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Preparation method of sheet type molecular sieve membrane

A technology of molecular sieve and seed sheet, which is applied in chemical instruments and methods, membrane technology, semipermeable membrane separation, etc., can solve the problem of low frequency of use of synthesis kettles, reduce production costs, simplify production processes, and increase the number of uses Effect

Inactive Publication Date: 2018-07-06
南京蓝恒环保设备有限公司
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the problem that the number of synthesis kettles used in the prior art is not much, to provide an economical sheet membrane preparation method, and to improve the synthesis cost of the membrane

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  • Preparation method of sheet type molecular sieve membrane

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Embodiment Construction

[0027] 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. The present invention adopts the following steps to synthesize a sheet-type membrane.

[0028] (1) α-alumina (d 50 =0.80 μm) chip carrier A was soaked in deionized water for 6 hours, dried in an oven at 60°C, heated to 400°C in an oxygen atmosphere with an oxygen flow rate of 10ml / min, and kept for 4 hours.

[0029] (2) The configuration contains amantadine, ethylenediamine, water, SiO 2 The specific steps are: dissolving amantadine in ethylenediamine and water, stirring and heating at 80-100°C until the solution becomes transparent, cooling the solution in ice water, adding ammonium hexafluorosilicate and The mixed solution of tetramethoxysilane (the molar ratio of the two is 1:3), and then continue to stir and heat at 80-100°C until the soluti...

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Abstract

The invention relates to a preparation method of a sheet type molecular sieve membrane. An existing sheet type membrane synthesis kettle is designed and improved, and molecular sieve particles crystallized from a membrane casting solution are deposited on a carrier in a membrane crystallization process, so that the carrier is crystallized; furthermore, the service life of the synthesis kettle is prolonged and the production cost of the membrane is reduced.

Description

technical field [0001] The invention relates to a method for preparing a membrane, in particular to a method for preparing a sheet molecular sieve membrane. Background technique [0002] Membrane separation is a new separation technology that appeared in the early 20th century and rose rapidly after the 1960s. Membrane separation technology has been widely used in food, medicine, biology, Environmental protection, chemical industry, metallurgy, energy, petroleum, water treatment, electronics, bionics and other fields have produced huge economic and social benefits, and have become one of the most important means in today's separation science. [0003] Among the many types of membranes, molecular sieve membranes, as a kind of ceramic membranes, have excellent competitiveness in gas separation, organic solvent dehydration and membrane reactors because of their stable crystal structure and synthetic pore size range. The DDR film is a crystalline film whose main component is s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/02B01D67/00B01D69/06
CPCB01D67/0039B01D67/0051B01D67/0069B01D69/06B01D71/027B01D71/028
Inventor 不公告发明人
Owner 南京蓝恒环保设备有限公司