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MULTI-BRANCHED CATIONIC PHOSPHONIUM SALT and FORWARD OSMOSIS EXTRACT CONTAINING THE SAME

A forward osmosis and extraction solution technology is applied in the field of multi-branched cationic salts and forward osmosis extraction solutions containing the same, and can solve the problems of difficulty in removing magnetic nanoparticles, high energy consumption, and difficulty in redispersion of magnetic particles.

Inactive Publication Date: 2018-12-11
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, by introducing carbon dioxide to increase the solubility or osmotic pressure of the extract, an additional process of heating to 60°C or higher to remove carbon dioxide is required when recovering the extract, thus requiring higher energy consumption
In addition, although it is reported that magnetic nanoparticles are used as the extraction solution, and the extraction solution is recycled through magnetic separation and recovery, in fact, the agglomerated magnetic particles are not easy to redisperse, and it is also difficult to remove the magnetic nanoparticles.

Method used

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  • MULTI-BRANCHED CATIONIC PHOSPHONIUM SALT and FORWARD OSMOSIS EXTRACT CONTAINING THE SAME
  • MULTI-BRANCHED CATIONIC PHOSPHONIUM SALT and FORWARD OSMOSIS EXTRACT CONTAINING THE SAME
  • MULTI-BRANCHED CATIONIC PHOSPHONIUM SALT and FORWARD OSMOSIS EXTRACT CONTAINING THE SAME

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0060] 1,8-octanediyl-bis(tri-n-butyl ) bis(p-toluenesulfonate) (P2-TOS)

[0061] First, synthesize 1,8-octanediyl-bis(tri-n-butyl ) dibromide (1,8-octanediyl-bis (tri-n-butylphosphonium) dibromide) (hereinafter referred to as P2-Br):

[0062] Take a 500mL round bottom bottle, put 80g (0.4mol) of tributylphosphine (tributylphosphine) and 48.9g (0.18mol) of 1,8-dibromooctane (1,8-dibromooctane), and then add 150mL of anhydrous acetone, Stir at 40°C for 48 hours.

[0063] After the reaction was over, the above solution was slowly dropped into 1.5L of ether. The resulting white powder solid was filtered and washed several times with ether.

[0064] The washed white solid was dried to obtain 117 g of the product P2-Br.

[0065] Next, synthesize 1,8-octanediyl-bis(tri-n-butyl ) two (p-toluenesulfonate) (1,8-octanediyl-bis (tri-n-butylphosphonium) di (p-toluenesulfonate)) (hereinafter referred to as P2-TOS):

[0066] 2.67 g (3.7 mmol) of P2-Br and 1.57 g (8.1 mmol) of sodi...

preparation example 2

[0072]1,8-octanediyl-bis(tri-n-butyl ) Bis(2,4,6-trimethyl-benzenesulfonate) (P2-TMBS)

[0073] Synthesis of 1,8-octanediyl-bis(tri-n-butyl ) Di(2,4,6-trimethyl-benzenesulfonate) (1,8-octanediyl-bis(tri-n-butylphosphonium)di(2,4,6-trimethyl-benzenesulfonate)) (hereinafter referred to as P2 -TMBS):

[0074] Take P2-Br 10g (14.7mmol) and 2,4,6-trimethylbenzenesulfonate (sodium2,4,6-trimethyl-benzenesulfonate) (TMBS-Na) 6.8g (29.6mmol) dissolved in 40g of deionized water, stirred at room temperature for 24 hours.

[0075] After the reaction was completed, 20 mL of ethyl acetate was added for extraction.

[0076] The organic layer was concentrated to obtain about 12.4 g of the product P2-TMBS.

[0077] The product P2-TMBS was determined via NMR ( 1 H-NMR, 400MHz in D 2 O):0.8(t,18H,C H 3 CH 2 -), 1.09(m,4H,-CH 2 -), 1.1~1.5(m,32H,-CH 2 -), 1.9~2.0(t,16H,PCH 2 -), 2.12(s,6H,Ar-CH 3 ), 2.25(s,12H,Ar-CH 3 ), 6.88 (s, 4H, ArH). The chemical formula of the product P2-...

preparation example 3

[0080] Trimethylolpropane tris[(tri-n-butyl ) butyrate] three (p-toluenesulfonate) (P3-TOS)

[0081] First, synthesize trimethylolpropane tris(4-bromobutyrate) (trimethylolpropane tris(4-bromobutyrate)):

[0082] Take a 50mL round-bottomed reaction bottle, put 1g (8.3mmol) of trimethylolpropane (trimethylolpropane), dissolve it with 20mL of anhydrous tetrahydrofuran (tetrahydrofuran; THF), then slowly add 1.1g of NaH (60%), at room temperature After stirring with a magnet for 2 hours, 5 g (27 mmol) of 4-bromobutyryl chloride (4-bromobutyryl chloride) was added dropwise and reacted overnight at room temperature.

[0083] After the reaction was completed, THF was drained, 20 mL of diethyl ether was added, the solution was filtered to remove solids, the obtained filtrate was washed three times with 50 mL of water, and then the product was drained to obtain 3.4 g of the product trimethylolpropane tri(4- bromobutyrate).

[0084] Next, synthesize trimethylolpropane tri[(tri-n-bu...

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Abstract

A multi-branched cationic phosphonium salt and forward osmosis extract containing the same are provided. The multi-branched cationic phosphonium salt has a structure represented by Formula (I): {Z[P<+>(R<1>)(R<2>)(R<3>)]<n>}(X<->)<n>, wherein each of R<1>, R<2>, and R<3> is independently a linear or branched C1-C10 alkyl group, X<-> is an organic or inorganic anion, and Z has a structure represented by Formula (IIa), Formula (IIb), Formula (IIc) or Formula (IId), wherein a is an integer of 1-15. In Formulas (IIa) to (IId), Z is connected to to [P<+>(R<1>)(R<2>)(R<3>)] at the position marked byan asterisk (*), and n is an integer of 3-4.

Description

technical field [0001] The present disclosure relates to a multi-dendron cation Salt and forward osmosis extract containing same. Background technique [0002] With the increase of population, the rapid development of industry and the change of environment, the whole world is facing a serious shortage of fresh water resources. More and more countries have begun to develop seawater desalination technology to solve this global crisis. At present, seawater desalination technologies commonly used in the world include multi-stage flash (Multi-Stage flash, MSF), low-temperature multi-effect distillation (Multi-effect distillation, MED) and reverse osmosis (Reverse osmosis, RO), but these All technologies generally have the defects of high cost, high energy consumption, and low water production rate. [0003] In recent years, forward osmosis (Forward osmosis, FO) seawater desalination technology has received widespread attention. It utilizes the principle of forward osmosis and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/54C07C309/30C02F1/44
CPCC02F1/445C07C309/30C07F9/5407C07F9/5421Y02A20/131
Inventor 陈意君徐美玉何雅惠陈凯琪
Owner IND TECH RES INST
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