PATENT CLAIM ANALYSIS

Application Number: 15774841
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-11
Patent Classification: ["502", "401000"]

Abstract:
The present invention discloses the Synthesis and application of MOFs/natural polymers composite beads adsorbents. To overcome the drawback of MOFs, in an embodiment, both novel MOFs/sodium alginate (MOFs/SA) and MOFs/chitosan (MOFs/CS) composite beads were prepared and characterized. Each composite beads include one or more of MIL-101 (Cr), MIL-100 (Cr), MIL-53 (Al), MIL-100 (Al), NH 2 -MIL-101 (Al), UIO-66, ZIF-8, ZIF-68, ZIF-67, and ZIF-9-67 nanoparticles. Adsorption of anionic contaminants onto the two composite beads was investigated and compared with pristine sodium alginate beads (SA) and chitosan beads (CS). The novel MOFs/SA beads all exhibit much higher adsorption capacity than SA beads; the novel MOFs/CS beads all exhibit much higher adsorption capacity than CS beads, which indicates that MOFs played a key role in the adsorption of anionic contaminants. The porous composite beads disclosed herein and related methods and devices may be used in adsorption technologies.

Claim (Index 5):
A method for preparing the MOFs/natural polymers composite beads from  claim 1 , comprising of the steps of:\n (1) metallic salt compounds, organic ligands compounds, and solvent were blended, briefly sonicated, placed in a Teflon-lined autoclave bomb, and kept in an oven at 25-220\u00b0 C. for 3-96 hours without stirring to synthesize MOFs. After the synthesis and equilibration at room temperature, the synthesized crude MOFs solids were separated from water using a centrifuge (8000 rpm, 10 min) and washed with methanol or ethanol. The methanol or ethanol was separated from the solids by centrifugation, the solids were placed in ethanol or DMF, sonicated for 10 minutes, and kept at 70\u00b0 C. overnight. The resulting solids were separated by centrifugation, repeatedly washed with ethanol or DMF, and dried under vacuum at 80-140\u00b0 C. for 2 days to form MOFs nano-powders. The MOFs nano-powders were stored in a vacuum desiccator in the dark prior to further use; (2) the MOFs nano-powders from step (1) and natural polymers were added to a water or acetic acid solution and mixed together until blended to obtain a homogeneous MOFs-natural polymers solution; (3) preparing either a CaCl 2 -ethanol-H 2 O solution at pH=1-4 or Na 5 P 3 O 10 -ethanol-H 2 O solution; (4) the homogeneous MOFs-natural polymers solution from step (2) was dropped to the solution from step (3) to obtain the MOFs/natural polymers composite beads; and (5) the MOFs/natural polymers composite beads were suspended in cross-linking reaction medium containing glutaraldehyde at pH=0.5-2 and 10-40\u00b0 C. for 6-24 hours, or at pH=4-7 and 25-50\u00b0 C. for 6-24 hours.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 93.0
- Lexical Diversity: 1.94624
- Patent Class: 502.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15031871', '14600014', '14403277', '15935398', '13195378']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7298854715014887
- 35 USC 102 Novelty (BERT): 0.5123550021118635
- Combined Prediction Score: 0.7081324245625262
- Mean Citation Score: 222.291504
- Max Citation Score: 230.74345
- Similarity Product: 144.5867814897686

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