PATENT CLAIM ANALYSIS

Application Number: 15941306
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["502", "300000"]

Abstract:
The invention has as its object a method for preparation of catalysts based on cobalt substrates, implementing a concatenation of stages for impregnation, drying and calcination under particular conditions. The invention also relates to the use of said catalysts in Fischer-Tropsch synthesis methods.

Claim (Index 12):
Method according to  claim 1 , in which the method comprises the following stages:\n A first stage a) for impregnation of the porous substrate, by bringing into contact at least one solution that comprises at least one inorganic cobalt precursor at a temperature of between 5 and 40\u00b0 C., with said impregnation making possible the deposition of 2 to 15% by weight of cobalt in relation to the weight of the final precatalyst, A first stage b) for drying the intermediate precatalyst that is obtained at the end of the impregnation stage a), said drying is implemented in the presence of a gas that comprises air and/or an inert gas, with a flow rate of gas per hour and per gram of intermediate precatalyst that is obtained from stage a) (GHSV) of between 0.1 and 1.5 Nl/h/g, and at a temperature of between 60 and 110\u00b0 C., A first stage c) for calcination of the intermediate precatalyst that is obtained at the end of stage b), said calcination is implemented in the presence of a gas that comprises air and/or an inert gas, with a flow rate of gas per hour and per gram of intermediate precatalyst that is obtained from stage b) (GHSV) of between 0.1 and 1.5 Nl/h/g, and at a temperature of between 200 and 550\u00b0 C., A stage d) for final impregnation of the intermediate precatalyst that is obtained in the calcination stage c), by bringing into contact said intermediate precatalyst with at least one solution that comprises at least one inorganic cobalt precursor at a temperature of between 5 and 40\u00b0 C., with said impregnation making it possible to reach the targeted cobalt content of the precatalyst, A stage e) for final drying of the intermediate precatalyst that is obtained at the end of the impregnation stage d), said drying is implemented in the presence of a gas that comprises air and/or an inert gas, with a flow rate of gas per hour and per gram of intermediate precatalyst that is obtained from stage d) (GHSV) of between 1.8 and 6.0 Nl/h/g, and at a temperature of between 110 and 160\u00b0 C., A stage f) for final calcination of the intermediate precatalyst that is obtained at the end of stage e), said calcination is implemented in the presence of a gas that comprises air and/or an inert gas, with a flow rate of gas per hour and per gram of intermediate precatalyst that is obtained from stage e) (GHSV) of between 1.5 and 6.0 Nl/h/g, at a temperature of between 200 and 550\u00b0 C.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 90.0
- Lexical Diversity: 1.23684
- Patent Class: 502.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13905575', '13903010', '13201715', '10306874', '14130287']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7622769757108764
- 35 USC 102 Novelty (BERT): 0.5149091331331623
- Combined Prediction Score: 0.737540191453105
- Mean Citation Score: 237.901402
- Max Citation Score: 252.23201
- Similarity Product: 169.67388418976128

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