Y type Zeolite Molecular Sieve

Y type Zeolite Molecular Sieve

Products:
A Y-type molecular sieve is a micropore crystalline material with a skeleton structure. Silicon oxide and aluminum oxide tetrahedrons constitute the basic structural units of the skeleton. With the help of Si-O or Al-O bonds, these tetrahedrons form four-membered ring, six-membered ring, and eight-membered ring structural units. Following that, a β cage is generated as the secondary structural units are pieced together. Eight β cages are arrayed according to the diamond crystal pattern. Every carbon atom in the diamond lattice structure is replaced by a β cage. The adjacent β cages are connected with each other via the six-membered ring and the Si-O-Si (AI) bonds. Thus, the faujasite cages come into being, and mutually connected via the twelve-membered ring in three crystal axis directions. Finally, a unit cell is formed. The twelve-membered ring is a main window of the faujasite cage with the aperture being around 0.74nm.

Technical specifications of the NaY-type molecular sieve:

Technical specifications of the Y-type rare earth molecular sieve:

Product classification: 

Y-type molecular sieve includes NaY-type molecular sieves and NaY-type modified products: Y(NH4Y), Y(HY), Y(USY), Y(ReY), et al.

Relationship between NaY-type molecular sieves and other relevant products: 

1.      NaY is synthesized by alumina source, silicon source and guiding agent under certain process conditions;

2.      Na+ in NaY is exchanged with ammonium+ in Nh4Cl to obtain Y (NH4Y);

3.      Through high-temperature roasting of NH4Y, Y (HY) is obtained;

4.      Through high-temperature hydrothermal processing of Y (HY), Y (USY) is obtained;

5.     H+ in Y (HY) is exchanged with rare earth to obtain Y (ReY). 

Applications: 

1.      Applicable to preparation of fluid catalytic cracking (FCC) catalyst;

2.      Applicable to preparation of deep catalytic cracking (DCC) catalyst;

3.      Applicable to preparation of hydrocracking (HC) catalyst;

4.      Applicable to preparation of efficient absorption and separation cleaning and drying agent.

NaY molecular sieve

Product features: NaY molecular sieve is a Na form of the Y-type crystal structure molecular sieve and an aluminosilicate of alkali metal. With a unique three-dimensional porous structure, it has found wide applications in the field of absorption, separation, catalysis and ion exchange.

Functions: Applicable to preparation of the FCC active components, dewatering and drying, desulfuration of hydrogens, catalyst carrier, and gas purification in the industry of chemistry, metallurgy, electronics and nuclear.