PATENT CLAIM ANALYSIS

Application Number: 15753093
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-08
Patent Classification: ["423", "067000"]

Abstract:
An object of the disclosure is to provide a method of efficiently producing a highly-pure vanadium electrolytic solution from a combustion residue that is discharged from facilities such as refineries and power plants and contains uncombusted carbon. The method of producing a vanadium electrolytic solution for redox flow cell (RFB) includes a vanadium eluate generation step of obtaining a vanadium eluate in which vanadium is dissolved. The vanadium is contained in a combustion residue obtained after combustion of a fossil fuel. The method further includes a precipitation step of mixing a sulfide precipitant into the vanadium eluate to precipitate a solid substance of precipitate in a reduction state and a wet oxidation step including a process of adding dilute sulfuric acid to the solid substance separated from the solution to generate a vanadium sulfate solution.

Claim (Index 41):
The method of producing a vanadium electrolytic solution as recited in  claim 35 , further comprising\n an adjusted electrolyte generation step of electrolytically reducing the vanadium sulfate solution obtained in the vanadium sulfate solution generation step to generate the vanadium electrolytic solution which contains trivalent vanadium ions and tetravalent vanadium ions; wherein the vanadium-dissolved liquid generation step comprises:\n a combustion step including a process of alkali roasting of the combustion residue; and \n a dissolution step of dissolving a precipitate into water to obtain the vanadium-dissolved liquid, wherein the precipitate is obtained by performing a crystallization process for a mixture of an ammonium chloride aqueous solution and a mixed solution that is obtained by mixing a roasted residue obtained in the combustion step and water; and \n the sulfide precipitant comprises one or more selected from a group of hydrogen sulfide, sodium sulfide, ammonium sulfide, sodium hydrosulfide, and sodium polysulfide.

Metadata:
- Claim Count in Document: 59.0
- Percentile: 88.0
- Lexical Diversity: 1.88
- Patent Class: 423.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13503184', '15069877', '15863193', '10000127', '10226751']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7777630100744716
- 35 USC 102 Novelty (BERT): 0.4967839277096796
- Combined Prediction Score: 0.7496651018379924
- Mean Citation Score: 252.056894
- Max Citation Score: 277.92355
- Similarity Product: 237.89513916337188

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