Processes for reducing environmental availability of environmental pollutants
AssigneeAlbemarle Corporation
InventorsKim Sehye PINGREE, Zhongxin GE, Zhaorong ZHANG
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Abstract
This invention provides processes for reducing the environmental availability of one or more environmental pollutants in solids, liquids, and combinations of solids and liquids.
Claims35
A process for reducing environmental availability of at least a portion of one or more environmental pollutants in a substance comprising one or more environmental pollutants, which process comprises
- adding and/or applying a sorbent comprising
- one or more N-halogen compounds containing one or more nitrogen atoms having one or more halogen atoms bound thereto, wherein at least one halogen atom bound to a nitrogen atom forms a hypohalite ion when contacted with water, wherein the halogen atoms are selected from chlorine, bromine, and/or iodine, and wherein the N-halogen compound does not contain alkenyl or alkynyl bonds, and
- one or more substrate materials,
- thereby reducing environmental availability of at least a portion of one or more environmental pollutants in the substance.
A sorbent comprising one or more N-halogen compounds and one or more substrate materials, wherein the N-halogen compound contains one or more nitrogen atoms having one or more halogen atoms bound thereto, wherein at least one halogen atom bound to a nitrogen atom forms a hypohalite ion when contacted with water, wherein the halogen atoms are selected from chlorine, bromine, and/or iodine, and wherein the N-halogen compound does not contain alkenyl or alkynyl bonds.
A process for forming a sorbent, which process comprises combining one or more N-halogen compounds and one or more substrate materials, wherein the N-halogen compound contains one or more nitrogen atoms having one or more halogen atoms bound thereto, wherein at least one halogen atom bound to a nitrogen atom forms a hypohalite ion when contacted with water, wherein the halogen atoms are selected from chlorine, bromine, and/or iodine, and wherein the N-halogen compound does not contain alkenyl or alkynyl bonds, to form the sorbent.
A sorbent comprising one or more halogen-containing hydantoins and one or more substrate materials, wherein the halogen-containing hydantoin comprises one or more halogen atom bound to one or more nitrogen atoms, wherein the halogen atoms are selected from chlorine, bromine, and/or iodine.
Dependencies are inferred from the claim text.