Aluminum phosphate sol and preparation method thereof

A technology of aluminum phosphate sol and phosphate, which is applied in chemical instruments and methods, phosphorus compounds, petroleum industry, etc., can solve the problems of equipment corrosion environment, environmental pollution, pollution, etc., and achieve improved peptization depth, improved wear resistance, The effect of decontamination

Active Publication Date: 2017-10-31
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the phosphorus-containing aluminum sol provided by CN1417296A does not contain chlorine, it still inevitably contains a large amount of chlorine in the slurry before spray-drying and after spray-drying due to being mixed with the chlorine-containing aluminum sol during its pre

Method used

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  • Aluminum phosphate sol and preparation method thereof

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Effect test

Embodiment 1

[0030]Add 2540 grams of deionized water, 1156 grams of pseudo-boehmite, 27 grams of ammonium dihydrogen citrate reagent in the reaction kettle, stir for 15 minutes, let stand for 4 hours, then stir, add 223 grams of concentrated phosphoric acid, stir for 20 minutes, The obtained sample is recorded as A1, and its Al 2 o 3 is 22.3% by weight, ammonium dihydrogen citrate is 0.6% by weight, and phosphorus is 1.6% by weight.

Embodiment 2

[0032] Add 2530 grams of deionized water, 882 grams of pseudoboehmite, and 712 grams of magnesium acetate reagent in the reaction kettle, stir for 25 minutes, let stand for 20 hours, then stir and add 846 grams of diammonium hydrogen phosphate, stir for 10 minutes and then add 2185 grams of concentrated phosphoric acid was stirred for 30 minutes, and the sample was recorded as A2, and its Al 2 o 3 is 10.6% by weight, magnesium acetate is 9.95% by weight, and phosphorus is 13% by weight.

Embodiment 3

[0034] Add 2530 grams of deionized water, 5083 grams of pseudoboehmite, and 600 grams of ammonium acetate reagent in the reaction kettle, stir for 30 minutes, stand still for 13 hours, then stir, add 1087 grams of ammonium phosphate and 2672 grams of concentrated phosphoric acid, and stir for 20 minutes , that is, the sample is recorded as A3, and its Al 2 o 3 is 35.4% by weight, ammonium acetate is 5.0% by weight, and phosphorus is 8.5% by weight.

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Abstract

The invention relates to aluminum phosphate sol and a preparation method thereof. The aluminum phosphate sol contains the following components in percentage by mass: 10%-50% of Al2O3, 0.5%-10% of soluble salt with an anion of C6H7O7<-> or CH2COO<-> or HCOO<-> and 1.5%-15% of P. The preparation method comprises the following steps: (1) stirring pseudo-boehmite, the soluble salt with the anion of C6H7O7<-> or CH2COO<-> or HCOO<-> and deionized water, and standing; and (2) uniformly stirring the slurry obtained in the step (1), and adding phosphoric acid or a mixture of phosphoric acid and phosphate. The aluminum phosphate sol is used for preparing a catalyst, so that the environmental pollution caused by chloride ions and nitrate ion is avoided; the aluminum phosphate sol can be directly used as a bonder of a catalytic cracking catalyst; and the heating is not required during the preparation, a preparation process is simple, high in phosphorus-aluminum ratio, the range is adjustable, and the industrial production is easily realized.

Description

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Claims

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Application Information

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Owner PETROCHINA CO LTD
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