Separation of some paraffin wax grades using solvent extraction technique

Zaky, Magdy T.; Saber, Osama; Farag, Amal S.

doi:10.1016/j.fuproc.2011.06.002

Cited by 19 publications

(10 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Solvent debinding is a two stage process consisting of dissolution and diffusion [11]. Initially, solvent dissolves the paraffin wax and stearic acid and forming a porous surface.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Solvent Extraction Characterization on Injection Molding of Mg Alloy

et al. 2017

View full text Add to dashboard Cite

Abstract. The effect of the leaching time and temperature on the solvent debinding process of Mg metal injection molding (MIM) green part has been investigated. In this study, both soluble binder, paraffin wax and stearic acid molecules were removed from the Mg MIM green part by immersing compact parts in heptane solution. Then, the solvent debinding rate has been investigated under the conditions of different leaching time and temperature. The weight loss percentages of paraffin wax and stearic acid were calculated and the pores structure was analyzed by scanning electron micrograph. The efficient diffusivity and activation energy of the soluble binder have also been studied. Result shows that the removal of soluble binder at high temperature is the fastest, but there are defects observed on the Mg MIM body. It was found that the total amount of binder removal was 68.24 wt.%, 75.56 wt.%, and 84.92 wt.% for leaching temperature of 40 ºC, 60 ºC, and 80 ºC, respectively. The remaining binder will be removed during first cycle of sintering process.

show abstract

“…Solvent debinding is a two stage process consisting of dissolution and diffusion [11]. Initially, solvent dissolves the paraffin wax and stearic acid and forming a porous surface.…”

Section: Methodsmentioning

confidence: 99%

“…They found that temperature and immersion time significantly affect binder weight loss during solvent debinding. Zaki et al [11] successfully separate the paraffin wax grades by applying the solvent extraction technique at different extraction temperatures and different solvent feed ratios.…”

Section: Introductionmentioning

confidence: 99%

Solvent Extraction Characterization on Injection Molding of Mg Alloy

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Then agar plates were incubated at 37ºC for 15 days. After 15 days, there was noticeable growth on both plates which indicated that isolated bacteria are able to degrade the petrol as well as paraffin wax (Figure 2) (Zaky et al, 2011). …”

Section: Enumeration Of Hydrocarbon (Wax and Petrol) Degrading Bacteriamentioning

confidence: 99%

Biodegradation of petroleum hydrocarbon by Micrococcus sp. in form of wax ball

Qadir¹,

Javed²,

Fatima³

2017

Afr. J. Microbiol. Res.

View full text Add to dashboard Cite

Hydrocarbon containing compounds like diesel, crude oil and petrol cause environmental pollution. Hydrocarbon contaminated sites contain large amount of microbial community adapted for utilizing these compound as a source of carbon and other metabolic activities. A study was conducted in order to isolate the micro-organism from hydrocarbon contaminated sites for petroleum degradation. The soil sample was collected from the bus terminal of Punjab University, Lahore. The isolate (Micrococcus sp.) was characterized microbiologically by using microbiological techniques such as staining and biochemical testing based on Bergey's manual. Isolated organism has an ability to degrade the petrol as well as paraffin wax as a sole carbon source. This ability shows clear evidence that genome of this isolate harbors gene for degradation. By combined both properties, we can reduce petroleum product from hydrocarbon impacted environment.

show abstract

“…Here, solvents showed an excellent behavior for wax removal by the dissolution and modification of wax crystals. Solvents have extensive applicability for various wax crystals, 15 and the solvents for wax removal are mostly commercial products, such as short-chain alkanes with low cost, 16 indicating the potentiality for large-scale usage. However, it is worth noting that the traditional solvents (such as toluene and hexane) are toxic and volatile.…”

Section: ■ Introductionmentioning

confidence: 99%

Sustainable Approach for Paraffin Wax Removal Using CO₂ Switchable Solvents

et al. 2021

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

In this work, a sustainable approach for paraffin wax removal by using CO2 switchable-hydrophilicity solvents (SHSs) is developed, where paraffin wax exhibits better solubility in SHSs and can be simply separated by introducing CO2. Here, SHSs exhibit an excellent dissolving capacity for paraffin wax, especially, N,N-dimethylcyclohexylamine (DMCHA). All SHSs can effectively dissolve paraffin wax at a dissolution rate > 0.03 g/min. The detection using differential scanning calorimetry and the rheology behavior demonstrated that the decreased viscosity, melting points, and wax appearance temperature of paraffin wax in SHSs (especially in DMCHA) are lower than in traditional solvents, such as kerosene and petroleum ether, which contributes to improvement in the paraffin wax removal. Furthermore, the polarizing microscope images of paraffin wax reveal that the changed properties of paraffin wax in SHS are attributed to the dispersion of needle-shaped wax crystals in solvent. Interestingly, the paraffin wax is separated from SHS by introducing CO2, and the SHS is recovered under N2 at 65 °C after separating paraffin wax. Here, the recovery of paraffin wax can be improved by increasing water content, temperature, and aeration rate. Based on the molecular dynamics simulation, it is revealed that paraffin wax containing hydrocarbons (the main component of wax) with different alkane carbon numbers exhibits good dissolution behavior in DMCHA. After introducing CO2, the separation of paraffin wax is caused by the transformation from the hydrophobic state to the hydrophilic state of DMCHA.

show abstract

Separation of some paraffin wax grades using solvent extraction technique

Cited by 19 publications

References 6 publications

Solvent Extraction Characterization on Injection Molding of Mg Alloy

Solvent Extraction Characterization on Injection Molding of Mg Alloy

Biodegradation of petroleum hydrocarbon by Micrococcus sp. in form of wax ball

Sustainable Approach for Paraffin Wax Removal Using CO₂ Switchable Solvents

Contact Info

Product

Resources

About

Separation of some paraffin wax grades using solvent extraction technique

Cited by 19 publications

References 6 publications

Solvent Extraction Characterization on Injection Molding of Mg Alloy

Solvent Extraction Characterization on Injection Molding of Mg Alloy

Biodegradation of petroleum hydrocarbon by Micrococcus sp. in form of wax ball

Sustainable Approach for Paraffin Wax Removal Using CO2 Switchable Solvents

Contact Info

Product

Resources

About

Sustainable Approach for Paraffin Wax Removal Using CO₂ Switchable Solvents