Definition

1. Noun:
   • Bituminous coal / Soft coal: A type of coal that is relatively soft, contains a high proportion of bitumen (a tar-like substance), and burns with a smoky, yellow flame. It is an intermediate grade between lignite and anthracite.

Usage Examples

• Noun:
  • Than mỡ được sử dụng nhiều trong sản xuất điện. (Bituminous coal is widely used in power generation.)
  • Loại than này là than mỡ, cháy có nhiều khói. (This type of coal is soft coal, which burns with a lot of smoke.)

Advanced Usage

• In industrial contexts, "than mỡ" is valued for its coking properties in steel production.
  • Nhà máy luyện thép nhập khẩu than mỡ để luyện coke. (The steel plant imports bituminous coal to make coke.)

Variants and Related Words

• Than đá (n): Coal (general term).
• Than antraxit (n): Anthracite (a harder, cleaner-burning coal).
• Than bùn (n): Peat.
• Than non (n): Lignite (brown coal).

Synonyms

• Soft coal
• Bituminous coal
• Black coal (in common parlance)

Related Terms

• Coking coal: A specific high-quality type of bituminous coal suitable for coke production.
• Thermal coal / Steam coal: Bituminous coal primarily used for heat and power generation.