Patent · US Active

Lightweight modified filter material, preparation method therefor and use thereof

US11648526B2 · kind B2 · utility

0Cited by

1References

13Claims

0Family size

Inventors

Yang Cui · New Taipei, TW
Jun He · Guiyang, CN
Xuelie Cui · Jilin, CN

Key dates

Filing date	Apr 11, 2018
Grant date	May 16, 2023
Priority date	—
Expiry date	Aug 4, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F1/288
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A lightweight modified filter material, a preparation method therefor and use thereof, the lightweight modified filter material being prepared from the following components in parts by mass: 75-100 parts of waste glass, 5-20 parts of a metal oxide modifier and 1-10 parts of a foamer. The lightweight modified filter material has the advantages of being lightweight, having large specific surface area, a high isoelectric point, porosity and the like, increasing the isoelectric point and service life of the filter material. The added metal oxide can be combined with SiO2 in the glass to form Si—O-Me (Me metal ions) and enter the glass network.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.