US 2022/0048001 A1 · Method for Preparing Dispersant using Lignin Degradation Products

Abstract

A method for preparing dispersant using lignin degradation products includes preparation of lignin degradation products: degrading lignin which are used as raw materials using alkali through microwave-assisted activation at the presence of a metal oxide catalyst to obtain the lignin degradation products; and preparation of dispersant: preparing dispersant by molecularly reforming and chemically modifying the lignin degradation products obtained in the step of preparation of lignin degradation products.

Claims10

Dependent claims

A method for preparing dispersant using lignin degradation products, comprising the steps of:

(1) preparation of lignin degradation products:
degrading lignin which are used as raw materials using alkali through microwave-assisted activation at the presence of a metal oxide catalyst to obtain the lignin degradation products;
and
(2) preparation of dispersant:
preparing dispersant by molecularly reforming and chemically modifying the lignin degradation products obtained in step (1).

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

16/967,720Filed 28 Aug 2019

Priority

CN 201910344143.726 Apr 2019

Published

17 Feb 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification33 codes

C09K 23/00
Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
B01J 19/126
Incoherent waves: microwaves
C04B 18/24
Organic: vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper , cork
C04B 18/26
Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper , cork: wood, e.g. sawdust, wood shavings

Method for Preparing Dispersant using Lignin Degradation Products

Life of this patent

Method for Preparing Dispersant using Lignin Degradation Products

Life of this patent

Abstract

Claims10