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1 前言 CONTOP~R工艺最初是由德国科隆的KHDHumboldt Wedag AG公司针对有色金属工业而开发的。两台迄今为止最大的CONTOP~R熔炼旋风炉建于美国德克萨斯的ASARCO公司,每台能力为32t/h铜精矿混和料。 1998年,奥钢联工程技术公司(VAI)获得了 相似文献
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The thermodynamics and kinetics of the Molten-Iron-Pure-Gas (MIP) process used for coal gasification have been analyzed. In
the MIP process, oxygen, fine-grained coal, and fluxes are injected into a liquid iron bath to produce a high temperature
gas consisting of CO and H2 plus a liquid basic slag. The sulfur is transferred from the coal to this slag. Computer calculations bearing in mind test
conditions were used to determine equilibrium conditions as well as mass and energy balances; these indicated that the MIP
process is technically feasible. The kinetics of the gasification process have been investigated by analyzing and assessing
the basic reactions for a bottom-blowing MIP reactor. A comparison of all relevant reactions reveals that the dissolution
of carbon in iron is the rate-determining step of the process. The bath turbulence induced by the injected gas and by the
product gas results in intense mixing and dispersion of the reactants and their intermediate products. These phenomena create
extremely large mass-transfer surfaces and extend the retention time of the reactants in the liquid iron bath. This results
in high conversion rates relative to the volume of the MIP reactor. 相似文献
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N-channel silicon m.o.s. transistors for h.f. power applications have been fabricated which are optimised for linear amplification. These devices exhibit 2 W output power and 11 dB power gain at 630 MHz in class-A operation. The intercept point for third-order intermodulation distortion is 48dBm, which is considerably more than the same data obtainable with bipolar transistors. 相似文献
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