PATENT CLAIM ANALYSIS

Application Number: 16061684
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["423", "021500"]

Abstract:
A method for recovering scandium is provided, which is capable of recovering highly-pure scandium from nickel oxide ore in a simple and efficient manner. The method for recovering scandium according to the present invention includes a scandium elution step S 2  of passing a solution containing scandium through an ion exchange resin to obtain an eluted liquid containing scandium from the ion exchange resin, a neutralization step S 3  of adding for neutralization a neutralizing agent to the eluted liquid, a solvent extraction step S 4  of solvent-extracting the neutralized eluted liquid using an amine-based extracting agent, and a scandium recovering step S 5  of obtaining a scandium precipitate from residual liquid separated by the solvent extraction, and then roasting the precipitate to obtain scandium oxide.

Claim (Index 2):
The method for recovering scandium according to  claim 1 , wherein scrubbing to mix a sulfuric acid solution having a concentration of 1.0 mol/L or more and 3.0 mol/L or less as a washing liquid with an extractant after solvent extraction and to separate scandium contained in the extractant into the washing liquid is performed in the solvent extraction step and\n a precipitate of scandium is obtained from the washing liquid after scrubbing along with the raffinate liquid in the scandium recovering step.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 94.0
- Lexical Diversity: 2.01515
- Patent Class: 423.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15526862', '16071920', '15557583', '15115030', '15546038']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8117139201232589
- 35 USC 102 Novelty (BERT): 0.6129947931733788
- Combined Prediction Score: 0.7918420074282709
- Mean Citation Score: 443.036528
- Max Citation Score: 524.91
- Similarity Product: 513.4808318352699

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test