Metal chelating composites, methods of using composites, and methods of making composites

Patent metadata

Field	Value
Publication number	US-9950307-B1
Application number	US-201414462641-A
Country	US
Kind code	B1
Filing date	Aug 19, 2014
Priority date	Aug 29, 2013
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

Embodiments of the present disclosure provide for composites, methods of making composites, methods of removing a metal from a fluid, and the like.

First claim

We claim at least the following:

1. A composite comprising:
a support material having bonded to its surface a plurality of amine-rich macromolecules, wherein the amine-rich macromolecule is selected from the group consisting of: a polyamidoamine (PAMAM) dendrimer, and a polypropylenimine (PPI) dendrimer, and wherein the amine-rich macromolecules are bonded to the surface of the support material through hydrogen bonds, electrostatic interactions, or a combination thereof, wherein the support material is a metal oxide and the metal oxide is selected from the group consisting of: zirconia, titania, ceria, and zinc oxide.

2. The composite of claim 1 , wherein the amine-rich macromolecule is the polyamidoamine (PAMAM) dendrimer, wherein the PAMAM dendrimer has an alkyl-diamine core and tertiary amine branches, wherein the alkyl-diamine core is selected from the group consisting of: ethylenediamine, 1,4-diaminobutane, 1,6-diaminohexane, and 1, 12-diaminododecane.

3. The composite of claim 1 , wherein the amine-rich macromolecule is the polyamidoamine (PAMAM) dendrimer, wherein the PAMAM dendrimer is selected from the group consisting of: a first generation PAMAM dendrimer, a second generation PAMAM dendrimer, a third generation PAMAM dendrimer, a fourth generation PAMAM dendrimer, a fifth generation PAMAM dendrimer, a sixth generation PAMAM dendrimer, a seventh generation PAMAM dendrimer, and an eighth generation PAMAM dendrimer.

4. The composite of claim 1 , wherein the amine-rich macromolecule is the polyamidoamine (PAMAM) dendrimer, wherein the PAMAM dendrimer is functionalized with additional functional moieties selected from the group consisting of: an imine, a hydroxyl, a succinamic acid, a caboxylate, and a combination thereof.

5. The composite of claim 1 , wherein the amine-rich macromolecule is a fourth generation polyamidoamine (PAMAM) dendrimer, wherein the PAMAM dendrimer has an ethylenediamine core and tertiary amine branches, and wherein the support material is titania.

6. The composite of claim 1 , wherein the amine-rich macromolecule is a fourth generation polyamidoamine (PAMAM) dendrimer.

7. The composite of claim 1 , wherein the amine-rich macromolecule is a PAMAM dendrimer having an ethylenediamine core and tertiary amine branches.

8. A composite comprising:
a support material having bonded to its surface a plurality of amine-rich macromolecules, wherein the support material is selected from the group consisting of: a metal oxide, a silicate, and a carbon material, wherein the amine-rich macromolecule is a fourth generation polyamidoamine (PAMAM) dendrimer, wherein the PAMAM dendrimer has an ethylenediamine core and tertiary amine branches.

Assignees

• Kuhn John Norbert
• Woodcock Henry Lee
• Barakat Mohamed A
• Alghamdi Mansour A
• Alkhalaf Abdulrahman
• Univ South Florida
• Univ King Abdulaziz

Inventors

• Kuhn John Norbert
• Woodcock Henry Lee
• Barakat Mohamed A
• Alghamdi Mansour A
• Alkhalaf Abdulrahman

Classifications

• B01D15/36

  involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion · CPC title

• B01J20/06

  comprising oxides or hydroxides of metals not provided for in group B01J20/04 · CPC title

• B01J20/262 Primary

  obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation (macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds per se C08G) · CPC title

• B01D15/3828

  Ligand exchange chromatography, e.g. complexation, chelation or metal interaction chromatography · CPC title

• C02F2103/365

  from petrochemical industry (e.g. refineries) · CPC title