Recarburizer FC80-90 with stable quality

Recarburizer FC80-90 with stable quality System 1

Recarburizer FC80-90 with stable quality

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 20 m.t.

Supply Capability:: 3000 m.t./month

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Packaging & Delivery

25kgs/50kgs/1ton per bag or as buyer's request

Specifications

Calcined Anthracite
Fixed carbon: 90%-95%
S: 0.5% max
Size: 0-3. 3-5.3-15 or as request

It used the high quality anthracite as raw materials through high temperature calcined at over 2000 by the DC electric calciner with results in eliminating the moisture and volatile matter from anthracite efficiently, improving the density and the electric conductivity and strengthening the mechanical strength and anti-oxidation. It has good characteristics with low ash, low resistvity, low sulphur, high carbon and high density. It is the best material for high quality carbon products.

Advantage and competitive of caclined anthracite:

1. strong supply capability

2. fast transportation

3. lower and reasonable price for your reference

4.low sulphur, low ash

5.fixed carbon:95% -90%

6..sulphur:lower than 0.3%

General Specification of Calcined Anthracite:

FC	80	83	85	88	90
ASH	16	14	13	10	8.5
V.M.	3	3	2	2	1.5
S	0.5	0.5	0.5	0.5	0.35
MOISTURE	2	2	1	1	0.5

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Recarburizer FC80-90 with stable quality

We are also strong at below materials, please contact us if you are interested in any of them:

Calcined Petroleum Coke

Carbon Electrode Paste

Carbon Electrode

Q: How does carbon contribute to the structure of DNA?: Carbon is a crucial element in the structure of DNA. It plays a fundamental role in the formation of the sugar-phosphate backbone of the DNA molecule. The backbone is composed of alternating sugar and phosphate molecules, and the sugar molecule in DNA is deoxyribose. Carbon is a major component of deoxyribose, with each deoxyribose sugar containing five carbon atoms. These carbon atoms provide the backbone with stability and rigidity, allowing it to maintain the overall structure of the DNA molecule. Furthermore, carbon is also involved in the formation of the nitrogenous bases that make up the rungs of the DNA ladder. There are four nitrogenous bases in DNA: adenine (A), guanine (G), cytosine (C), and thymine (T). Carbon atoms are present in the structure of each of these bases, contributing to their unique chemical properties. Carbon-containing functional groups, such as amino and keto groups, participate in hydrogen bonding and stacking interactions that determine the base pairing within the DNA double helix. In summary, carbon is an essential component of DNA's structure. It contributes to the stability and rigidity of the sugar-phosphate backbone and is also involved in the formation of the nitrogenous bases. The unique properties of carbon allow DNA to maintain its double helix structure and facilitate the accurate transmission of genetic information.

Q: What is the role of carbonation in carbonated drinks?: The role of carbonation in carbonated drinks is to provide the refreshing and effervescent sensation that is characteristic of these beverages. Carbonation is the process of dissolving carbon dioxide gas into a liquid, typically water, under pressure. This results in the formation of carbonic acid, which adds a tangy flavor to the drink. Carbonation serves several purposes in carbonated drinks. Firstly, it enhances the taste by adding a unique bubbly sensation that stimulates the taste buds and gives a refreshing mouthfeel. The effervescence created by the carbonation also contributes to the overall sensory experience of the drink, making it more enjoyable to consume. Furthermore, carbonation acts as a natural preservative in carbonated drinks. The carbon dioxide gas inhibits the growth of bacteria and other microorganisms, thereby extending the shelf life of the beverage. This is particularly important for soft drinks that are often stored for extended periods before consumption. In addition to taste and preservation, carbonation plays a role in the presentation of carbonated drinks. The release of carbon dioxide gas from the liquid creates bubbles and fizz, making the drink visually appealing and enticing. This visual appeal is often associated with a feeling of luxury and indulgence. Overall, carbonation is an essential component of carbonated drinks, providing taste, preservation, and visual appeal. It enhances the sensory experience and contributes to the overall enjoyment of these beverages.

Q: What are the impacts of carbon emissions on urban environments?: Carbon emissions have significant impacts on urban environments. One of the most notable effects is air pollution. The release of carbon dioxide and other greenhouse gases from vehicles, factories, and power plants contributes to the formation of smog and harmful particulate matter in cities. This pollution poses serious health risks to residents, particularly those with respiratory conditions, and can lead to increased hospital admissions and premature deaths. Furthermore, carbon emissions contribute to climate change, which has wide-ranging consequences for urban areas. Rising temperatures and changing weather patterns can intensify heatwaves, leading to heat-related illnesses and deaths. Increased frequency and severity of extreme weather events, such as hurricanes and floods, can cause significant infrastructure damage and disrupt essential services like water supply and transportation. Urban areas also face the threat of rising sea levels due to carbon emissions. Coastal cities are particularly vulnerable to flooding and erosion as the melting of polar ice caps and thermal expansion of seawater continue. This can result in the loss of valuable land, displacement of populations, and damage to critical infrastructure, including buildings, roads, and sewage systems. Carbon emissions also contribute to the urban heat island effect, wherein cities experience higher temperatures compared to surrounding rural areas. This is due to the absorption and retention of heat by concrete, asphalt, and other urban materials. The urban heat island effect can exacerbate the health risks associated with heatwaves and increase energy demands for cooling, further contributing to carbon emissions. Finally, carbon emissions have economic impacts on urban environments. The costs of mitigating and adapting to the effects of climate change, such as implementing climate-resilient infrastructure and disaster response measures, can be significant. Additionally, the health consequences of air pollution and extreme weather events can lead to increased healthcare costs and productivity losses. To mitigate these impacts, efforts should be made to reduce carbon emissions through transitioning to cleaner energy sources, promoting sustainable transportation options, and implementing energy-efficient practices in buildings. Urban planning and design should also prioritize green spaces, tree planting, and the use of reflective and permeable materials to combat the urban heat island effect. By addressing carbon emissions in urban environments, we can create healthier, more resilient cities for both current and future generations.

Q: How are carbon fibers produced?: Carbon fibers are created using a multi-step process known as carbonization. To begin, a precursor material, typically a polymer-based substance like polyacrylonitrile (PAN), rayon, or pitch, is utilized. The initial step entails spinning the precursor material into lengthy, thin fibers. This can be accomplished through different methods, such as melt spinning, dry spinning, or wet spinning, depending on the specific precursor employed. Once the fibers are formed, they undergo a stabilization process. This involves subjecting the fibers to heat in the presence of oxygen at a relatively low temperature, usually around 200-300 degrees Celsius. Stabilization serves to eliminate any volatile components from the fibers and align the molecular structure in a manner that enhances its resistance to heat and strength. Following stabilization, the fibers are exposed to high-temperature treatment called carbonization. This process occurs in an oxygen-deprived furnace, typically at temperatures exceeding 1000 degrees Celsius. During carbonization, the fibers are heated to a point where a majority of the non-carbon atoms are expelled, resulting in a highly pure carbon structure. The final step in carbon fiber production involves surface treatment. This entails the application of a coating or treatment to enhance the fibers' bonding properties and adhesion with other materials. Surface treatment can be achieved through various methods, including sizing, coating, or plasma treatment. In summary, the production of carbon fibers combines spinning, stabilization, carbonization, and surface treatment processes to yield fibers with exceptional strength, stiffness, and lightness. These properties make carbon fibers highly sought after in diverse industries, including aerospace, automotive, sports, and construction.

Q: Why is the solubility of carbon in austenite larger than that in ferrite?: Its properties are similar to that of pure iron, and its plasticity and toughness are good, and its strength and hardness are low. It is usually massive or flaky in steel.The austenite structure is a face centered cubic lattice with a gap radius (0.414~0.225). Because of the larger size of the lattice gap, the solubility of carbon in gamma -Fe is relatively large. It has good plasticity.

Q: How does carbon impact the growth and development of plants?: Carbon is essential for the growth and development of plants as it is a key component of photosynthesis. Through this process, plants convert carbon dioxide into glucose, their main source of energy. Carbon also plays a crucial role in forming the structural molecules of plants, such as cellulose, lignin, and proteins. Overall, carbon is vital for the overall health, productivity, and survival of plants.

Q: How does carbon impact the availability of freshwater resources?: Carbon can impact the availability of freshwater resources through its role in climate change. Increasing carbon emissions lead to a rise in global temperatures, causing changes in precipitation patterns and melting of glaciers. These changes can result in droughts, reduced snowpack, and altered river flows, ultimately affecting the availability and quality of freshwater resources.

Q: How is carbon dating used to determine the age of fossils?: Carbon dating is used to determine the age of fossils by measuring the amount of radioactive carbon-14 remaining in the fossil. Since carbon-14 decays at a predictable rate, scientists can estimate the age of the fossil by comparing the ratio of carbon-14 to stable carbon-12 isotopes. This method is most effective for fossils up to 50,000 years old.

Q: What is coal?: Coal, a sedimentary rock primarily composed of carbon, is black or brownish-black in color and contains various other elements such as hydrogen, sulfur, oxygen, and nitrogen. It forms from the remains of plants that lived and died millions of years ago, accumulating in swampy environments. Over time, the layers of plant material experience high pressure and heat, resulting in coal formation. As one of the most abundant fossil fuels on Earth, coal has been utilized as an energy source for centuries. It is typically extracted from underground or surface mines and exists in different forms, including anthracite, bituminous, sub-bituminous, and lignite, each with varying carbon content and heating value. Due to its high carbon content, coal is primarily employed for electricity generation and fueling industrial processes. When burned, it releases heat energy that is converted into electricity through the utilization of steam turbines. Nevertheless, the combustion of coal also emits greenhouse gases and other pollutants, contributing to air pollution and climate change. Apart from its use as a fuel, coal finds application in the production of steel and cement, as well as various industrial processes. It is a versatile resource that has played a pivotal role in the advancement of modern societies. However, its environmental impact and finite nature have spurred efforts to transition towards cleaner and more sustainable energy sources.

Q: What is the boiling point of carbon?: The boiling point of carbon, a nonmetallic element, depends on its allotrope. Carbon has multiple allotropes, including graphite and diamond, each with different physical properties. Graphite, which consists of layers of carbon atoms arranged in a hexagonal lattice, does not have a boiling point since it sublimes directly from a solid to a gas. On the other hand, diamond, which is composed of carbon atoms arranged in a three-dimensional lattice, also does not have a boiling point as it undergoes direct sublimation. Therefore, carbon does not have a boiling point in its pure elemental form.

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