Direct Selective Extraction of Actinides (III) from PUREX Raffinate using a Mixture of CyMe4BTBP and TODGA as 1-cycle SANEX Solvent Part III: Demonstration of a Laboratory-Scale Counter-Current Centrifugal Contactor Process

The crown ether strontium extraction(CESE) process for partitioning strontium from HLLW was studied. A hot test was carried out in a counter current mode with genuine HLLW by using a miniature centrifugal contactor set. 0.1 mol/L DCH18C6 in 1-octanol was used as extractant. The feed solution was the HLLW raffinate of TRPO process after removing TRU elements. Acidity of the feed was 1.45 mol/L HNO

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Demonstration of a TODGA‐Based Continuous Counter‐Current Extraction Process for the Partitioning of Actinides from a Simulated PUREX Raffinate, Part II: Centrifugal Contactor Runs

Solvent Extraction and Ion Exchange ◽

10.1080/07366290701784175 ◽

2008 ◽

Vol 26 (1) ◽

pp. 62-76 ◽

Cited By ~ 111

Author(s):

Giuseppe Modolo ◽

Hanna Asp ◽

Hendrik Vijgen ◽

Rikard Malmbeck ◽

Daniel Magnusson ◽

...

Keyword(s):

Extraction Process ◽

Centrifugal Contactor ◽

Counter Current

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Additive Manufacturing Fabrication of PEEK Counter-Current Centrifugal Contactor Components

10.2172/1596336 ◽

2019 ◽

Author(s):

Peter Kozak ◽

Brian Saboriendo ◽

Peter Tkac

Keyword(s):

Additive Manufacturing ◽

Centrifugal Contactor ◽

Counter Current

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Resource utilization of titanium-containing slurry by selective extraction and leaching

Metallurgical Research & Technology ◽

10.1051/metal/2018011 ◽

2018 ◽

Vol 115 (5) ◽

pp. 504 ◽

Cited By ~ 1

Author(s):

Xiaoyan Xiang ◽

Wentang Xia ◽

Jianguo Yin

Keyword(s):

High Temperature ◽

Resource Utilization ◽

Selective Extraction ◽

Titanium Content ◽

Evaporation Residue ◽

Leaching Test ◽

Whole Process ◽

Leaching Residue ◽

Titanium Oxychloride ◽

Counter Current

Resource utilization of titanium-containing slurry was realized by selective extraction and leaching. The results from the experiment confirmed that thistechnology was effective for recycling titanium and niobium from the slurry. During selective extraction, the extract solution with titanium content of 159.40 g/L was obtained after 3 stage-counter current extractions, and the titanium content of extracted residue could be reduced to 1.85 wt% which was much lower than the titanium content of titanium-containing slurry. The results of evaporation experiments indicated that CH2Cl2 in extracted residue could be separated and recovered effectively by evaporation and high temperature is beneficial for the whole process. Meanwhile, the titanium oxide and titanium oxychloride in extracted residue could also be transformed into TiCl4 and recovered by evaporation as the evaporation of dichloromethane in extracted residue. The beneficiation of niobium could be achieved when the evaporated residue was leached with diluted hydrochloric acid, the results of leaching test showed that more than 97% of the aluminum in evaporation residue was dissolved, while, only 1.3% of the niobium was leached. Finally, niobium concentrate with Nb2O5 content of 76.39% was obtained by washing the leaching residue with dilute ammonia water.

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