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 ...

Examples

Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] Such as figure 1 As shown, a synthesis device for a pure silicon molecular sieve membrane, which includes a synthesis kettle 1 for crystallizing a carrier to be crystallized, and a deposition kettle 3 for depositing and coating a chip carrier 4 to be seeded by using the molecular sieve particles in the casting solution And the heating tank 5 that heats the casting solution to a certain temperature, wherein the synthesis tank 1 is connected to the deposition tank 3 through the deposition casting solution output pipeline and the deposition casting solution return pipeline, and the heating tank 5 is connected to the synthesis tank through the casting solution input pipeline 1 connection, the deposition casting solution output pipeline, the d...

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 ...

Examples

Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] Such as figure 1 As shown, a synthesis device for a pure silicon molecular sieve membrane, which includes a synthesis kettle 1 for crystallizing a carrier to be crystallized, and a deposition kettle 3 for depositing and coating a chip carrier 4 to be seeded by using the molecular sieve particles in the casting solution And the heating tank 5 that heats the casting solution to a certain temperature, wherein the synthesis tank 1 is connected to the deposition tank 3 through the deposition casting solution output pipeline and the deposition casting solution return pipeline, and the heating tank 5 is connected to the synthesis tank through the casting solution input pipeline 1 connection, the deposition casting solution output pipeline, the d...

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