PATENT CLAIM ANALYSIS

Application Number: 16096152
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-05
Patent Classification: ["562", "580000"]

Abstract:
The present invention concerns a method for purifying an aqueous lactic acid solution, obtained from a fermentation medium or from any other source previously cleared of solid substances and/or of biomass that may be present and ionic substances, characterised in that it comprises the two following steps: a. Concentration of the lactic acid solution until a concentration of between 85 and 95% is reached, preferably of between 90 and 95%, i.e. between 15 and 5% free water or preferably between 10 and 5% free water; b. Distillation in a multi-stage column comprising three areas and allowing the separation, in a single step, of the lactic acid, volatile compounds and the heaviest impurities.

Claim (Index 14):
A means for purifying an aqueous lactic acid solution according to the process of  claim 1 , wherein the lactic acid solution derived from the concentrating step (a) is fed into the column, above the reboiler (A), the purified lactic acid is extracted, in liquid form, laterally between the feed and the top of the column (B), whilst the water and the volatile impurities are eliminated at the top of the column (C) and the heaviest molecules leave at the bottom of the column (D) and/or loop to the reboiler.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 97.0
- Lexical Diversity: 1.66234
- Patent Class: 562.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['10582280', '14787117', '14773697', '11996246', '10130990']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7153902918733206
- 35 USC 102 Novelty (BERT): 0.4850406372007898
- Combined Prediction Score: 0.6923553264060676
- Mean Citation Score: 185.14863
- Max Citation Score: 200.1773
- Similarity Product: 155.2642822649956

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

Dataset: test