Silica sand là gì

Silica Sand is quartz that over time, through the work of water & wind, has been broken down inkhổng lồ tiny granules.

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Commercial Silica Sand is widely used as a proppant by companies involved in oil và natural gas recovery in conventional and unconventional resource plays. The resource is also used in industrial processing to lớn make everyday items such as glass, construction materials, personal care products, electronics, & even renewable materials.

Industrial sand is a term normally applied to high purity silica sand products with closely controlled sizing. It is a more precise sản phẩm than comtháng concrete và asphalt gravels.


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Quartz Rock


Silica (SiO2) is the name given to lớn a group of minerals composed solely of silinhỏ & oxygene. Found most commonly in the crystalline state, it also occurs in an amorphous form resulting from weathering or plankton fossilization.

Silica sand deposits are most commonly surface-mined in open pit operations, but dredging & underground mining are also employed. Extracted ore undergoes considerable processing lớn increase the silica nội dung by reducing impurities. It is then dried and sized to lớn produce the optimum particle kích cỡ distribution for the intended application.

For industrial and manufacturing applications, deposits of silica-yielding products of at least 95% SiO2 are preferred. Silica is hard and chemically inert và has a high melting point, attributable to the strength of the bonds between the atoms. These are prized qualities in applications lượt thích foundries & filtration systems. Industrial sand’s strength, silinhỏ dioxide (SiO2) contribution, & non-reactive sầu properties make it an indispensable ingredient in the production of thousands of everyday products.


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Silica sand used in all types of specialty glass


Glassmaking: Silica s& is the primary component of all types of standard và specialty glass. It provides the essential SiO2 component of glass formulation, & its chemical purity is the primary determinant of colour, clarity, & strength. Industrial svà is used to lớn produce flat glass for building và automotive use, container glass for foods và beverages, & tableware. In its pulverized khung, ground silica is required for production of fibreglass insulation and reinforcing glass fibers. Specialty glass applications include demo tubes và other scientific tools, incandescent và fluorescent lamps, and television and computer CRT monitors.

Metal Casting: Industrial s& is an essential part of the ferrous và non-ferrous foundry industry. Metal parts ranging from engine blocks lớn sink faucets are cast in a s& and clay mold to produce the external shape, with a resin bonded core creating the desired internal shape. Silica’s high fusion point (1760°C) and low rate of thermal expansion produce stable cores & molds compatible with all pouring temperatures và alloy systems. Its chemical purity also helps prsự kiện interaction with catalysts or curing rate of chemical binders. Following the casting process, core svà can be thermally or mechanically recycled to lớn produce new cores or molds.

Metal Production: Industrial s& plays a critical role in the production of a wide variety of ferrous & non-ferrous metals. In metal production, silica sand operates as a flux to lớn lower the melting point & viscosity of the slags to make them more reactive sầu và efficient. Lump silica is used either alone or in conjunction with lime lớn achieve the desired base/acid ratio required for purification. These base metals can be further refined and modified with other ingredients lớn achieve specific properties such as high strength, corrosion resistance, or electrical conductivity. Ferroalloys are essential khổng lồ specialty steel production, & industrial s& is used by the steel and foundry industries for de-oxidation & grain refinement.

Chemical Production: Silicon-based chemicals are the foundation of thousands of everyday applications ranging from food processing to soap & dye production. In this case, SiO2 is reduced to silibé metal by coke in an arc furnace, to lớn produce the Si precursor of other chemical processes. Industrial svà is the main component in chemicals such as sodium silicate, silibé tetrachloride, và silinhỏ gels. These chemicals are used lớn produce household and industrial cleaners, to manufacture fiber optics, và to remove sầu impurities from cooking oil và brewed beverages.


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Industrial sand is the primary structural component in a wide variety of building and construction products


Construction: Industrial s& is the primary structural component in a wide variety of building & construction products. Whole grain silica is put khổng lồ use in flooring compounds, mortars, specialty cements, stucco, roofing shingles, skid resistant surfaces, and asphalt mixtures khổng lồ provide packing mật độ trùng lặp từ khóa and flexural strength without adversely affecting the chemical properties of the binding system. Ground silica performs as a functional extender khổng lồ add durability & anti-corrosion & weathering properties in epoxy-based compounds, sealants, and caulks.

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Paint & Coatings: Paint formulators select micron-sized industrial sands lớn improve the appearance and durability of architectural và industrial paint and coatings. High purity silica contributes critical performance properties such as brightness & reflectance, colour consistency, và oil absorption. In architectural paints, silica fillers improve tint retention, durability, and resistance lớn dirt, mildew, cracking, and weathering. Low oil absorption allows increased pigment loading for improved finish colour. In marine và maintenance coatings, the durability of silica imparts excellent abrasion và corrosion resistance.


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Ground silica is a component of the gLaser và body formulations of all types of ceramic products


Ceramics & Refractories: Ground silica is an essential component of the glaze và body toàn thân formulations of all types of ceramic products, including tableware, sanitary ware, và floor và wall tile. In the ceramic toàn thân, silica is the skeletal structure upon which clays and flux components attach. The SiO2 contribution is used lớn modify thermal expansion, regulate drying và shrinkage, and improve sầu structural integrity and appearance. Silica products are also used as the primary aggregate in both shape và monolithic type refractories khổng lồ provide high temperature resistance lớn acidic attachồng in industrial furnaces.

Filtration and Water Production: Industrial svà is used in the filtration of drinking water, the processing of wastewater, and the production of water from wells. Uniform grain shapes và grain form size distributions produce efficient filtration bed operation in removal of contaminants in both potable water and wastewater. Chemically inert, silica will not degrade or react when it comes in liên hệ with acids, contaminants, volatile organics, or solvents. Silica gravel is used as packing material in deep-water wells to increase yield from the aquifer by expanding the permeable zone around the well screen and preventing the infiltration of fine particles from the formation.

Recreational Products: Industrial sand even finds its way inlớn sports và recreation. Silica sand is used for golf course bunkers & greens as well as the construction of natural or synthetic athletic fields. In golf & sports turf applications, silica sand is the structural component of an inert, uncontaminated growing truyền thông media. Silica svà is also used to repair greens and khổng lồ facilitate everyday maintenance lượt thích root aeration & fertilization. The natural grain shape and controlled particle size distribution of silica provides the required permeability and compaction properties for drainage, healthy plant growth, và stability.


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Industrial sand is pumped down holes in deep well applications to lớn prop open roông chồng fissures & increase the flow rate of natural gas or oil.


Oil & Gas Recovery: Known commonly as proppant, or “frac svà,” industrial s& is pumped down holes in deep well applications lớn prop open roông chồng fissures and increase the flow rate of natural gas or oil. In this specialized application, round, whole grain deposits are used khổng lồ maximize permeability và prevent formation cuttings from entering the well bore. Silica’s hardness and its overall structural integrity combine to deliver the required crush resistance of the high pressures present in wells up to 2,450 metres deep. Its chemical purity is required to lớn resist chemical attack in corrosive environments.

General Industry Information

What is Fracking?

Fracking (fracing, hydraulic fracturing, or hydrofracking) is the most efficient method used to lớn access oil-bearing shales and limestones for the purpose of extracting oil và natural gas. Fracking is an unconventional extraction method in which hydrocarbon (oil/gas) is released from rock. In the fracking process, a vertical well is drilled for more than a kilometre và then continues horizontally once it reaches the shale layer (source rochồng oil or gas bearing formation). The well is drilled laterally for about 3,000 to lớn 5,000 feet. This creates a large enough surface area for oil or gas to flow in economic quantities. Cement is then pumped through the hole khổng lồ surround the casing. Next, the plug-and-perf method creates multiple hydraulic fractures in the horizontal well. Water, sand, and lubricant are then pumped into the well at a very high pressure. The high-pressure fluid creates additional smaller fractures or channels in the shale through which oil and natural gas reserves flow more easily. The pressure is released and the proppants (sand) are left lodged inlớn the fractures, providing an efficient conduit for the movement of fluid from the reservoir to the wellbore, allowing an efficient escape for crude oil or natural gas flow. Most wells are able to produce for 20 to 30 years without the requirement of additional fracturing.

Fracking aka the “Plug and Perf” method:

Frac Sand (often called “silica” or “silica sand”): A naturally occurring silica sand used as a proppant to lớn keep an induced hydraulic fracture open during the fracking process.

Frac S& Mineralogy: Frac s& must be greater than 99% quartz khổng lồ be suitable for use as a proppant.

Frac Svà Specifications: Roundness, highly spherical, high crush resistance, silinhỏ dioxide nội dung, & consistent kích cỡ are all important factors relating lớn high quality frac sand.To have high fluid porosity và permeability, frac sand must be well sorted khổng lồ be effective when applied. Depending on the application, different frac sand mesh kích cỡ ranges are required. 20/40 are typically used in hydraulic fracturing processes targeting oil- và liquids-rich gas recovery (i.e., larger fluid molecules) whereas finer sand grains (such as 40/70 & higher meshes) are typically used primarily in dry gas applications (i.e., smaller fluid molecules).

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Alternative Proppants: Other alternatives khổng lồ silica svà exist, including ceramic beads and resin-coated silica, but they are more costly khổng lồ produce.


Chuyên mục: Kiến Thức