scholarly journals Bespoke, High-Purity Coal Tar with Microwave Plasma Pyrolysis

2020 ◽  
Author(s):  
Vignesh Viswanathan
Keyword(s):  
High Purity ◽  
Microwave Plasma ◽  
Coal Tar ◽  
Plasma Pyrolysis

Study on the properties of coal-based high-purity graphite

2019 ◽  
Vol 9 (6) ◽  
pp. 668-674 ◽  
Author(s):  
Qili Wang ◽  
Mingquan Yu ◽  
Jiannan Gong ◽  
Fengtao Zhang
Keyword(s):  
High Purity ◽  
Raw Materials ◽  
Coal Tar ◽  
Value Added ◽  
Coal Industry ◽  
Coal Pitch ◽  
Skeletal Density ◽  
Pitch Coke ◽  
Chinese Coal ◽  
Value Added Products

As one of the major value-added products of coal processing and utilization, coal pitch coke and coal tar pitch are used as raw materials to prepare high-purity graphite. The structure characteristics and properties were measured by experiments. The results show that the high-purity graphite has excellent physical properties: the skeletal density of 1.81–1.91 g/cm3, the Shore hardness of 45.5–66.6 Hs, the flexural strength of 33.0–46.1 MPa, the compressive strength of 65.6–75.8 MPa, the ash content of 67–181 ppm, the thermal expansion coefficient of 3.71–4.11 × 10–6/°C, and the electrical resistivity of 8.72–12.13 μΩ · m. Consequently, coal-based graphite materials have excellent properties and good application prospects in solar energy industry, which is an effective exploration for the transformation and upgrading of Chinese coal industry.

Uniform Microwave Plasma Pyrolysis for the Production of Metastable Nanomaterials

2013 ◽  
pp. 99-104
Author(s):  
Kamal Hadidi ◽  
Makhlouf Redjdal ◽  
Eric H. Jordan ◽  
Olivia A. Graeve ◽  
Colby M. Brunet
Keyword(s):  
Microwave Plasma ◽  
Plasma Pyrolysis

Leaching Action of High Purity Water On Plastics and Other Materials

CORROSION ◽  
1960 ◽  
Vol 16 (8) ◽  
pp. 407t-410t
Author(s):  
E. L. KNOEDLER ◽  
J. B. GOODSON
Keyword(s):  
High Purity ◽  
Epoxy Resins ◽  
Pure Aluminum ◽  
Coal Tar ◽  
Storage Tanks ◽  
Commercially Pure ◽  
Hydraulic Cement ◽  
Cement Mixture ◽  
Metal Materials ◽  
Materials Used

Abstract Laboratory tests were made to determine the leaching effects of high purity water on plastics and other materials used in building or lining of high purity water storage tanks. Specifically tested were enamels used in painting interiors of condensate storage tanks, materials used for filter tubes, plastic and metal materials of construction, and miscellaneous coating and linings materials. Materials tested include polyethylene, epoxy resins, phenol-formal-dehyde resins, cotton, cellulose acetate, glass fiber, mineral rubber with inert filler mixture, asphalt clay-cement mixture, polyvinyl over sprayed zinc and aluminum, sprayed zinc and aluminum, hydraulic cement, commercially pure aluminum, and coal tar enamels. 4.6.5

Separation of high purity indole from coal tar by high pressure crystallization

Fuel ◽  
1991 ◽  
Vol 70 (4) ◽  
pp. 565-566 ◽  
Author(s):  
Yoshitaka Yamamoto ◽  
Yoshiki Sato ◽  
Takeo Ebina ◽  
Chiaki Yokoyama ◽  
Sinji Takahasi ◽  
...  
Keyword(s):  
High Pressure ◽  
High Purity ◽  
Coal Tar ◽  
Pressure Crystallization

Synthesis of Nanocrystalline Powders for Oxide Ceramics by Microwave Plasma Pyrolysis

1992 ◽  
Vol 269 ◽  
Author(s):  
Dieter Vollath ◽  
Ravi Varma ◽  
Kurt E. Sickafus
Keyword(s):  
Microwave Plasma ◽  
Nanocrystalline Powders ◽  
Oxide Ceramics ◽  
Ceramic Powders ◽  
Proper Selection ◽  
Experimental Conditions ◽  
Grain Sizes ◽  
Plasma Pyrolysis ◽  
Cubic Structure ◽  
Selection Of

ABSTRACTPyrolytically prepared ceramic powders usually exhibit excellent homogeneity and small grain sizes. The energy efficiency of those methods for synthesis is, particularly in systems heated electrically, very poor. The situation can be improved drastically using a microwave plasma as a source of energy. This has been confirmed by the synthesis of alumina- and zirconia-based ceramic powders for which an efficiency of more than 80% was found. Aqueous solutions of nitrates of zirconium, yttrium, and aluminum were used as starting materials. Electron microscopy revealed that, through proper selection of the experimental conditions, it is possible to obtain nanocrystalline powders with cubic structure. Because of the extreme conditions during synthesis, it is possible to prepare solid solutions in systems without solubility.

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