scholarly journals The Influence of the Chemical Composition of Selected Waste Materials from the Production of Copper on the Final Environmental Assessment

2016 ◽  
Vol 61 (4) ◽  
pp. 2135-2140 ◽  
Author(s):  
A.W. Bydałek ◽  
S. Biernat ◽  
P. Schlafka ◽  
M. Holtzer ◽  
W. Wołczyński ◽  
...  

AbstractThis article presents qualitative and quantitative analysis of the waste produced by KGHM Polska Miedź. The waste has been analyzed according to its chemical composition and balanced in order to be reused and recycled. Special attention has been paid to mining industries producing the biggest amount of waste and ore enrichment businesses generating waste, which isn’t reused nowadays. Laboratory reseach has been conducted on floatation waste, different kinds of slags, waste gases and water slag extracts. Attention has been drawn to the possibility of using a computer program SLAG - PROP for analyzing physicochemical features, technological features and the refining of the acquired waste. Consequently, the further way of utilization of waste has been shown. From this point of view, analyses of DTA and TG slags in an oxide coating seem especially interesting. Having a particular composition they can be successfully utillised in the refining processes of copper pyrometallyrgy.

2020 ◽  
Vol 11 ◽  
pp. 159-177
Author(s):  
Solveiga Sušinskienė ◽  
◽  
Jolanta Vaskelienė

Although the Lithuanian and English languages are bound within the family of IndoEuropean languages, the typological differences between the two languages lie in the system of inflectional and derivational morphology. The paper analyses the concept of nominalization and discusses the deverbal process and result nominalizations in Lithuanian and English. For the comparative qualitative and quantitative analysis, 965 equivalents of deverbal nouns have been selected from the “Parallel Corpus”. Out of them, 802 examples belong to the category of deverbal process nouns, whilst the category of deverbal result nouns includes 163 examples. From the point of view of morphology, in both languages nominalization is a word-formation process by which a noun is derived from a verb, adjective or another noun, or even other parts of speech, usually through suffixation and by adding the ending in the Lithuanian language. Two types of nominalization can be found across languages: lexical and syntactic. Lexical nominalization refers to the formation of deverbal nouns or nominal words derived from the verb or a nominal word, and syntactic nominalization refers to turning a clause into a noun phrase. In summary, the investigation of the derivational affixes of deverbal nouns in Lithuanian and their equivalents in English has revealed the following differences: in Lithuanian, the deverbal nominalizations – deverbal process nouns and deverbal result nouns – can be formed with 132 suffixes and 5 endings, whilst in English – with 10 suffixes and by employing the derivational strategy of conversion. Also, the analysis of the empirical material revealed that the suffix -imas/-ymas in Lithuanian prevails in forming deverbal process nouns (they make 73 per cent of all deverbal process nouns), while the suffix -inys is the most prolific in forming deverbal result nouns (they make 38 per cent of all deverbal result nouns). The English equivalents usually have the suffix -ion/-tion/-sion/-ation, quite many derivatives have the suffix -ing. It should be noted that deverbal nominalizations in the Lithuanian language often correlate with abstract and concrete nouns (non-derivatives) in the English language: 23 per cent of all derivatives in Lithuanian have more than one equivalent (derivative or non-derivative) in English.


1938 ◽  
Vol 11 (4) ◽  
pp. 728-739
Author(s):  
J. G. Robinson

Abstract From the viewpoint of the works chemist, a knowledge of the qualitative and quantitative analysis of organic accelerators is desirable as a valuable supplement to a knowledge of their technical applications. Confusion or uncertainty as to the composition of a particular package of material may occur even in the best regulated factories; this may well prove to be an organic accelerator, and the chemist is expected to be able to give a decision in all such cases. Again, many accelerators are still sold under trade names and a knowledge of their chemical composition enables the chemist to use them in a more intelligent way, especially in predicting their vulcanizing characteristics in conjunction with other accelerators, and also in disposing of off-grade compounds by incorporation of a percentage in standard mixings. Although the uniformity of qualtity reached by present-day suppliers of accelerators is of a high order, most works chemists wish as a matter of principle to institute some form of acceptance control. Tests in rubber are obviously desirable, but they take considerable time and require expensive plant; analytical methods, where available, enable some form of control to be exercised in cases where tests in rubber are impracticable owing to shortage of time or other considerations.


2021 ◽  
Vol 9 (09) ◽  
pp. 706-712
Author(s):  
Moursalou Koriko ◽  
◽  
Dodji Zounon ◽  
Agbegnigan Degbe ◽  
Sanonka Tchegueni ◽  
...  

In order to contribute to the enhancement of local materials, Aklakou clays taken from the quarry and used for pottery have been characterized from a physicochemical and mineralogical point of view. Thus, the samples taken from the quarry were subjected to chemical and mineralogical analyzes. Several qualitative and quantitative analysis techniques were used (chemical analysis, thermal analysis, X-ray diffraction and analysis by I.R. spectroscopy). These results demonstrated the richness of this quartz clay, resulting in a high proportion of silica (77.62%). This study was therefore essential before any application of this type of clay in the formulation of aggregates and pottery products or even ceramics in the broad sense. We can therefore conclude that the clays mined at the Aklakou quarry are very favorable materials for formulations of pottery products and in other fields such as the formulation of light aggregates.


2019 ◽  
Vol 822 ◽  
pp. 37-43 ◽  
Author(s):  
Eduard Yl'evich Kolpishon ◽  
Ludmila Vladimirovna Razumova ◽  
Sergey Vladimirovich Ryaboshuk

The paper presents the results of a study of the lanthanum hexaboride nanosized powder modification effect on the cast structure of martensitic and austenitic steels deoxidized with aluminum and silicon. The study was conducted on high-chromium steels of austenitic and martensitic classes, and nanosized lanthanum hexaboride powder was used as a modifier. Studies of the chemical composition of the obtained samples, qualitative and quantitative analysis of non-metallic inclusions, the structure of the steel and thermodynamic modeling were carried out.


INFO ARTHA ◽  
2017 ◽  
Vol 2 ◽  
pp. 56-79
Author(s):  
NFN Khusnaini ◽  
Agung Widi Hatmoko

Attitudes towards tax compliance (willingness to comply) Indonesian society is still low. Required an innovative tax dissemination to increase it. The purpose of this study was to determine whether the tax dissemination based on Fogg Behavioral Model (FBM) approach may increase wiliingness to comply. The FBM based tax dissemination asserts that for a person to perform a target behavior, which is a willingness to comply, he or she must be sufficiently motivated, have the ability to perform the behavior, and be trigerred, to perform the behavior. This research is a combination of qualitative and quantitative analysis of statistical data results of the questionnaire, interviews, and observations of the respondent and the experimental process of dissemination. The method used in this study is a quasi experimental with patterns of nonequivalent control group (pretest-post which is not equivalent). Based on the results of data analysis, interviews and observations of the respondent and the experiment, this research showed that theFBMbasedtaxdissemination hasapositiveimpactto willingnesstocomplyofthetaxpayers. 


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