On April 23, 2002, Altair Nanomaterials Inc. applied for a patent for invention. The process is neither a sulfuric acid production process, are not chlorinated production process, it should be said that the production of hydrochloric acid method process, the process as shown below: titanium iron ore leaching takes hydrochloride, separating the insoluble residue. The leaching solution is subjected to high-valent iron reduction to low-cost iron, cooling and crystallization of ferrous chloride, and separation of ferrous chloride; and the titanium-containing leaching solution after separating ferrous chloride is subjected to the first solvent extraction, and the extraction phase is contained Titanium and high-iron solution, the raffinate phase is a ferrous-containing aqueous solution, the return process is used to regenerate hydrochloric acid, and the process is returned to the leaching process; the titanium-containing extract phase is subjected to a second extraction, and the extracted phase is a titanium-containing aqueous solution, and the raffinate phase For the aqueous solution containing high iron, the hydrochloric acid regeneration step is returned; the titanium chloride solution after extraction and purification is subjected to hydrolysis, and the best hydrolysis method is spray heating hydrolysis to obtain metatitanic acid, and the hydrochloric acid and water in the gas phase are returned to the hydrochloric acid regeneration system. The hydrolyzed metatitanic acid is subjected to calcination, wet milling, inorganic coating, filtration washing, drying, steam powdering and packaging. The process can produce nano titanium dioxide, anatase and rutile titanium dioxide. The ferrous chloride separated by cooling and crystallization is pyrolyzed to obtain an iron oxide solid, and the gas is a leaching step in which hydrogen chloride and water vapor are returned. It is characterized in that hydrochloric acid is recycled, and by-products only produce iron oxide slag. The company is a NASDAQ-listed company in the United States. In 1999, it purchased new process technology and experimental equipment from BHP, which is based in Australia. In order to strengthen the development of new processes, 15 scientists who participated in the research were hired to Otto in 2001. The research on the production process of new titanium dioxide was continued. In 2002, the first patent was approved in the United States. 1910 is the age of the Clarence Sulfuric Acid Law, 1950 is the era of DuPont Chlorination, and the 21st century is the age of the Otell Hydrochloric Acid Law. Bracket Aluminium Profile Extrusion Dies
Aluminum alloy bracket is a support structure made of aluminum alloy material, which is commonly used in construction, automobile, aerospace and other fields. Aluminum alloy brackets are lightweight, high-strength, and corrosion-resistant. They can withstand greater weight and pressure while having good stability and durability. Aluminum alloy brackets are often used in construction to build temporary support structures, suspended ceilings, and install mezzanines, etc., which can provide stable support and protection. In the automotive and aerospace fields, aluminum alloy brackets are often used to manufacture car body structures and aircraft fuselages to reduce overall weight and increase load capacity. The use of aluminum alloy brackets can improve the safety and efficiency of the project and has good environmental performance.
Comparison between aluminum alloy brackets and iron brackets
The comparison between aluminum alloy brackets and iron brackets can mainly be compared from the following aspects:
1. Material: The aluminum alloy bracket is made of aluminum alloy material, while the iron bracket is made of iron material. Aluminum alloys have higher strength and corrosion resistance, while iron materials are stronger and more durable.
2. Weight: Aluminum alloy brackets are relatively light and lighter than iron brackets. This makes the aluminum bracket easier to handle and install.
3. Strength: Iron brackets are relatively strong and stable and can withstand greater weight and pressure. The aluminum alloy bracket has low strength and is not suitable for carrying heavy objects.
4. Corrosion resistance: Aluminum alloy brackets have good corrosion resistance, are not easy to rust and corrode, and are suitable for outdoor environments. Iron brackets are prone to rust and require anti-corrosion treatment.
5. Cost: Generally, the cost of aluminum alloy brackets is higher, while the cost of iron brackets is relatively low.
To sum up, aluminum alloy brackets are suitable for scenes with light load and high corrosion resistance requirements, such as outdoor environments; while iron brackets are suitable for scenes that carry larger weights and have lower cost requirements. When choosing a bracket, you need to choose it based on your specific needs.
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The company said that the advantages of the new process for the production of titanium dioxide are: the use of low-cost titanium raw materials; low energy consumption; can produce sharp state as needed, can also produce rutile products and nano-scale titanium dioxide; less waste generation, no deep wells Landfill; lower cost than sulfuric acid and chlorination; and investment costs are comparable.
The production process only completed the pilot test of 5t per day, and its industrial scale production equipment had to wait for good news.