Autor: Bounouala, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A preliminary study on enrichment of Anini iron ore for use by Algerian metallurgical industry
Autorzy:: Chaabia, R.
Bounouala, M.
Boukelloul, M. L.
Powiązania:: https://bibliotekanauki.pl/articles/88999.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:: enrichment
iron ore
desliming
basicity index
metallurgy
Opis:: The Anini iron ore contains mainly ferriferous hematite rocks with inclusions of quartz and clay. The chemical analysis showed that the average content of iron is 55% while SiO2 and Al2O3 is 26.20% and 12%, respectively. The XRD mineralogical analysis confirmed that the prevailing mineral phase are hematite, quartz, clay and some inclusions of calcite in this matrix. According to the tests, preliminary desliming by washing provides iron 62% is the concentrate while SiO2 decreases from 26.20% to 2.30% and Al2O3from 12% to 3%. The calculated partial basicity index Ip= (CaO/SiO2) was 1.07, meaning that the washed-out ore achieves standards to be used in metallurgy. The by-products remaining after washing (quartz, clay and a small content of iron) can be used in cement production.
Źródło:: Mining Science; 2015, 22; 201-213
2300-9586
2353-5423
Pojawia się w:: Mining Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Removal of iron from sandstone by magnetic separation and leaching: case of El-Aouana deposit (Algeria)
Autorzy:: Bouabdallah, S.
Bounouala, M.
Chaib, A. S.
Powiązania:: https://bibliotekanauki.pl/articles/89037.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:: leaching
magnetic separation
sandstone
mineral processing
Opis:: To improve the quality of raw materials from North East Algeria and their application in the field of flat glass manufacturing, the sandstone of El-Aouana (Jijel) was subjected to a physicochemical characterization. Analysis techniques such as X-ray diffraction, atomic absorption spectrophotometry and a chemical analysis of size fractions by sieving were used. According to this characterization it is noticed that sandstone feedstock contains primarily quartz (SiO2), as well as ferriferous minerals considered as impurities during glass manufacturing. This work concerns the removal of iron oxide from silica sandstone to obtain a material acceptable for flat glass manufacturing. For this, we have studied the silica enrichment process using a magnetic separation. Moreover, a leaching process by using hydrochloric acid has been studied under various experimental conditions; the parameters studied were: hydrochloric concentration, temperature, and time of contact. The results obtained show that the leaching studied presents a better removal of iron oxide after 150 min of treatment at temperature 90°C with a 3 mol/L, a concentrate obtained final of 99.16% SiO2 with a content of 0.01% Fe2O3.
Źródło:: Mining Science; 2015, 22; 33-44
2300-9586
2353-5423
Pojawia się w:: Mining Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: New method of electrostatic separation of the oxidized iron ore
Autorzy:: Idres, A.
Bouhedja, A.
Bounouala, M.
Benselhoub, A.
Powiązania:: https://bibliotekanauki.pl/articles/89112.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:: iron ore
electrostatic separation
reagent-collector
reagent–depressant
efficiency
Opis:: The complexity of the mineralogical, chemical and exogenous parameters generates a low efficiency of electrical separation of oxidized iron ore. For this purpose, a study was conducted to provide a method for electrostatic separation and to select the chemical reagents. And this, for increasing the contrast of the dielectric separating minerals in the corona discharge field. The reagent-collector used is the auramine with a specific consumption of 0.3 kg/t. Whereas, the reagent depressants is carboxymethyl cellulose mixture with a specific consumption of 0.25 kg/t. From the obtained test results electrical treatment of oxidized iron ore are satisfied for proposed process.
Źródło:: Mining Science; 2016, 23; 33-41
2300-9586
2353-5423
Pojawia się w:: Mining Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Application of PROMETHEE mathematical model for choosing a secondary breakage process of the oversized blocks in limestone quarries
Autorzy:: Bouhedja, A.
Idres, A.
Boutrid, A.
Bounouala, M.
Benselhoub, A.
Talhi, K.
Powiązania:: https://bibliotekanauki.pl/articles/972324.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:: centroid weight method
Hadjar-Soud quarry
multicriteria analysis
fragmentation
Opis:: In this paper, the approach consists in selecting the best secondary breakage process of oversize blocks with explosives for the limestone quarries. To solve this problem, we propose the centroid weight method for weighting the selection criteria, and the PROMETHEE model as a multicriteria decision making method. A case study is carried out in the limestone quarry of the cement factory of Hadjar-Soud, Algeria.
Źródło:: Mining Science; 2016, 23; 121-135
2300-9586
2353-5423
Pojawia się w:: Mining Science
Dostawca treści:: Biblioteka Nauki

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