نتایج جستجو برای: liquid ammonia

تعداد نتایج: 244064  

2015
Sanjeev K. Bhardwaj Neha Bhardwaj Manil Kukkar Amit L. Sharma Ki-Hyun Kim Akash Deep

High-purity In₂O₃ nanoparticles were recovered from scrap indium tin oxide substrates in a stepwise process involving acidic leaching, liquid-liquid extraction with a phosphine oxide extractant, and combustion of the organic phase. The morphological and structural parameters of the recovered nanoparticles were investigated to support the formation of the desired products. These In₂O₃ nanopartic...

Journal: :Bioresource technology 2007
Matias B Vanotti Ariel A Szogi Patrick G Hunt Patricia D Millner Frank J Humenik

A full-scale treatment system for swine manure was developed to eliminate discharge to surface and ground waters and contamination of soil and groundwater by nutrients and heavy metals, along with related release of ammonia, odor, and pathogens. The system greatly increased the efficiency of liquid-solid separation by polymer injection to increase solids flocculation. Nitrogen management to red...

Journal: :The Journal of chemical physics 2013
Dafang Li Ping Zhang Jun Yan

We investigate via quantum molecular-dynamics simulations the thermophysical properties of shocked liquid ammonia up to the pressure 1.3 TPa and temperature 120,000 K. The principal Hugoniot is predicted from the wide-range equation of state, which agrees well with the available experimental measurements up to 64 GPa. Our systematic study of the structural properties demonstrates that the liqui...

Journal: :Dalton transactions 2017
Muhammad Saleh Thomas S Hofer

The structural and dynamical properties of Pd2+ in liquid ammonia have been investigated via quantum mechanical charge field molecular dynamics. Similar to the case of aqueous Pd2+, a six-fold coordination polyhedron in the form of a tetrahedrally elongated octahedron is observed with two ligands in axial positions forming an extended first shell. To highlight the difference in solvation betwee...

2006
Hiroyuki Koizumi Yoko Kawazoe Kimiya Komurasaki Yoshihiro Arakawa

Sodium chloride or ammonia was dissolved in the water propellant of pulsed plasma thrusters to improve the performance. Pulsed plasma thrusters using liquid propellant utilize water as attractive alternative instead of Teflon. Water propellant enables the controlling propellant mass flow and leads high specific impulse. However, liquid propellant pulsed plasma thrusters have larger plasma resis...

2003
A. Daniel Boese Amalendu Chandra Jan M. L. Martin Dominik Marx

The ammonia dimer (NH3)2 has been investigated using high–level ab initio quantum chemistry methods and density functional theory (DFT). The structure and energetics of important isomers is obtained to unprecedented accuracy without resorting to experiment. The global minimum of eclipsed Cs symmetry is characterized by a significantly bent hydrogen bond which deviates from linearity by as much ...

2004
Huawei Sun Harold M. Keener Wei Deng Frederick C. Michel

Swine confinement buildings typically store manure in deep pits or use flush systems that generate liquid manure. This liquid is of great concern to hog producers because of its’ potential environmental impacts, odors and effects on human and animal health. An alternative system, the High-Rise Hog Building (HRHB) attempts to address these issues by drying and partially composting hog manure in ...

Introduction: The most important goal of modeling is to acquire knowledge about the real system's behavior. Toxic leakage in process and chemical industries is likely to be one of the main causes of working people and residents around these industries. Method: In this study, the ammonia liquid release from storage reservoir in one of the southern refineries was investigated and analyzed usin...

Journal: :Dalton transactions 2015
Patrick Woidy Michael Bühl Florian Kraus

Pentaammine dioxido uranium(VI) dibromide ammonia (1/1), [UO2(NH3)5]Br2·NH3, was synthesized in the form of yellow crystals by the reaction of uranyl bromide, UO2Br2, with dry liquid ammonia. The compound crystallizes orthorhombic in space group Cmcm and is isotypic to [UO2(NH3)5]Cl2·NH3 with a = 13.2499(2), b = 10.5536(1), c = 8.9126(1) Å, V = 1246.29(3) Å(3) and Z = 4 at 123 K. The UO2(2+) ca...

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