PATENT CLAIM ANALYSIS

Application Number: 15763318
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["568", "618000"]

Abstract:
The present invention provides a method for directly preparing glycol dimethyl ether and co-producing ethylene glycol from ethylene glycol monomethyl ether. More specifically, the method comprises passing a feedstock containing a raw material of ethylene glycol monomethyl ether and a carrier gas through a reactor loaded with a solid acid catalyst to produce glycol dimethyl ether and ethylene glycol, at a reaction temperature range from 40° C. to 150° C. and a reaction pressure range from 0.1 MPa to 15.0 MPa; wherein a carrier gas is an optional inactive gas; and the feedstock contains water whose volume concentration in the feedstock is in a range from 0% to 95%; and the weight hourly space velocity of the raw material of ethylene glycol monomethyl ether is in a range from 0.05 h −1  to 5.0 h −1 ; and the volume concentration of the raw material of ethylene glycol monomethyl ether in the feedstock is in a range from 1% to 100%; and the volume concentration of the carrier gas in the feedstock is in a range from 0% to 99%. In the method of the present invention, using a solid acid as a catalyst and ethylene glycol monomethyl ether as a raw material, under a low temperature condition, glycol dimethyl ether and ethylene glycol are prepared directly with high selectivity; moreover, there is substantially or completely no production of by-product 1,4-dioxane that causes pollution to the environment and is harmful to the human body or animal bodies.

Claim (Index 10):
The method according to  claim 1 , wherein the reactor is a fixed bed reactor or a tank reactor.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 90.0
- Lexical Diversity: 2.54286
- Patent Class: 568.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15763296', '15537928', '15105364', '15743698', '15315603']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7253167982891602
- 35 USC 102 Novelty (BERT): 0.5584015858704068
- Combined Prediction Score: 0.708625277047285
- Mean Citation Score: 301.590274
- Max Citation Score: 418.41577
- Similarity Product: 300.58589948271754

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test