Lime-Mediated Sewage Sludge and Gas Ash use as Metallurgy Sintering Ingredients

2013 ◽  
Vol 779-780 ◽  
pp. 1623-1628
Author(s):  
Chen Hong ◽  
Yi Xing ◽  
Yan Xiao Si ◽  
Zhi Qiang Wang ◽  
Guang Wei Yu ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Weight Loss ◽  
Differential Thermal Analysis ◽  
Sewage Sludge ◽  
Integration Method ◽  
Reaction Sintering ◽  
Analysis Method ◽  
Pyrolysis Process ◽  
Indoor Temperature ◽  
Air Atmosphere

The thermogravimetry - differential thermal analysis (TG-DTA) and theoretical analysis method of Coats-Redfern were employed to study the pyrolysis process and kinetics characteristics of mixture containing lime-mediated sewage sludge and gas ash, then sintering cup test the different proportion of mixture ball. It was found that the pyrolysis process of mixture from indoor temperature 1200°Ccould divided into 4 the weight loss stages, which brings a large number of heat and CaO, Fe2O3. Base on the results of Coats-Redfem integration method, the pyrolysis process of mixture under air atmosphere was belongs to two-class reaction. Sintering cup test show that lime-mediated sewage sludge and gas ash replacing part of the sintering ingredients is feasible.

scholarly journals RESEARCH OF STABLE TETRAHEDRON OF LiF-LiVO3-NaBr-NaVO3 QUATERNARY MUTUAL SYSTEM OF Li,Na||F,Br,VO3

2018 ◽  
Vol 59 (4) ◽  
pp. 47
Author(s):  
Ivan K. Garkushin ◽  
Inna N Samsonova ◽  
Tatiana V. Gubanova
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Phase Equilibria ◽  
Quaternary System ◽  
Eutectic Point ◽  
Analysis Method ◽  
Thermal Analysis Method ◽  
Mutual System

Phase equilibria of quaternary system LiF-LiVO3-NaBr-NaVO3 were studied with differential thermal analysis method. The temperature and composition of eutectic point was determined: Е 458 ºС: 11.2% LiF, 57.2% LiVO3, 16% NaBr, 15.6% LiVO3.

scholarly journals PROPOSAL OF DIFFERENTIAL THERMAL ANALYSIS METHOD FOR LITTORAL SEDIMENTS

2017 ◽  
Vol 73 (2) ◽  
pp. I_1201-I_1206
Author(s):  
Hiroki TAKATA ◽  
Yuki MORIMOTO ◽  
Narong TOUCH ◽  
Shinya NAKASHITA ◽  
Tadashi HIBINO
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Analysis Method ◽  
Thermal Analysis Method ◽  
Littoral Sediments

Synthesis, Crystal Structures and Properties of the Polychalcogenides Manganese-tris(1,2-ethanediamine)-triselenide [Mn(en)3]Se3 and Manganese-tris(1,2-ethanediamine)-monotellurodiselenide [Mn(en)3 ]TeSe2

2000 ◽  
Vol 55 (9) ◽  
pp. 871-876 ◽  
Author(s):  
Frank Wendland ◽  
Christian Näther ◽  
Wolfgang Bensch
Keyword(s):  
Thermal Analysis ◽  
Weight Loss ◽  
Differential Thermal Analysis ◽  
Crystal Structures ◽  
Elemental Selenium ◽  
Orthorhombic Space Group ◽  
X Ray ◽  
Structures And Properties ◽  
Two Samples ◽  
Solvothermal Conditions

The reaction of manganese(II)-chloride-tetrahydrate, caesium triselenide and elemental selenium or tellurium in 1,2-ethanediamine (en) under solvothermal conditions leads to the formation of two new isostructural compounds [Mn(en)3]Se3 (1) and [Mn(en)3]TeSe2 (2). The compounds crystallize in the orthorhombic space group Pbcn with the lattice parameters a = 1149.39(9), b = 1506.83(11), c = 935.96(6) pm for 1 and a = 1184.1(2), b = 1495.3(2), c = 949.8(1) pm for 2. Their crystal structures are built up of [Mn(en)3]2+ cations and Se32- or TeSe22- anions, respectively. Each cation is surrounded by six next neighbouring anions, and vice versa. Between the cations and the anions hydrogen bonding is observed. The thermal behaviour was investigated using differential thermal analysis, thermogravimetry as well as X-ray powder diffraction. Completely different properties were found. Compound 1 decomposes in two distinct endothermic steps, while compound 2 shows only one endothermic peak. The weight loss for 1 corresponds roughly to the emission of all en molecules, whereas the weight loss for 2 is significantly lower. The final products are composed of MnSe2 and elemental Se or Te, respectively, and an unknown crystalline phase which is different for the two samples

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