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公开(公告)号：US08337801B2
公开(公告)日：2012-12-25
申请号：US13003307
申请日：2009-07-10
摘要： A process for producing calcine products includes dead roasting a metal sulfide concentrate having a low sulfur content. The concentrate is roasted in a circulating fluidized bed at a temperature of about 950 to 1050° C. A waste gas of the fluidized bed is passed through at least one of a recuperator and a Venturi drier so as to respectively provide at least one of a preheating of at least a portion of air fluidizing the fluidized bed and a drying of at least a portion of the concentrate to be roasted. The calcine product obtained in the fluidized bed with a sulfur content of less than 1 wt-% is provided for further processing.
摘要翻译： 一种生产煅烧产物的方法包括对具有低硫含量的金属硫化物浓缩物进行死烧。 浓缩物在循环流化床中在约950至1050℃的温度下焙烧。流化床的废气通过换热器和文丘里干燥器中的至少一个，以分别提供至少一个 预热流化床的至少一部分空气和至少一部分待焙烧的浓缩物的干燥。 在硫含量小于1重量％的流化床中获得的煅烧产物被提供用于进一步处理。
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公开(公告)号：US20110195016A1
公开(公告)日：2011-08-11
申请号：US13003307
申请日：2009-07-10
摘要： A process for producing calcine products includes dead roasting a metal sulfide concentrate having a low sulfur content. The concentrate is roasted in a circulating fluidized bed at a temperature of about 950 to 1050° C. A waste gas of the fluidized bed is passed through at least one of a recuperator and a Venturi drier so as to respectively provide at least one of a preheating of at least a portion of air fluidizing the fluidized bed and a drying of at least a portion of the concentrate to be roasted. The calcine product obtained in the fluidized bed with a sulfur content of less than 1 wt-% is provided for further processing.
摘要翻译： 一种生产煅烧产物的方法包括对具有低硫含量的金属硫化物浓缩物进行死烧。 浓缩物在循环流化床中在约950至1050℃的温度下焙烧。流化床的废气通过换热器和文丘里干燥器中的至少一个，以分别提供至少一个 预热流化床的至少一部分空气和至少一部分待焙烧的浓缩物的干燥。 在硫含量小于1重量％的流化床中获得的煅烧产物被提供用于进一步处理。
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