Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 6

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Content available remote

The influence of iron compounds in the sulfuric acid catalyst on the SO2oxidation process

100%
Grobela M., Grzesiak P.
Polish Journal of Chemical Technology
|
2007
|
vol. 9
|
issue 1
2-6
EN
The catalytic oxidation process of SO2 to SO3 is the main stage of sulfuric (VI) acid production. The process run could be disordered by reason of the increased inactivation of sulfuric acid catalyst during SO2 oxidation process. This paper includes the influence study of the iron quantity and forms, which is introduced into the catalyst active phase, on the reaction rate of the SO2 oxidation process.
2
Content available remote

Remediation of heavy metals from soil using quartz sand functionalized with organic amino silanes

81%
Grzesiak P., Łukaszyk J., Schroeder G., Kurczewska J.
Polish Journal of Chemical Technology
|
2013
|
vol. 15
|
issue 4
116-120
EN
The results of the research studies concerning the binding of heavy metals (HMs) by quartz sand functionalized with amino silanes have been described. The studies have been carried out on soils sampled from the areas affected by emissions from Copper Smelter and Refinery. The research aims to increase the food safety in the areas of industrial impact. The presence of polyamine chain in the hybrid materials obtained enables a binding of heavy metals (nickel, copper, cobalt). The best results are observed for the hybrid material having four amine groups (four coordination centers) per molecule. For this material the highest content after two extraction cycles (pH 7.0 and 5.0) is observed for copper (98.2%), but for other ions (nickel, cobalt) it is at least 85% of the initial amount of components available for plants.
3
Content available remote

The dependance of an activity of vanadium catalysts on a carrier regeneration method and an active phase composition

81%
Grzesiak P., Grobela M., Hłyń T., Łukaszyk J.
Polish Journal of Chemical Technology
|
2013
|
vol. 15
|
issue 4
107-110
EN
The results of the research studies concerning the reaction rate of SO2 oxidation on the vanadium catalysts have been described. A carrier of the active phase - silica has been regenerated from spent vanadium mass by leaching with H2SO4 solution. The dependence of the oxidation reaction rate on the method of treating a catalyst carrier as well as the composition of an active phase of the new catalyst systems has been also presented.
4
Content available remote

Binding of Industrial Deposits of Heavy Metals and Arsenic in the Soil by 3-Aminopropyltrimethoxysilane

81%
Grzesiak P., Łukaszyk J., Schroeder G., Kurczewska J.
Polish Journal of Chemical Technology
|
2014
|
vol. 16
|
issue 2
12-15
EN
The results of the research studies concerning binding of heavy metals and arsenic (HM+As), occurring in soils affected by emissions from Głogów Copper Smelter and Refinery, by silane nanomaterial have been described. The content of heavy metals and arsenic was determined by AAS and the effectiveness of heavy metals and arsenic binding by 3-Aminopropyltrimethoxysilane was examined. The total leaching level of impurities in those fractions was 73.26% Cu, 74.7% – Pb, 79.5% Zn, 65.81% – Cd and 55.55% As. The studies demonstrated that the total binding of heavy metals and arsenic with nanomaterial in all fractions was about as follows: 20.5% Cu, 9.5% Pb, 7.1% Zn, 25.3% Cd and 10.89% As. The results presented how the safety of food can be cultivated around industrial area, as the currently used soil stabilization technique of HM by soil pH does not guarantee their stable blocking in a sorptive complex.
5
Content available remote

The influence of the catalyst worktime on SO2emission quantity from the sulfuric acid system and the catalyst waste material

81%
Grzesiak P., Grobela M., Motała R.
Polish Journal of Chemical Technology
|
2007
|
vol. 9
|
issue 3
134-137
EN
The catalytic process of SO2 to SO3 oxidation is the main step of sulfuric (VI) acid formation. The sustained catalyst operating due to its structural and textural modifications could disturb the process course. This paper includes the influence of the vanadic catalyst worktime on SO2 emission and the expected amount of the obtained waste material of the inactivated catalyst.
6
Content available remote

The influence of the conditions and worktime on the waste vanadic catalyst amount

71%
Grzesiak P., Motała R., Grobela M., Trypuć M., Mazurek K.
Polish Journal of Chemical Technology
|
2007
|
vol. 9
|
issue 3
73-76
EN
This paper includes the research results of the vanadic catalyst study that was operated in PCC Rokita S.A. during a gaseous SO3 formation. The physical properties have been studied: mechanical strength, bulk density and grindability during the five-year cycle of the catalyst worktime. The studies presented underline the prediction of the amount of the formed vanadic waste material.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.