The present invention relates to cylinder packages utilized in the delivery of highly toxic and/or flammable compounds to semiconductor manufacturers. More specifically, the present invention provides a cartridge adapted to removably attach to the gas outlet of a gas discharge passageway in a cylinder valve provided on a toxic gas containing cylinder package, the cartridge comprising a cylindrically shaped housing having at least one end fitted with a barrier member permeable to the toxic gas contained within the cylinder package and the housing containing a toxic-gas getter material.

A method is described for loading a sorbent material, comprising the step of forming a bed of a particulate copper sulphide sorbent in a reaction vessel in an atmosphere containing oxygen, wherein the particulate copper sulphide sorbent comprises greater than 5% by weight of copper sulphide powder having a D.sub.50 average particle size in the range of 5 to 100 m and having an average CuS crystallite size, as determined by XRD, in the range 25-60 nm.

This invention provides processes for reducing the environmental availability of one or more environmental pollutants in solids, liquids, and combinations of solids and liquids.

The present invention relates to a method of promoting adsorption of one or more gases to solid particulate material, the method comprising ball milling the solid particulate material (i) in the presence of the one or more gases maintained at a pressure of at least 300 kPa, (ii) using a ratio of milling balls to solid particulate material of at least 60:1, and (iii) at an operating speed of at least 200 rpm.

The present invention relates to the technical field of adsorbent materials, and specifically to a transition metal sulfide adsorbent, and methods of making and using. The transition metal sulfide adsorbent uses Mo-MOF as a template, calcines thiourea and Mo-MOF at a mass ratio of 3 to 4:1, and uses a high-temperature template pyrolysis method to prepare the transition metal sulfide adsorbent. The invention uses MOF template high-temperature pyrolysis to create an active center with both adsorption and reduction capabilities at the adsorption material reaction interface. The prepared MOF template-derived transition metal sulfide adsorbent material can achieve efficient selective removal and resource recovery of Ag.sup.+ in water bodies, which is of great significance for ensuring water environmental safety and maintaining the development of a green, low-carbon circular economy of silver resources. This new technology integrates selective adsorption and heavy metal elementalization for wastewater heavy metal low-carbonization treatment.

Adsorbents for removing contaminants from hydrocarbon streams are described. The adsorbents comprise polyurethane foam comprising a metal compound. The polyurethane foam can be rigid or flexible and has a structure comprising a combination of open cells and closed cells. Methods of removing contaminants from hydrocarbon streams using the adsorbent are also described.