公开(公告)号：US10967367B2

公开(公告)日：2021-04-06

申请号：US16478166

申请日：2017-02-10

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Chunxia Costeux ,  Liu Yang ,  Chengli Zu

IPC: B01J49/60 ,  B01J39/05 ,  B01J49/53 ,  B01J31/10 ,  B01J35/00 ,  B01J35/02 ,  B01J39/18

Abstract: Provided is a method of cleaning a collection of resin beads, wherein the method comprises bringing the collection of resin beads into contact with an aqueous solution, wherein the aqueous solution comprises one or more dissolved amine compounds, wherein the collection of resin beads comprises polymer that comprises attached carboxylic acid groups or sulfonic acid groups or a mixture thereof.

公开(公告)号：US20200010926A1

公开(公告)日：2020-01-09

申请号：US16490626

申请日：2017-03-21

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Zheng ZHANG ,  Chunxia Costeux

IPC: C22B26/12 ,  B01J39/19 ,  B01J39/20 ,  C22B3/42 ,  B01J47/02

Abstract: Provided is a particulate composition comprising a collection of resin beads and LiX.2Al(OH)3.nH2O, wherein n is 0 to 10, wherein X is a halogen, wherein the resin beads contain polymer having 0.5 to 3 equivalents of amine pendant groups per liter of the particulate composition, wherein the resin beads have average pore diameter of 5 to 100 nm, wherein the collection of resin beads has harmonic mean particle diameter of 200-1000 micrometers; wherein the collection of resin beads has surface area of 20 to 150 m2/g; and wherein aluminum is present in an amount of 14.5% percent or higher, by weight of aluminum atoms based on the total weight of the particulate composition. Also provided is a method of removing lithium from brine using such a composition.