The presence of sulfur affects the clean utilization of coking coal. Inorganic sulfur in coal,
which exists mainly in the form of pyrite, inherently pollutes clean coal during flotation, while …

In this study, desulfurization and deashing of Hazro coal via a flotation method were studied.
For this purpose, experimental studies were conducted on the coal sample with ash, sulfur …

Mezino coal contains a high percentage of ash and both organic and inorganic sulfur. The
ash and sulfur contents can be reduced using physical–chemical and chemical …

Coals are heterogeneous, complex and noncrystalline macromolecules containing both
organic and inorganic materials. Inorganic materials of coal contain a number of inorganic …

To achieve the utilization of high sulfur coals efficiently and economically, the effects of
different pre-desulfurization processes including flotation, acid washing, ultrasonication and …

The utilization of high-sulfur coal is becoming more urgent due to the excessive utilization of
low-sulfur, high-quality coal resources, and sulfur removal from high-sulfur coal is the most …

Large quantities of fine coal have been produced during mining and processing activities of
coals. Use of these fine coals after cleaning is important in terms of recovering of …

Inorganic materials of coal contain a number of inorganic constituents, especially sulfur,
which plays an important role in almost all coal utilization systems. Some methods have …

Coal desulfurization prior to combustion, coking or gasification is beneficial for both the
upgrading of quality of commercial coal and the protection of the environment. The sulfur in …

The clean conversion of high-sulfur coal has become one of the top priorities of today's
social energy pollution situation and economic development. In this paper, guided by the …