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Pig iron nugget process.

Anameric, Basak.

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Pig iron nugget process.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Pig iron nugget process./
作者:	Anameric, Basak.
面頁冊數:	547 p.
附註:	Adviser: Komar S. Kawatra.
Contained By:	Dissertation Abstracts International68-03B.
標題:	Engineering, Metallurgy. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3256833

Pig iron nugget process.
Anameric, Basak.

Pig iron nugget process. - 547 p.

Adviser: Komar S. Kawatra.

Thesis (Ph.D.)--Michigan Technological University, 2007.

Pig iron nugget process developed by Kobe Steel is an environmentally friendlier, single step, cokeless pig iron making process. Throughout the process self reducing---fluxing dried greenballs which contain iron oxide source, reducing---carburizing agent, flux and binder are transformed into pig iron nuggets. Since it is a new process there are still unknowns about the process. Thus, the objectives of this research were to:Subjects--Topical Terms:

1023648
Engineering, Metallurgy.

Pig iron nugget process.
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100 1 $a Anameric, Basak. $3 1286050
245 1 0 $a Pig iron nugget process.
300 $a 547 p.
500 $a Adviser: Komar S. Kawatra.
500 $a Source: Dissertation Abstracts International, Volume: 68-03, Section: B, page: 1900.
502 $a Thesis (Ph.D.)--Michigan Technological University, 2007.
520 $a Pig iron nugget process developed by Kobe Steel is an environmentally friendlier, single step, cokeless pig iron making process. Throughout the process self reducing---fluxing dried greenballs which contain iron oxide source, reducing---carburizing agent, flux and binder are transformed into pig iron nuggets. Since it is a new process there are still unknowns about the process. Thus, the objectives of this research were to:
520 $a (1) Investigate the status of the iron industry, importance of the direct reduction and smelting processes, and technical soundness of the pig iron nugget process. (2) Produce pig iron nuggets and develop analysis techniques for determination of their physical and chemical properties. (3) Investigate the furnace temperature and residence time effects on the pig iron nugget production and threshold furnace temperatures and residence times on the pig iron nugget production. (4) Determination of the transformation behavior of the self reducing---fluxing dried greenballs into pig iron nuggets. (5) Generating a paradigm for the reduction of iron oxides inherent to the dried greenball mixture during and after pig iron nugget formation. (6) Improvement of the slag separation properties by manipulating the flux additions to the dried greenball mixture.
520 $a The experiments involved heat treatment of self reducing---fluxing dried greenballs which contained various amounts of flux with varying greenball diameters by one of the following laboratory scale resistance box furnace, gas fired muffle furnace or simultaneous differential scanning calorimetry, and thermal garvimetry analyzer at various furnace temperatures and residence times. The products were characterized utilizing optical microscopy, scanning electron microscopy, energy dispersive spectroscopy, X-ray diffraction, X-ray florescence, point counting, apparent density and microhardness measurements and wet chemical analysis techniques. It has been determined that production of pig iron nugget which have similar chemical and physical properties with the blast furnace pig iron was feasible. The formation of these pig iron nuggets took place by a three stage mechanism. The first stage was the transformation of self reducing---fluxing dried greenball into direct reduced iron DRI), second stage was the transformation of DRI into transition direct reduced iron (TDRI), and third stage was the transformation of TDRI into pig iron nuggets. It was determined that these transformation reactions were controlled by the furnace temperatures and residence times. Thus, the chemical events which control these transformations were determined and a paradigm was created.
590 $a School code: 0129.
650 4 $a Engineering, Metallurgy. $3 1023648
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710 2 $a Michigan Technological University. $3 1032921
773 0 $t Dissertation Abstracts International $g 68-03B.
790 $a 0129
790 1 0 $a Kawatra, Komar S., $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3256833