简介：Siliconcarbide(SiC)-alumina(Al_2O_3)-mullite(Al_6Si_2O_(13))compositepowderwassuccessfullysynthesizedat1550℃for5hviacarbothermalreductionreaction,andtheeffectsofvariousmassratiosofactivecarbontoflyash(0.38,0.44and0.58)onthephasecompositionandmicrostructureofproductswereinvestigated,andtheformationprocessofthepowderwasalsoanalyzedindetail.Theproductsmainlyconsistofβ-SiC,α-Al_2O_3,Al_6Si_2O_(13)andFeSi.IncreasingcarboncontentfavorsthedecompositionofAl_6Si_2O_(13)andformationofSiC.Theaverageparticlesizeofβ-SiCandα-Al_2O_3isabout1μmandthatofAl_6Si_2O_(13)is5-10μm.TheformationprocessofSiC-Al_2O_3-Al_6Si_2O_(13)powderincludesthedecompositionofmulliteinflyashandformationofSiC.

简介：4试烧的实践——不自产甲醇的酵酸厂，用CO2制合成醋酸原料气原型炉的演实（1）试烧用的原料焦，即＂921工程＂投产后当地对口供给的铸造焦。其特低的挥发份含量，符合除CO外，H2＋N2＋缸＋C：114＋C02（V%）含量〈2％的要求，以及灰熔点高有利C02还原制CO和避免熔渣结块而破坏CO发生炉长周期稳定运转。

简介：