ISSN:
1573-8310
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Conclusions 1. The oxidation of the TS-1 and T-1 fuels (rid of trace impurities) without contact with metals forms a solid phase consisting of amorphous substances. The oxidation of the same fuels in contact with metals results in the appearance of precipitates and deposits in them which consist of amorphous and crystalline components. 2. The main crystalline components of the precipitates and deposits which are formed in the fuels at 140–160°Cin contact with copper, are CuSO4 · 5H2O as well as CuSO4 in lesser amounts; $$\left( {RSO_3 } \right)_2 CU,\left( {RC\begin{array}{*{20}c} {/_/ } \\ \backslash \\ \end{array} \begin{array}{*{20}c} O \\ {} \\ {O - } \\ \end{array} } \right)_2 Cu ;$$ CuCO3 · nCu(OH)2, and the oxides and Sulfides of copper in much smaller amounts. 3. The maximum amount of the sulfates is formed at 160°C and it decreases sharply with an increase in temperature. The concentration of the copper sulfides in the precipitates from TS-1 increases greatly with an increase in temperature and, at temperatures above 170°C, the copper sulfides are the main crystalline components in the precipitates and deposits. 4. There is an amorphous, tarry part in the composition of the precipitates which is formed as the result of the deep oxidation, polymerization, and condensation of the products from the oxidation of the organic compounds. The following functional groups were observed in the composition of the precipitates: SO3H, SO2H, $$SO_3 H, SO_2 H, - O - \begin{array}{*{20}c} O \\ \parallel \\ S \\ \parallel \\ O \\ \end{array} - O - , SOH, CO, OH - C\begin{array}{*{20}c} {/_/ } \\ \backslash \\ \end{array} \begin{array}{*{20}c} O \\ {} \\ {O - } \\ \end{array} .$$
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00719423
Permalink
