Synthesis method of pure silicon molecular sieve membrane

Abstract

The invention relates to a synthesis method of a pure silicon molecular sieve membrane. The prior art is improved, membrane casting liquid in the crystallization process is circulated to outside a synthesis kettle, the volume of the membrane casting liquid entering a precipitating kettle and the membrane casting liquid in the corresponding time periods are controlled through reasonable arrangementof a valve, and the seed crystal coating effect is the best on the basis that the crystallization effect is ensured.

Description

technical field

[0001] The invention relates to a method for preparing a membrane, in particular to a method for preparing a pure silicon molecular sieve membrane. Background technique

[0002] Membrane separation technology is a new separation technology that emerged rapidly after the 1960s. It has the functions of separation, concentration, purification and refinement, as well as high efficiency, energy saving, environmental protection, molecular level filtration and simple filtration process, easy to control, etc. Features, which have been widely used in many fields at present, have produced huge economic and social benefits, and have become one of the most important means in today's separation science. As a kind of inorganic membrane, molecular sieve membrane has better thermal and chemical stability than organic membrane, and has great application potential in the fields of organic solvent / water separation and gas separation, while DD3R molecular sieve membrane is more ...

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