Removal of Chromium (VI) Using Synergistic Liquid–Liquid Extraction Through LIX63/Cyanex 302 System

2021 ◽  
pp. 407-418
Author(s):  
Raja Norimie Raja Sulaiman ◽  
Norasikin Othman
Keyword(s):  
Liquid Extraction ◽  
Chromium Vi ◽  
Liquid Liquid Extraction ◽  
Cyanex 302

Liquid-Liquid Extraction/Recovery of Chromium(VI) From Some Industrial Waste Solutions Using Alamine 336 in Kerosene

2012 ◽  
Vol 33 (8) ◽  
pp. 1179-1187 ◽  
Author(s):  
Omnya M. El-Hussaini ◽  
Tayseer A. Lasheen ◽  
Evon M. Helmy ◽  
Mohamed A. Hady ◽  
Al-Sayed A. Manaa
Keyword(s):  
Industrial Waste ◽  
Liquid Extraction ◽  
Extraction Recovery ◽  
Chromium Vi ◽  
Liquid Liquid Extraction ◽  
Alamine 336

Liquid-Liquid Extraction of Palladium from Simulated Liquid Waste using Phosphinic Acid as a Carrier

2014 ◽  
Vol 68 (5) ◽  
Author(s):  
Norasikin Othman ◽  
Norul Fatiha Mohamed Noah ◽  
Raja Norimie Raja Sulaiman ◽  
Nurul Ashida Abdullah ◽  
Siti Khadijah Bachok
Keyword(s):  
Heavy Metals ◽  
Industrial Wastewater ◽  
Economic Value ◽  
Phosphinic Acid ◽  
Liquid Waste ◽  
Precious Metals ◽  
Liquid Extraction ◽  
Waste Solution ◽  
Liquid Liquid Extraction ◽  
Cyanex 302

Nowadays, extraction and recovery of metals from industrial wastewater has become a major concern owing to the toxicity of heavy metals and economic value of precious metals such as gold, palladium and silver. In this research, the extraction of palladium from simulated aqueous solution using liquid-liquid extraction was studied. The organic phase containing bis(2,4,4-trimethylpentyl) monothiophosphinic acid (Cyanex 302) as a carrier was used. Several parameters such as concentration of carrier, type of diluents and stripping agent type and its concentration were investigated. The results showed that at the favourable condition of 0.1 mM Cyanex 302 in kerosene as a diluent, and 2.0 M of thiourea in 1.0 M sulphuric acid as a stripping agent, almost 100% of palladium was extracted from the liquid waste solution and 90% was recovered in the receiving phase.

Remediation and Liquid-Liquid Phase Transfer Extraction of Chromium(VI). A Review

2004 ◽  
Vol 69 (6) ◽  
pp. 1231-1250 ◽  
Author(s):  
Shahabuddin Memon ◽  
D. Max Roundhill ◽  
Mustafa Yilmaz
Keyword(s):  
Phase Transfer ◽  
Human Health Risk ◽  
Liquid Extraction ◽  
Review Article ◽  
Chromium Vi ◽  
Chromium Plating ◽  
Liquid Liquid Extraction ◽  
Increased Risk ◽  
Dichromate Anions ◽  
The Relationship

Chromium(VI) is a widely used industrial chemical, and is generally considered to pose a greatest human health risk because it is more toxic, more soluble, and more mobile than chromium(III). Workers in industries that use chromium, in particular stainless steel welding, chromate production, chromium plating, and chrome pigment industries, where exposure via inhalation of aerosols is primarily to hexavalent chromium, are at increased risk of chromium effects. In this article we demonstrate various studies regarding remediation methods in particular liquid-liquid extraction of chromate and dichromate anions with various functionalized calixarenes. This review article briefly discusses various molecular designs of calixarene-type macrocycles for chromium(VI) oxoanion recognition, and gives examples on the relationship between structure and selectivity. The article does not, however, attempt to cover all of the different approaches to chromium(VI) extraction. A review with 73 references.

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