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TECHNOLOGY FOR THE RECOVERY OF CADMIUM FROM A PROCESSED CADMIUM-CALCIUM-PHOSPHATE CATALYST

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Background. In the production of acetaldehyde, Navoiazot JSC uses the “Cadmium-Calcium Phosphate Catalyst (CCP-N)”. Its replacement takes place every 6 months. Technology is needed to recycle spent CCP-N and return cadmium to a new cycle of its synthesis. Purpose development of technology for the selective extraction of cadmium from spent CCP-N for the reuse of cadmium (recycling). Methodology. The shares of CdO, CaO and P2O5 in the spent CCP-N were determined on an ICP-MS spectrometer. CCP samples were dissolved in acids, with the separation of graphite on the filter from CCP decomposition solutions. Sorption of cations was carried out on Purolite C100H resin. Originality. A technology has been developed for the selective extraction of cadmium from spent CCP-N catalyst in the form of a nitrate salt, suitable for recycling in the synthesis of CCP-N. Findings. Scheme for the processing of waste CCP-N for cadmium and process schedules for pilot testing technology was proposed. The calculation of consumables, the content of Cd, P, Ca in the technological solutions of processing was made; data on the dependence of cadmium recovery depending on the pH of the medium were obtained. Highlights: - technology was developed for processing of spent CCP catalyst; - it is transferred to the customer for pilot testing.

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# сорбция# катионит# sorption# кадмий# cadmium# катализатор кадмий-кальций-фосфа# селективное извлечение# кадмий-кальций-фосфат катализато# алоҳида ажратиб олиш.# cadmium-calcium phosphate cataly# cation exchanger# selective extraction.

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Article Identifiers

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https://eroi.uz/11.0030/A1219-0024

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References

A.s. SSSR Nr 295578. V.YE. Gaag, N.V. Petrusheva. Sposob regeneracii kadmiykal`ciyfosfatnogo katalizatora. Zayavl. 13.01.1970, Opubl. 12.11.1971. Byull.Nr8

Gorin YU.A. Goshimgidrat, TZ (1959). - S. 8 (194) - 14 (200); T2 (1959). - S. 85 (177) - 88 (180).

Murthy Z.V.P. (2014) Cadmium, Recovery of. In: Drioli E., Giorno L. (eds) Encyclopedia of Membranes. Springer, Berlin, Heidelberg

Ligiane R.Gouvea, Carlos A.Morais. Recovery of zinc and cadmium from industrial waste by leaching/cementation // Minerals Engineering, Volume 20, Issue 9, August 2007, Pages 956-958. https://doi.org/10.1016/j.mineng.2007.04.016

C.A. Nogueira, F.Delmas, New flowsheet for the recovery of cadmium, cobalt and nickel from spent Ni-Cd batteries by solvent extraction // Hydrometallurgy Volume 52, Issue 3, June 1999, Pages 267-287, https://doi.org/10.1016/S0304-386X(99)00026-2

Nagpur Navneet Singh. Recovery of metals from spent nickel-cadmium (Ni-Cd) battery by leaching-electrowining process. Internal Conference on Nonferrous Metals-2014, Nagpur City (INDIA), July 2014.

Ewa Rudnik, Marek Nikiel. Hydrometallurgical recovery of cadmium and nickel from spent Ni-Cd batteries // Hydrometallurgy, Volume 89, Issues 1-2, September 2007, Pages 61-71, https://doi.org/10.1016/j.hydromet.2007.05.006

Karuppanna Periasamy, and Chinnaiya Namasivayam. Process Development for Removal and Recovery of Cadmium from Wastewater by a Low-Cost Adsorbent: Adsorption Rates and Equilibrium Studies // Ind. Eng. Chem. Res. 33, 2, 317-320, DOI: 10.1021/ie00026a022

Guro V.P., Dadahodzhaev A.T., Ibragimova M.A., Fuzaylova F.N. Poluchenie kadmiy-kal`ciy-fosfatnogo katalizatora sinteza acetal`degida // Uzb. himich. zh. - 2018, Nr1. - S.15-21.

Guro V.P., Ibragimova M.A., Safarov E.T., Fuzaylova F.N., Dadahodzhaev A.T. Izvlechenie kadmiya iz otrabotannogo kadmiy-kal`ciy-fosfatnogo katalizatora // Uzb. himich. zh. - 2018, Nr4. - S.35-41.

Pozin M.E. Tehnologiya mineral`nyih soley. L.: Izd-vo Himiya, 1970. - S. 982, 1318, 1344, 1366.

Purolite® C100, https://www.purolite.com/product/c100