The treatment of industrial polycrystalline diamond (PCD) blanks in aqua regia at atmospheric pressure between 333 K and 353 K was performed via the ultrasound-assisted leaching process to investigate whether the influence of ultrasound is beneficial. Cobalt content in the solution and in the blanks was monitored as well as the effects of leaching temperature, solid-to-liquid ratio, and PCD blank size. The use of intermittent and permanent ultrasound helped reduce the leaching time and thus energy consumption by up to 50%. In all trials with ultrasound, higher temperature only has a slight effect. Solid-to-liquid ratio does not have a positive or negative impact. A new process design was tested using an innovative experimental setup for ultrasound-assisted leaching aiming at maximum cobalt and diamond recovery from PCD and final reuse of fine PCD for cutting and polishing other hard materials in different important industrial applications.

中文翻译：

---

通过超声辅助浸出工艺从多晶拉丝模坯中回收金刚石和钴粉—第1部分：工艺设计和效率

通过超声辅助浸出工艺对王水中的工业多晶金刚石（PCD）坯料在333 K和353 K之间的大气压下进行了处理，以研究超声的影响是否有益。监测溶液和空白中的钴含量，以及浸出温度，固液比和PCD空白尺寸的影响。间歇性和永久性超声的使用有助于减少浸出时间，从而使能耗降低多达50％。在所有超声检查中，较高的温度只会产生轻微影响。固液比没有正面或负面影响。