SOLID PHASE EXTRACTION COLUMNS WITH

Brand	Owner	Address	Description
PHARMA-SIL	UCT, INC.	2731 Bartram Road Bristol PA 19007	SOLID PHASE EXTRACTION COLUMNS WITH SLICA GEL OR BONDED SILICA GEL SORBENTS FOR USE IN TESTING FOR THE PRESENCE OR ABSENCE OF DRUG OR PHARMACEUTICAL SUBSTANCES IN HUMANS OR ANIMALS;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

Processes for removing oil from a solid wellbore material such as drill cuttings or water such as produced by a subterranean formation include contacting the solid material/water with an amino-substituted polymer such as chitosan and a halogenating agent. The oil separates from the solid material and becomes bound within a flocculated solid. The flocculated solid containing the oil subsequently may be combined with a solvent of the amino-substituted polymer. Further, the flocculated solid may be contacted with a reducing agent, converting the flocculated solid back into the amino-substitute polymer and forming an oil-phase separate from the solvent-phase. The oil-phase may then be separated from the solvent phase and recovered. The solvent in which the amino-substituted polymer is dissolved may be recycled for treating more solid material removed from the well bore.