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 9):
The method for recovering scandium according to  claim 4 , wherein a neutralizing agent is added to the eluate to adjust a pH to a range of 5 to 6, a neutralized precipitate and a neutralized filtrate are generated by solid-liquid separation, and an acid is added to the neutralized precipitate to obtain a redissolved liquid in the neutralization step and\n the redissolved liquid obtained is subjected to solvent extraction as the post-neutralization eluate in the solvent extraction 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): 0.8129043584673407
- 35 USC 102 Novelty (BERT): 0.6084363292883689
- Combined Prediction Score: 0.7924575555494435
- Mean Citation Score: 443.036528
- Max Citation Score: 524.91
- Similarity Product: 492.3124355256557

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