Tuesday, May 19, 2015

Perlite

Perlite is a hydrated, naturally-occurring volcanic rock. Its unique structure consists of numerous concentric layers, similar to the layers in an onion. Its natural color ranges from light pearl gray to dark gray. The distinguishing feature which sets Perlite apart from other volcanic siliceous rocks is that when heated above 1600°F, it expands up to 20 times its original size. The expansion is due to the presence of water (nearly 5%) trapped in the crude ore. 
Iran has many Perlite resources and is one of the best Perlite suppliers in Middle East. Marjan Mineral Company has a great ability to make all necessary trading communication with most of Perlite supplier. Read more . . .


Perlite Usages
Perlite is used in a number of different situations.
  • The majority of Perlite is used in construction products, mainly ceiling tiles and roof insulation products, but also as refractory bricks (a refractory brick is a brick designed to withstand very high temperatures), pipe insulation, and filling in masonry block construction. For example, loose Perlite is poured into holes in concrete blocks after they are laid in place to improve the insulating quality of the construction. Perlite is also used as an insulator in other ways in the construction of buildings. It reduces noise and, since it is non-combustible, it also improves the fire resistance of different construction components in buildings.
  • Perlite is an important commodity in the horticulture industry where it is mixed with soil. The addition of Perlite to soil increases the amount of air (i.e., oxygen) held in the soil, as well as the amount of water retained by the soil. This obviously improves the growing conditions for plants. This represents approximately 10% of annual Perlite consumption.

Talc

Talc, common silicate mineral (Mg3Si4O10(OH)2) that is distinguished from almost all other minerals by its extreme softness (it has the lowest rating on the Mohs scale of hardness). Its soapy or greasy feel accounts for the name soapstone given to compact aggregates of Talc and other rock-forming minerals. Dense aggregates of high-purity Talc are called Steatite. Iran is one of the best Talc suppliers in Middle East. Marjan Mineral Company can provide all necessary conditions for Talc exporting. Having good commercial relations with the most of Iran's Talc supplier is Marjan Mineral Company's honor. Read more . . .


Talc Usages:
Talc basically has five characteristics that make it a valuable mineral for industrial and domestic applications.
  • Softness
  • Chemical inertness
  • Lamellarity
  • Whiteness
  • Affinity for Organic Chemicals

In fact, Talc is found in everything from animal feed to tires, and has been for millennia. As long as 15,000 years ago, cave dwellers used Talc in their paints. For at least 5,000 years, it has been used in cosmetics, especially as a skin lightener, and 1,000 years ago, the Chinese began using it in their glazed pottery. Listed below are several of Talc’s uses for the industries of the world:
  • Paper Industry: Talc's number one consumer is the Paper Industry. It is used as filler and coating for paper products. Furthermore, Talc helps control the paper's pitch while the paper is being processed. It improves paper smoothness, water retention in certain papers, and printability and runnability for coated papers.
  • Ceramics Industry: The Ceramics Industry is another Talc consumer. The glazing and bodies of the ceramics rely on Talc to give ceramics their gloss, whiteness and shape. Dinnerware, Sanitary ware, tiles, porcelain, and electrical insulation are all part of ceramics made with Talc. It is also used as a flux and to control thermal expansion - particularly in catalysts and particulate filters. Read more . . .


Bauxite & Alumina

Aluminium is the third most abundant element in the earth’s crust. There are various different minerals. Bauxite is the most common raw material used to produce Alumina (Al2O3) for Aluminium metal production. Bauxite deposits are mainly found in a wide belt around the equator. Bauxite does not have a specific composition. It is a mixture of hydrous Aluminium oxides, Aluminium hydroxides, clay minerals and insoluble materials such as Quartz, Hematite, Magnetite, Siderite and Goethite. The Aluminium minerals in Bauxite can include: Gibbsite Al(OH)3, Boehmite AlO(OH), and, Diaspore, AlO(OH).
The raw material required to produce primary Aluminium is Aluminium oxide, also called Alumina. It is a white powder produced by the refining of Bauxite. Some two tonnes of Alumina are needed to produce one tonne of Aluminium through an electrolytic process. Alumina is also used for a number of other purposes, such as water purification and as an additive in various applications.
Iran is the biggest Aluminium supplier in Middle East and has a great potentiality for exporting. It’s Marjan Mineral Company’s great honor to provide all necessary things for exporting of Aluminium. Read more . . .


Bauxite, Alumina & Aluminium Usages:
Bauxite
Globally, most Bauxite mined is converted to Alumina for the production of Aluminium metal. A minor proportion goes to non-metal uses in various forms of specialty Alumina while the remainder is used for non-metallurgical Bauxite applications.
Alumina

  • The great majority of Aluminium oxide is consumed for the production of Aluminium, usually by the Hall–Heroult process.
  • Filler: Being fairly chemically inert and white, Aluminium oxide is a favored filler for plastics. Aluminium oxide is a common ingredient in sunscreen and is sometimes present in cosmetics such as blush, lipstick, and nail polish.
  • Pyrotechnics: Strontium compounds burn to produce a brilliant red flame and so are used in pyrotechnic materials, such as flares and fireworks. Read more . . .


Feldspar

Feldspar is the name given to a group of minerals distinguished by the presence of Alumina and silica (SiO2) in their chemistry. This group includes aluminum silicates of soda, potassium, or lime. It is the single most abundant mineral group on Earth. They account for an estimated 60% of exposed rocks, as well as soils, clays, and other unconsolidated sediments, and are principal components in rock classification schemes. The minerals included in this group are the Albite, Anorthite, Orthoclase, Microcline and Plagioclase Feldspars.
Iran has many active mines of Feldspar and has a great potentiality for exporting. Marjan Mineral Company will be pleased to provide necessary condition for exporting Feldspar. Marjan Mineral Company can make any trading communication with Feldspar Suppliers in Iran. Read more . . .


Feldspar Usages:
Engobe & Glaze: Engobe is a layer for covering the surface of the clay bodies with a different color. It gives a smooth surface to the Tile after application. The color is provided to the Engobe composition by addition of small amounts of metal oxides. Therefore the Tile can have an aesthetic appearance with different colors. Engobes are sometimes also called as slip or as an intermediate layer between clay body and Glaze. Glaze layer is applied on the Engobe layer as a final coating layer to impart a shiny appearance to the clay body. A low-melting additive of frit is often incorporated into the Engobe mixture to assist earlier vitrification upon firing. There is often less proportion of frit in Engobe than in Glaze. The latter is more glassy than the former. The amount of frit adjusts the hue of the Engobe color and the surface brightness. This is the reason why the Engobes are less shiny than Glazes. This property of the Engobes also provides the diffusion of the gas. In other words Engobes have a porous structure. Since the melting of the Engobe eventuates locally during the firing process. Porous structure of the Engobe allows passage of gases that may form during firing of the ware. If the Engobe layer is completely vitreous then gases cannot escape and blowholes can from, marring the surface of the ceramic. Read more . . .

For a good covering of the substrate, Engobe composition should be carefully designed. First the body and the Engobe should be compatible together during both drying and firing. This shows the quality of the Engobe. In addition, the firing temperature of Engobe should be near the firing temperature of the substrate. The roof Tiles have a low firing temperature. Therefore this condition is very important for making an Engobe for roof Tile. Secondly, the color of the substrate should be covered completely. The color of the Engobe is affected mainly by the amount of the iron in the Engobe. So, the raw material for making an Engobe should be chosen according to their purities. Finally, Engobe should cover the substrate well without peeling. Defects on the surface are not desired for Engobes. Read more . . .

Celestite

Celestite also known as Celestine (SrSO4) is a naturally occurring form of strontium sulfate. It is very similar to barite (barium sulfate), but less common. Celestite occurs in sedimentary rock formations, especially in dolomite and dolomitic limestone. Celestite is mined industrially as a source of strontium. Celestite also forms with other colorful minerals, making very nice combinations. Blue Celestite with bright yellow sulfur is one of the most famous colorful combinations of minerals. The ideal composition of Celestite is: SrO 56.42 % SO3 43.58 %. Iran has several Celestite mines and great potentiality for exporting. So Iran is one of the best Celestite suppliers of Middle East. Marjan Mineral Company has a great ability to provide all necessary things for exporting. Read More . . .


Celestite Occurrence
Celestine occurs as crystals, and also in compact massive and fibrous forms. It is mostly found in sedimentary rocks, often associated with the minerals gypsum, anhydrite, and halite. The mineral is found worldwide, usually in small quantities. Pale blue crystal specimens are found in Madagascar. The skeletons of the protozoan Acantharea are made of celestine, unlike those of other radiolarians which are made of silica. In carbonate marine sediments, burial dissolution is a recognised mechanism of celestine precipitation.

Celestite Usages
Almost all Celestite (99%) is used in the production of strontium carbonate. There are four main uses for Strontium Carbonate.

  • Glass: SrCO3 (Strontianite) is used in faceplate glass in TV and CRT glass to block X-rays and to improve glass quality.
  • Ceramic ferrite magnets: SrCO3 is mixed with iron oxide and processed to form strontium hexaferrite for use in permanent ceramic magnets. Read More . . .

Thursday, May 14, 2015

Gypsum

As demonstrated by its presence in the Egyptian pyramids, Gypsum has served as a vital piece of many famous construction projects throughout history. Over thousands of years, this important mineral has demonstrated its versatility and sturdiness and has become a staple in today’s homes, buildings and structures. Gypsum has been used in construction since the days of ancient Egypt, where it was used in building the Pyramids. Some of this construction is still visible over 5,000 years later, a tribute to Gypsum’s durability as a building material. Alabaster is a form of Gypsum used both in building and as a decorative material. In the 18th century, the French chemist Lavoisier began modern research on Gypsum by studying its chemical properties. Large deposits of Gypsum were discovered near Paris, and “Plaster of Paris” became a popular building material. Plaster of Paris is raw Gypsum that is chemically altered by heat to remove much of the water naturally occurring in Gypsum. French farmers also used natural Gypsum as a soil additive to improve crop yields. Benjamin Franklin brought this idea to America, and the use of Gypsum in agriculture expanded dramatically when Gypsum beds were discovered in New York State. Later deposits were found across the country, notably near Ft. Dodge, Iowa. Iran has significant Gypsum production and has great ability for exporting. Marjan Mineral Company can establish all necessary trading communication with most of Gypsum supplier in Iran. Read more . . .


Gypsum Usages:
A non-toxic mineral, gypsum can be helpful to humans, animals, plant life, and the environment. Gypsum can be used:
  • As a soil additive (sometimes called land plaster) to improve the soil’s workability and receptivity to moisture, and to overcome the corrosive effect of alkalinity. Gypsum specifically benefits such crops as alfalfa, corn, cotton, wheat, and peanuts where substantial amounts of sulfate sulphur are required.
  • As an additive in turbid water, particularly ponds, to settle dirt and clay particles without injuring aquatic life.
  • To create surgical and orthopedic casts. Read more . . .

Coal

The discovery of the use of fire helped to distinguish humans from other animals. Early fuels were primarily wood (and char Coal derived from it), straw, and dried dung. References to the early uses of Coal are meagre. Aristotle referred to “bodies which have more of earth than of smoke” and called them “Coal-like substances.” (It should be noted that biblical references to Coal are to char Coal rather than to the rock, Coal.) Coal was used commercially by the Chinese long before it was utilized in Europe. Although no authentic record is available, Coal from the Fushun mine in northeastern China may have been employed to smelt copper as early as 1000 B.C. Stones used as fuel were said to have been produced in China during the Han dynasty (206 B.C.– 220 A.D.). Coal is an abundant natural resource that can be used as a source of energy, as a chemical feedstock from which numerous synthetic compounds (e.g., dyes, oils, waxes, pharmaceuticals, and pesticides) can be derived, and in the production of coke for metallurgical processes. Coal is a major source of energy in the production of electrical power using steam generation. In addition, gasification and liquefaction produce gaseous and liquid fuels that can be easily transported (e.g., by pipeline) and conveniently stored in tanks. Iran has many active Coal mines such as Tabas, Shemshak, Nayband, etc. So we can count Iran as one of the best Coal Suppliers of Middle East. Marjan Mineral Company can make commercial communities to export Coal to all around the world. Read more . . .


Coal Usages:
Coal is used worldwide in many day-to-day goods and services that we might sometimes take for granted in our modern society – such as electricity generation, steel production and cement manufacturing.

There are two main types of coal, which have different uses:
  • Thermal coal: mainly used for electricity generation.
  • Coking coal (or metallurgical coal): mainly used in the production of steel. Read more . . .

Lead

Lead is a very corrosion-resistant, dense, ductile, and malleable blue-gray metal that has been used for at least 5,000 years. Early uses of Lead included building materials, pigments for glazing ceramics, and pipes for transporting water. The castles and cathedrals of Europe contain considerable quantities ofLead in decorative fixtures, roofs, pipes, and windows. Prior to the early 1900s, uses of Lead in the United States were primarily for ammunition, brass, burial vault liners, ceramic glazes, Leaded glass and crystal, paints or other protective coatings, pewter, and water lines and pipes. With the growth in production of public and private motorized vehicles and the associated use of starting-lighting-ignition (SLI) Lead-acid storage batteries and terne metal for gas tanks after World War I, demand for Lead increased. Most of these uses for Lead continued to increase with the growth in population and the national economy. Contributing to the increase in demand for Lead was the use of Lead as radiation shielding in medical analysis and video display equipment and as an additive in gasoline. In Iran, Lead has known since 3rd millennium before Christ. Nowadays Iran has many large mines of Lead such as Angooran, Nakhlak, etc. So Iran is one of the biggest Lead Suppliers in Middle East. Marjan Mineral Company has a great trading communication with most of Lead mines, and can provide all necessary things for exporting their products. Read more . . .



Different types of Lead Ores
The abundance of Lead in the Earth's crust is estimated to be between 13 and 20 parts per million. It ranks in the upper third among the elements in terms of its abundance. The more important Lead minerals are:
  • Galena (PbS, 86% Pb)
  • Anglesite (PbSO4, 68% Pb)
  • Cerussite (PbCO3, 77% Pb)


Lead Usages:
Prior to the early 1900s, Lead was used in the United States primarily in ammunition, burial vault liners, ceramic glazes, Leaded glass and crystal, paints or other protective coatings, pewter, and water lines and pipes. Following World War I, the demand for Lead increased because of growth in the production of motorized vehicles, many of which use Lead-acid batteries to start their engines. The use of Lead as radiation shielding in medical analysis and video display equipment and as an additive in gasoline also contributed to an increase in the demand for Lead. Read more . . .

Molybdenum

Molybdenum is a chemical element with symbol Mo. Molybdenum does not occur naturally as a free metal on Earth, but rather in various oxidation states in minerals. Molybdenum is one of the Copper paragenesis. The most important application of Molybdenum is in steel alloys. Alloys that are made by Molybdenum have strategic uses in aviation industries. Cathodic Copper production of Iran exceeds 200000 ton in year. So Iran has a great potential to produce Molybdenum as byproduct of Copper. Major raw materials for production of Molybdenum are separated from Copper with leaching. According to the published statistics by United States Geological Survey (USGS), Iran has 2.33 percent of Molybdenum production in 2012. So Iran is one of the best Molybdenum Supplier in the world. Marjan Mineral Company honorably can provide suitable conditions for Molybdenum Exporting. Read more . . .


Molybdenum Usages:
  • Molybdenum has a very high melting point so it is produced and sold as a grey powder. Many Molybdenum items are formed by compressing the powder at a very high pressure.
  • Most Molybdenum is used to make alloys. It is used in steel alloys to increase strength, hardness, electrical conductivity and resistance to corrosion and wear. These ‘moly steel’ alloys are used in parts of engines. Other alloys are used in heating elements, drills and saw blades. Read more . . .

Copper Ore

What is Copper Ore?
Copper is a chemical element with symbol Cu. It is a ductile metal with very high thermal and electrical conductivity. Pure Copper is soft and malleable; a freshly exposed surface has a reddish-orange color. It is used as a conductor of heat and electricity, a building material, and a constituent of various metal alloys. Its compounds are commonly encountered as Copper salts, which often impart blue or green colors to minerals such as azurite and have been widely used historically as pigments. Architectural structures built with Copper corrode to give green verdigris (or patina). Decorative art prominently featuresCopper, both by itself and as part of pigments. These are the most common Copper Ores in nature:

  • Chalcopyrite (CuFeS2, 34.5% Cu)
  • Chalcocite (Cu2S, 79.8% Cu)
  • Covellite (CuS, 66.5% Cu)
  • Bornite (2Cu2S•CuS•FeS, 63.3% Cu)
  • Malachite (CuCO3•Cu(OH)2, 57.3% Cu)
  • Azurite (2CuCO3•Cu(OH)2, 55.1% Cu)
  • Cuprite (Cu2O, 88.8% Cu)

Among mentioned items, Chalcopyrite and Chalcocite are very important. The largest source of Copper is from porphyry ore deposits in which one or a combination of the aforementioned minerals occurs. A typical Copper sulphide ore contains various levels of iron sulphide types that generally include pyrite (FeS2) and Chalcopyrite. Often gold and silver are present which may either be associated with the sulphides or are free. The gangue particles can consist of a range of silicate minerals from quartz to Talc and clays. Carbonate mineral gangue can also be present. Read more . . .




Copper Ore Usages:Copper is extracted from Copper ore in Copper processing factories. The usage of Copper can be significantly categorized as below:
  • In Communication Sector: Copper products are being used for both long and short-range cables, wires, pipes and links. Copperis also widely used in making of PCB (Printed Circuit Board) for computers and electronic equipments.
  • In Electricity & Energy Sector: Copper is a best conductor of electricity and heat. It can be easily transformed to alloy i.e. combined with another metal to make new alloys like bronze and brass. These alloys are stronger, harder, and resistant to corrosion as compared to pure Copper.
  • In Plumbing and Heating: Copper tubes are the standard plumbing material for potable water and heating systems. It is a preferred material of professional plumbers and heating engineers. Read more . . .

Iron Ore

Iron is very important and strategic commodity and has an undeniable role in genesis, growth and development of modern advanced civilization. Indeed maybe there is no other material which can be compared with influence of Iron in mankind life. Abundance of Iron and its special characteristics marginalized the other minerals so soon. According to the available evidences, Iron was extracted in middle of second millennium B.C. by Far East people for first time. Usage of Iron widely extended in neighbors specially Iran so quickly. The oldest objects was found in Iran belong to Iron era (about 1200-1450 years B.C.), but due to few quantity, It seems, they were imported from other places by the spoils of war. After 1200 years B.C. Iron was produced in Iran widely and many different tools were made by Iron. According to the above mentioned, Iron Ore mining in Iran has a big history. Today Iran is one of the best exporters of Iron Ores in Middle East and has lots of large Iron mines such as Choghart, Chador Malu, Sangan, Bafgh and etc. It's Marjan Mineral Company's honor to have a great trading communication with many of Iron mines in Iran. Marjan Mineral Company can do all necessary actions for Iron Ore exporting. Read more . . .


Iron Ores are rocks and minerals which economically contain metallic Iron. Iron oxides are the major component of Iron Ores. They have various colors from dark grey, bright yellow, deep purple, to rusty red. These are common Iron minerals:
  • Magnetite (Fe3O4, 72.4% Fe)
  • Hematite (Fe2O3, 69.9% Fe)
  • Goethite (FeO(OH), 62.9% Fe)
  • Limonite (FeO(OH).n(H2O))
  • Siderite (FeCO3, 48.2% Fe)

Hematite and Magnetite are the most abundant and economic minerals of Iron. Iron Ore is the raw material used to make pig Iron, which is one of the main raw materials to make steel. Most of the mined Iron Ore is used in steel industry. Perhaps only Oil and Gold has more importance than Iron in global economy.




Iron Ore Usages:
Iron ore is usually smelted to produce pig Iron (metallic Iron), which is used to make steel. It is for this reason Iron is perhaps one of the most important metals used in developed and developing economies. There is also wrought Iron (low in carbon) and cast Iron (otherwise known as pig Iron), and corrugated Iron structural sheeting, a recognizable material in the buildings throughout the Australian outback. The pure Iron metal is strongly magnetic, melts at 1528°C. Magnetite ore is used to remove impurities in coal washing, and its magnetic qualities enable recovery and reuse. Read more . . .

Wednesday, May 13, 2015

About Us

Marjan Mineral Group is a mineral exporting department which has lots of facilities to make trading communications and has been established in 2014. Marjan Mineral Group's activities are divided into five categories:

  • Minerals
  • Cements
  • Oil and Gas Industries
  • Industrial Pigments
  • Gemstones

As you know, Iran has a great potentiality to supply many of necessary minerals for major industries, the best kinds of cements and even gemstones. It is Marjan Mineral Group's honor to provide suitable conditions for exporting Iran's industrial products to all around the world. Read more . . .