PATENT CLAIM ANALYSIS

Application Number: 16079197
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["210", "620000"]

Abstract:
The present invention provides a method for reducing or controlling wastewater and pollutant from emulsion polymerization resin production, comprising the following steps: (1) optimizing an emulsion polymerization reactor to lengthen a cleaning interval of the reactor so as to reduce the volumes of reactor cleaning wastewater and pollutant discharge; (2) demulsifying latex filter cleaning wastewater and removing a latex material so as to reduce the volume of the pollutant discharge; (3) demulsifying the highly concentrated reactor cleaning wastewater, then performing flotation recovery; (4) mixing graft polymerization wastewater and 1,3-diene polymerization wastewater, then performing demulsification; (5) mixing the demulsified latex wastewater and condensation and drying wastewater, then performing a coagulation and dissolved air flotation treatment; and (6) implementing a biological treatment process on the effluent from the coagulation and dissolved air flotation treatment to remove an organic material, nitrogen and phosphorus. The method of the present invention has the characteristics of reducing pollutants at a source, increasing product yield, saving resources, using different treatment according to wastewater property, and lowering treatment cost.

Claim (Index 15):
A method for reducing or controlling wastewater and pollutants from emulsion polymerization resin production, comprising the following step:\n (A) preventing or reducing the adhesion of polymers to reactor walls;\n wherein the step (A) is carried out by at least one of the means selected from the group consisting of:\n (1) adding a scraper mounted on a reactor stirring blade; \n (2) employing a gate impeller and/or propeller agitator which can promote the mass and heat transfer of the mixed liquid between the center and the walls of the reactor; and \n (3) installing a baffle near the reactor walls to prevent the mixed liquid from swirling as a whole; and \n \n further comprising at least one of the steps selected from the group consisting of: (B) subjecting wastewater discharged from latex filter cleaning to demulsifying and degumming treatments; (C) subjecting wastewater discharged from reactor cleaning to demulsifying and degumming treatments; and (D) mixing wastewater discharged from latex filter cleaning and wastewater discharged from reactor cleaning, followed by demulsifying and degumming treatments; and further comprising the step of: (E) mixing the wastewater obtained from step (B), (C) or (D) with wastewater from condensation and drying treatments, followed by coagulation and dissolved air flotation treatments.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 96.0
- Lexical Diversity: 2.10526
- Patent Class: 210.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16092033', '13437105', '11267277', '16064001', '11097176']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7762740182425952
- 35 USC 102 Novelty (BERT): 0.5054793079717965
- Combined Prediction Score: 0.7491945472155154
- Mean Citation Score: 205.061926
- Max Citation Score: 254.38676
- Similarity Product: 159.46798328573703

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

Dataset: test