Preparation of afo structure aluminum phosphate molecular sieve membrane supported by porous alumina carrier
A technology of aluminum phosphate molecular sieve and porous alumina, which is applied in the direction of molecular sieve characteristic aluminum phosphate, molecular sieve and alkali-exchanged phosphate, phosphorus compound, etc. It can solve the problems of safety hazards, environmental pollution, heavy and complicated coating process, etc., and achieve easy operation , environmental friendliness, good gas separation and permeability effects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0027] Add 57.3 grams of 1-ethyl-3-methyl imidazolium bromide ionic liquid into a 100 ml beaker, heat up to 100°C, and add 1.15 grams of phosphoric acid with a mass concentration of 85% dropwise, P 2 o 5 : The molar ratio of the ionic liquid is 1: 60, stirred for 2 hours until uniform, then the reaction solution is poured into the reactor in which the δ-circular sheet-shaped alumina carrier has been placed in advance, and the carrier needs to be fully immersed in the reaction solution. The dosage ratio of support body and precursor reaction solution is 0.4 (cm 2 ·ml -1 surface area of the support), the reactor was heated to 140°C and kept for 48 hours, then the reactor was lowered to room temperature, the support was taken out, ultrasonically washed three times in deionized water, and washed with acetone. The washed carrier was dried in an oven at 110°C. Raise the temperature to 550° C. at a rate of 1 K / min in an air atmosphere, and keep it for 6 hours to remove organic m...
Embodiment 2
[0030] 57.3 grams of 1-ethyl-3-methyl imidazolium bromide ionic liquid was added in a 100 milliliter beaker, the temperature was raised to 100° C., and 2.30 grams of phosphoric acid was added dropwise with a mass concentration of 85%, P 2 o 5: The molar ratio of the ionic liquid is 1: 30, stirred for 2 hours until uniform, then the reaction solution is poured into the reactor in which the δ-circular flake alumina carrier is placed in advance, and the carrier needs to be completely immersed in the reaction solution. The dosage ratio of support body and precursor reaction solution is 0.6 (cm 2 ·ml -1 surface area of the support), the reactor was heated to 160°C and kept for 24 hours, then the reactor was lowered to room temperature, the support was taken out, ultrasonically washed three times in deionized water, and soaked in acetone for washing. The washed carrier was dried in an oven at 110°C. Raise the temperature to 550° C. at a rate of 1 K / min in an air atmosphere, and...
Embodiment 3
[0032] 57.3 grams of 1-ethyl-3-methyl imidazolium bromide ionic liquid was added in a 100 milliliter beaker, the temperature was raised to 90°C, and 3.45 grams of phosphoric acid with a mass concentration of 85% was added dropwise thereto, P 2 o 5 : The molar ratio of the ionic liquid is 1:20, stir for 2 hours until uniform, then pour the reaction solution into the reactor in which the 0-circular flake alumina carrier has been placed in advance, pay attention that the carrier must be completely immersed in the reaction solution, The dosage ratio of support body and precursor reaction solution is 0.8 (cm 2 ·ml -1 surface area of the support), the reactor was heated to 160°C and kept for 24 hours, then the reactor was lowered to room temperature, the support was taken out, ultrasonically washed three times in deionized water, and soaked in acetone for washing. The washed carrier was dried in an oven at 110°C. Raise the temperature to 550° C. at a rate of 1 K / min in an air a...
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More