PATENT CLAIM ANALYSIS

Application Number: 16066872
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["570", "160000"]

Abstract:
This invention provides a method for stably producing 2,3,3,3-tetrafluoropropene for a long period of time while suppressing catalyst deactivation. This invention provides a method for producing 2,3,3,3-tetrafluoropropene, the method comprising: (d) reacting 2-chloro-3,3,3-trifluoropropene with hydrogen fluoride in the presence of a catalyst; (e) subjecting the reaction mixture obtained in step (d) to distillation to separate the mixture into a first stream comprising 2,3,3,3-tetrafluoropropene as a main component and a second stream comprising unreacted hydrogen fluoride and organic matter containing unreacted 2-chloro-3,3,3-trifluoropropene as main components; and (f) recycling the second stream separated in step (e) above to the reaction of step (d), wherein the distillation of step (e) is performed under conditions that satisfy the relationship of a specific equation.

Claim (Index 1):
A method for producing 2,3,3,3-tetrafluoropropene from 2-chloro-3,3,3-trifluoropropene,\n the method comprising the following steps (d) to (f): (d) reacting 2-chloro-3,3,3-trifluoropropene with hydrogen fluoride in the presence of a catalyst; (e) subjecting the reaction mixture obtained in step (d) to distillation to separate the mixture into a first stream comprising 2,3,3,3-tetrafluoropropene as a main component and a second stream comprising unreacted hydrogen fluoride and organic matter containing unreacted 2-chloro-3,3,3-trifluoropropene as main components; and (f) recycling the second stream separated in step (e) above to the reaction of step (d), wherein the distillation of step (e) is performed under conditions that satisfy the relationship of the following equation (1):\n Y 2 \u2265\u22120.000027546483936 X 2 5 +0.001787977446337 X 2 4 \u22120.046613778365698 X 2 3 +0.617838436698327 X 2 2 \u22124.260415044902270 X 2 +12.671429439720600 \u2003\u2003(1), \n wherein Y 2  is the pressure in a distillation column where the distillation of step (e) is performed, and X 2  is the molar ratio of the hydrogen fluoride to the organic matter in the distillation column.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 94.0
- Lexical Diversity: 2.02899
- Patent Class: 570.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15324827', '14936160', '15139662', '13879435', '14376190']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.752790709981799
- 35 USC 102 Novelty (BERT): 0.5888045056254703
- Combined Prediction Score: 0.7363920895461661
- Mean Citation Score: 440.5047659999999
- Max Citation Score: 502.09784
- Similarity Product: 440.8976388050748

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

Dataset: test