Separation of Lanthanum(III) by Selective Precipitation from Sulfuric Acid Solution Containing Iron(III)

نویسندگان

چکیده

철(III)과 란타넘(III)이 혼합된 황산용액에서 황산나트륨에 의한 란타넘 복염의 침전 및 분리를 조사했다. 복염 침전에 영향을 줄 수 있는 여러 요인 중 황산나트륨 란타넘(III)의 농도, 반응온도 시간, 그리고 철(III) 농도에 대해 용액 Na+, SO42- 이온 란타넘(III) 농도가 높을수록 희토류 침전률이 증가했고, 반응온도가 100°C까지 증가함에 따라 황산염 이온의 형성을 촉진해 증가했다. 또한 반응시간이 증가할수록 철(III)의 감소해 3시간 이후에는 거의 침전되지 않았고, 농도는 큰 미치지 않았다. 황산용액에 황산나트륨을 첨가하면 란타넘(III)을 선택적으로 침전시켜 분리할 있다.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Strong inorganic acid mists containing sulfuric acid.

Occupational exposure to strong inorganic acid mists containing sulfuric acid is specifically associated with laryngeal and lung cancer. Studies of one U.S. cohort of male workers in pickling operations in the steel industry found excesses of laryngeal cancer (approximately twofold) after adjustment for smoking and other potentially confounding variables (Steenland et al. 1988). A ten-year foll...

متن کامل

Dissolution of Magnesium from Serpentine Mineral in Sulfuric Acid Solution

As the volume of CO2, one of greenhouse gases linked to global warming, in the atmosphere increases, there has been an increasing interest in CO2 sequestration. Aqueous carbonation, which involves the extraction of Mg from serpentine minerals and the subsequent carbonation reaction with CO2 to form the geologically stable mineral MgCO3, has been proposed as a promising CO2 sequestration technol...

متن کامل

SUBSTANCE PROFILES Strong Inorganic Acid Mists Containing Sulfuric Acid CAS No. 7664-93-9 (Sulfuric Acid)

Strong inorganic acid mists containing sulfuric acid are known to be human carcinogens based on sufficient evidence of carcinogenicity from studies in humans that indicate a causal relationship between exposure to strong inorganic acid mists containing sulfuric acid and human cancer. Occupational exposures to strong inorganic acid mists containing sulfuric acid are specifically associated with ...

متن کامل

Evaluation of polymer inclusion membranes containing crown ethers for selective cesium separation from nuclear waste solution.

Transport behaviour of (137)Cs from nitric acid feed was investigated using cellulose triacetate plasticized polymer inclusion membrane (PIM) containing several crown ether carriers viz. di-benzo-18-crown-6 (DB18C6), di-benzo-21-crown-7 (DB21C7) and di-tert-butylbenzo-18-crown-6 (DTBB18C6). The PIM was prepared from cellulose triacetate (CTA) with various crown ethers and plasticizers. DTBB18C6...

متن کامل

Inhibition of Mild Steel Corrosion in Sulfuric Acid Solution by 2-Hydropyrimidine-2-Thione Derivative

The corrosion inhibition potential and efficacy of 2-hydropyrimidine-2-thione derivative on mildsteel in 0.5 M sulfuric acid solution was investigated using electrochemical polarization and FTIRspectroscopic techniques. In addition, docking studies were carried out as theoretical investigationof adsorption inhibitor on iron surface. The results of polarization studies indicate...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Resources Recycling

سال: 2021

ISSN: ['2765-3447', '2765-3439']

DOI: https://doi.org/10.7844/kirr.2021.30.2.31