Methods and systems are provided for sulfur disposal through preparation of a micro-sized sulfur slurries. Micro-sized sulfur slurries are created for downhole disposal by forming sulfur particulates, which are then combined with a carrier fluid. The micro-sized sulfur slurries may be introduced to a subterranean formation, in some cases, to an unconsolidated sand formation by way of a dilation mechanism. Some embodiments comprise forming micro-sized sulfur slurries through a conversion process that converts molten sulfur to powder sulfur by gas cooling of atomized sprays of molten sulfur. Advantages of the embodiments disclosed herein as compared to many conventional methods include higher efficiencies, lower cost, and enhanced disposal of sulfur material. Furthermore, forming a micro-sized sulfur slurry allows for a more convenient form of transport. Additionally, high sulfur loading rates may be achieved, ultimately allowing for more economical sulfur transport.