PATENT CLAIM ANALYSIS

Application Number: 15763296
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["568", "866000"]

Abstract:
This invention provides a method for preparing ethylene glycol by hydrolysing ethylene glycol monomethyl ether. The method comprises passing a fresh raw material containing ethylene glycol monomethyl ether and water through a reaction zone loaded with a solid acid catalyst to react under the following conditions; separating the reacted mixture via a separation system to obtain a target product of ethylene glycol, by-products containing methanol, dimethyl ether and ethylene glycol-based derivatives, and an unreacted raw material containing ethylene glycol monomethyl ether and water; passing the target product of ethylene glycol into a product collection system; and passing methyl alcohol and dimethyl ether in the by-products into a by-product collection system; and after being mixed with the fresh raw materials containing ethylene glycol monomethyl ether and water, the ethylene glycol-based derivatives in the by-products and the unreacted raw material containing ethylene glycol monomethyl ether and water being recycled into the reaction zone, to realize the preparation of ethylene glycol by hydrolysing ethylene glycol monomethyl ether. This invention provides a new process to realize the preparation of ethylene glycol by hydrolysing ethylene glycol monomethyl ether. And in the method, the catalyst has long life and good stability.

Claim (Index 2):
The method according to  claim 1 , wherein the acidic molecular sieve has a pore structure of 8 to 12 membered ring and a pore channel system of 1 to 3 dimensions; preferably, the structure type of the acidic molecular sieve is one or more types selected from the group consisting of MWW, FER, MFI, MOR, FAU and BEA.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 90.0
- Lexical Diversity: 2.71429
- Patent Class: 568.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15763318', '15105364', '15743698', '15537928', '15316178']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7280108134119713
- 35 USC 102 Novelty (BERT): 0.5534571349873547
- Combined Prediction Score: 0.7105554455695097
- Mean Citation Score: 311.45493
- Max Citation Score: 392.09335
- Similarity Product: 290.6175694831073

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

Dataset: test