On heating the corresponding sulphides are precipitated.

It is used to leach metal values from metal chalogenide minerals, including metal sulfides and methal sulfide-like minerals, as found in certain rock matrices, such as ores, mineral concentrates, and mine waste materials.

In certain embodiments, the composition catalyzes sulfides.

The contaminants scavenged or otherwise removed may include, but are not necessarily limited to, H2S, mercaptans, sulfides, and combinations thereof.

Fuel materials may include metals, metal sulfides, or other non-metallic materials.

The hydrodesulfurization step is operative to remove easily-hydrogenated sulfur species, such as sulfides, disulfides and mercaptans.

The above preparations and method are effective in deodorizing intestinal fermentation sulfides and are highly safe and convenient.

The reactive sulfides remaining in the material are permanently encapsulated in the monolithic mass.

Polymetallic sulphides (sometimes called sea floor massive sulphides or SMS) are rich in copper, iron, zinc, silver and gold.

Destruction of harmful inorganic components, such as sulfides.

5) Carbonates, phosphates, sulfides, oxides, and hydroxides are insoluble.

This was the discovery of hydrothermal polymetallic sulphides.

A composition adapted to convert hydrogen sulfide and organic sulfides to nontoxic polymers.

The first portion (16) is partially biodigested by a sulfide-digesting microorganism in a biooxidation reactor (20) where the microorganism is acclimated to the sulfide 'diet' provided by the ore.

The overbased metal phenate sulfides are suitable as lubricant and functional fluid additives.