PATENT CLAIM ANALYSIS

Application Number: 16288870
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-09
Patent Classification: ["562", "123000"]

Abstract:
The present invention concerns a process for the continuous industrial preparation of an alkanesulphonic acid, from the corresponding alkane and sulphur trioxide, said process being carried out in a solvent which is the said alkane sulphonic acid.

Claim (Index 1):
A process for the continuous industrial preparation of alkanesulphonic acid of formula C n H 2n+1 SO 3 H from the alkane of formula C n H 2n+2 , wherein n represents an integer comprised between 1 and 20 inclusive, said process comprising at least the following steps:\n a) loading of alkanesulphonic acid C n H 2n+1 SO 3 H, wherein n is as defined above, in a reactor, b) heating said alkanesulphonic acid at a temperature comprised between 25\u00b0 C. and 120\u00b0 C., c) introducing a quantity of sulphur trioxide so that the molar ratio (alkanesulphonic acid)/(sulphur trioxide) is comprised between 70/30 and 95/5, d) introducing the alkane under a pressure comprised between 4 MPa and 15 MPa, d) introducing a radical initiator, e) continuous conducting of the reaction, simultaneously, sequentially or alternatively performing the following three sub-steps e1), e2) and e3):\n e1) addition of sulphur trioxide in order to maintain the initial molar ratio (alkanesulphonic acid)/(sulphur trioxide) defined in step c), \n e2) addition of alkane in order to maintain a molar ratio (alkane)/(sulphur trioxide) comprised between 4/1 and 2/1, \n e3) continuous withdrawal of the alkanesulphonic acid of formula C n H2 n+1 SO 3 H, and \n f) recovery of the alkanesulphonic acid of formula C n H 2n+1 SO 3 H after optional separation of unreacted reagents, and optionally any undesired by-products.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 99.0
- Lexical Diversity: 1.25
- Patent Class: 562.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15778802', '10502845', '14111904', '16332222', '12670382']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6683879703572758
- 35 USC 102 Novelty (BERT): 0.4836754917395279
- Combined Prediction Score: 0.649916722495501
- Mean Citation Score: 135.869193
- Max Citation Score: 149.87848
- Similarity Product: 101.56871264647958

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