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Method for material additive manufacturing of an inorganic filter support from a hot-melt composition and resulting membrane

A support, inorganic porous technology, used in chemical instruments and methods, additive processing, manufacturing tools, etc., can solve difficult, expensive, time-consuming and other problems

Pending Publication Date: 2021-07-23
TECH AVANCEES & MEMBRANES INDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this technique is that the flowability of the powder needs to be adjusted for perfect (smooth) flow during the deposition of the powder bed
In addition, this technique requires the removal and possibly recycling of unconsolidated powder, which can be tricky, time-consuming and expensive, especially when said unconsolidated powder is present in the non-linear When in the channel

Method used

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  • Method for material additive manufacturing of an inorganic filter support from a hot-melt composition and resulting membrane
  • Method for material additive manufacturing of an inorganic filter support from a hot-melt composition and resulting membrane
  • Method for material additive manufacturing of an inorganic filter support from a hot-melt composition and resulting membrane

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no. 1 example

[0118] According to a first embodiment, the method according to the invention allows the production of a single steerable three-dimensional raw structure 2 and thus a single monolithic porous support 1 after sintering at a time.

[0119] according to Figure 17 In the second embodiment shown, the method described above allows the simultaneous fabrication of two independent (i.e., not joined together) steerable 3D primitive structures 2 1 and 2 2 , designed to undergo a sintering step to form two monolithic porous supports 1 1 and 1 2 . For this purpose, the machine includes two flow orifices 8 1 and 8 2 : Then, each independently steerable 3D primitive structure 2 1 and 2 2 by stacking 8 separate flow orifices from each 1 and 8 2 The strips are prepared in plies made separately. exist Figure 17 In the example shown, two steerable 3D primitive structures2 1 and 2 2 have the same shape and size, and flow through the orifice 8 1 and 8 2 The same displacement confi...

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Abstract

The invention relates to a method for manufacturing at least one porous single-piece inorganic support (1) having a porosity of between 10% and 60% and an average pore diameter ranging from 0.5 [Mu]m to 50 [Mu]m, using a 3D printer-type machine (I) designed to build following a digital 3D model, and a manipulable three-dimensional green structure (2) designed to form, after sintering, the porous single-piece inorganic support(s) (1).

Description

technical field [0001] The present invention relates to a method of manufacturing a monolithic (monolithic, single-piece) inorganic porous support, which can be used in particular for a filtration membrane (filtration membrane, filtration membrane), especially a tangential filtration membrane . More specifically, the porous support is prepared by the technique of adding materials. Background technique [0002] The filter membrane constitutes a selective barrier and allows certain components of the medium to be treated to pass or stop under the action of the transfer force. The passage or stop of these components can be caused by their size relative to the size of the pores of the membrane, thereby causing the membrane to behave like a filter. Depending on the size of the pores, these techniques are known as microfiltration, ultrafiltration or nanofiltration. [0003] The membrane consists of a porous support on which one or more separation layers are deposited. Usually, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/03C04B35/101C04B35/111C04B35/46C04B35/48C04B35/565C04B35/573C04B35/632C04B38/00
CPCC04B35/565C04B35/46C04B35/111C04B2235/6026C04B2235/77C04B35/622C04B35/486C04B35/04C04B2235/5445C04B2235/5436C04B2235/5427C04B35/634C04B35/58C04B35/56B01D63/066C04B2111/00181C04B38/0074B29D99/005B33Y80/00B29C64/106B01D67/00045B01D69/108B28B1/001B33Y10/00B33Y70/00B01D67/0074
Inventor P·莱斯科舍J·安奎蒂尔
Owner TECH AVANCEES & MEMBRANES INDS