کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
238969 465787 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Utilization of pyrite ash wastes by pelletization process
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Utilization of pyrite ash wastes by pelletization process
چکیده انگلیسی

In Turkey, pyrite, copper melting gases and sulfur are used as a raw material in sulfuric acid production. Pyrite ashes are obtained as a result of the sulfuric acid production process during the roasting of pyrite ores. These wastes are generally landfilled or dumped into the sea.Pyrite ash wastes can be utilized as a raw material in the production of iron ore, and thus environmental pollution can be avoided; however, these wastes need to achieve certain physical and chemical properties before they are used. Pyrite ashes are agglomerated into pellets to allow them acquire the required properties for use as iron ore in a blast furnace.The essential parameters affecting the pelletization of pyrite ashes are studied using bentonite as a binder. The metallurgical properties of pyrite ash, bentonite, a mixture of pyrite ash and bentonite, and sintered pellets are studied using X-ray analyses. Wet-drop, wet-crush, dry-crush and sintered-crush tests are carried out to investigate the strength of the pyrite ash wastes pellets prepared from feeds with different sieve size and bentonite content. The results of this analysis demonstrate that pyrite ashes can be agglomerated into pellets and used as feed for the blast furnace in the iron production industry.

Pyrite ashes can be utilized in iron ore production industry as a raw material and thus environmental pollution can be avoided; however, first these wastes should gain certain physical and chemical properties. Pyrite ashes are agglomerated into pellets to let them acquire the required dimensions and properties in order to be able to use them as iron ore in blast furnace.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Powder Technology - Volume 176, Issues 2–3, 20 July 2007, Pages 72–76
نویسندگان
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