通过醋淬、水淬两种方法对天然自然铜煅制,研究不同温度、煅制次数对自然铜成分的影响,探讨淬取工艺与自然铜成分变化之间的规律.采用X射线衍射(XRD)、X射线荧光技术(XRF)对其进行成分检测.结果表明:自然铜在650℃,1h,3次煅醋淬和750°C,lh,l次煅醋淬均可使其淬透,内外失去金属光泽,S成分基本消失,生成Fe2O3,煅制品呈现红褐色.950℃煅制时有少量Fe3O4生成,表明自然铜在过高温度缎制将会对有效成分的溶出产生不利影响.两种淬火方法获得的煅自然铜里都含有人体所需的微量元素如Na,K,Cl,Ca,Co,P,Y,Mn,Cr等,不同工艺下其含量基本保持不变.综合考虑,750℃,lh,l次煅醋淬工艺为佳.
Natural pyritum was calcined by vinegar quenching and water quenching method, respectively. ritum were tested using x - ray diffraction (XRD) and x - ray fluorescence (XRF) techniques. The results show that the pyritum at 650 ℃, lh, three times quenching and 750 ℃, 1 h, one time can make it through quench- ing, sulfur almost disappeared, generating Fe20s with red -brown. Very small amounts of Fe304 was produced at excessive temperature ( 950℃ ), which suggested that high - temperature calcination would have an adverse effect on the release of active ingredients. XRF revealed that calcined pyritum contained trace elements such as Na, K, C1, Ca, Co, P, Y, Mn, Cr, which are essential for human body. It is concluded that750℃, lh, one time vinegar quenching process is preferred.