Effect of secondary alcohol ethoxylates on behavior of triolein-water-surfactant systems

1994 ◽  
Vol 71 (1) ◽  
pp. 65-73 ◽  
Author(s):  
Teeradetch Tungsubutra ◽  
Clarence A. Miller
Keyword(s):  
Secondary Alcohol ◽  
Alcohol Ethoxylates ◽  
Surfactant Systems

Secondary Alcohol Ethoxylates

1981 ◽  
pp. 113-157 ◽  
Author(s):  
NAOJI KURATA ◽  
KAZUO KOSHIDA ◽  
HIROMI YOKOYAMA ◽  
TAKAKIYO GOTO
Keyword(s):  
Secondary Alcohol ◽  
Alcohol Ethoxylates

scholarly journals Recovery of Alcohol Ethoxylates Nonionic Surfactant using Co-Current Vacuum Stripping

2011 ◽  
Vol 11 (1) ◽  
pp. 22
Author(s):  
Suratsawadee Kungsanant ◽  
Sirinthip Kittisrisawai ◽  
Boonyarach Kitiyanan ◽  
Thirasak Rirksomboon ◽  
Somchai Osuwan ◽  
...  
Keyword(s):  
Nonionic Surfactant ◽  
Organic Compounds ◽  
Organic Contaminants ◽  
Secondary Alcohol ◽  
Packed Column ◽  
Hydrophobic Effect ◽  
Current Mode ◽  
Alcohol Ethoxylates ◽  
Volatile Organic ◽  
Volatile Organic Contaminants

Cloud point extraction (CPE) has shown to be an effective technique to remove organic compounds from contaminated water using nonionic surfactant as a separating agent. To make this process more economically attractive, the spent nonionic surfactants should be recycled and reused. This work utilized a packed column operated under vacuum in co-current mode to remove the volatile organic compounds (VOCs) from the secondary alcohol ethoxylates, AEs, coacervate solution. The co-current operation can effectively avoid plugging, excessive foaming, and flooding. The selected volatile organic contaminants are aromatic hydrocarbons such as benzene, toluene, and ethylbenzene. The hydrophobic properties of the VOCs are described by an octanol-water partition coefficient (Kow). The results show that as the Kow increases, the Ks substantially increases while the Happ of the VOCs significantly decreases. The reduction of VOCs volatilization is possibly due to greater partitioning of the VOCs into surfactant micelles. The similar trend is also observed in the continuous operation. The results show that as the Kow increases, the percentage of VOCs removal and the Kxa decrease due to the VOCs’ hydrophobic effect. The removal percentages of the VOCs vary from 60 to 90%. The R2 of the log-log and semi-log relationships between Kow and studied parameters are observed in the range of 0.96-0.99.

Effect of Oxyethylene Numbers on Surface Dilational Properties of Alkyl Secondary Alcohol Ethoxylates

2011 ◽  
Vol 32 (4) ◽  
pp. 490-497
Author(s):  
Yang Li ◽  
Lei Zhang ◽  
Lu Zhang ◽  
Lan Luo ◽  
Sui Zhao ◽  
...  
Keyword(s):  
Secondary Alcohol ◽  
Alcohol Ethoxylates

Isomeric Effect of Linear Secondary Alcohol Ethoxylates on Surfactant Performance

2021 ◽  
Author(s):  
Sung-Yu Ku ◽  
Wen Sheng Lee ◽  
Nathan Rau ◽  
Wanda Buckner ◽  
Margaret Whitley ◽  
...  
Keyword(s):  
Secondary Alcohol ◽  
Alcohol Ethoxylates ◽  
Isomeric Effect

Plant Response to Octylphenol and Secondary Alcohol Ethoxylates

2009 ◽  
pp. 201-201-10
Author(s):  
FA Manthey ◽  
EF Szelezniak ◽  
JD Nalewaja ◽  
JD Davidson
Keyword(s):  
Secondary Alcohol ◽  
Plant Response ◽  
Alcohol Ethoxylates

Microwave-assisted oxidation of a secondary alcohol using a Gold catalyst immobilized onto gel-supported Ionic Liquid like phases (g-SILLPs)

2008 ◽  
Author(s):  
Julián Restrepo ◽  
Santiago Luis ◽  
M. Burguete ◽  
Eduardo García-Verdugo
Keyword(s):  
Ionic Liquid ◽  
Secondary Alcohol ◽  
Gold Catalyst ◽  
Supported Ionic Liquid ◽  
Microwave Assisted

Biodegradation of Alcohol Ethoxylates by Bacterial Consortium from Industrial Wastewater

2013 ◽  
Vol 50 (1) ◽  
pp. 31-35 ◽  
Author(s):  
Dorota Nowicka ◽  
Irena Budnik ◽  
Joanna Zembrzuska
Keyword(s):  
Industrial Wastewater ◽  
Bacterial Consortium ◽  
Alcohol Ethoxylates

scholarly journals Enzymatic and Chemical Cross-Linking of Bacterial Cellulose/Fish Collagen Composites—A Comparative Study

2021 ◽  
Vol 22 (7) ◽  
pp. 3346
Author(s):  
Agata Sommer ◽  
Paulina Dederko-Kantowicz ◽  
Hanna Staroszczyk ◽  
Sławomir Sommer ◽  
Marek Michalec
Keyword(s):  
Thermal Stability ◽  
Bacterial Cellulose ◽  
Secondary Alcohol ◽  
Water Vapor Permeability ◽  
Polymer Chains ◽  
Cross Linking ◽  
Vapor Permeability ◽  
Covalent Bonds ◽  
Fish Collagen ◽  
Chemical Cross Linking

This article compares the properties of bacterial cellulose/fish collagen composites (BC/Col) after enzymatic and chemical cross-linking. In our methodology, two transglutaminases are used for enzymatic cross-linking—one recommended for the meat and the other proposed for the fish industry—and pre-oxidated BC (oxBC) is used for chemical cross-linking. The structure of the obtained composites is characterized by scanning electron microscopy, thermogravimetric analysis, X-ray diffraction, and Fourier transform infrared spectroscopy, and their functional properties by mechanical and water barrier tests. While polymer chains in uncross-linked BC/Col are intertwined by H-bonds, new covalent bonds in enzymatically cross-linked ones are formed—resulting in increased thermal stability and crystallinity of the material. The C2–C3 bonds cleavage in D-glucose units, due to BC oxidation, cause secondary alcohol groups to vanish in favor of the carbonyl groups’ formation, thus reducing the number of H-bonded OHs. Thermal stability and crystallinity of oxBC/Col remain lower than those of BC/Col. The BC/Col formation did not affect tensile strength and water vapor permeability of BC, but enzymatic cross-linking with TGGS improved them significantly.

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