Recovery of Diamond and Cobalt Powder from Polycrystalline Drawing Die Blanks via Ultrasound-Assisted Leaching Process—Part 1: Process Design and Efficiencies
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...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-06-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/6/731 |
| _version_ | 1797566461561012224 |
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| author | Ferdinand Kießling Srecko Stopic Sebahattin Gürmen Bernd Friedrich |
| author_facet | Ferdinand Kießling Srecko Stopic Sebahattin Gürmen Bernd Friedrich |
| author_sort | Ferdinand Kießling |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T19:27:09Z |
| format | Article |
| id | doaj.art-d27a606131ad4f0cb3eefcd86648e116 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T19:27:09Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-d27a606131ad4f0cb3eefcd86648e1162023-11-20T02:27:54ZengMDPI AGMetals2075-47012020-06-0110673110.3390/met10060731Recovery of Diamond and Cobalt Powder from Polycrystalline Drawing Die Blanks via Ultrasound-Assisted Leaching Process—Part 1: Process Design and EfficienciesFerdinand Kießling0Srecko Stopic1Sebahattin Gürmen2Bernd Friedrich3Redies Deutschland GmbH & Co.KG, Metzgerstr. 1, 52070 Aachen, GermanyIME Process Metallurgy and Metal Recycling, RWTH Aachen University, Intzestrasse 3, 52056 Aachen, GermanyMetallurgical and Materials Engineering Department, Istanbul Technical University, Ayazaga Campus, Istanbul 34469, TurkeyIME Process Metallurgy and Metal Recycling, RWTH Aachen University, Intzestrasse 3, 52056 Aachen, GermanyThe 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.https://www.mdpi.com/2075-4701/10/6/731polycrystalline diamondleachingcobaltultrasound |
| spellingShingle | Ferdinand Kießling Srecko Stopic Sebahattin Gürmen Bernd Friedrich Recovery of Diamond and Cobalt Powder from Polycrystalline Drawing Die Blanks via Ultrasound-Assisted Leaching Process—Part 1: Process Design and Efficiencies Metals polycrystalline diamond leaching cobalt ultrasound |
| title | Recovery of Diamond and Cobalt Powder from Polycrystalline Drawing Die Blanks via Ultrasound-Assisted Leaching Process—Part 1: Process Design and Efficiencies |
| title_full | Recovery of Diamond and Cobalt Powder from Polycrystalline Drawing Die Blanks via Ultrasound-Assisted Leaching Process—Part 1: Process Design and Efficiencies |
| title_fullStr | Recovery of Diamond and Cobalt Powder from Polycrystalline Drawing Die Blanks via Ultrasound-Assisted Leaching Process—Part 1: Process Design and Efficiencies |
| title_full_unstemmed | Recovery of Diamond and Cobalt Powder from Polycrystalline Drawing Die Blanks via Ultrasound-Assisted Leaching Process—Part 1: Process Design and Efficiencies |
| title_short | Recovery of Diamond and Cobalt Powder from Polycrystalline Drawing Die Blanks via Ultrasound-Assisted Leaching Process—Part 1: Process Design and Efficiencies |
| title_sort | recovery of diamond and cobalt powder from polycrystalline drawing die blanks via ultrasound assisted leaching process part 1 process design and efficiencies |
| topic | polycrystalline diamond leaching cobalt ultrasound |
| url | https://www.mdpi.com/2075-4701/10/6/731 |
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