Metal Adsorbents Based on Dihydropyridazine and Pyridazine Modified Silica Particles With Colorimetric Indication of Metal Ions.Technology #ua17-125
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Title: Metal Adsorbents Based on Dihydropyridazine and Pyridazine Modified Silica Particles with Colorimetric Indication of Metal Ions
Invention: The invention is a new class of metal ion scavengers that can bind to transition, lanthanide, and actinide metals from water or organic solvents. This new class is 3,6-diaminoalkane, dithiolakane substituted 1,4-dihydropyridazine, or 3,6-dipyri-2-yl-4,5-pyridazine compounds.
Background: Resins are important for removing toxic heavy metals from drinking water due to pharmaceutical manufacturing, semiconductor manufacturing, mine effluent, and electrochemical processing. Current resins are limited in capacity and binding activity.
- Waste removal
- Toxic manufacturing
- Water treatment
- Capable of picking up to 4 mmoles of metal per gram of resin versus current options, which are limited to 2 mmoles of metal per gram
- Flexible preparations such as a coating surface, gel, or a packed bed of resin spherical particles