مكرر (2,4,4-تريميثيل بنتيل) حمض الفوسفونيك
الاسم الكيميائي: مكرر (2,4,4-تريميثيل بنتيل) حمض الفوسفونيك
CAS: 83411-71-6
رقم المفوضية الأوروبية: 280-445-7
معادلة: C16H35O2P
مول. بالوزن.: 290.42
This chemical substance is Bis (2,4,4-تريميثيل بنتيل) حمض الفوسفونيك. It is also widely known as diisooctylphosphonic acid, and its most famous trade name is C272.
🧪 Basic physicochemical properties
Appearance and characteristics: It is usually a colorless to pale yellow liquid with a slight fruity aroma.
الذوبان: قليل الذوبان في الماء (حول 12.5 ملغم / لتر), soluble in organic solvents such as chloroform and methanol.
⚙️ main purpose
مكرر (2,4,4-تريميثيل بنتيل) phosphonic acid is a high-performance acidic phosphonic acid extractant.
فصل المعادن: Originally developed for the separation of nickel and cobalt, it is widely used in wet metallurgy.
Rare earth extraction: Due to its excellent extraction performance, it is also widely used for the separation and purification of rare earth elements.
Other applications: It can also be used to extract indium from sulfate solutions or as a surface passivation ligand for the synthesis of nanocrystals.
C272 plays a core role as an efficient acidic extractant in rare earth separation. It is mainly used to selectively extract and separate specific rare earth elements from complex ore leaching solutions, mixed rare earth solutions, or waste materials.
Its application and role in the field of rare earth separation are mainly reflected in the following aspects:
🎯 1. Core function: Highly selective extraction and separation
The molecular structure of C272 contains branched alkyl groups with significant steric hindrance, which enables it to exhibit excellent high selectivity when facing rare earth elements with extremely similar chemical properties.
Heavy rare earth separation: It is commonly used to enrich and separate heavy rare earth elements (such as yttrium, الإربيوم, اللوتيتيوم, إلخ.) from the leaching solution of southern ion type rare earth ores. على سبيل المثال, when purifying high-end rare earth products such as erbium oxide (يكون), C272 combined with multi-stage countercurrent extraction process can obtain products with a purity of over 99.9%.
Specific element pair separation: It performs well in separating certain difficult to separate adjacent rare earth element pairs (such as Lu/Yb) and separating yttrium (ي) and europium (الاتحاد الأوروبي) from mixed rare earths.
⚙️ 2. Technological advantages: low acidity extraction and easy reverse extraction
Compared to traditional rare earth extractants, C272 has significant process advantages:
Low balanced acidity: It can extract metal ions at lower acidity levels, which not only reduces acid consumption and production costs, but also mitigates equipment corrosion and environmental impact.
Reverse extraction is easier: the organic phase loaded with rare earth elements only requires a lower concentration of acid to easily “wash” the rare earth elements (i.e. reverse extraction), greatly improving the recovery efficiency and recycling rate of metal ions.
🚀 3. Advanced Applications: Collaborative Extraction and New Technologies
In order to overcome the limitations of a single extractant, C272 often appears in the form of a “combination punch” in practical industry and scientific research:
Collaborative extraction system: Mixing C272 with other extractants (مثل ص204, P507 etc.) can produce a synergistic effect of “1+1>2”. This binary or multicomponent system can further improve separation efficiency, increase extraction capacity, and effectively eliminate the emulsification phenomenon that is prone to occur when using C272 alone.
Combined with advanced equipment: In high-efficiency mass transfer equipment such as centrifugal extraction, C272 can quickly form stable complexes with rare earth ions, reaching extraction equilibrium in a very short time (مثل 8-15 ثواني), greatly improving the production efficiency of rare earth purification.
إجمالي, C272 has become an indispensable key chemical reagent in modern wet metallurgy and rare earth separation and purification processes due to its high selectivity, easy reverse extraction, and good chemical stability.
مستخلصات المعادن لدينا على النحو التالي, إذا كنت بحاجة إلى أي نوع, اسألنا من فضلك:
- ص 204 (D2EHPA) يستخدم هذا للخطوة الأولى لإزالة الشوائب لخام النيكل اللاتريت.
- P507 مستخرج المعادن غير الحديدية للنحاس, الزنك, النيكل والكوبالت, الكادميوم, ذهب فضه, معادن المجموعة البلاتينية, الأتربة النادرة وما إلى ذلك.
- DY272 مستخلص فصل الكوبالت النيكل, يمكن أن يأخذ الكوبالت من محلول الكوبالت النيكل, ثم اترك النيكل النقي.
- DY984N/DY5640 كاشف استخلاص مذيبات النحاس.
