PATENT CLAIM ANALYSIS

Application Number: 15997329
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-10
Patent Classification: ["075", "743000"]

Abstract:
A process for extraction of copper from an arsenical copper sulfide concentrate is provided. The process includes atmospheric oxidative leaching of a feed slurry including the arsenical copper sulfide concentrate and an acidic iron sulfate-containing leach solution, in the presence of oxygen, to produce a leach slurry including copper and arsenic dissolved into the leach solution. After dissolving the copper and arsenic, and before precipitating the arsenic dissolved during the oxidative leaching, pre-precipitation solids are recovered from the leach slurry to produce the pre-precipitation solids and a resulting pregnant leach solution including the copper and arsenic. Scorodite-containing seed is introduced to the pregnant leach solution including the copper and arsenic to induce precipitation of the arsenic dissolved during the oxidative leaching, as scorodite. Solids are recovered from the pregnant leach solution to produce the solids, including the scorodite, and an arsenic-reduced pregnant leach solution including the copper. The arsenic-reduced pregnant leach solution including the copper is subjected to solvent extraction for recovering copper and thereby producing a raffinate including sulfuric acid and iron sulfate, and at least a portion of the raffinate including the sulfuric acid and iron sulfate is recycled to the oxidative leaching.

Claim (Index 4):
The process according to  claim 1 , wherein recovering solids from the pregnant leach solution to produce the solids, including the scorodite, and the arsenic-reduced pregnant leach solution including the copper comprises subjecting the pregnant leach solution to liquid/solid separation.

Metadata:
- Claim Count in Document: 101.0
- Percentile: 94.0
- Lexical Diversity: 2.90278
- Patent Class: 75.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15222887', '15202084', '13503338', '15129687', '12991304']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8061572523741489
- 35 USC 102 Novelty (BERT): 0.6727029601011967
- Combined Prediction Score: 0.7928118231468537
- Mean Citation Score: 531.0751759999998
- Max Citation Score: 937.5944
- Similarity Product: 651.3701921057701

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