PATENT CLAIM ANALYSIS

Application Number: 16303250
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-07
Patent Classification: ["568", "868000"]

Abstract:
The invention provides a process for the production of a high purity first diol, selected from the group consisting of C2 to C7 diols from a product stream comprising two or more C2 to C7 diols, said process comprising the steps of: (i) subjecting the product stream to distillation in a first distillation column to provide a bottoms stream comprising high boiling by-products and a top stream comprising a mixture comprising the two or more C2 to C7 diols; (ii) providing said mixture comprising the two or more C2 to C7 diols as a feed to a second distillation column; (iii) providing a feed comprising an extractant to the second distillation column above the mixture comprising the two or more C2 to C7 diols; (iv) operating the second distillation column at a temperature in the range of from 50 to 250° C. and a pressure in the range of from 0.1 to 400 kPa; (v) removing a stream comprising the first diol and the extractant as a bottoms stream from the second distillation column; and (vi) subjecting the stream comprising the first diol and the extractant to distillation in a third distillation column to provide a top stream comprising the first diol in high purity, wherein the extractant is selected from the group of C3 to C6 sugar alcohols and mixtures thereof.

Claim (Index 14):
The process according to  claim 1 , wherein a finishing section is added to the top of the third distillation column above the point at which the high purity first diol stream is obtained, in order to remove any type of light impurities/light degradation products formed in the separation process.

Metadata:
- Claim Count in Document: 4.0
- Percentile: 98.0
- Lexical Diversity: 3.05
- Patent Class: 568.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15761616', '15533815', '13431308', '15564438', '14950503']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7080453810156626
- 35 USC 102 Novelty (BERT): 0.6373785493066435
- Combined Prediction Score: 0.7009786978447606
- Mean Citation Score: 411.36125
- Max Citation Score: 580.29926
- Similarity Product: 532.288372482245

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

Dataset: test