2-Ethylhexyl-2-Ethylhexylphosphat (P507/PC88A/Lonquest 801 )

Eegeschaften

♦ Aarste Staat

P507 extractant is typically a clear liquid at room temperature. It is often used in its pure form or

dissolved in an organic solvent, such as kerosene or other aliphatic diluents, for extraction purposes.

♦ Solubilitéit

P507 extractant is sparingly soluble in water but highly soluble in most organic solvents. This

property allows it to form a separate organic phase when mixed with aqueous solutions, facilitating the

extraction process.

 

♦ PH Dependence

The efficiency and selectivity of metal extraction using P507 extractant can be influenced by the

pH of the aqueous phase. The optimal pH range for extraction varies depending on the specific metal

ions and the desired separation conditions.

 

♦ Stabilitéit

P507 extractant is generally stable under typical operating conditions. It can withstand moderate

variations in temperature and pH without significant decomposition or loss of extraction performance.

Allerdéngs, extreme conditions or prolonged exposure to high temperatures and strong acids or bases

may degrade its effectiveness.

 

♦ Selektivitéit

P507 extractant exhibits good selectivity for certain metal ions, especially rare earth elements (REEs).

It can preferentially extract specific metal ions from a mixture of different metals, allowing for their

separation and purification.

♦ Regeneration

P507 extractant can be regenerated and reused in extraction processes. This is typically achieved by

stripping the extracted metal ions from the organic phase using an appropriate stripping agent or

adjusting the pH to release the metal complexes. The recovered P507 extractant can then be recycled

for further extraction cycles.

 

Uwendungen

♦ Rare Earth Element (REE) Extraktioun

P507 is widely used for the extraction and separation of rare earth elements. It offers excellent

selectivity for REEs, enabling their efficient extraction from aqueous solutions containing a mixture

of metals. The extracted REEs can be further processed and purified for various industrial applications.

 

♦ Uranium Extraktioun

P507 extractant has been employed in the extraction of uranium from ores and solutions. Et

demonstrates good affinity for uranium ions, allowing for their selective extraction and separation

from other metalions present in the system. This is particularly relevant in the nuclear fuel cycle

and uranium mining industry.

 

♦ Transition Metal Extraction

P507 extractant can also be used for the extraction of transition metals, such as nickel, kobolt, an

Koffer, from aqueous solutions. Its selectivity and efficiency in extracting these metals make it

valuable in various extraction and refining processes.

 

♦ Metal Recovery from Industrial Waste Streams

P507 extractant has been employed in the recovery and recycling of metals from industrial waste streams,

such as spent catalysts, electronic waste, and metal plating solutions. It enables the selective extraction

of valuable metals, allowing for their recovery and subsequent reuse.

 

♦ Hydrometallurgical Process Optimization

P507 extractant is often utilized in the optimization and development of hydrometallurgical processes.

Its performance, selectivity, and efficiency are evaluated in laboratory and pilot-scale studies to determine

the optimal conditions for metal extraction and separation.

 

Prozess

♦ Raw Material Virbereedung

The raw materials required for the synthesis of P507 extractant include 2,4,4-trimethylpentyl alcohol and

phosphorus trichloride (pcl 3). These materials are obtained and prepared according to the required

specifications and purity.

 

♦ Esterification

The synthesis of P507 extractant involves the esterification of 2,4,4-trimethylpentyl alcohol with phosphorus

trichlorid. In this step, the two reactants are combined in appropriate stoichiometric ratios and heated

under controlled conditions, typically using a reflux setup. The reaction is carried out in the presence of a

suitable acid acceptor, such as triethylamine or pyridine, to facilitate the formation of the desired ester

product.

 

♦ Acidification

After the esterification reaction is complete, the reaction mixture is carefully acidified to hydrolyze the

ester and convert it into the corresponding phosphinic acid. This step involves the addition of a strong

acid, such as hydrochloric acid or sulfuric acid, to the reaction mixture while maintaining suitable

temperature and stirring conditions.

 

♦ Reinigung

Once the acidification is complete, the crude P507 extractant is subjected to purification steps to

remove impurities and by-products. Purification methods may include techniques such as solvent

Extraktioun, Destillatioun, recrystallization, or chromatography. These steps help to isolate and obtain

the desired pure P507 extractant.

 

♦ Dréchent a Verpackungen

The purified P507 extractant is typically dried to remove any residual moisture. Dann, et ass

a gëeegent Behälter verpackt, wéi Fläschen oder Drums, suergt adäquate Versiegelung fir seng erhalen

Qualitéit a verhënneren Kontaminatioun. Den Extraktor gëtt dacks an enger dréchener a transportéierter Plaz gelagert a transportéiert

cool Ëmfeld fir seng Stabilitéit z'erhalen.

 

Inspektioun

♦ Inspektioun Prozess

1. Inkommende Inspektioun: D'Haaptrei Matière première,gi fir hiren Inhalt iwwerpréift, Ausgesinn

an aner Haapteigenschaften.

2. Ernährung Inspektioun: de Prinzip vun der Matière première fidderen ass éischt-an-éischt-eraus, an d'Erscheinung

vun der Haaptreikaterialie gëtt zoufälleg iwwerpréift no ob et eng grouss Ännerung an der ass

Späicherbedingunge virum Ernierung.

3. Batch sampling am Produktiounsprozess: Während der Produktioun Prozess, den Haaptindexen vun

all Charge vu Produkter: Inhalt an sauerem Wäert gëtt dräimol a verschiddenen Zäitperioden iwwerpréift.

4. Späichere Inspektioun: All Batch (4tonnen) gëtt virum Lagerung iwwerpréift.

5. Outbound Inspektioun: No der Quantitéit vun de Clienten gefuerdert, d'Produkter wäerten

sample an iwwerpréift.

6. Pre-Sendung Inspektioun: no Client Ufuerderunge, Drëtt Partei Inspektioun kann duerchgefouert ginn

eraus op d'Produkter virum Versand.

♦ Inspektiounsmodor

Kierperlech Erscheinung: Visuell Inspektioun

Puritéit Analyse:Gas Chromatographie (GC)

Sauer Wäert:Posteotiometresch Titration

Waasserdliveau:Feuchte Analyseren

Refraktiven Index:Refrakter

Dicht:Dicht Meter

Mënschen, Verpackungen, Liwwerung a Späichere

♦ Mënschen

All Pata vu Produkter solle vun engem Zertifikat vun der Konformitéit begleet ginn, dorënner: den Numm vum

Hiersteller, Den Numm vum Produkt, d'Produktiounskarchnummer, d'Netto Gewiicht pro Faass, d'Qualitéit

Niveau an d'Ëmsetzung vun der Norm Zuel.Gewiicht, Qualitéitsgrad an Ëmsetzungsstandard

Zuel.

♦ Verpakung

Packed in clean and dry plastic drums or IBC, net weight are 195±0.3kg(Plastic drums) or 950±0.5kg(IBC),

compressed and sealed after each batch.

♦ Transport

Dëst Produkt ass a Plastikstämm verpackt, während Transport an Luede / Ausluede, et soll virsiichteg sinn

a sanft erofsetzen, a verhënneren aus Impakt.

♦ Späichere

D'Lagerplaz soll cool sinn, dréchen a gelëfter. Maachen feierfest an rainproof.