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The acid wastewater of a factory contains CD

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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The acid wastewater of a factory contains CD
(PDF) Leaching of niobium and tantalum from a low-grade ...
(PDF) Leaching of niobium and tantalum from a low-grade ...

The niobium and, tantalum, was recovered as high purity (Nb,Ta)2O5 (99.3%) through evaporation, crystallization and phase transformation processes. Effect of KOH decomposition time on the water...

Group VB - DuPont
Group VB - DuPont

Water/Wastewater: Vanadium, niobium, and, tantalum, are present as cations in acid, so a strong acid cation exchanger like AmberSep™ G26 H Resin is the separation media of choice. In dilute hydrochloric acid, V4+ has a high affinity for a strong acid cation resin. The affinity diminishes as the concentration increases from 4M to 8M HCl, but then the ...

Separation of niobium and tantalum from Mozambican ...
Separation of niobium and tantalum from Mozambican ...

1/11/2012, · Tantalite ore was digested using molten ammonium bifluoride. ,Niobium, and tantalum were extracted using octanol as extractant. Addition of H 2 SO 4 improves the separation of ,niobium, and tantalum. Extraction with 2-octanol is almost similar to extraction with 1-octanol. Two and three stages were sufficient for the extraction of Ta and Nb respectively.

Green extraction of niobium and tantalum for Ethiopian ...
Green extraction of niobium and tantalum for Ethiopian ...

corrosion. As well, a large amount of ,wastewater, containing fluoride is generated which needs to be treated. 2 More importantly, this method is only appropriate for high-grade ,niobium,-tantalum ores, and it is difficult to decompose low-grade ores by hydrofluoric ,acid,.1,2 New process for the leaching of low-grade ores with KOH to eliminate

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