PATENT CLAIM ANALYSIS

Application Number: 15746321
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["423", "021100"]

Abstract:
The present invention relates to the recovery of rare earths, scandium, niobium, tantalum, zirconium, hafnium, titanium, and the like from ores or concentrates containing fluorine. More specifically, the ores or concentrates are pretreated by carbochlorination to convert the rare earths and other metals into their chlorides and then subjected to dilute hydrochloric acid leaching to recover the valuable rare earths and other metals from the leachate. Niobium, tantalum, zirconium, hafnium, and titanium can be recovered as their chlorides or oxychlorides from the gaseous products of carbochlorination, or converted into their oxides while simultaneously regenerating chlorine.

Claim (Index 1):
A method of recovering a mineral from a fluorine-containing ore or concentrate, the method comprising:\n treating the fluorine-containing ore or concentrate by carbochlorination in the presence of a carbon-containing material and a fluorine capturing agent to form a mineral chloride and a treated ore or concentrate, wherein a partial pressure or activity of the fluorine capturing agent substantially prevents formation of rare earth fluorides throughout the treating step; contacting the treated ore or concentrate with a dilute HCl leach solution to solubilize the mineral chloride in the leach solution; and recovering the mineral, wherein the mineral is selected from the group consisting of a rare earth mineral, a scandium mineral, a niobium mineral, a tantalum mineral, a zirconium mineral, a hafnium mineral, a titanium mineral, and combinations thereof.

Metadata:
- Claim Count in Document: 54.0
- Percentile: 86.0
- Lexical Diversity: 1.81967
- Patent Class: 423.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13887027', '15503954', '12119964', '13858166', '12762503']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7680510871645947
- 35 USC 102 Novelty (BERT): 0.4913698500236242
- Combined Prediction Score: 0.7403829634504977
- Mean Citation Score: 216.91604
- Max Citation Score: 228.30927000000003
- Similarity Product: 167.60583233076096

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test