PATENT CLAIM ANALYSIS

Application Number: 16216766
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-04
Patent Classification: ["562", "607000"]

Abstract:
In processes for the hydrolysis of a methyl acetate with at least one of water and methanol in the presence of at least one Brønsted acid catalyst to produce acetic acid the performance of the catalyst is improved by using a methyl acetate feed in which the total amount of acetaldehyde and 1,1 dimethoxyethane impurities is maintained at 100 ppm wt or less calculated as mass equivalents of acetaldehyde.

Claim (Index 27):
A process for the dehydration-hydrolysis of methyl acetate and methanol to co-produce acetic acid and dimethyl ether which process is integrated with a carbonylation process for the production of methyl acetate which integrated process comprises the steps:\n a) carbonylating dimethyl ether with a carbon monoxide-containing gas in the presence of a zeolite carbonylation catalyst to produce a carbonylation reaction product and recovering methyl acetate therefrom; b) pre-treating at least a portion of the methyl acetate recovered in step (a) to reduce the amount of acetaldehyde and 1,1 dimethoxyethane impurities therein; c) converting methanol and methyl acetate by dehydration-hydrolysis in the presence of at least one Br\u00f8nsted acid catalyst to co-produce acetic acid and dimethyl ether; in which dehydration-hydrolysis process the performance of the catalyst is improved by using as a methyl acetate feed methyl acetate pre-treated in step (b) in which the total amount of acetaldehyde and 1,1 dimethoxyethane impurities is maintained at 100 ppm wt or less calculated as mass equivalents of acetaldehyde.

Metadata:
- Claim Count in Document: 53.0
- Percentile: 98.0
- Lexical Diversity: 1.45833
- Patent Class: 562.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15312060', '15311965', '15312017', '15311925', '15311939']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7661697553886091
- 35 USC 102 Novelty (BERT): 0.5895545522768271
- Combined Prediction Score: 0.7485082350774309
- Mean Citation Score: 383.340216
- Max Citation Score: 516.65704
- Similarity Product: 416.0286524749327

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