Extraction Of Remazol Brilliant Orange 3R From Textile Wastewater Using Tetrabutyl Ammonium Bromide

2012 ◽  
Author(s):  
Norasikin Othman ◽  
Norlisa Mili ◽  
Siti Nazrah Zailani ◽  
Nurul Aimi Badriah Mohammad

Air sisa buangan tekstil yang mengandungi pewarna adalah merbahaya kepada persekitaran dan mempengaruhi kehidupan akuatik. Kepekatan pewarna ini mestilah dikurangkan ke paras yang dibenarkan sebelum dibuang ke persekitaran. Dalam kajian ini, kaedah pengekstrakan cecair telah digunakan untuk mengkaji perolehan semula pewarna Remazol Brilliant Orange 3R daripada air sisa dengan menggunakan tetrabutilammonia bromida dalam diklorometana. Parameter yang dikaji adalah kesan pelarut, pH larutan, kepekatan pengekstrak, kepekatan awal pewarna dan egen pelucut yang sesuai untuk mengekstrak semula pewarna daripada fasa organik. Keputusan eksperimen menunjukkan hampir 100% daripada 100mgL-1 Remazol Brilliant Oren 3R telah diekstrak menggunakan 0.01 M tetrabutilammonia bromida (TBAB) dan tiada pengaruh pH larutan suapan yang ketara ke atas proses pengekstrakan pewarna. Pewarna yang telah diekstrak boleh diperolehi semula daripada larutan organik dengan menggunakan asid salisilik dalam larutan natrium hidroksida dengan nisbah 1:1. Kata kunci: Pengekstrakan cecair; pewarna reaktif azo; oren 3R; tetrabutilammonia bromida; air sisa tektil Textile wastewater containing dyes is dangerous to the environment and affect mainly to some aquatic life. Their concentration must be reduced to acceptable levels before discharging into environment. In this research liquid-liquid extraction method is used to study on the recovery of Remazol Brilliant Orange 3R dye (orange 3R) from textile wastewater by using tetrabutyl ammonium bromide in dichloromethane. The parameter examined in this research were the effect of diluents, effect of pH, effect of extractant concentration, initial dye concentration and the suitable stripping agent to extract back the dye from organic phase. The result showed that almost 100% of 100 mgL-1 Orange 3R was extracted using 0.01 M tetrabutylammonium bromide (TBAB) and no significant affect of pH of feed phase solution on dye extraction. Extracted dye in the organic phase can be back extracted using salicylic acid in sodium hydroxide solution with ratio 1:1. Key words: Liquid–liquid extraction; reactive azo dye; Orange 3R; tetrabutyl ammonium bromide; textile wastewater

2014 ◽  
Vol 67 (2) ◽  
Author(s):  
Norasikin Othman ◽  
Noor Sa’ida Nafisah Mohd Aziz ◽  
Norlisa Harruddin

Dyes caused serious environmental pollution and health problem in many ways. Many dyes have toxic effects on aquatic life and also on humans. Liquid-liquid extraction process is one of the alternatives for dye removal from wastewater. Removal of remazol red 3BS from simulated textile wastewater using tetrabutyl ammonium bromide has been studied at room temperature with total operation time of 18 hours. Several parameters have been studied such as pH, diluents, initial dye concentration, extractant concentration and stripping agents toward the extraction process of the dye. The results show only small effects of pH on the extraction percentage. The best diluent for the extraction is dichloromethane with the percentage of 98%. The percentage of extraction is maximum (97%) at 0.07M of TBAB concentration with the distribution ratio of D= 34.65. Salicylic acid in Na2CO3 with the ratio of 1:2 gives the highest percentage of stripping process. It shows a good performance for liquid-liquid extraction of remazol red 3BS for both removal and recovery processes.


2019 ◽  
Vol 16 (11) ◽  
pp. 906-910
Author(s):  
Arman Shokooh Saljooghi ◽  
Hojatollah Khabazzadeh ◽  
Moj Khaleghi

A new series of benzamido alkyl naphthols were synthesized from the multi-component reaction of 4-(3′-methylthioureido)benzamide, aromatic aldehydes and 2-naphthol. Molten tetrabutyl ammonium bromide was used as a very efficient medium for this reaction while the use of common organic solvents gave no or poor yields. This method is an interesting instance of using molten salt as a medium in multicomponent reactions.


Tetrahedron ◽  
2014 ◽  
Vol 70 (16) ◽  
pp. 2669-2673 ◽  
Author(s):  
Hailei Wang ◽  
Yuping Ma ◽  
Heng Tian ◽  
Ajuan Yu ◽  
Junbiao Chang ◽  
...  

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 539 ◽  
Author(s):  
Zhang-Qin Liu ◽  
Peng-Sheng You ◽  
Liang-Dong Zhang ◽  
Da-Qing Liu ◽  
Sheng-Shu Liu ◽  
...  

A highly efficient sulfonylation of para-quinone methides with sulfonyl hydrazines in water has been developed on the basis of the mode involving a tetrabutyl ammonium bromide (TBAB)-promoted sulfa-1,6-conjugated addition pathway. This reaction provides a green and sustainable method to synthesize various unsymmetrical diarylmethyl sulfones, showing good functional group tolerance, scalability, and regioselectivity. Further transformation of the resulting diarylmethyl sulfones provides an efficient route to some functionalized molecules.


2013 ◽  
Vol 404 ◽  
pp. 132-136
Author(s):  
Jing Han

To explore environmentally benign method for preparing TiO2, composite photocatalysts TiO2 immobilized on activated carbon fibers (TiO2/ACF) were prepared in caprolactam tetrabutyl ammonium bromide ionic liquid (CPL-TBAB ILs). The TiO2/ACF composites were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM).The effects of different preparation condition were discussed by degradation of methyl orange (MO). The results showed that nanoTiO2 particles of mixed grain phase were well deposited on the activated carbon fiber surface. 96% of MO was removed under optimal preparation conditions.


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