GRANULATED LOW-MODULUS ZEOLITES FOR EXTRACTION OF CO CATIONS

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود 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

Self-organization of extraframework cations in zeolites

Structural properties of a series of mordenite and ZSM-5 zeolites with different framework Al distribution modified with oxygenated extraframework Ga, Zn, Al, Cu and Fe complexes were investigated by means of periodic density functional theory calculations. It is demonstrated that mononuclear oxygenated and hydroxylated cationic metal complexes in high-silica zeolites tend to self-organize into...

متن کامل

Sieve Tests and Fineness Modulus of Granulated Sugar

Granulated Sugar A. R. N E E S 1 The users of sugar, especially the commercial users, are making increased demands for sugars of various types based on grain size. Some candy makers want coarse sugar because it handles bet ter in their kettles, bakers want fine sugar because it creams more easily in cake batter, and many housewives want an intermediate size which is neither coarse nor fine. If ...

متن کامل

New Force Field for Na Cations in Faujasite-Type Zeolites

We have developed and validated a new force field for cations in zeolites, which explicitly distinguishes Si and Al atoms, as well as different types of oxygens in the framework. Our new force field gives excellent agreement with experimental data on cation positions, site occupancies and vibrational frequencies. Energy minimizations show that Na cations in site I are not at the centers of hexa...

متن کامل

The removal of heavy metal cations by natural zeolites.

In this study, the adsorption behavior of natural (clinoptilolite) zeolites with respect to Co(2+), Cu(2+), Zn(2+), and Mn(2+) has been studied in order to consider its application to purity metal finishing wastewaters. The batch method has been employed, using metal concentrations in solution ranging from 100 to 400 mg/l. The percentage adsorption and distribution coefficients (K(d)) were dete...

متن کامل

Multinuclear gallium-oxide cations in high-silica zeolites.

Periodic DFT calculations of the stability of mononuclear and oligonuclear Ga-oxo cations in mordenite (MOR) have been carried out. Independent of the aluminium distribution in the zeolite framework the stability of cyclic Ga(2)O(2)(2+) ions is much higher than that of the isolated GaO(+) (gallyl) ions in a high-silica mordenite (Si/Al = 23) model. As to the location of such dimers, favorable t...

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: IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA

سال: 2020

ISSN: 2500-3070,0579-2991

DOI: 10.6060/ivkkt.20206306.6144