Preparation of high purity squalene from soybean oil deodorizer distillate with the combination of macroporous resin and thin-film evaporation coupling distillation

Yang, Zujin; Li, Haibo; Duan, Di; Yao, Xingdong; Chen, Jie-Wei; Ji, Hongbing

doi:10.1080/01496395.2019.1606017

Cited by 3 publications

(2 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8−11 So far, this technology has been generally used to purify thermal sensitive liquid substances in the process industry such as pharmaceutical, cosmetic production industries. 12,13 Considering the features of this technology, we speculate that this technology is suitable to the TETNB synthesis process. To the best of our knowledge, no studies have been reported to conduct reactions using this wiped film evaporator/distillation coupled technology.…”

Section: Introductionmentioning

confidence: 96%

“…For achieving continuous, safe, and efficient alkylation reaction, the wiped film evaporator/distillation coupled technology will be applied in this work. This technology combines the advantages of both wiped film evaporator and distillation such as low liquid hold-up, good heat transfer characteristics, low pressure drop, and liquid mixture separation. − So far, this technology has been generally used to purify thermal sensitive liquid substances in the process industry such as pharmaceutical, cosmetic production industries. , Considering the features of this technology, we speculate that this technology is suitable to the TETNB synthesis process. To the best of our knowledge, no studies have been reported to conduct reactions using this wiped film evaporator/distillation coupled technology.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Continuous and Safe Alkylation of 1,3,5-Trihydroxy-2,4,6-trinitrobenzene using Wiped Film Evaporator/Distillation Coupled Technology

Shao

Feng²,

Guo

et al. 2022

Org. Process Res. Dev.

View full text Add to dashboard Cite

Alkylation of 1,3,5-trihydroxy-2,4,6-trinitrobenzene (TNPG) is a key reaction to the synthesis of 2,4,6trinitrobenzene-1,3,5-triamine, which is a famous insensitive high-energy material. Running this alkylation in the traditional stirred reactors has a high risk of spill and eruption incidents because of the evaporation of large amounts of volatile side-products. In this work, a wiped film evaporator/distillation coupled technology was used to run this reaction in a continuous and safe way. The design of the operation parameters was based on thorough understandings on reaction kinetics, residence time distribution, and heat transfer capacity of the wiped film evaporator. The results showed that while the jacket temperature and feed speed could significantly affect the alkylation, the effect of feed temperature and rotating speed on this reaction could be neglected. Under the optimal operating conditions, the conversion of TNPG and yield of 1,3,5-triethoxy-2,4,6-trinitrobenzene were 99.4 and 98.9%, respectively. Compared to the batchwise operation, alkylation of TNPG using the wiped film evaporator/distillation coupled technology is better in terms of safety, evaporation ability, productivity, and yield.

show abstract

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Continuous and Safe Alkylation of 1,3,5-Trihydroxy-2,4,6-trinitrobenzene using Wiped Film Evaporator/Distillation Coupled Technology

Shao

Feng²,

Guo

et al. 2022

Org. Process Res. Dev.

View full text Add to dashboard Cite

show abstract

Plasticization of Polylactide Using Biobased Epoxidized Isobutyl Esters Derived from Waste Soybean Oil Deodorizer Distillate

Najera-Losada,

Narváez-Rincón,

Orjuela

et al. 2024

J Polym Environ

View full text Add to dashboard Cite

A series of epoxidized isobutyl esters (EIE) derived from soybean oil deodorizing distillate (SODD) were synthesized via esterification with isobutanol followed by epoxidation. Epoxidized isobutyl soyate (EIS), epoxidized isobutyl soyate distillate (EISD), as well as the epoxidized esters of the main fatty acids contained in SODD, namely, epoxidized isobutyl linoleate (EIL), and epoxidized isobutyl oleate (EIO) were also synthesized and assessed as environmentally friendly plasticizers for polylactide (PLA). A comparison of the plasticizing efficiency of 10 wt.% of these EIE on PLA properties is addressed in this work. The effects of the different EIE on mechanical properties (tensile and impact tests) at 21 ºC, thermal transitions and thermal degradation, dynamic-mechanical thermal properties and dimensional change with temperature, and morphology are evaluated and compared with commercial epoxidized soybean oil (ESBO), and acetyl tributyl citrate (ATBC). Tensile tests indicate that EIE provide increased elongation at break from 8.8% (neat PLA), up to 10–32%, depending on the EIE. EIE seem to be more compatible with PLA as observed by field emission scanning electron microscopy (FESEM) since they do not give evidence of phase separation, or plasticizer saturation, which is clearly observed with ESBO. Regarding thermal properties, all EIE provide a noticeable decrease in the glass transition temperature (Tg) from 61.6 ºC (neat PLA), down to values ranging from 42 to 48 ºC, remarkably lower than the decrease provided by ESBO with a Tg value of 56.6 ºC. These findings reveal that EIE are promising plasticizers for PLA with balanced properties and contribute to improve its intrinsic brittleness by increasing the impact toughness.

show abstract

Ultrasound-Assisted Extraction of Squalene and 2-Acetyl-1-Pyrroline from Pandan Leaf: The Effects of Drying Methods and Extraction Conditions

Cheng,

Fei,

Liu

et al. 2024

Foods

View full text Add to dashboard Cite

Pandan, a tropical crop, is rich in squalene (SQ), known for its antioxidant and hypoglycemic properties, and 2-acetyl-1-pyrroline (2-AP), which imparts a characteristic aroma. This study focuses on the extraction of the two bioactive compounds from Pandan leaves and investigates the effects of drying methods, extraction solvents, and conditions on the yield of SQ and 2-AP. Results show that hot air-dried Pandan leaves when extracted using the binary solvent system of ethanol and n-hexane (EH), yield higher SQ content while maintaining an adequate content of 2-AP. To further optimize the extraction process, a single-factor experiment was followed by optimization using Box–Behnken design (BBD) and response surface methodology (RSM). The optimal extraction conditions were determined as follows: ultrasound time of 60 min, a temperature of 50 °C, power of 300 W, and a solid-to-liquid ratio of 1:5 g/mL. Under these conditions, an SQ yield of 1229.98 ± 13.09 μg/DW 1 g Pandan leaves and a 2-AP yield of 80.72 ± 0.88 μg/DW 1 g Pandan leaves were achieved, representing increases of 3.30% and 9.82% compared to pre-optimization values. Additionally, the antioxidant activities of EH extracts were evaluated through various in vitro assays. The extracts demonstrated significant DPPH and ABTS free radical scavenging activity (12.46 μmol TE/g DW and 22.14 μmol TE/g DW, respectively), along with ferric and cupric ion reducing power (10.629 μmol TE/g DW and 14.275 μmol TE/g DW, respectively). The extracts also exhibited notable inhibitory effects on α-amylase and α-glucosidase. The findings suggest that these extracts are a promising natural source of antioxidants with potential applications in health and nutrition.

show abstract

Preparation of high purity squalene from soybean oil deodorizer distillate with the combination of macroporous resin and thin-film evaporation coupling distillation

Cited by 3 publications

References 49 publications

Continuous and Safe Alkylation of 1,3,5-Trihydroxy-2,4,6-trinitrobenzene using Wiped Film Evaporator/Distillation Coupled Technology

Continuous and Safe Alkylation of 1,3,5-Trihydroxy-2,4,6-trinitrobenzene using Wiped Film Evaporator/Distillation Coupled Technology

Plasticization of Polylactide Using Biobased Epoxidized Isobutyl Esters Derived from Waste Soybean Oil Deodorizer Distillate

Ultrasound-Assisted Extraction of Squalene and 2-Acetyl-1-Pyrroline from Pandan Leaf: The Effects of Drying Methods and Extraction Conditions

Contact Info

Product

Resources

About