نتایج جستجو برای: mgo c refractories

تعداد نتایج: 1063106  

A. M. Hadian, B. Nazari,

  ABSTRACT Dolomite refractories have a good production potential in Iran due to the existence of high-quality dolomite ore in many regions of the country, particularly in Isfahan and Hamedan. The basic problem associated with the production and use of this type of refractories is inherent tendency to hydration of calcined dolomite. One of the methods to overcome this problem is to increase the...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1378

در این تحقیق واکنش هیدروژن زدایی اکسایشی اتان در حالت پایدار بر روی کاتالیزورهای li/mgo و li/ce/mgo مورد بررسی قرار گرفت . کاتالیزور li/mgo با 5 درصد وزنی لیتیم و کاتالیزور li/ce/mgo با یک درصد وزن لیتیم و 54/7 درصد وزنی اکسید سدیم تهیه گردیدند. آزمایشات حالت پایدار نشان دادند که کاتالیزورهای li/mgo و li/ce/mgo در هیدروژن زدایی اکسایشی اتان رفتار کاملا مشابه ای دارند و اضافه کردن ceo2 بهکاتالیز...

Journal: :Uluslararası Muhendislik Arastirma ve Gelistirme Dergisi 2020

2017
R. Khanna V. Sahajwalla

Refractories, materials that can withstand high temperatures, play an important role in the iron and steel sector which alone accounts for ~70% of total refractories pro‐ duced. In this chapter, detailed wettability and interfacial phenomena investiga‐ tions on alumina-carbon and zirconia-carbon refractories at steelmaking temperatures. The wettability between refractory substrates and molten i...

Journal: :international journal of iron & steel society of iran 2011
s. biglar a. nemati h. sarpoolaky a. r. souri

increasing demands for cement, iron and steel industries for refractories with suitable workability in severeconditions (without any environmental risks), make the refractories’ researches to be an active area. refractories containing spinel has been developed with addition of chromia as a substitute in refractories using magnesite - chromite. in this research, different amounts of cr2o3 were a...

2017
V. Oliveira N. Brett

The Mg0-Mn203-Mn0 system in air exhibits two series of solid solutions, (Mg,Mn)Mn204 and (Mg,Mn)O, the boundaries of which have been located. At 1600 +5' C a tie-triangle exists in which these two solid solution phases and a liquid phase coexist with the gas phase. The Mn3+/Mn2+ ratio of the crystalline phases is lowered by the addition of CaSi03 and this has the effect of stabilising the (Mg,M...

2017
Ji Hoon Jang Eun-Ae Kim Hye-Jin Park Eon-Gi Sung In-Hwan Song Joo-Young Kim Chang-Hoon Woo Kyung-Oh Doh Kook Hyun Kim Tae-Jin Lee

Methylglyoxal (MGO) is a reactive dicarbonyl metabolite of glucose, and its plasma levels are elevated in patients with diabetes. Studies have shown that MGO combines with the amino and sulphhydryl groups of proteins to form stable advanced glycation end products (AGEs), which are associated with vascular endothelial cell (EC) injury and may contribute to the progression of atherosclerosis. In ...

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