PATENT CLAIM ANALYSIS

Application Number: 15762868
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["562", "534000"]

Abstract:
The present invention relates to a method for preparing acrylic acid from glycerin. More specifically, the present invention provides a method which can improve the selectivity of acrolein by applying a specific catalyst composition and process conditions to minimize the generation of coke carbon of the catalyst, and can prepare acrylic acid with higher productivity for a longer duration of time because a dehydration reaction can be performed for a longer working period while maintaining catalyst activity at a high level during the reaction.

Claim (Index 7):
The method for preparing acrylic acid according to  claim 1 , wherein the partial oxidation reaction is carried out in the presence of a catalyst represented by Chemical Formula 2 below and oxygen or air:\n Mo l W m V m (M 3 ) q (M 4 ) r O z \u2003\u2003[Chemical Formula 2] in Chemical Formula 2, M 3  is Fe, Cu, Bi, Cr, Sn, Sb, or K, M 4  is an alkaline earth metal, l, m, n, q, r, and z represent an atomic ratio of Mo, W, V, A, B, and O, respectively, wherein l is 5 to 15, m/l is 0.15 to 0.4, n/l is 0.1 to 0.5, g/l is 0.1 to 0.4, r/l is 0 to 0.2, and z is a value determined according to the oxidation state of another element.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 90.0
- Lexical Diversity: 1.51724
- Patent Class: 562.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15749472', '15520382', '12988355', '14491433', '14234661']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7761543513094791
- 35 USC 102 Novelty (BERT): 0.546156444784941
- Combined Prediction Score: 0.7531545606570252
- Mean Citation Score: 329.757746
- Max Citation Score: 395.77475
- Similarity Product: 275.57877226158973

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