Cross-linked polymeric resin and methods for wastewater treatment

Patent metadata

Field	Value
Publication number	US-10364164-B2
Application number	US-201615238293-A
Country	US
Kind code	B2
Filing date	Aug 16, 2016
Priority date	Dec 4, 2015
Publication date	Jul 30, 2019
Grant date	Jul 30, 2019

Abstract

Cross-linked polymeric resins from anilines linked together with polyamine alkyl chains. A process for producing the cross-linked polymeric resins by Mannich-type polycondensation of anilines and diaminoalkanes linked together by an aldehyde and subsequent basification. In addition, a method for removing heavy metals, such as Pb (II) and As (V) from aqueous solution via contacting and treatment with the cross-linked polymeric resins.

First claim

The invention claimed is:

1. A cross-linked polymeric resin of formula (I)

or a salt, solvate, tautomer or stereoisomer derived from the cross-linked polymeric resin of formula (I);
wherein, each R 1 is independently selected from —H, an alkyl, a cycloalkyl, and an optionally aryl;
each R 3 is independently selected from —H, —F, —Cl, —Br, —CN, —OR 3 , an alkyl, a cycloalkyl, and an aryl;
each R 3 is independently selected from —H, an alkyl, a cycloalkyl, and an aryl;
n is a positive whole number in the range of 2-16;
X is a positive whole number; and
A 1 forms a bond to A 2 of another monomer unit.

2. The cross-linked polymeric resin of claim 1 , wherein each R 1 is —H.

3. The cross-linked polymeric resin of claim 1 , wherein the cross-linked polymeric resin of formula (I) is

or a salt or solvate derived therefrom;
wherein, n is a positive whole number in the range of 4-12;
X is a positive whole number; and
A 1 forms a bond to A 2 of another monomer unit.

4. The cross-linked polymeric resin of claim 1 , which is in the form of a pulverulent powder having a BET surface area in the range of 2.0 to 15.0 m 2 g −1 .

Assignees

• Univ King Fahd Pet & Minerals

Inventors

• Al Hamouz Othman Charles Sadeq
• Akintola Oluwafemi S
• Awadh Tawfik Abdo Saleh

Classifications

• C02F2103/34

  from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 · CPC title

• C08G73/0266

  Polyanilines or derivatives thereof · CPC title

• B01J20/3425

  of sorbents or filter aids comprising organic materials · CPC title

• B01J20/267

  Cross-linked polymers · CPC title

• C02F2303/16

  Regeneration of sorbents, filters · CPC title