PREPARATION OF NANO SILVER POWDER FROM ACID LEACHING TAIL IN GOLD ROOM

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KARGAR RAZI M.; AZADI S.; SARRAF MAMOORY R.; MOHAMMADI FRASANI M.

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Journal Paper

Paper Information

Journal: International Journal of Nano Dimension Year:2010 | Volume:1 | Issue:2 Page(s): 133-142

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Title

PREPARATION OF NANO SILVER POWDER FROM ACID LEACHING TAIL IN GOLD ROOM

Author(s)

KARGAR RAZI M. | AZADI S. | SARRAF MAMOORY R. | MOHAMMADI FRASANI M. | Issue Writer Certificate

Keywords

NANO SILVER POWDER

ACID LEACHING TAIL SOLUTION

HYDRAZINE

METHANOL

Abstract

According to the unique properties and many applications of NANO SILVER POWDER, it was prepared from ACID LEACHING TAIL SOLUTION. The low value residual gold and silver ions were occurred with fellow heavy metals as pollutants (Fe2+, Cu 2+and Zn2+) in ACID LEACHING TAIL SOLUTION in Mouteh gold mine in Iran.Preparation of nano silver particles was achieved in two steps: first, by addition of ammonia as a separation step and second by using different reagents as precipitation and extraction steps. Different controlled parameters were including pH, residence time and temperature, mixing time, and reducing reagents to metals molar ratio. Acid leaching process was carried out with sulphuric and nitric acid via suitable reductants. In order to remove copper, zinc, and silver ions from solution, all of the conditions were controlled. The optimum conditions for preparation of NANO SILVER POWDER with less than 90 nm were pH 10.5, HYDRAZINE/methanol to silver molar ratio of 3 to 4, and reduction time of 5 min in 45oC. The results were evaluated via SEM, A.A and UV- Vis spectroscopy analytical methods.

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References

SYNTHESIS OF COPPER METALLIC CLUSTERS USING REVERSE MICELLES AS MICROREACTORS

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APA: Copy

KARGAR RAZI, M., AZADI, S., SARRAF MAMOORY, R., & MOHAMMADI FRASANI, M.. (2010). PREPARATION OF NANO SILVER POWDER FROM ACID LEACHING TAIL IN GOLD ROOM. INTERNATIONAL JOURNAL OF NANO DIMENSION (IJND), 1(2), 133-142. SID. https://sid.ir/paper/322041/en

Vancouver: Copy

KARGAR RAZI M., AZADI S., SARRAF MAMOORY R., MOHAMMADI FRASANI M.. PREPARATION OF NANO SILVER POWDER FROM ACID LEACHING TAIL IN GOLD ROOM. INTERNATIONAL JOURNAL OF NANO DIMENSION (IJND)[Internet]. 2010;1(2):133-142. Available from: https://sid.ir/paper/322041/en

IEEE: Copy

M. KARGAR RAZI, S. AZADI, R. SARRAF MAMOORY, and M. MOHAMMADI FRASANI, “PREPARATION OF NANO SILVER POWDER FROM ACID LEACHING TAIL IN GOLD ROOM,” INTERNATIONAL JOURNAL OF NANO DIMENSION (IJND), vol. 1, no. 2, pp. 133–142, 2010, [Online]. Available: https://sid.ir/paper/322041/en

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