PATENT CLAIM ANALYSIS

Application Number: 15778425
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["549", "531000"]

Abstract:
In a process for the epoxidation of propene, comprising the steps of reacting propene with hydrogen peroxide, separating propene oxide and a recovered propene stream from the reaction mixture, separating propane from all or a part of the recovered propene stream in a C3 splitter column, and passing the overhead product stream of the C3 splitter column to the epoxidation step, a propane starting material with a propane fraction of from 0.002 to 0.10 is used, the epoxidation is operated to provide a propane fraction in the reaction mixture of from 0.05 to 0.20 and the C3 splitter column is operated to provide an overhead product stream which comprises a propane fraction of at least 0.04 in order to reduce the size and the energy consumption of the C3 splitter column.

Claim (Index 17):
A process for the epoxidation of propene, comprising the steps:\n a) continuously reacting propene with hydrogen peroxide in the presence of an epoxidation catalyst, using propene in molar excess to hydrogen peroxide, to provide a reaction mixture comprising propene oxide, non-reacted propene and propane; b) separating propene oxide and a recovered propene stream with a total content of propene and propane of more than 90% by weight from the reaction mixture obtained in step a); c) feeding all or a part of said recovered propene stream to a C3 splitter column for separating propene and propane and withdrawing an overhead product stream depleted in propane with regard to said recovered propene stream and a bottoms product stream enriched in propane with regard to said recovered propene stream from said column; and d) passing the overhead product stream obtained in step c) to step a); wherein a propene starting material containing propane with a mass ratio of propane to the combined amount of propene and propane of from 0.002 to 0.10 is fed to said process for the epoxidation of propene, the reaction mixture provided in step a) comprises propane with a mass ratio of propane to the combined amount of propene and propane of from 0.05 to 0.20 and the overhead product stream withdrawn from the C3 splitter column comprises propane with a mass ratio of propane to the combined amount of propene and propane of at least 0.04.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 93.0
- Lexical Diversity: 2.33898
- Patent Class: 549.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16302099', '10724300', '10428607', '16076600', '12837962']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7159497631090452
- 35 USC 102 Novelty (BERT): 0.5317896420644946
- Combined Prediction Score: 0.6975337510045903
- Mean Citation Score: 296.667796
- Max Citation Score: 364.23923
- Similarity Product: 319.9853737767458

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

Dataset: test