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Metal-containing sorbents for nitrogen-containing compounds

A technology for adsorbents and metals, which is applied in the field of metal-containing adsorbents for nitrogen-containing compounds, and can solve problems such as difficulty in manufacturing adsorbents, high corrosion of inorganic acids, etc.

Active Publication Date: 2018-08-31
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high corrosivity of these impregnated mineral acids makes it difficult to fabricate these adsorbents

Method used

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  • Metal-containing sorbents for nitrogen-containing compounds
  • Metal-containing sorbents for nitrogen-containing compounds
  • Metal-containing sorbents for nitrogen-containing compounds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0121] Embodiment 1A is a metal-containing sorbent. The metal-containing sorbent comprises a) a precursor and b) a divalent metal incorporated into the precursor in an amount equal to at least 1% by weight, based on the total weight of the sorbent. The precursor comprises a reaction product comprising a mixture of 1) a porous siliceous material and 2) a surface treatment agent. Porous siliceous materials have mesopores. The surface treatment agent is added in an amount ranging from 0.1 to 4.5 mmol / g porous siliceous material. The surface treatment agent is a silane of formula (I), a disilazane of formula (II) or a mixture of a silane of formula (I) and a disilazane of formula (II).

[0122] R 1 -Si(R 2 ) 3-x (R 3 ) x

[0123] (I)

[0124] (R 4 ) 3 -Si-NH-Si(R 4 ) 3

[0125] (II)

[0126] In formula (I), R 1 is hydrocarbon or fluorohydrocarbon group, R 2 is a hydrolyzable group, R 3 is a non-hydrolyzable group, and x is an integer equal to 0, 1 or 2. In formu...

Embodiment approach 2

[0127] Embodiment 2A is the metal-containing sorbent of embodiment 1A, wherein the amount of divalent metal incorporated into the precursor ranges from 1% to 50% by weight, based on the total weight of the sorbent.

Embodiment approach 3

[0128] Embodiment 3A is the metal-containing sorbent of embodiment 1A or 2A, wherein the amount of divalent metal incorporated into the precursor ranges from 5% to 50% by weight, based on the total weight of the sorbent.

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Abstract

Metal-containing sorbent materials are provided, methods of making the metal-containing sorbent materials, methods of using the metal-containing sorbent materials, and metal complex-containing composite materials resulting from the sorption of basic, nitrogen-containing compounds on the metal-containing sorbent materials are provided. The sorbent materials are prepared by incorporating divalent metals into a precursor material that is formed by treating a porous siliceous material having mesopores with a silane or disilazane surface treatment agent. The metal-containing sorbent materials can be used to capture basic, nitrogen-containing compounds having a molecular weight no greater than 150 grams / mole.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Patent Application No. 62 / 269647, filed December 18, 2015, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] Described herein are metal-containing sorbent materials, methods of preparing metal-containing sorbent materials, methods of adsorbing basic nitrogen-containing compounds on metal-containing sorbent materials, and composite material obtained. Background technique [0004] Ammonia is a commonly used chemical and is found in many different environments. For example, ammonia exists at various manufacturing sites for widespread range of chemical reactions. [0005] Ammonia vapors pose significant health risks. For example, in the United States, OSHA has set an eight-hour exposure limit of 25 parts per million for ammonia vapor, and NIOSH has recently reduced IDLH (immediately threatening to life and health)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/10B01J20/22B01J20/28B01J20/32
CPCB01J20/223B01J20/3204B01J20/3257B01J20/3265B01D2253/25B01D2257/40B01J20/28083B01J20/3285B01J20/103B01D2257/406B01J20/0237B01J20/0244
Inventor M·S·文德兰德B·A·贝耶尔曼
Owner 3M INNOVATIVE PROPERTIES CO