Removal of arsenic, vanadium and/or nickel compounds from spent catecholated polymer
Described is a process for removing arsenic, vanadium, and/or nickel from petroliferous derived liquids by contacting said liquid at an elevated temperature with a divinylbenzene-crosslinked polystyrene having catechol ligands anchored thereon. For vanadium and nickel removal an amine, preferably a diamine is included. Also, described is a process for regenerating spent catecholated polystyrene by removal of the arsenic, vanadium, and/or nickel bound to it from contacting petroliferous liquid as described above and involves: treating the spent polymer containing any vanadium and/or nickel with an aqueous acid to achieve an acid pH; and, separating the solids from the liquid; and then treating said spent catecholated polystyrene, at a temperature in the range of about 20 to 100 C with an aqueous solution of at least one carbonate and/or bicarbonate of ammonium, alkali and alkaline earth metals, said solution having a pH between about 8 and 10; and, separating the solids and liquids from each other. Preferably the regeneration treatment of arsenic containing catecholated polymer is in two steps wherein the first step is carried out with an aqueous alcoholic carbonate solution containing lower alkyl alcohol, and, the steps are repeated using a bicarbonate.
- DOE Contract Number:
- AC03-76SF00098
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- US 4659684; A
- Application Number:
- PPN: US 6-842574
- OSTI ID:
- 7013180
- Resource Relation:
- Patent File Date: 21 Mar 1986
- Country of Publication:
- United States
- Language:
- English
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Removal of arsenic, vanadium, and/or nickel compounds from petroliferous liquids
Removal of arsenic, vanadium, and/or nickel compounds from petroliferous liquids
Related Subjects
ARSENIC
REMOVAL
NICKEL
PETROLEUM PRODUCTS
DEMETALLIZATION
VANADIUM
CATECHOLAMINES
POLYSTYRENE
PYROCATECHOL
REGENERATION
AMINES
AROMATICS
DEVELOPERS
ELEMENTS
HYDROXY COMPOUNDS
MATERIALS
METALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PHENOLS
PLASTICS
POLYMERS
POLYOLEFINS
POLYPHENOLS
POLYVINYLS
SEMIMETALS
SEPARATION PROCESSES
SYNTHETIC MATERIALS
TRANSITION ELEMENTS
020500* - Petroleum- Products & By-Products