PATENT CLAIM ANALYSIS

Application Number: 16076600
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-03
Patent Classification: ["549", "531000"]

Abstract:
A continuous process for the preparation of propylene oxide, comprising a start-up stage and normal run stage, wherein the normal run stage comprises (i) continuously providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, a formate salt, water and optionally propane, wherein in the liquid feed stream, the molar amount of the formate salt relative to the molar amount of hydrogen peroxide at a given point of time during the normal run stage is a N (Fo/H 2 O 2 ); (ii) continuously passing the liquid feed stream provided in (i) into an epoxidation zone comprising a catalyst comprising a titanium zeolite having framework type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propylene oxide, acetonitrile, water, the formate salt, optionally propene, and optionally propane; (iii) continuously removing an effluent stream from the epoxidation zone, the effluent stream comprising propylene oxide, acetonitrile, water, at least a portion of the formate salt, optionally propene, and optionally propane; wherein the normal run stage is characterized in an average rate of change of a N (Fo/H 2 O 2 ) of less than 0 h −1 .

Claim (Index 16):
The continuous process of  claim 15 , wherein at least 98 weight-% of the liquid feed stream provided in (a) consist of propene, acetonitrile, and optionally propane, wherein the liquid feed stream according to (a) comprises hydrogen peroxide in an amount ranging from 0 to 0.01 weight-%, based on the total weight of the liquid feed stream, and wherein the liquid feed stream according to (a) comprises the formate salt in an amount ranging from 0 to 0.01 weight-%, based on the total weight of the liquid feed stream.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 96.0
- Lexical Diversity: 2.65517
- Patent Class: 549.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14908042', '14907998', '14906852', '15550581', '16315680']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7535815294403359
- 35 USC 102 Novelty (BERT): 0.5138322709207925
- Combined Prediction Score: 0.7296066035883815
- Mean Citation Score: 276.25853
- Max Citation Score: 305.87823
- Similarity Product: 242.6505844615137

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