Applications of Jiatong

This post was last edited by qugd on 2011-9-27 at 20:34. The following information is taken from online sources: 4-Methyl-2-pentanone; Iso-butyl methyl ketone; Iso-propylacetone; Hex-one; 4-Keto-2-methyl pentane; 4-keto-2-methyl pentane; MIBK; Methyl isobutyl ketone; 2-Pentanone, 4-methyl-. Molecular formula: C6H12O; Molecular weight: 100.16; CAS number: 108-10-1. Properties: A colorless, stable flammable liquid with a pleasant odor. Freezing point: -84°C (-80.4°F), boiling point: 116.8°C, relative density: 0.8020 (at 20/4°C), refractive index: 1.3962, flash point: 22.78°C, autoignition temperature: 460°C. It is miscible with alcohols, benzene, diethyl ether, and most organic solvents, and slightly soluble in water. Steam forms an explosive mixture with air, with an explosion limit of 1.4%–7.5% (by volume). Preparation method: It is obtained through catalytic selective hydrogenation of isopropylidene propylene. 1 ton of the product requires approximately 1,220 kg of isopropylidene propylene and 550 m3 of hydrogen. Another production process is the propylene one-step method. Preheated liquid propylene undergoes condensation, dehydration, and hydrogenation reactions in a fixed-bed reactor, under the action of bifunctional catalysts such as KON-AL2O3-Pb, Mg-SiO-Pb, cation exchange resin-palladium, zirconium phosphate-Ba, and copper-chromium, to produce MIBK. This method features a short process, low investment, high conversion rate, and low costs. The largest MIBK production facility in China was built through a partnership between Jinling Petrochemical Fertilizer Plant and Tianjin University, using the propylene one-step process; it came online in February 1995, with product purity reaching 99%. It can also be obtained by the condensation of isopropanol at atmospheric pressure. Use: This product is an excellent medium-boiling-point solvent. It is used as a mineral processing agent, a solvent for dewaxing oils, and a coloring agent in color films. It is also used as a solvent for tetracyclines, pyrethroids, and DDT, as well as in adhesives, rubber glues, and varnishes for aircraft and models. It is also an effective separating agent for some inorganic salts, capable of separating plutonium from uranium, niobium from tantalum, and zirconium from hafnium. Its peroxide is a very important initiator in the polymerization reaction of polyester resins. It is also used in the organic synthesis industry. It can also be used as an anticoagulant and diluent for ethylene-type resins. In the future, when asking about chemical substances, it’s best to use their systematic names, as this will make it easier to get help; not everyone can identify the common names you use.