liquid-liquid chemical reaction
1.℃. It was proposed that the chemical reaction between zirconium oxychloride (ZrOCl 2) and liquid aluminum is a complex process including both gas liquid reaction and solid liquid reaction. The kinetic model and the velocity of chemical reaction for ZrO 2/Al reaction, which is the key step in ZrOCl 2 Al reactive system, were established.
2.Abstract: From the viewpoint of safety technology of chemical reaction with heat release.the technical causes of getting out of control of these reactors are analyzed.Hazardous effects of the leakage of chemical reactants both on human and environment,and the existing problems in current safety technological measures are also discussed.The cooling method of jet vaporization based on the jet principle and the direct cooling by non-vaporized liquid are introduced.The development trends of the safety technology for chemical reactors are analyzed.
3.From the viewpoint of safety technology of chemical reaction with heat release.the technical causes of getting out of control of these reactors are analyzed.Hazardous effects of the leakage of chemical reactants both on human and environment,and the existing problems in current safety technological measures are also discussed.The cooling method of jet vaporization based on the jet principle and the direct cooling by non-vaporized liquid are introduced.The development trends of the safety technology for chemical reactors are analyzed.
4.Chemical industry: sodium carbonate (the production of hydrochloric acid, hypo-fluoric acid and secondary chemicals); the production of fluoride and chemical fertilizers; circulation of reaction liquid in gas absorption tower; grease extraction (sulfuric acid);reclamation and regeneration system of waste acid; transportation of strong acids between chemical plants and vehicles.
5.The new magnetic adhesive root canal filling material (NMA) was triturated on the basis of the principle of magnetic liquid. It is a new type liquid root canal filling material which has the properties of good mobility, of lower cure contraction rate, of chemical stability, of nontoxicity and no allergic reaction to the body, and of certain degree of development on the X-ray pictures.
6.Changes of nickel ion and butynediols (BOZ) concentration in electroless plating Ni-P-C-O solution were determined by UVVis spectrophotometry with high performance liquid chromatography. Thermodynamic functions, such as ΔGTφ, ΔH and ΔS, and kinetic parameters of the Ni-P-C-O alloy chemical plating process were obtained. The reaction mechanism between nickel ion and butynediols in the electroless plating process was analyzed.
8.Green synthesis techniques,including asymmetric catalysis,membrane catalysis,enzyme catalysis,electrochemistry synthesis,solvent-free synthesis,synthesis in supercritical fluid,synthesis in ionic liquid,and several kinds of green promote reaction method,are reviewed.The applications of them in fine chemical industry were also introduced.
9.The mechanism and kinetics of the carbonation process of the ammoniacal brine were analysed in this paper. Chemical reactions involved in the carbonation process were considered as three consecutive and reversible steps: the first reaction between CO 2 and NH 3 is a fast one, which takes place within the liquid film, while the hydrolysis of NH 2COO - and precipitation of NaHCO 3 are slow reactions and taken place in the liquid bulk.
