US 11,452,984 B2 · Adsorbent composition and a process for preparing the same

Abstract

An adsorbent composition for reducing impurities of heat transfer fluids is provided and a process for the preparation of the same. The adsorbent composition comprises a layered double hydroxide in an amount in the range of 15 to 70 wt % of the total mass of the composition; alumina in an amount in the range of 30 to 85 wt % of the total mass of the composition; and optionally activated bauxite in an amount in the range of 15 to 50 wt % of the total mass of the composition. The adsorbent composition is economical and eco-friendly, having feed processing capacity in the range of 58 to 600 gm/gm.

Claims14

Dependent claims

An adsorbent composition for reducing impurities of heat transfer fluids, comprising:

a. a layered double hydroxide in an amount in the range of 15 to 70 wt % of the total mass of the composition;
b. an alumina in an amount in the range of 30 to 85 wt % of the total mass of the composition;
c. optionally, activated bauxite in an amount in the range of 15 to 50 wt % of the total mass of the composition;
and
wherein the layered double hydroxide is hydrotalcite having magnesium oxide (MgO) to aluminum oxide (Al2O3) ration in the range of 4 to 5 and surface area in the range of 5 to 15 m2/g.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/618,744Filed 18 May 2018

Priority

IN 20172101760719 May 2017

Published

US 2020/0164340 A128 May 2020

Granted

27 Sep 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

B01J 20/041
Comprising compounds of alkali metals, alkaline earth metals or magnesium: oxides or hydroxides
B01J 20/08
Comprising oxides or hydroxides of metals not provided for in group B01J20/04: comprising aluminium oxide or hydroxide; comprising bauxite
B01J 20/28004
Characterised by their physical properties: sorbent size or size distribution, e.g. particle size
B01J 20/28011
Characterised by their physical properties: other properties, e.g. density, crush strength

Adsorbent composition and a process for preparing the same

Life of this patent

Adsorbent composition and a process for preparing the same

Life of this patent

Abstract

Claims14