PATENT CLAIM ANALYSIS

Application Number: 16287597
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["252", "184000"]

Abstract:
An alumina-based adsorbent and method of making exhibiting high affinity and capacity towards fluoride ions and oxyanions of phosphorus and arsenic in a broad pH range and presence of large excess of competitive ions. Alumina based adsorbent is a mixed oxide of alumina existing in tetra-, penta-, and octahedral coordination at specific ratio, and oxides of polyvalent metals of elements titanium, zirconium, tin, cerium, lanthanum, iron, or combinations thereof. The alumina based adsorbent may be used for selective removal of fluoride ion and oxyanions of phosphorus and arsenic from drinking water, industrial streams and wastes, in medicine and food industry.

Claim (Index 1):
A method of making an adsorbent comprising precipitation of mixed metal oxide having a ratio of Al 2 O 3  and TiO 2 , or having a ratio of Al 2 O 3  and TiO 2  with a transition metal oxide, Z y O x , where Z y  represents a transition metal including iron, zinc, zirconium, or tin, and the addition of said transition metal is less than 10% by weight, said precipitation by a reaction between a solution or a slurry of an aluminum salt, a solution or slurry mixture of TiO 2  and/or titanyl sulfate, which together forms an acid, and a base of an alkali metal hydroxide or alkali earth metal hydroxide, neutralizing a combined mixture of said acid and said base in a pH range from 4 to 10, forming an alumina titania precipitate, ageing said precipitate in mother liquor at the pH level of precipitation, washing the precipitate with water, and drying said precipitate at ambient or elevated temperature for 1-3 hours.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 99.0
- Lexical Diversity: 1.58333
- Patent Class: 252.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15820633', '14943580', '15869410', '14637786', '12150758']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8134528482776606
- 35 USC 102 Novelty (BERT): 0.5688903655738162
- Combined Prediction Score: 0.7889966000072762
- Mean Citation Score: 312.02503999999993
- Max Citation Score: 438.66028
- Similarity Product: 430.3070167270448

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