PATENT CLAIM ANALYSIS

Application Number: 15881170
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["562", "519000"]

Abstract:
A carbon nitride heterogeneous catalyst containing rhodium, a method for preparing the catalyst, and a method for preparing acetic acid using the catalyst is disclosed. The heterogeneous catalyst is characterized in that the rhodium metal is contained in carbon nitride which is a support insoluble in a liquid solvent, such as water or alcohol. Thus, the catalyst can easily be separated from a resulting product even by a simple process such as filtration. Accordingly, the carbon nitride heterogeneous catalyst exhibits excellent long-term stability and activity by being capable of overcoming the disadvantages of the method using a conventional homogeneous catalyst and minimizing the phenomenon of rhodium leaching, compared to the results of the conventional homogeneous catalytic reactions. The catalyst can thus be effectively used for the preparation of acetic acid by a carbonylation reaction between methanol and carbon monoxide.

Claim (Index 9):
A method of preparing carboxylic acid, comprising reacting at a temperature of 50\u00b0 C. to 200\u00b0 C. by injecting a carbon monoxide-containing gas into an alcohol-containing solution at a pressure of 10 bar to 200 bar in the presence of the composite catalyst according  claim 1 .

Metadata:
- Claim Count in Document: 50.0
- Percentile: 86.0
- Lexical Diversity: 1.89873
- Patent Class: 562.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15540497', '11578718', '11903237', '10434596', '15540857']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7022980871022484
- 35 USC 102 Novelty (BERT): 0.5060326268213378
- Combined Prediction Score: 0.6826715410741574
- Mean Citation Score: 221.75647400000005
- Max Citation Score: 257.9316
- Similarity Product: 186.06681939897533

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