Technological Research and Industrial Application of Centralized Saponification with Calcium Hydroxide Powder of Rare Earth Extraction Organic Phase AITranslate
Abstract AITranslate
The direct saponification of rare earth extraction organic phase with calcium hydroxide powder was studied.The experimental results show that the saponification values of P507 organic phase and naphthenic acid organic phase are 0.55 mol/L and 0.72 mol/L,respectively, with clear appearance and good fluidity through the process of direct saponification by using calcium hydroxide powder.When the calcium saponified organic phase is subject to extraction reaction with rare earth chloride feed liquid, the separation time of P507 organic phase is 40 s with the rare earth load of 0.19 mol/L,and the separation time of naphthenic acid organic phase is 180 s with the rare earth load of 0.19 mol/L.Based on the test data, a centra-lized calcium hydroxide powder direct saponification technology was developed.After years of industrial operation, the results show that calcium hydroxide powder directly saponifies the P507 organic phase and the naphthenic acid organic phase with good fluidity, fast phase separation, little impact on product quality, and no long-term adverse effects on the organic phase.And the saponification cost is only 16.5% of that of liquid alkali.Since the saponifier is a powder, there is no need for emulsion and the saponification reaction with the organic phase directly occurs.Compared with the saponification of liquid alkali, the wastewater greatly reduces and the environmental benefits are quite good.
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DOI：
Chinese Library Classification Number:TF804.2[冶金工程—有色金属冶金]
Citation Information:
The direct saponification of rare earth extraction organic phase with calcium hydroxide powder was studied.The experimental results show that the saponification values of P507 organic phase and naphthenic acid organic phase are 0.55 mol/L and 0.72 mol/L,respectively, with clear appearance and good fluidity through the process of direct saponification by using calcium hydroxide powder.When the calcium saponified organic phase is subject to extraction reaction with rare earth chloride feed liquid, the separation time of P507 organic phase is 40 s with the rare earth load of 0.19 mol/L,and the separation time of naphthenic acid organic phase is 180 s with the rare earth load of 0.19 mol/L.Based on the test data, a centra-lized calcium hydroxide powder direct saponification technology was developed.After years of industrial operation, the results show that calcium hydroxide powder directly saponifies the P507 organic phase and the naphthenic acid organic phase with good fluidity, fast phase separation, little impact on product quality, and no long-term adverse effects on the organic phase.And the saponification cost is only 16.5% of that of liquid alkali.Since the saponifier is a powder, there is no need for emulsion and the saponification reaction with the organic phase directly occurs.Compared with the saponification of liquid alkali, the wastewater greatly reduces and the environmental benefits are quite good.
quote
| GB/T 7714-2015 | [1] ZHANG Jiang-hua, LUO Qi. Technological Research and Industrial Application of Centralized Saponification with Calcium Hydroxide Powder of Rare Earth Extraction Organic Phase[J]. Rare Metals and Cemented Carbides, 2022(6): 18-21. |
| MLA | [1] ZHANG Jiang-hua, and LUO Qi. "Technological Research and Industrial Application of Centralized Saponification with Calcium Hydroxide Powder of Rare Earth Extraction Organic Phase." Rare Metals and Cemented Carbides, no. 6, 2022, pp. 18-21. |
| APA | [1] ZHANG Jiang-hua, & LUO Qi. (2022). Technological Research and Industrial Application of Centralized Saponification with Calcium Hydroxide Powder of Rare Earth Extraction Organic Phase. Rare Metals and Cemented Carbides(6), 18-21. |
| IEEE | [1] ZHANG Jiang-hua and LUO Qi, "Technological Research and Industrial Application of Centralized Saponification with Calcium Hydroxide Powder of Rare Earth Extraction Organic Phase," Rare Metals and Cemented Carbides, no. 6, pp. 18-21, 2022. keywords: {calcium hydroxide powder;centralized quantitative saponification;extraction organic phase;P507;naphthenic acid;rare earth separation} |