Kajian Eksperimen ke atas Ekstrak yang Digunakan untuk Penyingkiran Kuprum daripada Larutan Anod Elektrolisis Nikel (II)
2、 Effect of Extractant on Purification and Copper Removal of Nickel Electrolytic Anode Solution in Chloride Salt System
Using chloroform or sulfonated kerosene as the diluent, prepare the extractant into a solution with a volume fraction of 9-11g/L as the organic phase. Prepare a simulated nickel chloride electrolyte using copper chloride and nickel chloride, with a nickel ion concentration of 60-70g/L and a copper ion concentration of 0.8g/L. Adjust the solution pH to 4-4.5. The extraction conditions: suhu pengekstrakan 25 ℃, 1:1 to 1:2 compared to (O/A). Pour the organic and aqueous phases proportionally into a 100ml conical flask and stir for 30 minutes in a constant temperature magnetic stirrer. Afterwards, the separation funnel was placed in a static state for layering to obtain the residual solution (the solution after removing copper from the nickel electrolysis anode) and the loaded organic phase. The loaded organic phase was subjected to stripping with 2mol/L sulfuric acid at a temperature of 25 ℃ and a stripping ratio of (O/A) 5:1. The stripping solution was obtained through primary stripping. Measure the concentration of copper and nickel ions in the solution after copper removal and the solution after stripping using ICP-AES method and calculate the copper nickel stripping rate and the copper nickel mass ratio in the solution after stripping. The copper nickel stripping rate is 100%.
3、 Simulation of the Effect of Extractants on the Purification and Removal of Copper from Nickel Electrolytic Anode Solution in a Chloride Sulfate Mixed System
Using chloroform or sulfonated kerosene as the diluent, prepare the extractant into a solution with a volume fraction of 9-11g/L as the organic phase. Prepare a simulated nickel electrolyte for a chloride sulfate mixed system, with a nickel ion concentration of 70-80g/L, copper ion concentration of 0.8g/L, chloride ion concentration of 75g/L, and sulfate ion concentration of 100g/L. Adjust the aqueous pH to 4.5. The extraction conditions: suhu pengekstrakan 25 ℃, 1:1 to 1:2 compared to (O/A). Pour the organic and aqueous phases proportionally into a 100ml conical flask and stir magnetically for 30 minutes in a constant temperature magnetic stirrer. Afterwards, the separation funnel was placed in a static state for layering to obtain the residual solution (the solution after removing copper from the nickel electrolysis anode) and the loaded organic phase. The loaded organic phase was subjected to stripping with 2mol/L sulfuric acid at a temperature of 25 ℃ and a stripping ratio of (O/A) 5:1. The stripping solution was obtained through primary stripping. Measure the concentration of copper and nickel ions in the solution after copper removal and the solution after stripping using ICP-AES method and calculate the copper nickel stripping rate and the copper nickel mass ratio in the solution after stripping. The copper nickel stripping rate is 100%.
Produk utama kami pengekstrak logam dan penggunaan seperti di bawah:
- P204 (D2EHPA atau HDEHP) Ini digunakan untuk langkah pertama untuk membuang kekotoran untuk bijih nikel laterit.
- DY319 pengekstrak bersama pengekstrakan nikel kobalt kecekapan tinggi, boleh mengeluarkan nikel dan kobalt bersama-sama daripada bijih laterit nikel atau elektrolit bateri Litium. Ini adalah langkah kedua untuk bijih nikel laterit.
- DZ272 Pengekstrak pengasingan kobalt nikel, ia boleh mengeluarkan kobalt daripada larutan nikel kobalt, kemudian tinggalkan nikel tulen. Ini adalah langkah ketiga untuk bijih nikel laterit.
- DY377 pengekstrak pemisahan nikel dan berlian yang cekap.
- DY366 pengekstrak kobalt nikel termaju baharu.
- DZ988N/DZ973N/DZ902 reagen pengekstrakan pelarut kuprum.
