MARC details
| 000 -LEADER |
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| fixed length control field |
02405nam a2200253Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250625162455.0 |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-20761 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
Application of amino acids for gold leaching: Effective parameters and the role of amino acid structure |
| 490 0# - SERIES STATEMENT |
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| Volume/sequential designation |
Journal of Cleaner Production, 391, p.136123, 2023 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
The main objective of this research work was to employ different amino acids, and investigate on their capability in gold extraction by leaching process. For this purpose, 8 amino acids (Glycine, Alanine, Valine, Phenyl Alanine, Histidine, Asparagine, Aspartic Acid, and Cysteine)were used to leach native gold and various effective parameters were accordingly verified. The studied parameters were temperature, hydrogen peroxide concentration (as oxidant agent), pH and amino acid concentration. The obtained results indicated that the existence of hydrogen peroxide, moderate temperature, and alkaline pH were the key factors for gold leaching, using amino acids except for Cysteine which could dissolve gold at ambient temperature and in absence of hydrogen peroxide. It was also concluded that the order of amino acids in gold leaching was: Asparagine > Glycine > Histidine > Cysteine > Phenyl Alanine > Valine > Aspartic acid > Alanine. Comparing the leaching rates with related amino acids molecular structures, showed that aliphatic and aromatic amino acids were the lowest effective agents and the existence of N, O, and S donor atoms on the amino acid carbon side chain could be considered as the sign of higher ability for complexing with gold. However, it was also found that the amino acids with just COO?? group(s)on the side chain could not dissolve gold effectively. It was also found that all of amino acids are degraded and polymerized during gold dissolution (except Glycine)which leads to spoiling of the agent and has a negative effect on dissolution. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
GOLD LEACHING |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
AMINO ACIDS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
DEGRADATION |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Sarvar, M. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Tonkaboni, Z. S. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Noaparast, M. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Badiei, A. R. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Amiri, A. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1ohhvrxhWr8sXyUvdCHKJirBGgmiA07ET/view?usp=drivesdk">https://drive.google.com/file/d/1ohhvrxhWr8sXyUvdCHKJirBGgmiA07ET/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
