Component fractionation of wood-tar by column chromatography with the packing material of silica gel

Wang, Ze; Lin, W.; Song, Wen Li; Du, Lin; Li, Zheng Jie; Yao, Jian Zhong

doi:10.1007/s11434-010-4144-x

Cited by 13 publications

(10 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The separation principal of silica gel chromatography is the differences in adsorption of different substances on silica gel . The polarity of eluents and substances is a key factor in the selection of solvent/eluent in this separation process.…”

Section: Resultsmentioning

confidence: 99%

“…The polarity of eluents and substances is a key factor in the selection of solvent/eluent in this separation process. The commonly used organic solvents are petroleum ether, n‐ hexane, dichloromethane and ethyl acetate, which are displayed in an increased order of polarity . Single organic solvent was firstly attempted to elute the keto acids with the result showing that keto acids could not be eluted by all the solvents except ethyl acetate, which could elute both keto acids together but the resolution was poor.…”

Section: Resultsmentioning

confidence: 99%

“…gel. 22 The polarity of eluents and substances is a key factor in the selection of solvent/eluent in this separation process. The commonly used organic solvents are petroleum ether, n-hexane, dichloromethane and ethyl acetate, which are displayed in an increased order of polarity.…”

Section: Separation Of the Keto Acids By Silica Gel Chromatographymentioning

confidence: 99%

“…Therefore, ion‐exchange chromatography could be attempted to isolate KGA and PYR. Adsorption chromatography is commonly used to separate low‐cost chemical materials, that is, saturates, paraffins and mono‐aromatics as a traditional method . Both the polarity difference of substances and adsorbents play a crucial role in adsorption chromatography.…”

Section: Introductionmentioning

confidence: 99%

“…Adsorption chromatography is commonly used to separate low-cost chemical materials, that is, saturates, paraffins and mono-aromatics as a traditional method. [21][22][23] Both the polarity difference of substances and adsorbents play a crucial role in adsorption chromatography. The polarity of KGA is higher than the polarity of PYR.…”

mentioning

confidence: 99%

See 4 more Smart Citations

Separation of α‐ketoglutaric acid and pyruvic acid from the culture broth of Yarrowia lipolytica WSH‐Z06 by chromatographic methods

Peng

Zeng

et al. 2018

Biotechnology Progress

View full text Add to dashboard Cite

Both α‐ketoglutaric acid (KGA) and pyruvic acid (PYR) are important keto acids. Efficient co‐production of KGA and PYR has been achieved in our previous work, and could significantly decrease the cost of fermentation production. KGA and PYR have similar physical and chemical properties. Hence, finding a way to separate the two keto acids efficiently has become a key challenge. In this study, different chromatographic methods have been investigated, including ion‐exchange chromatography, aluminum oxide chromatography and silica gel chromatography. The results show that the two keto acids can be well separated with silica gel chromatography, whereas ion‐exchange chromatography and aluminum oxide chromatography could not separate them. Using the pretreated fermentation broth of Yarrowia lipolytica WSH‐Z06, the purity and yield of KGA/PYR reached 98.7%/99.1% and 86.7%/70.9%, respectively, with an optimized silica gel chromatography‐based procedure. This study provides an efficient method for separating KGA and PYR from fermentation broth, which might be applied on an industrial scale and significantly decrease the cost of biotechnological production of keto acids. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 34:1370–1379, 2018

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Separation Of the Keto Acids By Silica Gel Chromatographymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Separation of α‐ketoglutaric acid and pyruvic acid from the culture broth of Yarrowia lipolytica WSH‐Z06 by chromatographic methods

Peng

Zeng

et al. 2018

Biotechnology Progress

View full text Add to dashboard Cite

show abstract

Thermochemical Conversion of Rice Straw

Maguyon-Detras

Migo

Hùng

et al. 2019

Sustainable Rice Straw Management

View full text Add to dashboard Cite

Biomass conversion into various forms of energy, such as heat, power, or biofuels using thermal processes, involves the decomposition of biomass by exposure to heat, typically above 300 °C. Thermal conversion processes include pyrolysis, gasification, and direct combustion. Several factors affect the yields and energy recovery from these processes including temperature, reaction time, heating rate, absence, or presence of oxygen, use of catalysts, and pressure. Due to rice straw's relatively high carbon and hydrogen contents, it contains a considerable amount of energy that make it a suitable feedstock for thermal conversion. In this chapter, the basic principles and factors affecting the thermal conversion of biomass into energy are discussed. Studies on the use of rice straw as feedstock to produce heat, power, and biofuels via thermal conversion are reviewed. Utilization of thermal conversion byproducts including biochar and ash will are presented. Thermal processes are compared in terms of energy conversion, possible environmental impacts, and technological and commercial maturity.

show abstract