دورية أكاديمية
Synthesis of a Grease Thickener from Cashew Nut Shell Liquor.
| العنوان: | Synthesis of a Grease Thickener from Cashew Nut Shell Liquor. |
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| المؤلفون: | Hoang SA; Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi 11355, Vietnam.; Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi 11355, Vietnam., Pham KD; Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi 11355, Vietnam., Nguyen NH; Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi 11355, Vietnam., Tran HT; Viet Tri Industry Institute, Viet Tri 290000, Vietnam., Hoang N; Government Office, Hanoi 11355, Vietnam., Phan CM; Discipline of Chemical Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia. |
| المصدر: | Molecules (Basel, Switzerland) [Molecules] 2023 Nov 16; Vol. 28 (22). Date of Electronic Publication: 2023 Nov 16. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: MDPI Country of Publication: Switzerland NLM ID: 100964009 Publication Model: Electronic Cited Medium: Internet ISSN: 1420-3049 (Electronic) Linking ISSN: 14203049 NLM ISO Abbreviation: Molecules Subsets: PubMed not MEDLINE; MEDLINE |
| أسماء مطبوعة: | Original Publication: Basel, Switzerland : MDPI, c1995- |
| مستخلص: | Thickener, also known as a gelling agent, is a critical component of lubricating greases. The most critical property of thickener, temperature resistance, is determined by the molecular structure of the compounds. Currently, all high-temperature-resistant thickeners are based on 12-hydroxystearic acid, which is exclusively produced from castor oil. Since castor oil is also an important reagent for other processes, finding a sustainable alternative to 12-hydroxystearic acid has significant economic implications. This study synthesises an alternative thickener from abundant agricultural waste, cashew nut shell liquor (CNSL). The synthesis and separation procedure contains three steps: (i) forming and separating calcium anacardate by precipitation, (ii) forming and separating anacardic acid (iii) forming lithium anacardate. The obtained lithium anacardate can be used as a thickener for lubricating grease. It was found that the recovery of anacardic acid was around 80%. The optimal reaction temperature and time conditions for lithium anacardate were 100 °C and 1 h, respectively. The method provides an economical alternative to castor and other vegetable oils. The procedure presents a simple pathway to produce the precursor for the lubricating grease from agricultural waste. The first reaction step can be combined with the existing distillation of cashew nut shell processing. An effective application can promote CNSL to a sustainable feedstock for green chemistry. The process can also be combined with recycled lithium from the spent batteries to improve the sustainability of the battery industry. |
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| فهرسة مساهمة: | Keywords: anacardic acid; cashew nut shell liquor; grease; lithium hydroxide; lubricant; thickener |
| تواريخ الأحداث: | Date Created: 20231125 Latest Revision: 20231127 |
| رمز التحديث: | 20240628 |
| مُعرف محوري في PubMed: | PMC10674271 |
| DOI: | 10.3390/molecules28227624 |
| PMID: | 38005345 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1420-3049 |
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| DOI: | 10.3390/molecules28227624 |