Calcium oxide (CaO), commonly known as quicklime or burnt lime, is a widely used chemical compound. It is a white, caustic, alkaline crystalline solid at room temperature. The broadly used term lime connotes calcium-containing inorganic materials, in which carbonates, oxides and hydroxides of calcium, silicon, magnesium, aluminium, and iron predominate, such as limestone. Calcium oxide is usually made by the thermal decomposition of materials such as limestone, that contain calcium carbonate (CaCO3; mineral calcite) in a lime kiln. This is accomplished by heating the material to above 825 °C (1,517 °F), a process called calcination or lime-burning, to liberate a molecule of carbon dioxide (CO2); leaving quicklime. The quicklime is not stable and, when cooled, will spontaneously react with CO2 from the air until, after enough time, it is completely converted back to calcium carbonate Uses quick lime Quicklime is relatively inexpensive. Both it and a chemical derivative (calcium hydroxide) are important commodity chemicals. Quicklime produces heat energy by the formation of the hydrate, calcium hydroxide, by the following equation:[3] CaO (s) + H2O (l) Ca (OH) 2 (aq) (ΔHr = −63.7 kJ/mol of CaO) As it hydrates, an exothermic reaction results and the solid puffs up. The hydrate can be reconverted to quicklime by removing the water by heating it to redness to reverse the hydration reaction. One litre of water combines with approximately 3.1 kilograms (6.8 lb) of quicklime to give calcium hydroxide plus 3.54 MJ of energy. This process can be used to provide a convenient portable source of heat, as for on-the-spot food warming in a self-heating can. When quicklime is heated to 2,400 °C (4,350 °F), it emits an intense glow. This form of illumination is known as a limelight, and was used broadly in theatrical productions prior to the invention of electric lighting. Calcium oxide is also a key ingredient for the process of making cement.
Sand particles range in diameter from 0.0625 mm to 2 mm. An individual particle in this range size is termed a sand grain. Sand grains are between gravel (with particles ranging from 2 mm up to 64 mm) and silt (particles smaller than 0.0625 mm down to 0.004 mm). we can reach up to 45 micron milled sand with magnetic separation uses • Beach nourishment: Governments move sand to beaches where tides, storms or deliberate changes to the shoreline erode the original sand. • Brick: Manufacturing plants add sand to a mixture of clay and other materials for manufacturing bricks. • Cob: Coarse sand makes up as much as 75% of cob. • Mortar: Sand is mixed with cement and sometimes lime to be used in masonry construction. • Concrete: Sand is often a principal component of this critical construction material. • Glass: Sand is the principal component in common glass. • Landscaping: Sand makes small hills and slopes (for example, in golf courses). • Glaze, frit, ceramic, instead of quartz • Paint: Mixing sand with paint produces a textured finish for walls and ceilings or non-slip floor surfaces. • Railroads: Train operators use sand to improve the traction of wheels on the rails. • Roads: Sand improves traction (and thus traffic safety) in icy or snowy conditions. • Sand animation: Performance artists draw images in sand. Makers of animated films use the same term to describe their use of sand on frontlit or backlit glass. • Sand casting: Casters moisten or oil molding sand, also known as foundry sand and then shape it into molds into which they pour molten material. Oxides % SiO2 99.6 Al2O3 0.2 Fe2O3 TiO2 CaO MgO K2O Na2O L.o.I (1100 C) .020 0.01 0.02 0.01 0.01 0.01 0.10
Mica are sheet silicates historically significant for their ability to be split into large, thin sheets that are uniquely useful for their electrical, thermal, and mechanical properties. They have high electrical and thermal insulating properties; they are resistant to chemical attack; they can be split into transparent or optically flat films; and they can be cut or stamped to shape. Uses of mica: 1- Joint cements: muscovite is used in drywall joint compounds, where it contributes to consistency and workability, smooth surface finish, and resistance to shrinkage and cracking. 2- Coatings Fine-ground, -325 mesh and micronized mica grades are used in paint as a pigment extender and for dry film reinforcement. The inert, platy mica improves suspensi on stability, controls film checking, chalking, shrinkage, and blistering, improves resistance to weathering, chemicals, and water penetration, and improves adhesion to most surfaces. Coarser grinds are used in textured paints, and wet-ground mica is used in high quality exterior house paints. High aspect ratio grades are preferred for porous surface sealers to seal pores, control penetration, and reduce sagging and film cracking. 3- Plastics Finely ground, -325 mesh and micronized micas are used in plastics to improve electrical, thermal, and insulating properties. Mica is considered the most effective mineral for reducing warpage and increasing stiffness and heat deflection temperature in plastics. In general, mica reinforces crystalline better than amorphous polymers. Best results are obtained with nonpolar polymers when mica is pretreated with a coupling agent to improve wetting. Mica is used in both thermoplastics and thermosets. Its largest single use is in polyolefins, even though it requires stabilizers to prevent degradation of polypropylene. 4- Drilling fluids Coarse, hammermilled (+10 mesh) mica is used in waterbased oilwell drilling fluids to prevent fluid loss into porous rock formations.
Kaolinite is a clay mineral, part of the group of industrial minerals, with the chemical composition Al2Si2O5 (OH) 4. Uses: 1- paper industry which consumption about 50 % of world kaolin production that 30% of paper is kaolin so it become soft, glassy touch, High-brightness, low abrasion water-washed, to improve brilliance, smoothness, and ink receptivity.. 2- plastic industry: because it give the surface soft touch, resistance to chemicals, fixed form, and not electric transmitted, reduced cracking, warping and crazing, 3-ceramic industry: it is the essential substance in this industry, they make several tests to measure pottery coefficient, color degree after firing, shrinkage degree, viscosity degree, degree of firing, casting degree. 4- rubber industry: to increase tension strength, increase corrosion resistance, increase solidification, and also decrease the coast. 5- painting industry: use due to its chemical inert and covering pores, low coast white color, and dissolution in painting, 6- Refractories :contain flint clay to give a dense, strong product able to withstand much higher temperatures. 7- Adhesives and sealants Kaolin is used to control flow, penetration, and specific adhesion on application, and adhesive strength, tear strength, tensile strength, and elongation after cure. 8- Other Uses Kaolin clays are used in the manufacture of aluminum chemicals, 9- bricks, 10-cements, 11- cosmetics, pharmaceuticals, 12- animal feeds, fertilizers, catalysts, wallboard, printing ink, linoleum, flexible tile, pesticides, 13-Kaolinite can contain very small traces of uranium and thorium, and is therefore useful in radiological dating. 14- Kaolinite has also seen some use in organic farming, as a spray applied to crops to deter insect damage, and in the case of apples, to prevent sun scald. 15- When heated to between 650 and 900 °C kaolinite dehydroxylates to form metakaolin.
Calcium carbonate, or CaCO3, comprises more than 4% of the earths crust and is found throughout the world. Its most common natural forms are chalk, limestone, and marble, produced by the sedimentation of the shells of small fossilized snails, shellfish, and coral over millions of years. Although all three forms are identical in chemical terms, they differ in many other respects, including purity, whiteness, thickness and homogeneity. Calcium carbonate is one of the most useful and versatile materials known to man. Uses Paper, Plastics, Paints, and Coatings: Calcium carbonate is the most widely used mineral in the paper, plastics, paints and coatings industries both as a filler and due to its special white color - as a coating pigment. In the paper industry it is valued worldwide for its high brightness and light scattering characteristics, and is used as an inexpensive filler to make bright opaque paper. Filler is used at the wet-end of paper making machines, and calcium carbonate filler allows for the paper to be bright and smooth. As an extender, calcium carbonate can represent as much as 30% by weight in paints. Calcium carbonate also is used widely as a filler in adhesives, and sealants. Personal Health and Food Production: Calcium carbonate is used widely as an effective dietary calcium supplement, antacid, phosphate binder, or base material for medicinal tablets. It also is found on many grocery store shelves in products such as baking powder, toothpaste, dry-mix dessert mixes, dough, and wine. Calcium carbonate is the active ingredient in agricultural lime, and is used in animal feed. Calcium carbonate also benefits the environment through water and waste treatment. Building Materials and Construction: Calcium carbonate is critical to the construction industry, both as a building material in its own right (e.g. marble), and as an ingredient of cement. It contributes to the making of mortar used in bonding bricks, concrete blocks, stones, roofing shingles, rubber compounds, and tiles. Calcium carbonate decomposes to form carbon dioxide and lime, an important material in making steel, glass, and paper. Because of its antacid properties, calcium carbonate is used in industrial settings to neutralize acidic conditions in both soil and water Element CaCo3 99.20 MgCo3 0.20 Fe2O3 0.01 HCI 0.20 Whiteness 96.30 Yellowness 0.70 Size : 20-8 Micron
Silica Also called silica sand or quartz sand, silica is made of silicon dioxide (SiO2). Silicon compounds are the most significant component of the Earthâ??s crust. Since sand is plentiful, easy to mine and relatively easy to process, it is the primary ore source of silicon. The metamorphic rock, quartzite, is another source. Silicon (Si) is a semi-metallic or metalloid, because it has several of the metallic characteristics. Silicon is never found in its natural state, but rather in combination with oxygen as the silicate ion SiO44- in silica-rich rocks such as obsidian, granite, diorite, and sandstone. Feldspar and quartz are the most significant silicate minerals. Silicon alloys include a variety of metals, including iron, aluminum, copper, nickel, manganese and ferrochromium. Uses Ferrosilicon alloys are used to improve the strength and quality of iron and steel products. Tools, for instance, are made of steel and ferrosilicon. In addition to tool steels, an example of â??alloy steels,â?? ferrosilicon is used in the manufacture of stainless steels, carbon steels, and other alloy steels. An alloy steel refers to all finished steels other than stainless and carbon steels. Stainless steels are used when superior corrosion resistance, hygiene, aesthetic, and wear-resistance qualities are needed. Carbon steels are used extensively in suspension bridges and other structural support material, and in automotive bodies, to name a few. Silicon is used in the aluminum industry to improve castability and weldability. Silicon-aluminum alloys tend to have relatively low strength and ductility, so other metals, especially magnesium and copper, are often added to improve strength. In the chemicals industry, silicon metal is the starting point for the production of silianes, silicones, fumed silica, and semiconductor-grade silicon. Silanes are the used to make silicone resins, lubricants, anti-foaming agents, and water-repellent compounds. Silicones are used as lubricants, hydraulic fluids, electrical insulators, and moisture-proof treatments. Semiconductor-grade silicon is used in the manufacture of silicon chips and solar cells. Fumed silica is used as a filler in the cement and refractory materials industries, as well as in heat insulation and filling material for synthetic rubbers, polymers and grouts. Silica is used in ceramics and in making glass. Silicon is considered a semiconductor. This means that it conducts electricity, but not as well as a metal such as copper or silver. This physical property makes silicon an important commodity in the computer manufacturing business. Element Type 1 Type 2 SiO2 99.52 99.558 Fe2O3 0.014 0.016 Al2O3 0.142 0.021 TiO2 0.022 0.020 CaO 0.070 0.010 MgO 0.007
The development of all gypsum boards begins with a mineral rock, which is gray to white in color and is called gypsum. The basic mineral is composed of calcium sulfate chemically combined with water of crystallization. The combined water makes up approximately 20% of weight of gypsum rock. This is the feature that gives gypsum its fire resistant quality and makes it so adaptable for construction purposes. After gypsum rock is mined or quarried, it is crushed, dried, and ground to flour fineness, then calcined to drive off the greater part of the chemically combined water as steam. This calcined gypsum, commonly called plaster of paris, is then mixed with water and other ingredients and sandwiched between two sheets of specially manufactured paper to form various types of gypsum board or specially formulated and bagged for shipment as gypsum plaster or cement. Gypsum boards are formed in a highly automated continuous process. After the gypsum board has set, the boards are cut to length, dried, prefinished if required, and packed for shipment. All processing is in strict accordance with specifications and complies with more than 256 procedures and work instructions to meet quality standards and customer's satisfaction. ADVANTAGE: Life Safety Protection Fire resistance is inherent in the gypsum construction selected. The systems provide permanent fire resistance not subject to loss of water pressure or other malfunctions and problems which may occur in sprinkler systems. Fire Resistance: Gypsum will not support combustion. When attacked by fire, crystallized water in gypsum is released and turns to steam to help retard the spread of flame and heat and protect adjacent constructions. Light Weight: Gypsum board constructions weigh appreciably less than masonry assemblies of the same thickness. They reduce material - handling expense and may permit the use of lighter structural members, floors, and footings. Sound Control: Gypsum board construction offers excellent resistance to airborne and impact sound transmission without excessive bulk or weight. Resilient attachment of gypsum panels or bases further improves sound ratings, makes partitions ideally suited for party walls. Versatility: Gypsum board construction is suitable as divider, corridor and party walls; pipe chase and shaft enclosures; radiant-heat ceilings; exterior walls and wall furring; membrane fire resistant constructions. Adaptable for use in every type of new construction - commercial, institutional, industrial and residential - and in remodeling. It produces attractive joint - free walls and ceilings; easily adapt to most contours, modules and dimensions. SPECIFICATIONS It is ivory colour that is nice whether being painted or used as the end colour. THICKNESS WIDTH LENGTH KG/M2 9.0 1220 2440 8.3KG 12.0 1220 2440 12KG
We export premium clinker to cement manufacturers globally. Our materials meet industry standards and undergo rigorous testing before shipment. Accepted Delivery Terms: FOB & CFR
Clinker.
Clinker.
Clinker.
Clinker.
Silica Sand, Limestone, Ground Calcium Carbonate, Ground Calcium Carbonate Coated, Kaolin, Manganese Ore, Phosphate, Gypsum, Ferromanganese, Fruits, Vegetables, Building Materials, Cement, Paints..
Petcoke, clinker.Trading
Supply of cement. Petroleum materials. Clinker.
Potato Starch for textile Starch for Glue all kind of Paper & Carton Cement component Bags & Packages for all industrial kind
Cement, phosfate , salt , alfalafa hay , building material.
Camping tents ie restaurant tents, sleeper tents, party tents etc. tarpaulin, all leather bag related products, seat covers, cooperate bags eg traveling bags, tote bags , wash bags , shopper bags, embroidery, printed bags, laptop bags, backpacks, outdoor umbrella etc all are made in canvas, ripstock, african ankara, cement, pvc materials according to your specifications..
Calcium carbonate, bentonite, limestone, base oil, brightstock, solar panels, solar heaters, solar energy projects, diesel fuel, jet fuel, portland, rebco, BLCO, potassium chloride.
We export Silica Sand and deicing salt from Egypt
