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Amidoxime group-containing polymer as well as preparation method and application thereof

A polymer and aryl-based technology, applied in chemical instruments and methods, and other chemical processes, can solve problems such as low adsorption capacity, impact on profits, poor mechanical strength, etc., and achieve high adsorption capacity and high affinity

Active Publication Date: 2020-02-21
昆明先导新材料科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such adsorbent materials have many limitations, such as poor chemical and thermal stability, low adsorption capacity, and poor mechanical strength.
Therefore, it cannot be used in harsh metallurgical processes containing strong acid or strong alkali for a long time, which will increase the cost of a large number of consumables and affect profits

Method used

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  • Amidoxime group-containing polymer as well as preparation method and application thereof
  • Amidoxime group-containing polymer as well as preparation method and application thereof
  • Amidoxime group-containing polymer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A kind of polymer containing amidoxime group, the general formula of described polymer is as shown in the following formula:

[0050] [TiO 2 [CH 2 CHCNOHNH 2 ] m ] b [TiO 2 [CH 2 CHPh] r ] c

[0051] Wherein, m, b, r, and c are all positive integers, and the ratio of c to b is 0.00001-100.

[0052] The preparation method of the polymer that this embodiment contains amidoxime group may further comprise the steps:

[0053] (1) Preparation of polymer precursor by chemical modification: dissolve 150 g of titanium dioxide as a skeleton carrier in a solvent (99% xylene, 98% methanol and pure water, 3:5:7 by volume fraction, add 320.8 g in total), add 65g of acrylonitrile and 12g of styrene, stirred at 150-200r / min for 0.5h, mixed evenly, then added 1.2g of initiator azobisisobutyronitrile, entered the step-by-step temperature control stage to start the reaction, and reacted at 60°C for 3 hours, Then raise the temperature to 80°C for 2 hours, and finally raise the t...

Embodiment 2

[0062] A kind of polymer containing amidoxime group, the general formula of described polymer is as shown in the following formula:

[0063] [[CH 2 CHCH 3 ] f CHCH 2 CH 2 NHCH 2 CH 2 CH[CH 2 CHCNOHNH 2 ] n ] a [[CH 2 CHCH 3 ] f [CH 2 CHCNOHNH 2 ]m ] b

[0064] Wherein, n, m, a, and b represent positive integers respectively, and f represents an integer greater than 1000.

[0065] The preparation method of the polymer that this embodiment contains amidoxime group may further comprise the steps:

[0066] (1) Preparation of polymer precursor by chemical modification: Dissolve 46.8 g of polypropylene as a skeleton carrier in a solvent (99% ethylene glycol, 98% methanol and pure water, in a ratio of 2.5:4:7 by volume fraction, adding 232.9 g in total) In, add the polymer [CH 2 CH 2 CH 2 NHCH 2 CH 2 CH[CH 2 CHCN] w ] k (Polymer[CH 2 CH 2 CH 2 NHCH 2 CH 2 CH[CH 2 CHCN] w ] k Prepared by mixing acrylonitrile and diallylamine at a molar ratio of 1:1) ...

Embodiment 3

[0076] A kind of polymer containing amidoxime group, the general formula of described polymer is as shown in the following formula:

[0077] [[CH 2 CHPh] f CHCH 2 CH 2 NHCH 2 CH 2 CH[CH 2 CHCNOHNH 2 ] n ] a [[CH 2 CHPh] f

[0078] [CH 2 CHCNOHNH 2 ] m ] b

[0079] Wherein, n, m, a, and b represent positive integers respectively, and f represents an integer greater than 1000.

[0080] The preparation method of the polymer that this embodiment contains amidoxime group may further comprise the steps:

[0081] (1) Preparation of polymer precursor by chemical modification: Dissolve 32 g of polystyrene as a skeleton carrier in a solvent (99% xylene, 98% methanol and pure water, in a ratio of 2:2:3 by volume fraction, adding 212.3 g in total) , adding the polymer [CH 2 CH 2 CH 2 NHCH 2 CH 2 CH[CH 2 CHCN] w ] k (Polymer[CH 2 CH 2 CH 2 NHCH 2 CH 2 CH[CH 2 CHCN] w ] k It is prepared by mixing acrylonitrile and diallylamine in a molar ratio of 1:1) and ...

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Abstract

The invention relates to an amidoxime group-containing polymer. The general formula of the amidoxime group-containing polymer is shown in the specification,[RCHCH2CH2NHCH2CH2CH[CH2CHNOHNH2]n]a[R[CH2CHNOHNH2]m]b[RV]c, wherein n, m and b represent positive integers respectively, a and c represent 0 or positive integers respectively, and the ratio of c to a + b is 0-100; wherein R is selected from hydrogen, C1-C22 alkyl, cross-linked or chain-like R1xTi (OR2) yOz, a polymer[CH2CHR1]f or a polymer[VCHCHR1]f; wherein x and y respectively represent integers from 0 to 2, z represents an integer from1 to 4, and f represents an integer greater than 1000; wherein R1 is selected from a C1-C6 alkyl group, R2 is selected from a C1-C12 alkyl group, and R1 is selected from a C1-C22 alkyl group, a C2-C22alkylene group, an aryl group or a substituted aryl group; V is selected from a C2-C12 alkylene group, a substituted aryl group, a polymer[CH2CHPh]r or a polymer[R2CHCHCHPh]r; wherein r represents apositive integer, and R2 is selected from C2-C12 alkenyl, aryl or substituted aryl. The amidoxime group-containing polymer can be used as an adsorption material, has extremely high affinity to scattered metals gallium and germanium, can effectively remove / capture valuable elements in the process and sewage, and can be repeatedly used through eluent after adsorption.

Description

technical field [0001] The invention relates to an amidoxime group-containing polymer, a preparation method and application thereof, and belongs to the technical field of adsorption materials. Background technique [0002] Scattered metals (scattered metals) is referred to as SM, which is mainly for comprehensive recovery and regeneration from the by-products, leftovers and waste products produced in the production process of metallurgy, chemical industry, thermal power generation and other industries. Scattered metals have extremely important uses and are an important part of contemporary high-tech new materials. A series of compound semiconductors, electro-optical materials, special alloys, new functional materials and organometallic compounds composed of scattered metals and non-ferrous metals all need to use rare metals with unique properties. Although the amount is not large, it is very important. No. Therefore, it is widely used in contemporary communication technolo...

Claims

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Application Information

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IPC IPC(8): C08F220/44C08F220/48C08F8/32B01J20/26B01J20/30
CPCB01J20/265B01J2220/4812C08F8/32C08F220/44C08F220/48
Inventor 杨亮亮李舒琦刘大卫谢龙朱刘
Owner 昆明先导新材料科技有限责任公司
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