PATENT CLAIM ANALYSIS

Application Number: 15773572
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["162", "029000"]

Abstract:
The invention relates to a method for optimising material recovery in a chemical pulping process. The method comprises treating of cellulosic raw material with cooking chemicals in a cooking step, where lignin is at least partly dissolved into cooking liquid phase and separated from fibres. The lignin is separated from the cooking liquid phase. The separated lignin is used for formation of a treatment composition comprising at the most 1 weight-% of aluminium. A bleaching liquid phase is treated with the treatment composition in order to remove organic humic substances from the bleaching liquid. Organic sludge is formed and it is used for energy production in a chemical recovery step.

Claim (Index 1):
A method for optimising material recovery in a chemical pulping process, the method comprising\n treating of cellulosic raw material with a liquid phase comprising cooking chemicals in a cooking step, where lignin and optionally other substances are at least partly dissolved into cooking liquid phase and separated from fibres, separating fibres from the said cooking liquid phase, which comprises used cooking chemicals and dissolved substances from wood, such as lignin, transferring fibres to a bleaching step, where the fibres are brought into contact with bleaching chemical(s), and separating the bleached fibres from the bleaching liquid phase, separating lignin from the cooking liquid phase, recovering the cooking chemicals from the cooking liquid phase in a chemical recovery step and circulating the recovered cooking chemicals back to the cooking step, characterised in\n using separated lignin for formation of a treatment composition comprising at the most 1 weight-% of aluminium, calculated on basis of the weight of dry lignin in the composition, \n treating the bleaching liquid phase with the treatment composition and removing of organic humic substances, preferably recalcitrant organic substances, from the bleaching liquid and forming organic sludge, \n using the organic sludge for energy production in the chemical recovery step.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 93.0
- Lexical Diversity: 1.84375
- Patent Class: 162.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15756926', '13512220', '12664425', '12664685', '11918527']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6845848190561461
- 35 USC 102 Novelty (BERT): 0.5044292625556823
- Combined Prediction Score: 0.6665692634060998
- Mean Citation Score: 198.92762
- Max Citation Score: 302.3137200000001
- Similarity Product: 215.06781004466785

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

Dataset: test