For billionaires, the new crown epidemic is like a 'gold rush'! The Deutsche Presse-Agentur said on the 17th that in 2022, the wealth held by the world's top ten richest people will jump from $700 billion to $1.5 trillion, an average daily increase of $1.3 billion, an increase that exceeds the past 14 years. These 10 people The wealth held by the world’s poorest 3.1 billion people is six times greater than that of the world’s poorest 3.1 billion people. The 10 richest Germans have increased their assets from the equivalent of about 125 billion euros to about 223 billion euros since the start of the Covid-19 pandemic, An increase of about 78%. This wealth is roughly equivalent to the total wealth of the poorest 40% of the population, or 33 million Germans.
In the future, demand for spherical quartz powder will grow as fast as the wealth of the rich during the pandemic.
Quartz powder, also known as silica powder, is a hard, wear-resistant, stable chemical properties of silicate minerals, its main mineral composition is SiO2. The color of quartz powder is milky white, or colorless translucent. The hardness is 7. The density is 2.65. Slightly soluble in KOH solution. The melting point is 1650℃.
The product with the general fineness in 120 mesh below is called quartz sand, and that more than 120 mesh is known as quartz powder. Quartz powder can be divided into nanometer silicon dioxide and spherical silica powder because of its fineness and morphology.
Quartz powder is widely used in the industry, including the glass industry, machinery industry, artificial quartz stone plate, ceramics and metallurgy, construction, chemical industry and other industries used in the number of products in dozens to hundreds of mesh, purity requirements are different; In plastics, coatings, adhesives and other industries as fillers, fineness requirements in hundreds of mesh to thousands of mesh, high purity requirements; Used in the integrated circuit industry, product mesh and purity requirements.
Quartz powder can be used as filler to add plastic, rubber, coating, etc., to improve performance, improve process characteristics, reduce costs, etc.
The hardness of paint film can be improved by adding high purity quartz powder into the coating. High purity spherical quartz powder has special optical properties that conventional silicon dioxide does not have. It has strong UV absorption and red-light reflection characteristics. The spectrophotometer test shows that the absorption rate of ultraviolet light within the wavelength of 400mm is as high as 70%. It can be added to the coating to form a shielding effect, to achieve the purpose of UV aging and thermal aging, while increasing the heat insulation of the coating. The high purity quartz powder was added to the coating, which obviously weakened the radiation degree of UV light to the coating, and thus reduced the curing speed of the coating.
Quartz sand can be used to remove rust because of its high hardness.
The quartz sand is installed in the sand-blasting machine, through higher air pressure or water pressure, spewed quartz sand to the metal surface of the rust, through the quartz sand and rust surface of high-speed friction contact to achieve the effect of rust removal. Some manufacturers choose to use river sand instead of quartz sand because of its low cost. But the hardness of river sand is much lower than quartz sand, the content of silica in the two is different, quartz sand silicon content of nearly 99.9%, and the soil content of river sand is more, in the sandblasting process, river sand will be quickly broken or stand on the metal surface, cannot achieve the effect of real friction derusting, and the quartz sand for derusting. High hardness, uniform, and angular particles can be fully stable contact with the rusty surface, to achieve the effect of rust removal.
Quartz powder also has a filtering effect. Quartz powder is mainly used for water treatment to remove turbidity, soften water, and reverse osmosis pretreatment, can also be used for surface water and groundwater. It can effectively remove suspended matter, organic matter, colloid, and sediment in water.
Spherical Silica Powder Price
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New Delhi: India is seeking to increase its purchases of crude oil from Brazil, the country's oil minister said recently after meeting his Brazilian counterpart.
India is the world's third-largest importer and consumer of crude oil. Brazil currently supplies only a fraction of India's crude oil imports.
India's state-owned companies Bharat Petroleum Corp and Oil and Natural Gas Corp have invested in oil and gas exploration in Brazil.
India, which imports about 84% of its crude oil needs, is reducing its import bill by increasing biofuel use, among other things.
India's state-owned fuel retailers are increasing ethanol storage capacity by 51 percent and the country plans to double the biofuel blend in petrol to 20 percent by 2025.
India and Brazil are currently cooperating on biofuels and ethanol.
The prices of many commodities like the spherical quartz powder are expected to increase in the future.
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