Next Article in Journal
Geochemistry, Mineralogy and Microbiology of Molybdenum in Mining-Affected Environments
Previous Article in Journal
Pyrite Decay of Large Fossils: The Case Study of the Hall of Palms in Padova, Italy
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Minerals 2018, 8(2), 41;

The Effect of Seaweed Glue in the Separation of Copper–Molybdenum Sulphide Ore by Flotation

School of Minerals Processing and Bio-Engineering, Central South University, Changsha 410083, China
School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, China
Zhaojin Mining Industry Company Limited, Yantai 264000, China
Authors to whom correspondence should be addressed.
Received: 12 December 2017 / Revised: 20 January 2018 / Accepted: 22 January 2018 / Published: 25 January 2018
Full-Text   |   PDF [4334 KB, uploaded 22 February 2018]   |  


Flotation separation of chalcopyrite from molybdenite was studied using seaweed glue (SEG) as a depressant. Flotation process and mechanism were examined by response surface methodology, flotation tests, adsorption tests, zeta potential measurements and fourier transform infrared (FT-IR) spectra. Response surface methodology with a Box–Behnken design suggested the optimal reagent schedule: pH 4, depressant seaweed glue 197 mg/L, collector amyl xanthate 16 mg/L and frother (methyl isobutyl carbinol) 20 mg/L, and selective separation of chalcopyrite and molybdenite was achieved by flotation. Comparison of SEG and traditional depressants indicated that the SEG could achieve a similar separation efficiency, and exhibited the advantages of environmental compatibility and economic adaptability. Co-adsorption of seaweed glue and amyl xanthate occurred on the surface of molybdenite, and is explained to happen through distinct mechanisms due to the heterogeneous nature of the surface. It is likely that seaweed glue depresses molybdenite by covering the dixanthogen resulting from adsorption of xanthate ions. It is shown that seaweed glue is as effective a depressant of Cu/Mo separation as cyanide. View Full-Text
Keywords: chalcopyrite; molybdenite; flotation depressant; seaweed glue chalcopyrite; molybdenite; flotation depressant; seaweed glue

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Chen, Z.; Gu, G.; Li, S.; Wang, C.; Zhu, R. The Effect of Seaweed Glue in the Separation of Copper–Molybdenum Sulphide Ore by Flotation. Minerals 2018, 8, 41.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Minerals EISSN 2075-163X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top