Recarburant carbon graphite powder calcined petcoke petroleum coke
- Ref Price:
-
- Loading Port:
- Dalian
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t
- Supply Capability:
- 500000 m.t/month
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Specifications of Recarburizer for Steelmaking:
As an ideal carbon additive and intermediate reactor
it has been widely used in different indust
Recarburizer for steelmaking
- F.C.: 90%min
ASH: 8%max
V.M.: 2%max
S: 0.5%max
MOI: 1%max
- F.C.: 93%min
ASH: 6%max
V.M.: 1%max
S: 0.5%max
MOI: 1%max
- F.C.: 95%min
ASH: 4%max
V.M.: 1%max
S: 0.5%max
MOI: 1%max
We also can supply the size is as customers' requirements.
- Q:What are the impacts of carbon emissions on the spread of infectious diseases?
- The spread of infectious diseases is significantly impacted by carbon emissions. When fossil fuels like coal, oil, and natural gas are burned, they release large amounts of carbon dioxide (CO2) and other greenhouse gases into the atmosphere. These emissions contribute to climate change, which in turn affects the distribution and transmission of various infectious diseases. Changes in temperature are one of the main ways carbon emissions influence the spread of infectious diseases. As global temperatures rise, it creates favorable conditions for disease-causing agents and their vectors to survive and multiply. For example, warmer temperatures can expand the geographic range of disease-carrying insects like mosquitoes, which transmit diseases such as malaria, dengue fever, and Zika virus. Carbon emissions causing climate change can also disrupt ecosystems and alter the behavior of animals that serve as hosts or reservoirs for infectious diseases. Changes in migration patterns, breeding cycles, and hibernation can affect disease dynamics, making them harder to control. For instance, warmer temperatures may lead to an increase in tick populations, raising the risk of tick-borne diseases like Lyme disease. Moreover, carbon emissions contribute to air pollution, which negatively impacts respiratory health. Pollutants like particulate matter and nitrogen dioxide weaken the immune system, making individuals more vulnerable to respiratory infections such as influenza and pneumonia. These pollutants also worsen respiratory symptoms in people already infected with respiratory diseases. The effects of carbon emissions on the spread of infectious diseases extend beyond humans. Changes in climate patterns can disrupt agricultural systems, resulting in food insecurity and malnutrition. These conditions weaken the immune systems of vulnerable populations, making them more susceptible to infectious diseases. Recognizing the link between carbon emissions and the spread of infectious diseases is crucial in order to mitigate their impacts. Reducing carbon emissions by transitioning to cleaner energy sources and adopting sustainable practices can help mitigate climate change and limit the expansion of disease vectors. Additionally, investing in public health infrastructure and surveillance systems can improve our ability to detect and respond to outbreaks, minimizing their spread and impact on human populations.
- Q:Why is the solubility of carbon in austenite larger than that in ferrite?
- The carbon is soluble in the FCC -fe, forming austenite; the carbon dissolves in the body centered cubic alpha -fe to form ferrite. The gap radius of BCC (0.291,0.154) and the gap radius of face centered cubic (0.225,0.414) are large.
- Q:How is carbon stored in the Earth's crust?
- Carbon is stored in the Earth's crust through various geological processes such as the formation of sedimentary rocks, the burial of organic matter, and the formation of fossil fuels. These processes involve the accumulation and preservation of carbon-rich material over millions of years, resulting in the storage of carbon in the form of minerals, organic compounds, and hydrocarbons within the Earth's crust.
- Q:Carbon injection molding machine heating several degrees
- The quick test method for judging drying effect is to use the "air injection" on the injection molding machine". If the material flowing slowly from the nozzle is uniform and transparent, light silver strips and bubbles, is qualified. This method applies to all plastics.The melt viscosity of PC is much larger than that of PA, PS, PE, and the flowability is poor. Melt flow properties close to Newtonian fluid. The viscosity of the melt shear rate had little effect, and is very sensitive to changes in temperature, therefore, only by adjusting the molding processing temperature, viscosity can effectively control PC.The selection of molding temperature is relative to the average molecular weight of the resin and its distribution, the shape and size of the product, the type of the injection molding machine, and so on. It is generally controlled in the range of 250~310 centigrade. For injection molding, the resin with relatively low average molecular weight should be selected, MFR is 5 to 7g/10min; complex shape or thin wall products. Molding temperature should be high, 285~305 degrees; and thick wall products, molding temperature is slightly lower, to 250~280 degrees. Different injection molding machine, molding temperature is not the same. The screw type is 260~285 degrees, and the plunger type is 270~310 degrees centigrade. The setting of the material temperature is in the form of front high and low, near the end of the hopper, the temperature of the barrel should be controlled above the softening temperature of PC, that is greater than 230 degrees, to reduce the material resistance and injection pressure loss. In spite of increasing molding temperature, melt filling is beneficial. But not more than 230 DEG C, otherwise PC will degrade, make the products become darker in color, appear on the surface of silver, dark, black spots, bubbles and other defects, at the same time, the physical and mechanical properties will be significantly decreased.
- Q:What are the different types of carbon-based polymers?
- Carbon-based polymers come in various types, each possessing unique properties and applications. Some commonly encountered variants include: 1. Polyethylene (PE): Esteemed for its exceptional strength and chemical resistance, PE is extensively utilized in packaging materials, plastic bottles, and pipes. 2. Polypropylene (PP): PP is akin to PE, but it boasts a higher melting point and superior heat resistance. This makes it a popular choice for automotive parts, textiles, and food packaging. 3. Polystyrene (PS): PS is a lightweight and rigid polymer frequently employed in packaging materials, disposable utensils, and insulation. 4. Polyvinyl chloride (PVC): PVC is a versatile polymer that can be either rigid or flexible based on the additives employed. It finds common application in pipes, electrical insulation, and flooring. 5. Polyethylene terephthalate (PET): PET is a robust and lightweight polymer commonly found in beverage bottles, food containers, and synthetic fibers. 6. Polyurethane (PU): PU is a flexible and durable polymer utilized in foams, coatings, adhesives, and textiles. 7. Polycarbonate (PC): PC is a robust and transparent polymer regularly utilized in eyeglass lenses, safety goggles, and electronic components. 8. Phenolic resins: Renowned for their exceptional heat resistance, these polymers are commonly employed in coatings, adhesives, and electrical components. These examples represent only a fraction of the diverse range of carbon-based polymers available. Each type possesses specific properties and applications, rendering them suitable for a wide array of industries and products.
- Q:How does carbon affect the formation of air pollution in urban areas?
- Air pollution in urban areas is significantly influenced by carbon, which exists in the form of carbon dioxide (CO2) and carbon monoxide (CO). Urban areas are characterized by high population density and intense human activities, resulting in increased emissions of carbon-based pollutants. The burning of fossil fuels like coal, oil, and natural gas releases carbon dioxide into the atmosphere, contributing to global warming and climate change. In urban areas, the combustion of fossil fuels for energy production, transportation, and heating purposes emits substantial amounts of carbon dioxide. The accumulation of CO2 in the atmosphere traps heat, causing the urban heat island effect and exacerbating air pollution issues. Another carbon-based pollutant, carbon monoxide, primarily originates from vehicle exhausts and industrial processes. In urban areas with heavy traffic congestion, carbon monoxide levels tend to be high. This gas is particularly harmful as it impairs the blood's oxygen-carrying ability, resulting in various health problems, especially for individuals with pre-existing respiratory conditions. Moreover, the presence of carbon in urban areas promotes the formation of secondary air pollutants like ozone and particulate matter. Carbon reacts with other pollutants, such as nitrogen oxides (NOx) and volatile organic compounds (VOCs), under sunlight, leading to the creation of ground-level ozone. Ozone is a harmful gas that causes respiratory issues and harms vegetation. Additionally, carbon-based pollutants contribute to the generation of fine particulate matter (PM2.5) in urban areas. These particles are small enough to be inhaled deep into the lungs, causing respiratory and cardiovascular problems. Particulate matter also reduces visibility, leads to smog formation, and deposits harmful substances on surfaces. To combat air pollution in urban areas, it is crucial to reduce carbon emissions. This can be achieved through various strategies, including promoting clean energy sources, implementing stricter emission standards for vehicles and industries, and encouraging sustainable transportation options like public transit and cycling. By addressing carbon emissions, we can effectively reduce air pollution and enhance the overall air quality in urban areas, resulting in healthier and more sustainable cities.
- Q:How does carbon dioxide affect the growth of marine organisms?
- Carbon dioxide affects the growth of marine organisms in several ways. Firstly, increased levels of carbon dioxide in the ocean can lower the pH, leading to ocean acidification. This change in acidity can have detrimental effects on the growth and development of marine organisms, especially those with calcium carbonate shells or skeletons, such as corals, mollusks, and some plankton species. High levels of carbon dioxide can hinder the ability of these organisms to build and maintain their structures, making them more vulnerable to predation and impacting their overall growth and survival. Furthermore, increased carbon dioxide levels can also affect the physiology and metabolism of marine organisms. Some studies have shown that high levels of carbon dioxide can disrupt the functioning of enzymes responsible for various biological processes, including growth and reproduction. This can lead to reduced growth rates, impaired reproductive success, and overall decreased fitness of marine organisms. Additionally, elevated carbon dioxide levels can also indirectly affect marine organisms by altering the availability and distribution of other important nutrients and resources. For example, increased carbon dioxide can influence the solubility of minerals and trace elements, affecting their bioavailability to marine organisms. This can disrupt nutrient cycling and limit the availability of essential nutrients necessary for growth and development. Overall, the increase in carbon dioxide levels due to human activities can have significant negative impacts on the growth and development of marine organisms. These impacts can disrupt entire marine ecosystems, with potentially serious consequences for biodiversity and the functioning of these ecosystems.
- Q:What are the consequences of increased carbon emissions on public health systems?
- Increased carbon emissions have significant consequences on public health systems. One of the most prominent effects is the exacerbation of respiratory diseases such as asthma, chronic obstructive pulmonary disease (COPD), and bronchitis. Carbon emissions contribute to the production of fine particulate matter (PM2.5) and ground-level ozone, both of which can penetrate deep into the respiratory system and cause or worsen these conditions. Moreover, higher levels of carbon emissions are correlated with an increased prevalence of cardiovascular diseases. Fine particulate matter and other pollutants released from carbon-emitting sources can enter the bloodstream, leading to inflammation, oxidative stress, and the development of atherosclerosis. Over time, this can result in heart attacks, strokes, and other cardiovascular complications. Climate change, driven by carbon emissions, also impacts the spread of infectious diseases. Rising temperatures and altered precipitation patterns create favorable conditions for the expansion of disease vectors like mosquitoes and ticks, leading to the transmission of diseases such as malaria, dengue fever, Lyme disease, and Zika virus. Additionally, extreme weather events and natural disasters associated with climate change can disrupt healthcare infrastructure and compromise access to essential services, further impacting public health systems. Furthermore, mental health is also affected by increased carbon emissions. The environmental degradation caused by carbon emissions contributes to feelings of anxiety, stress, and depression, often referred to as eco-anxiety or climate grief. The loss of biodiversity, destruction of natural habitats, and the overall uncertainty surrounding the future can have detrimental effects on individuals and communities, requiring additional resources and support from public health systems. In summary, increased carbon emissions have far-reaching consequences on public health systems. They contribute to the prevalence of respiratory and cardiovascular diseases, facilitate the spread of infectious diseases, and impact mental health. Addressing carbon emissions and implementing sustainable practices are essential to mitigating these consequences and safeguarding the well-being of individuals and communities.
- Q:What is carbon offsetting in the travel industry?
- Carbon offsetting in the travel industry refers to the practice of compensating for the carbon emissions produced during travel activities by investing in projects that reduce or remove an equivalent amount of greenhouse gases from the atmosphere. As travel contributes significantly to global carbon emissions, carbon offsetting has emerged as a way for individuals and businesses to take responsibility for their environmental impact and strive towards more sustainable practices. When individuals or companies choose to offset their travel emissions, they calculate the carbon footprint of their trip based on factors like distance traveled, mode of transport, and fuel consumption. This calculation helps determine the amount of carbon dioxide equivalent emitted during the journey. To offset these emissions, they then invest in projects that reduce or remove the same amount of greenhouse gases from the atmosphere, such as renewable energy projects, reforestation efforts, or energy efficiency initiatives. The concept of carbon offsetting aims to achieve carbon neutrality, where the emissions produced are balanced by an equivalent reduction or removal of emissions elsewhere. By investing in offset projects, travelers and travel companies can effectively mitigate their environmental impact and contribute to overall efforts in combating climate change. Carbon offsetting in the travel industry not only helps reduce the carbon footprint of individual trips but also encourages the development of sustainable practices within the tourism sector. It provides travelers with the opportunity to minimize their environmental impact by supporting projects that promote renewable energy, conserve biodiversity, or improve local communities' livelihoods. However, it is essential to ensure that carbon offset projects are credible and deliver genuine emission reductions. Verified standards and certifications, such as the Gold Standard or Verified Carbon Standard, help ensure the integrity and transparency of offset projects. It is also important to prioritize efforts in reducing emissions directly, such as using more fuel-efficient transportation or opting for low-carbon alternatives, before relying solely on offsetting. In conclusion, carbon offsetting in the travel industry allows individuals and businesses to take responsibility for their carbon emissions by investing in projects that reduce or remove greenhouse gases. It is a proactive approach towards minimizing the environmental impact of travel and promoting sustainable practices within the tourism sector.
- Q:How is carbon formed?
- Various natural processes contribute to the formation of carbon, primarily the life and death cycle of living organisms. The process of photosynthesis in plants initiates carbon formation, as they utilize sunlight, water, and atmospheric carbon dioxide to produce glucose. This glucose is then transformed into other organic compounds, including carbohydrates, fats, and proteins, which are the fundamental constituents of all living beings. When plants and animals perish, decomposers like fungi and bacteria break down their remains and waste materials. During this decomposition, carbon is released back into the environment in the form of carbon dioxide or methane gas. Additionally, some organic matter may become buried beneath sediment layers, where it undergoes fossilization over millions of years. Through a combination of heat and pressure, this fossilization process converts the organic matter into fossil fuels like coal, oil, and natural gas, which are abundant sources of carbon. In addition to biological processes, carbon can also form through geological processes. Volcanic eruptions discharge carbon dioxide into the atmosphere, and over extended periods, this carbon dioxide can dissolve in water and react with minerals to create rocks like limestone. These rocks function as carbon sinks, storing substantial amounts of carbon over geological timescales. In general, the formation and cycling of carbon involve a complex interaction between biological and geological processes, significantly contributing to the equilibrium of carbon in the Earth's atmosphere and supporting life as we currently understand it.
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Recarburant carbon graphite powder calcined petcoke petroleum coke
- Ref Price:
-
- Loading Port:
- Dalian
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t
- Supply Capability:
- 500000 m.t/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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