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Polymeric sorbents for reactive gases

A reactive gas, adsorbent technology for gas treatment, alkali metal compounds, greenhouse gas capture, etc.

Active Publication Date: 2018-08-03
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In general, impregnation has some disadvantages for making adsorbent materials

Method used

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  • Polymeric sorbents for reactive gases
  • Polymeric sorbents for reactive gases
  • Polymeric sorbents for reactive gases

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and 2

[0369] In a 5L round bottom flask, 78.2 g (481 mmol) of divinylbenzene (DVB) (80% by weight, technical grade), 29.4 g (300 mmol) of maleic anhydride (MA) and 2.15 g (8.88 mg mol) of benzoyl peroxide (BPO) was dissolved in 2153 g of ethyl acetate (EtOAc). The polymerizable composition had a percent solids of 4.9% by weight in EtOAc and contained a monomer mixture (58.1% by weight DVB, 27.3% by weight MA, and 14.5% by weight styrenic monomers) and 2% by weight BPO (based on monomer total weight). Nitrogen was bubbled through the polymerizable composition for 30 minutes. The flask was then capped with a rubber septum and placed in a 95°C sand bath. The polymerizable composition was heated at this elevated temperature for 18 hours. The white precipitate formed was isolated by vacuum filtration and washed with EtOAc. The solids were dispensed and placed into three 32 oz. jars. Each jar was then filled with 750 mL of EtOAc. The solid was allowed to stand in EtOAc for 1 h at ro...

Embodiment 3

[0379] 3.99 g (24.5 mmol) DVB (80 wt%, technical grade), 6.01 g (61.3 mmol) MA and 204 mg (843 micromol) BPO were dissolved in 9.96 g EtOAc in a 4 oz jar. The polymerizable composition had a percent solids of 50.1% by weight in EtOAc and contained a monomer mixture (31.9% by weight DVB, 60.1% by weight MA, and 8.0% by weight styrenic monomers) and 2% by weight BPO (monomer based total weight). Nitrogen was bubbled through the polymerizable composition for 10 minutes. The jar was then capped and placed in a 95°C sand bath. The polymerizable composition was heated at this elevated temperature for 18 hours. The white precipitate formed was isolated by vacuum filtration and washed with EtOAc. The solid was placed in a 4 oz jar and 100 mL of EtOAc was added to the jar. The solid was allowed to stand in EtOAc at room temperature for 1 hour. The solid was isolated again by vacuum filtration and washed with EtOAc. The solid was placed in a 4 oz jar and 100 mL of EtOAc was added....

Embodiment 4-6

[0385] In a 2L Parr stainless steel pressure vessel, 177.11 grams (1.09 moles) of DVB (80 wt%, technical grade), 240.05 grams (2.45 moles) of MA, and 4.17 grams (16.8 mmoles) of VAZO52 were dissolved in 625.92 grams EtOAc. The polymerizable composition had a percent solids of 40.0% by weight in EtOAc and contained a monomer mixture (34.0% by weight DVB, 57.5% by weight MA, and 8.5% by weight styrenic monomers) and 1% by weight VAZO 52 (based on monomer total weight). Nitrogen was bubbled through the polymerizable composition for 15 minutes. The pressure vessel was then sealed and placed in a 60°C heating mantle. The polymerizable composition was heated at this elevated temperature for 18 hours. The white precipitate formed was isolated by vacuum filtration and washed with EtOAc. The solid was placed in a 4 L Erlenmeyer flask, and 2.0 L of EtOAc was added to the flask. The solid was allowed to stand in EtOAc at room temperature for 1 hour. The solid was isolated again by ...

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Abstract

Polymeric sorbents for reactive gases are provided. More particularly, the polymeric sorbents are a reaction product of a divinyl benzene / maleic anhydride precursor polymeric material with a nitrogen-containing compound. The polymeric sorbent has nitrogen-containing groups that are covalently attached to the polymeric sorbent. The nitrogen-containing groups include a primary amino group, a secondary amino group, a tertiary amino group, or a combination thereof. Additionally, methods of adsorbing reactive gases on the polymeric sorbents and compositions resulting from the sorption of reactive gases on the polymeric sorbents are provided.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Patent Application 62 / 269626, filed December 18, 2015, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present invention provides polymeric adsorbents for reactive gases, methods for preparing polymeric adsorbents, methods for adsorbing reactive gases on said polymeric adsorbents, and methods for adsorbing reactive gases on said polymeric adsorbents. Reactive gas obtained composition. Background technique [0004] Typical adsorbent materials for capturing reactive gases such as acid gases and / or acid precursor gases are based on activated carbon scaffolds. Activated carbon scaffolds tend to be relatively inactive, and this inactivity makes it difficult to incorporate a large number of groups capable of adsorbing reactive gases into the activated carbon scaffold itself. For this reason, most attempts to pre...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01D53/02B01J20/28C08F212/08C08F212/36C08F222/06
CPCB01J20/264B01J20/265B01D53/02B01J20/28069C08F212/36C08F222/06B01D2253/202B01D2253/306B01D2253/311B01D2257/302B01D2257/304B01D2257/402B01J20/28057C08F8/32B01D2257/202B01D2257/204Y02C20/10Y02P20/151C08F212/08C08F222/08B01J20/28078B01D2253/308B01J20/28061B01J20/28071
Inventor M·S·文德兰德M·W·科贝
Owner 3M INNOVATIVE PROPERTIES CO
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