PATENT CLAIM ANALYSIS

Application Number: 16315680
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-07
Patent Classification: ["549", "531000"]

Abstract:
Disclosed herein is a process for purifying propylene oxide, including the steps of: (i) providing a stream S0 containing propylene oxide, acetonitrile, water, and an organic compound containing a carbonyl group —C(═O)—; and (ii) separating propylene oxide from the stream S0 by subjecting the stream S0 to distillation conditions in a distillation column to obtain a gaseous top stream S1c which is enriched in propylene oxide compared to the stream S0, a liquid bottoms stream S1a which is enriched in acetonitrile and water compared to the stream S0, and a side stream S1b containing propylene oxide which is enriched in the carbonyl compound compared to the stream S0.

Claim (Index 10):
The process of  claim 1 , wherein the stream S0 is obtained by a process comprising:\n (a) providing a stream comprising propene and preferably propane, hydrogen peroxide or a source of hydrogen peroxide, water, and acetonitrile; (b) passing the liquid feed stream provided in (a) into an epoxidation zone comprising an epoxidation catalyst comprising a titanium zeolite, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propene and optionally propane, propylene oxide, water, acetonitrile, and the organic compound comprising a carbonyl group; (c) removing an effluent stream from the epoxidation zone, the effluent stream comprising propylene oxide, water, acetonitrile, propene and optionally propane, and the organic compound comprising a carbonyl group; and (d) separating propene and optionally propane from the effluent stream by distillation, comprising subjecting the effluent stream to distillation conditions in a distillation unit, obtaining a gaseous stream which is enriched in propene and optionally propane compared to the effluent stream subjected to distillation conditions, and a liquid bottoms stream which is enriched in propylene oxide, water, acetonitrile and the organic compound comprising a carbonyl group compared to the effluent stream subjected to distillation conditions; wherein said liquid bottoms stream obtained according to (d) is the stream S0.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 99.0
- Lexical Diversity: 2.19298
- Patent Class: 549.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16315345', '15521924', '16318221', '16076600', '14908042']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6810173929945171
- 35 USC 102 Novelty (BERT): 0.5223649226888155
- Combined Prediction Score: 0.6651521459639469
- Mean Citation Score: 276.243632
- Max Citation Score: 331.9964
- Similarity Product: 322.0724930414677

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