance requirement,The recommended regular consumption of Diatomite is from 2% to 8%. The character of Diatomite: The main chemical composition of Diatomite is SiO2,The  chemical formula is SiO2NH2O,and the mineral composition are opal and its variants. Except SiO2, Diatomite also contains a small amount of impurities such as Fe, A1, Ca, Mg, K, Na etc.. Diatomite often accompanied by various kinds of clay, quartz and dolomite, etc.. Property: Si02: 75% min A1203: 4% max Fe: 0.05% max L.O.I: 6% max
Commodity; Basalt debris in bulk It can ship 5,000mts due to the depth of the Songgwan port. It can ship 20,000mts or more per month according to the need of the buyer.
Product description, Product introduction: Dolomite is White powder, the main ingredient is calcium carbonate and magnesium carbonate.The physical properties of dolomite is that Moh�??s Scale Hardness is from 4.5 to 4.0,density is from 2.8 g/cm3 to 2.9 g/cm3. Dolomite is decomposed into carbon dioxide calcium oxide and magnesium oxide when tempreture is between 700 and 900 degree centigrade. Dolomite is made by crushed Dolomite ore.It is used as friction material to for stable friction coefficient,and can improve process performance, improve the wear resistance of friction material, and reduce the cost.Dolomite used in Brake pad Drum brake or clutch.The recommended regular consumption of Diatomite is unlimited.. The character of Dolomite: Dolomite, also known as bitter ash stone, it is the double salts of calcium carbonate (CaCO3) and magnesium carbonate (MgCO3), The theoretical ratio is: MgC03 accounted for 45.65%, and MgCO3 accounted for 4.35%. Appearance of dolomite is yellow white, Pink.The kind is of shiny crystalline white clouds and crystalline dolomite two absorption. Dolomite has good fireproof , heat insulation and waterproof performance Dolomite can be used as friction material to reduce the cost.with application in the brake pads, the function is to improve the stability of the friction coefficient. Property: A1203: 0.04% SiO2: 1.10% Fe203: 0.23% CaO: 33.96% MgO: 22% min grade:200mesh,325mesh sieving rate: 97%
Product description, Product introduction: Zeolite is a kind of new material, by aqueous alkali or alkaline earth metal aluminum silicate minerals Main Chemical composition of Zeolite are Si02,A1203, H2O and alkaline earth metals, Si02 and A1203 content is about 80%.Physical properties of zeolite: Moh�??s Scale Hardness is from 3.5 to 5.5,density is from 2.1 g/cm3 to 2.5 g/cm3.Zeolite Has good performance of adsorption, cation exchange properties, catalytic properties, heat resistance, acid etc.Zeolite is used as friction material to for stable friction coefficient,and can reduce the cost. It can be used in brake pad drum brake or clutch. The recommended regular consumption of zeolite is from 2% to 8%. The character of Zeolite: Zeolite is the floorboard of the family of zeolite minerals, a frame structure, is a kind of aqueous alkali or alkaline earth metal aluminum silicate minerals. At present our country found more than 10 kinds of natural zeolite,such as clinoptilolite ,mordenite zeolite, alkali ling zeolite and calcium cross,but widely used only clinoptilolite and mordenite zeolite.Zeolite has many function and usage. Zeolite density is small, high foam, good activity, zeolite water of crystallization and the general structure of water (OH) is different, because it as water molecules, the zeolite water under a certain temperature heating, the lattice structure are not destroyed after dehydration, the location of the original molecules there are still gaps, form a lattice structure, sponge with water and gas suction space feature, when the temperature rises, the zeolite cavity that the larger molecules to enter, cooled molecules trapped within the cavity and keep for a long time, until the heat release. The characteristics of zeolite was known as the "boiling". Foreign patent added zeolite in friction material to absorb gaseous and liquid molecules emitted by thermal decomposition to achieve the purpose of reducing thermal annealing Property: SiO2: 65%min A1203: 18% -22% Zeolite content: 60% min grade: 200mesh,325mesh sieving rate: 97%
Product description, Product introduction: Barite powder is grey ink or white powder, it is made bybarite ore,the main composition is BaS04. physical properties of barite: Mohs Scale Hardness is from 2.5 to 4.5,density is from 4.3 g/cm3 to 4.5 g/cm3,and the melting point is 1580 degree centigrade . whenBarite is used in friction materials ,it can improve performance and reduce the cost,it is suitable for disc brake pads,drum brake pads and clutch etc.. The recommended regular consumption of barite is from 2% to 8%. The character of Feldspar: Barite is the most widely used friction material, it can keep stable friction coefficient and small particles. Barite especially can form a stable boundary friction layer at high temperatures to prevent the dual material surface scratch and to make the dual surface grinding more bright and clean. Used in the friction material,with dispersity barite is easy to adsorption with all kinds of resin, so as to improve high temperature resistant andwear resistance of the adhesive. With unique physical and chemical properties,Barite is widely used in all industries,especially in the oil industry,chemical industry,friction industry and abrasive industry etc. Property: BaS04: 92% min CaO: 2% max SiO2: 1.5% max PH value: 7.2max density: 2.5-3.5 whiteness: 92min moisture: 0.2% max grade:200mesh,325mesh sieving rate: 97%
Product description, Product introduction: Bentonite is clay rock with the main minerals of montmorillonite, it belongs to the aquifer shape aluminum silicate minerals. Physical properties of bentonite: Mohs Scale Hardness is from 2 to 2.5,density is 2.6 g/cm3 ,and the color is white or light yellow.Bentonite is characterized by the natures of strong hygroscopicity, decentralization, suspension, certain viscosity, Thixotropy and lubricity, and strong cation exchange capacity.Bentonite is used in Brake pad Drum brake or clutch, The recommended regular consumption of kaolin is from 2% to 8%. The character of bentonite: Bentonite is of oil luster, waxy luster, earthy luster. The fracture is of shells or dentate shape.Sodium base bentonite is dense clumps commoly, calcium base bentonite is loose earthy commonly, the surface has smooth feeling, relative density is 2- 3.Bentonite has strong hygroscopicity, the biggest water quantity is 8 to 15 times of its volume, it will expansion from several times to thirty times after water absorption.Bentonite has High plasticity and good cohesiveness. The main chemical ingredients of Bentonite are K,Na,Ca, etc., and these ingredients often exist in different content in bentonite. The Na2O and CaO content directly affects the physical and chemical properties of bentonite.Sodium base bentonite has better expansibility and cohesiveness than that of calcium base bentonite.To meet many application needs,it need to change bentonite base to improve the technical performance of bentonite. Because the variety of excellent performance, bentonite can be used as binder, Filler, catalyst, stabilizer, plasticizer and thickener etc..Bentonite can be used as filler in friction material to reduce cost. Property: A1203: 18% min SiO2: 56% min Na2O+K2O: 2%-3% PH: 8.5-10.6 expansion coefficient: 20times-30times grade: 200mesh,325mesh sieving rate: 97%
Product description, Product introduction: Fluorite powder is White or light yellow, main ingredient is CaF2, among which fluoride is 48.67% and calcium is 51.33%.Fluorite is of cubic system, it has glass gloss, the hardness is 4 and fusibility is between 1270�?? and 1350 �??. The maily function of Fluorite is to improve the friction coefficient,it has good adsorption and acid etc. Fluorite is suitable for the disc brake pads,drum brake pads and clutch. According to the performance, the reference usage of Fluorite is generally from 2% to 8%. The character of Fluorite: Fluorite is named because it can emit fluorescence when heated in the dark. The color of fluorite ore are primary, green and purple,and the color is gorgeous dense. The non-weathering fluorite can be as jade material or ornamental stones. Fluorite is used as a flux in the modern industry especially in steel, aluminium, cement and glass production, it is one of essential raw materials. Fluorite is an important raw material in friction material grinding wheel production, Many industrial all have requirements of fluorite. China began to use fluorite carve handicraft even since the Neolithic Age. Because the fluorite hardness is lower than the crystal it is called soft water amethyst. These years, some people called purple fluorite as purple jade. property: density: 3.18/cm3 F content: 48 % min screen analysis: +S 200
Product description, Product introduction: Feldspar powder is gray or pale yellow powder, the typical kind is Na-k feldspar which contain Potassium oxide and sodium oxide physical properties of Na-k feldspar: Mohs Scale Hardness is from 6 to 6.5,density is from 2.55 g/cm3 to 2.76 g/cm3,and the melting point is from 1215 degree centigrade to 1290 degree centigrade. The role of feldspar in abrasive products mainly adjust the product viscosity, reduce the product cost, The recommended regular consumption of Diatomite is from 2% to 8%. The character of Feldspar: Feldspar is frame structure formed by oxygen-silicon tetrahedron silicate minerals of K, Na, Al and Ca. In nature, feldspar is of three series which are alkali feldspar series, plagioclase series, baryta feldspar series. One is alkali feldspar series made by the mixture of Na feldspar and k feldspar, it includes Orthoclase ,Microcline, Sanidine, Adularia and Anorthoclase. The second is plagioclase made by mixture of Na feldspar and Ca feldspar. Currently plagioclase is divided into six kinds by sodium calcium ratio, and the An feldspar ratio is also the plagioclase brand Third one is baryta feldspar series, including baryta feldspar, deputy baryta feldspar,barium sodium feldspar and strontium feldspar Property: A1203: 9.78% Si02: 57.16% Fe203: 0.54% CaO: 9.92% K2O: 7.86% Na2O: 3.85% MgO: 3.8% Loss: 14.12% grade:200mesh,325mesh sieving rate: 97%
Product description, Product introduction: The basalt rock is a kind of volcano, Mohs Scale Hardness is from 3 to 3.5,density is from 2.1 g/cm3 to 3.1 g/cm3,and the color is dark gray. Basalt is a new friction raw material, it is mainly to improve the coefficient of friction and reduce costs. Basalt is used in Brake pad Drum brake or clutch,The recommended regular consumption of Basalt is from 2% to 8%. The character of Basalt: Basalt is a kind of basic extrusive rock,it is formed by magma in the earth's surface by a volcanic eruption after cooling solidification and become a dense or foamy structure of rock, it belongs to magmatic rocks. Basalt rock structure often has the shape of pores, almond-shaped structure and porphyritic structure, sometimes with a large mineral crystals, The color of unweathered basalt mainly is black ,gray, also has the color of dark brown, dark purple and celadon. Basalt volume density is from 2.8 g/cm3 to 3.3 g/cm3, the compression strength is very big which can be up to 300 mpa or even higher in dense structure, but intensity will be reduced if the impurities with crystal and porosity. Basalt has High durability and joint of which the Joint surface appear as hexagon (in basalt lava flow, rock vertical condensation surface often develop into regular hexagonal prism shape joints). Because of the brittleness of Basalt, it is not easy to be picked large pieces of stone. Although basalt is widely distributed on the earth's surface, but because of the air hole and almond construct, it is often to use as facing stone. Property: A1203: 15%- 18% SiO2: 43%-49% Fe203: 5%-12% grade: 200mesh,325mesh sieving rate: 97%
Supplier of Dolomite Pratibha Refractory Minerals is an illustrious company in the field of Supplier of refractory minerals such as Dolomite, Talc powder and kaolin. We do offer our clients the best quality of Dolomite mineral. Our products are made up with accurate composition and they are supreme pure. We always take care of quality norms and slandered of our products. Dolomite-Preface The name Dolomite is widely used but its other names are-dolomitic limestone and dolomita. Dolomite belongs with carbonate family. It is composition of calcium and magnesium. Both elements may be present in same amount or may be more or less. Usage of Dolomite: Dolomite is an industrial product and has long list of applications. It is widely used as refractory minerals. It is used to frame refractory bricks which are used in steel producing industries We do supply our products mainly in Indonesia and all over the world. Main Indonesian cities where we supply our refractory products are: Bali, Jakarta, Java, Kalimantan, Tarakan, Ambon, Kali, Sumbawa, Timor, Ternate, Sulawesi, Buton, Sumatra, Batam and Bintan. Average market price of Dolomite is 15000 Indian Rupees per ton.
Boron nitride, spray, 97% Boron nitride, powder, 1-5 âµm, 98% Boron nitride, powder, 1-15 âµm, 99.5% Boron nitride, powder, nanopowder, 99% Calcium nitride, 99%, 200 mesh Chromium nitride, 325 mesh Germanium nitride, 99.99% Magnesium nitride, 99.5%, 325 mesh Aluminum nitride, nano-powder
Product id purity % mean particle size (um)phasesurface area(m2/g) A-0001 99.6% 2.50.5 -phase 1.25 A-0002 99.6% 5.50.5 -phase 1.06 A-0003 99.6% 101 -phase 0.89 A-0004 99.6% 403 -phase 0.56 A-0005 99.6% 2.50.5 -phase 0.9 A-0006 99.6% 5.50.5 -phase 0.6 A-0007 99.6% 101 -phase0.5 A-0008 99.6% 403 -phase0.2 A-0009 99.6% 703 -phase0.13 A-0010 99.6% 903 -phase 0.08 A-0011 99.6% 0.30.2 -phase0.3 A-0012 99.95% 0.5-0.8 -phase6-9 A-0013 99.6% 0.80.3 -phase 0.3 A-0014 99.6% 2.50.5 -phase 1.5 A-0015 99.6% 5.51 -phase 0.62 A-0016 99.6% 102 -phase0.58 A-0017 99.6% 455 -phase0.32 A-0018 98% metallurgical grade
Fluorspar CaF2 ~ 70%, 75%, 80%, 85%, 90%+
Soapstone, Talc SiO3 - whiteness and Brightness 80% to 95%+
Dear Sir : we can offer asbestos fiber for you . origin : russia and china grade : 4 / 5 or 6
Bauxite Ore Specification : Lump Size : 2mm - 75mm (90% min). Country of Origin : Malaysia Port of Loading : Kuantan Port, Pahang, Malaysia. Base Alumina (Al2O3) Content : .41% – 42%% (rejection : < 40%) Silica (SiO2) Content : 3% - 5% (rejection : > 6%) Moisture Content : 18% max. Quantity : 50,000 - 200,000MT (+/- 10%) per month. Bulk
Api 13a section 4 grade bentonite powder: Physical analysis: Properties Protocol Unit Required Result Viscometer dial reading at 600 rpm Api spec. 13a:2004/ iso 13500: 1998 R/min 30 34 Yield point / plastic viscosity ratio Api spec. 13a:2004/ iso 13500: 1998 _ 3 max 2.85 Filterate volume Api spec. 13a:2004/ iso 13500: 1998 Ml 15 max 14.4 Moisture content Api spec. 13a:2004/ iso 13500: 1998 % by weight 10.0 max. 10 Dry screen analysis(residue greater than 75 microns)% Api spec. 13a:2004/ iso 13500: 1998 % by weight 4.0 max. 3.0 - 4.0 Api 13a section 6 (ocma) grade bentonite powder: Properties Protocol Unit Required Result Viscometer dial reading at 600 rpm Api spec. 13a:2004/ iso 13500: 1998 R/min 30 40 Yield point / plastic viscosity ratio Api spec. 13a:2004/ iso 13500: 1998 _ 6 max 4.7 Filterate volume Api spec. 13a:2004/ iso 13500: 1998 Ml 16 max 15.4 Moisture content Api spec. 13a:2004/ iso 13500: 1998 % by weight 13.0 max. 10 -12 Dry screen analysis(residue greater than 75 microns)% Api spec. 13a:2004/ iso 13500: 1998 % by weight 2.5 max. 2.0 Ocma dfcp 4 grade bentonite powder: Physical analysis: Properties Protocol Unit Required Result Yield Ocma dfcp-4 Bbls/2000lbs 90 min 99 - 115 A.P.I. Filterate loss Ocma dfcp-4 Ml 15.0 max. 13 - 14 Moisture content Api spec. 13a:2004/ iso 13500: 1998 % by weight 15.0 max. 10.0 - 12.0 Dry screen analysis 100 mesh sieve Ocma dfcp-4 % by weight 98.0 min. 98.5 Wet screen analysis 200 mesh sieve residue Ocma dfcp-4 % by weight 2.5 max 1.75
