PATENT CLAIM ANALYSIS

Application Number: 15742597
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["568", "480000"]

Abstract:
Provided is a method for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid, which enables one to achieve an operation stably over a long period of time while improving an effective yield, even in a high-load reaction, and in the method for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid, multilayer filling of stacking two or more catalyst layers each containing a complex metal oxide catalyst in the axial direction of the tube under specified conditions is performed, and the catalyst layer on the most gas outlet side in the tube axis contains a catalyst containing a compound represented by a specified formulation formula.

Claim (Index 1):
A method for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid, the method comprising subjecting an alkene to gas-phase catalytic partial oxidation with molecular oxygen by using a multitubular reactor having a complex metal oxide catalyst filled therein, thereby obtaining a corresponding unsaturated aldehyde and/or unsaturated carboxylic acid, wherein\n two or more catalyst layers each containing a complex metal oxide catalyst are stuck in an axial direction of the tube, thereby achieving multilayer filling; a formulation of the complex metal oxide catalyst contained in one catalyst layer is different from a formulation of the complex metal oxide catalyst contained in at least one of other catalyst layers; a ratio of a component amount of bismuth to a component amount of molybdenum of the catalyst layer on the most gas inlet side in the tube axis is larger than a ratio of a component amount of bismuth to a component amount of molybdenum of the catalyst layer on the most gas outlet side in the tube axis; in all of the two catalyst layers adjacent to each other, a ratio of a component amount of bismuth to a component amount of molybdenum of the catalyst layer on the gas inlet side in the tube axis is equal to or larger than a ratio of a component amount of bismuth to a component amount of molybdenum of the catalyst layer on the gas outlet side in the tube axis; and the catalyst layer on the most gas outlet side in the tube axis contains a catalyst containing a compound represented by the following formula (1):\n Mo 12 Bi a Fe b Co c Ni d X e Y f Z g O h \u2003\u2003(1) \n wherein\n X is at least one element selected from the group consisting of magnesium (Mg), calcium (Ca), manganese (Mn), copper (Cu), zinc (Zn), cerium (Ce) and samarium (Sm); Y is at least one element selected from the group consisting of boron (B), phosphorus (P), arsenic (As), antimony (Sb), tungsten (W), silicon (Si) and aluminum (Al); Z is at least one element selected from the group consisting of sodium (Na), potassium (K), rubidium (Rb) and cesium (Cs); a to h represent atomic ratios of the respective components; a=0.40 or more and less than 0.80; b=1.0 to 2.5; c=3.0 to 7.5; d=2.0 to 3.5; e=0 to 10; f=0 to 10; g=0.01 to 1.0; h is expressed by a numerical value satisfying oxidation states of other elements; d/a is more than 2.5 and 8.8 or less; d/g is 2.0 or more and 350 or less; \n and a/g is 0.4 or more and less than 80.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 86.0
- Lexical Diversity: 1.62319
- Patent Class: 568.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14903418', '10387244', '14903410', '14784652', '10385676']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7116558036366268
- 35 USC 102 Novelty (BERT): 0.5565512761073764
- Combined Prediction Score: 0.6961453508837018
- Mean Citation Score: 304.665636
- Max Citation Score: 364.0113
- Similarity Product: 340.78285269840364

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