1·The process flow sheet, technological Characteristics and usage of UTI urea process are briefly introduced. Its superiority is described in this paper.
简单介绍了UTI工艺的流程、技术特点及应用情况，并指出它是一种较为先进的尿素生产工艺。
2·The technology for complex recovery and utilization of valuable metals from highcobalt residus is introduced and the optimism technological parameters and flow sheet has been determined.
介绍了高钴渣中有价金属的综合回收利用工艺，确立了各工序的最佳工艺条件。
3·Structure and characteristics of rotating film-evaporator are introduced, its new type and technological process have been developed to remedy the defects of the original type and flow sheet.
介绍旋转薄膜蒸发器的结构与性能。讨论了原有设备及流程的不足，以及为解决这些不足而开发出的新型设备与流程。