PATENT CLAIM ANALYSIS

Application Number: 16063302
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["570", "178000"]

Abstract:
The invention relates to a process for producing 2,3,3,3-tetrafluoropropene performed using a starting composition, comprising the steps of placing the starting composition in contact with HF, in the presence of a catalyst, to produce a composition A comprising 2,3,3,3-tetrafluoropropene (1234yf), intermediate products B consisting of 2-chloro-3,3,3-trifluoropropene (1233xf), 1,1,1,2,2-pentafluoropropane (245cb), and side products C consisting of E-1-chloro-3,3,3-trifluoro-1-propene (1233zdE), trans-1,3,3,3-tetrafluoro-1-propene (1234zeE) and 1,1,1,3,3-pentafluoropropane (245fa); recovery of said composition A and purification thereof to form and recover a first stream comprising 2,3,3,3-tetrafluoropropene (1234yf) and one or more streams comprising 2-chloro-3,3,3-trifluoropropene (1233xf) and/or 1,1,1,2,2-pentafluoropropane (245cb); recycling into step a) of said one or more streams comprising 2-chloro-3,3,3-trifluoropropene (1233xf) and/or 1,1,1,2,2-pentafluoropropane (245cb).

Claim (Index 24):
The process as claimed in  claim 16 , wherein said liquid stream L1 comprises part of the intermediate products B and all or part of the side products C, and all or part of the liquid stream L1 is brought to low temperature, between \u221250\u00b0 C. and 20\u00b0 C., to form a first phase L1a comprising part of the unreacted HF and a second phase L1b comprising said intermediate products B and said side products C; optionally or not, said stream G1d formed in step b2) is mixed with the liquid stream L1 before said stream is brought to low temperature.

Metadata:
- Claim Count in Document: 38.0
- Percentile: 94.0
- Lexical Diversity: 2.15385
- Patent Class: 570.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16063301', '16060037', '16063304', '16064013', '13980669']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8058719536887099
- 35 USC 102 Novelty (BERT): 0.5870672850440495
- Combined Prediction Score: 0.7839914868242439
- Mean Citation Score: 566.545474
- Max Citation Score: 649.8997
- Similarity Product: 389.06546301082375

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