REACTIONS OF STRONGLY ELECTROPOSITIVE METALS WITH ORGANIC SUBSTANCES IN LIQUID AMMONIA SOLUTION. VI. A. THE REDUCTION OF BENZOPHENONE. B. THE HYDROLYSIS OF METAL KETYLS1

1928 ◽  
Vol 50 (5) ◽  
pp. 1388-1394 ◽  
Author(s):  
Charles Bushnell Wooster
2013 ◽  
Vol 781-784 ◽  
pp. 2087-2090 ◽  
Author(s):  
Ludmila A. Zemnukhova ◽  
O.D. Arefieva ◽  
Anastasia A. Kovshun

This article shows the results of research on finding ways to purify waste water produced by alkaline hydrolysis of rice waste - rice husk. Two methods were used: baromembrane filtration and electrochemical oxidation of organic substances. It was found that in the results of baromembrane processing of hydrolyzate on the membranes mainly stay silicon compounds partially sorbing organic substances contained in the feedstock. Through the membranes there pass the major part of microbiologically oxidated organic matter, so its difficult to reach the required waste water treatment stage. The use of electrochemical oxidation of organic substances extracted by alkaline hydrolysis of rice husks into a solution allows more qualitatively treat the solution. A range of indicators (chemical oxygen demand, permanganate demand, polyphenols) evaluating the content of organic compounds in the desilicated solution showed that in order to remove them effectively enough electrolyte concentration of sodium chloride is 4 g L-1, formed by the desilication and dilution of the solution with the distilled water 1:10.


2021 ◽  
Vol 15 (2) ◽  
pp. 179-183
Author(s):  
Huaxing Meng ◽  
Zhiwu Chen ◽  
Zhenya Lu ◽  
Xin Wang ◽  
Xiaoyi Fu

Monodispersed tetragonal barium titanate (BaTiO3) nanopowders were synthesized by a convenient hydrothermal route at a low temperature of 200?C in only 24 h. The key point of this method is to promote the generation of ultrafine titanium hydroxide precipitation precursors with the help of absolute ethyl alcohol and ammonia solution during the hydrolysis of Ti(OC4H9)4. The results of X-ray diffraction and Raman spectra show that the as-prepared BaTiO3 nanopowders possess tetragonal-dominant structure. The synthesized tetragonal BaTiO3 nanopowders exhibit relatively uniform size and good dispersity, with the average particle size of 96.1 nm and a tetragonality of 1.0073, which enable broad application prospects in the field of multilayer ceramic capacitors.


1965 ◽  
Vol 4 (7) ◽  
pp. 1002-1006 ◽  
Author(s):  
E. C. Fohn ◽  
R. E. Cuthrell ◽  
J. J. Lagowski

2016 ◽  
Vol 163 (14) ◽  
pp. D829-D835 ◽  
Author(s):  
Lian-Kui Wu ◽  
Wei-Ke Wang ◽  
Hua-Zhen Cao ◽  
Guang-Ya Hou ◽  
Yi-Ping Tang ◽  
...  

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