Bis (2,4,4-trimethylpentyl) axit photphonic
Tên hóa học: Bis (2,4,4-trimethylpentyl) axit photphonic
CAS: 83411-71-6
Số EC: 280-445-7
Công thức: C16H35O2P
Mol. cái gì vậy.: 290.42
This chemical substance is Bis (2,4,4-trimethylpentyl) axit photphonic. Nó còn được biết đến rộng rãi như axit diisooctylphosphonic, và tên thương mại nổi tiếng nhất của nó là C272.
🧪 Basic physicochemical properties
Appearance and characteristics: It is usually a colorless to pale yellow liquid with a slight fruity aroma.
độ hòa tan: Hòa tan nhẹ trong nước (Về 12.5 mg / L), soluble in organic solvents such as chloroform and methanol.
⚙️ main purpose
Bis (2,4,4-trimethylpentyl) phosphonic acid is a high-performance acidic phosphonic acid extractant.
Tách kim loại: 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, erbi, Lutetium, vân vân.) from the leaching solution of southern ion type rare earth ores. Ví dụ, when purifying high-end rare earth products such as erbium oxide (Là), 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 (Y) and europium (eu) 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 (chẳng hạn như P204, 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 (chẳng hạn như 8-15 giây), greatly improving the production efficiency of rare earth purification.
Tổng thể, 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.
Chất chiết kim loại của chúng tôi như dưới đây, nếu bạn cần bất kỳ loại nào, xin vui lòng hỏi chúng tôi:
- P204 (D2EHPA) Điều này được sử dụng cho bước đầu tiên để loại bỏ tạp chất cho quặng niken đá ong.
- P507 chất chiết kim loại màu cho đồng, kẽm, coban-niken, cadimi, vàng bạc, kim loại nhóm bạch kim, đất hiếm và như vậy.
- DY272 Chất chiết tách niken coban, nó có thể lấy coban ra khỏi dung dịch coban niken, sau đó để lại niken nguyên chất.
- DY984N/DY5640 thuốc thử chiết dung môi đồng.
