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Synthesis and characterization of polyol poly-12-hydroxy stearic acid / Yonglei Wang in Industrial & engineering chemistry research, Vol. 48 N° 8 (Avril 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 8 (Avril 2009) . - pp. 3749–3754 Titre : Synthesis and characterization of polyol poly-12-hydroxy stearic acid : applications in preparing environmentally friendly overbased calcium oleate detergent Type de document : texte imprimé Auteurs : Yonglei Wang, Auteur ; Wumanjiang Eli, Auteur ; Ayixiamuguli Nueraimaiti, Auteur Année de publication : 2009 Article en page(s) : pp. 3749–3754 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Poly-12-hydroxy  stearic  acid  Esterification  Polyol  polymeric  hyperdispersant  FT-IR  analysis Résumé : In this study, the poly-12-hydroxy stearic acid (PTHSA) was synthesized and then modified by esterification with pentaerythritol to obtain a polyol polymeric hyperdispersant (polyol-PTHSA). Under suitable reaction conditions (molar ratio pentaerythritol/PTHSA, 1.2:1; reaction temperature, 453 K; and reaction time, 4−8 h), the polyol-PTHSA with acid value of 3 mg of KOH/g can be obtained. The structures were confirmed by FT-IR analysis. The polyol-PTHSA was subsequently used as a hyperdispersant in the process of preparing environmentally friendly overbased calcium oleate detergent to increase the total base number of the product. Reaction conditions including the polymerization catalyst, the catalyst amount, the amount of xylene, the polymerization temperature, the polymerization time, the polyol-PTHSA amount, and the acid value of the PTHSA were optimized. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8016016 [article] Synthesis and characterization of polyol poly-12-hydroxy stearic acid : applications in preparing environmentally friendly overbased calcium oleate detergent [texte imprimé] / Yonglei Wang, Auteur ; Wumanjiang Eli, Auteur ; Ayixiamuguli Nueraimaiti, Auteur . - 2009 . - pp. 3749–3754. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 8 (Avril 2009) . - pp. 3749–3754 Mots-clés : Poly-12-hydroxy  stearic  acid  Esterification  Polyol  polymeric  hyperdispersant  FT-IR  analysis Résumé : In this study, the poly-12-hydroxy stearic acid (PTHSA) was synthesized and then modified by esterification with pentaerythritol to obtain a polyol polymeric hyperdispersant (polyol-PTHSA). Under suitable reaction conditions (molar ratio pentaerythritol/PTHSA, 1.2:1; reaction temperature, 453 K; and reaction time, 4−8 h), the polyol-PTHSA with acid value of 3 mg of KOH/g can be obtained. The structures were confirmed by FT-IR analysis. The polyol-PTHSA was subsequently used as a hyperdispersant in the process of preparing environmentally friendly overbased calcium oleate detergent to increase the total base number of the product. Reaction conditions including the polymerization catalyst, the catalyst amount, the amount of xylene, the polymerization temperature, the polymerization time, the polyol-PTHSA amount, and the acid value of the PTHSA were optimized. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8016016

Synthesis of biodegradable high-alkali magnesium oleate detergent / Yonglei Wang in Industrial & engineering chemistry research, Vol. 49 N° 6 (Mars 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 6 (Mars 2010) . - pp. 2589–2592 Titre : Synthesis of biodegradable high-alkali magnesium oleate detergent Type de document : texte imprimé Auteurs : Yonglei Wang, Auteur ; Wumanjiang Eli, Auteur Année de publication : 2010 Article en page(s) : pp. 2589–2592 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Synthesis  Biodegradable  Alkali  Magnesium  Oleate  Detergent Résumé : This article covers a method for synthesizing biodegradable high-alkali magnesium oleate detergent with a total base number (TBN) value of 256 mg KOH/g. The biodegradable, environmentally friendly high-alkali magnesium oleate detergent was synthesized using oleic acid and magnesium oxide (Light) as raw materials. Reaction conditions including the choice of alkaline magnesium salt, the molar ratio of magnesium oxide to oleic acid, the amount of methanol, the amount of ammonia, the carbonation temperature, the molar ratio of water to magnesium oxide, the gas flow rate of CO2, and the molar ratio of injected CO2 to magnesium oxide were optimized. Under the optimized conditions, a high-alkali magnesium oleate detergent with TBN of 256 mg KOH/g could be obtained. ISSN : 05888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901569g [article] Synthesis of biodegradable high-alkali magnesium oleate detergent [texte imprimé] / Yonglei Wang, Auteur ; Wumanjiang Eli, Auteur . - 2010 . - pp. 2589–2592. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 6 (Mars 2010) . - pp. 2589–2592 Mots-clés : Synthesis  Biodegradable  Alkali  Magnesium  Oleate  Detergent Résumé : This article covers a method for synthesizing biodegradable high-alkali magnesium oleate detergent with a total base number (TBN) value of 256 mg KOH/g. The biodegradable, environmentally friendly high-alkali magnesium oleate detergent was synthesized using oleic acid and magnesium oxide (Light) as raw materials. Reaction conditions including the choice of alkaline magnesium salt, the molar ratio of magnesium oxide to oleic acid, the amount of methanol, the amount of ammonia, the carbonation temperature, the molar ratio of water to magnesium oxide, the gas flow rate of CO2, and the molar ratio of injected CO2 to magnesium oxide were optimized. Under the optimized conditions, a high-alkali magnesium oleate detergent with TBN of 256 mg KOH/g could be obtained. ISSN : 05888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901569g

Synthesis of environmentally friendly calcium oleate detergent / Yonglei Wang ; Wumanjiang Eli ; Yuanfeng Liu in Industrial & engineering chemistry research, Vol. 47 n°22 (Novembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 n°22 (Novembre 2008) . - p. 8561–8565 Titre : Synthesis of environmentally friendly calcium oleate detergent Type de document : texte imprimé Auteurs : Yonglei Wang, Auteur ; Wumanjiang Eli, Auteur ; Yuanfeng Liu, Auteur Année de publication : 2008 Article en page(s) : p. 8561–8565 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : calcium  oleate  Ca(OH)2  detergent Résumé : This article discusses a method for synthesizing an environmentally friendly calcium oleate detergent using vegetable oil instead of mineral oil as the raw material. Reaction conditions including the molar ratio of total lime [Ca(OH)2 and CaO] to oleic acid, the molar ratio of Ca(OH)2 to CaO, the carbonation temperature, the amount of methanol, the molar ratio of water to CaO, the gas flow rate of CO2, and the molar ratio of injected CO2 to total lime [Ca(OH)2 and CaO] were optimized. Using the optimized conditions, a high-alkali calcium oleate solution with a total base number (TBN) of 376 mg of KOH/g and an overbased calcium oleate solution with a value of TBN = 420 mg of KOH/g could be obtained. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800679a [article] Synthesis of environmentally friendly calcium oleate detergent [texte imprimé] / Yonglei Wang, Auteur ; Wumanjiang Eli, Auteur ; Yuanfeng Liu, Auteur . - 2008 . - p. 8561–8565. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 n°22 (Novembre 2008) . - p. 8561–8565 Mots-clés : calcium  oleate  Ca(OH)2  detergent Résumé : This article discusses a method for synthesizing an environmentally friendly calcium oleate detergent using vegetable oil instead of mineral oil as the raw material. Reaction conditions including the molar ratio of total lime [Ca(OH)2 and CaO] to oleic acid, the molar ratio of Ca(OH)2 to CaO, the carbonation temperature, the amount of methanol, the molar ratio of water to CaO, the gas flow rate of CO2, and the molar ratio of injected CO2 to total lime [Ca(OH)2 and CaO] were optimized. Using the optimized conditions, a high-alkali calcium oleate solution with a total base number (TBN) of 376 mg of KOH/g and an overbased calcium oleate solution with a value of TBN = 420 mg of KOH/g could be obtained. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800679a

Synthesis of environmentally friendly overbased magnesium oleate detergent and high alkaline dispersant / magnesium oleate mixed substrate detergent / Yonglei Wang in Industrial & engineering chemistry research, Vol. 49 N° 19 (Octobre 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 19 (Octobre 2010) . - pp. 8902–8907 Titre : Synthesis of environmentally friendly overbased magnesium oleate detergent and high alkaline dispersant / magnesium oleate mixed substrate detergent Type de document : texte imprimé Auteurs : Yonglei Wang, Auteur ; Wumanjiang Eli, Auteur Année de publication : 2010 Article en page(s) : pp. 8902–8907 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Magnesium  detergent  Oleate Résumé : This article describes a method for synthesizing an environmentally friendly overbased magnesium oleate detergent using oleic acid and active-60 magnesium oxide as materials. Reaction conditions including solvent, molar ratio of active-60 magnesium oxide to oleic acid, molar ratio of methanol to active-60 magnesium oxide, molar ratio of ammonia to active-60 magnesium oxide, addition mode of ammonia, carbonation temperature, molar ratio of injected CO2 to active-60 magnesium oxide, and CO2 rate were optimized. Under the optimized conditions, the overbased magnesium oleate detergent with a total base number (TBN) of 402 mg of KOH/g could be obtained. To improve the dispersing capability and the stability of the magnesium oleate detergent, the different dispersant/magnesium oleate mixed substrate detergents were synthesized using Tuwen-80, poly-12-hydroxystearic acid-pentaerythritol (PTHSAP), and poly-12-hydroxystearic acid-polyethylene polyamine (PTHSAPP) as dispersants. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100377h [article] Synthesis of environmentally friendly overbased magnesium oleate detergent and high alkaline dispersant / magnesium oleate mixed substrate detergent [texte imprimé] / Yonglei Wang, Auteur ; Wumanjiang Eli, Auteur . - 2010 . - pp. 8902–8907. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 19 (Octobre 2010) . - pp. 8902–8907 Mots-clés : Magnesium  detergent  Oleate Résumé : This article describes a method for synthesizing an environmentally friendly overbased magnesium oleate detergent using oleic acid and active-60 magnesium oxide as materials. Reaction conditions including solvent, molar ratio of active-60 magnesium oxide to oleic acid, molar ratio of methanol to active-60 magnesium oxide, molar ratio of ammonia to active-60 magnesium oxide, addition mode of ammonia, carbonation temperature, molar ratio of injected CO2 to active-60 magnesium oxide, and CO2 rate were optimized. Under the optimized conditions, the overbased magnesium oleate detergent with a total base number (TBN) of 402 mg of KOH/g could be obtained. To improve the dispersing capability and the stability of the magnesium oleate detergent, the different dispersant/magnesium oleate mixed substrate detergents were synthesized using Tuwen-80, poly-12-hydroxystearic acid-pentaerythritol (PTHSAP), and poly-12-hydroxystearic acid-polyethylene polyamine (PTHSAPP) as dispersants. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie100377h