Enhancement of the quick lime‐based solidification/stabilization of oily wastes using modified clay

2021 ◽  
Author(s):  
Mojtaba Tayebi Jebeli ◽  
Nima Heidarzadeh
Keyword(s):  
Quick Lime ◽  
Modified Clay

Improving Properties of Expansive Soil Using Cement, Quick Lime and Cement-Lime Blend

2019 ◽  
Vol 10 (2) ◽  
pp. 94 ◽  
Author(s):  
Abdulla A. Sharo ◽  
Yusuf A. Alhowaidi ◽  
Mohammad S. Al-Tawaha
Keyword(s):  
Expansive Soil ◽  
Quick Lime

scholarly journals Evolution of physicochemical properties of quick lime at converter-smelting temperature

2021 ◽  
Vol 40 (1) ◽  
pp. 32-39
Author(s):  
Mengxu Zhang ◽  
Jianli Li ◽  
Zhengliang Xue ◽  
Renlin Zhu ◽  
Qiqiang Mou ◽  
...  
Keyword(s):  
Boundary Migration ◽  
Average Diameter ◽  
Dissolution Behavior ◽  
Grain Boundary Migration ◽  
Average Pore ◽  
Quick Lime ◽  
Volume Stability ◽  
Steel Making ◽  
Dissolution Efficiency ◽  
Lime Reactivity

Abstract The volume stability caused by the hydration of f-CaO is one of the main obstacles to the comprehensive utilization of steel-making slag. In view of the f-CaO produced by incomplete dissolution of lime, it is necessary to strengthen the dissolution behavior of lime in the converter process. The reactivity of lime determines the dissolution efficiency and is closely related to its microstructure. The experimental results show that the reactivity and porosity of quick lime decrease and the average diameter of pore increases with an increase in temperature. The CaO crystals gradually grow up under the action of grain boundary migration. When the temperature increased from 1,350 to 1,600°C, the lime reactivity decreased from 237.60 to 40.60 mL, the porosity decreased from 30.55 to 15.91%, the average pore diameter increased from 159.10 to 1471.80 nm, and the average CaO particle size increased from 0.33 to 9.61 µm. The results indicate that reactivity is decreased because of the deformation and growth of CaO crystals and the decrease in porosity in reactive lime. This will cause an obstacle to the dissolution of lime and is not conducive to the control of f-CaO in slag.

Calcium Methoxide Synthesis from Quick Lime Using as Solid Catalyst in Refined Palm Oil Biodiesel Production

2013 ◽  
Vol 834-836 ◽  
pp. 550-554 ◽  
Author(s):  
Warakom Suwanthai ◽  
Vittaya Punsuvon ◽  
Pilanee Vaithanomsat
Keyword(s):  
Palm Oil ◽  
Acid Methyl Ester ◽  
Biodiesel Production ◽  
Molar Ratio ◽  
Catalyst Loading ◽  
Solid Catalyst ◽  
Solid Base ◽  
Quick Lime ◽  
X Ray ◽  
Refined Palm Oil

In this research, calcium methoxide was synthesized as solid base catalyst from quick lime for biodiesel production. The catalyst was further characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), attenuated total reflection fourier transform (ATR-FTIR) and Energy-dispersive X-ray spectroscopies (EDX) to evaluate its performance. The transesterification of refined palm oil using calcium methoxide and the process parameters affecting the fatty acid methyl ester (FAME) content such as catalyst concentration, methanol:oil molar ratio and reaction time were investigated. The results showed that the FAME content at 97% was achieved within 3 h using 3 %wt catalyst loading, 12:1 methanol:oil molar ratio and 65 °C reaction temperature. The result of FAME suggested calcium methoxide was the promising solid catalyst for substitution of the conventional liquid catalyst.

Asymmetric mixed matrix membrane incorporating organically modified clay particle for gas separation

2014 ◽  
Vol 241 ◽  
pp. 495-503 ◽  
Author(s):  
A.K. Zulhairun ◽  
A.F. Ismail ◽  
T. Matsuura ◽  
M.S. Abdullah ◽  
A. Mustafa
Keyword(s):  
Gas Separation ◽  
Clay Particle ◽  
Mixed Matrix Membrane ◽  
Mixed Matrix ◽  
Modified Clay ◽  
Organically Modified

scholarly journals The Characteristics of Quick Lime Consolidated Briquette as a Soil Stabilizer

1990 ◽  
Vol 30 (3) ◽  
pp. 137-143 ◽  
Author(s):  
Takao Ito ◽  
Arie Asada ◽  
Tatsuo Konno
Keyword(s):  
Quick Lime ◽  
Soil Stabilizer

Immobilization of fungal laccase onto a nonionic surfactant-modified clay material: application to PAH degradation

2015 ◽  
Vol 23 (5) ◽  
pp. 4024-4035 ◽  
Author(s):  
Yi-Tang Chang ◽  
Jiunn-Fwu Lee ◽  
Keng-Hua Liu ◽  
Yi-Fen Liao ◽  
Vivian Yang
Keyword(s):  
Nonionic Surfactant ◽  
Clay Material ◽  
Fungal Laccase ◽  
Modified Clay ◽  
Pah Degradation

Plasticizer effect and electronic diffusive behavior of polyaniline-modified clay in polystyrene nanocomposites

2017 ◽  
Vol 40 (1) ◽  
pp. 37-45
Author(s):  
Camila P. Pinto ◽  
Wagner M. Pachekoski ◽  
Carla Dalmolin ◽  
Daniela Becker
Keyword(s):  
Modified Clay ◽  
Diffusive Behavior

Use of polysaccharide based surfactants to stabilize organically modified clay particles aqueous dispersion

2013 ◽  
Vol 94 (1) ◽  
pp. 687-694 ◽  
Author(s):  
Manja Kurečič ◽  
Majda Sfiligoj Smole ◽  
Karin Stana-Kleinschek
Keyword(s):  
Aqueous Dispersion ◽  
Clay Particles ◽  
Modified Clay ◽  
Organically Modified
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