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Dipping solution and preparing method thereof

An impregnating solution and solution technology, applied in the field of impregnating solution and its preparation, can solve the problems of increasing energy consumption and equipment investment, increasing the cost of catalyst manufacturing, increasing operation steps, etc., achieving the simple and easy preparation method, saving time and simplifying operation The effect of steps

Inactive Publication Date: 2005-10-05
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of the solution in the two patents uses heating at 90°C to 120°C to dissolve the metal components, and the dissolution time ranges from 0.5 hours to 6.0 hours. Due to the use of additional heating, not only energy consumption and equipment investment are increased, but also The operation steps are omitted, and the operation is cumbersome, and the preparation time is long, which increases the manufacturing cost of the catalyst

Method used

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  • Dipping solution and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Weigh 90g of water-soluble industrial grade ammonium heptamolybdate (the solubility of this ammonium molybdate in water is 50.0g / 100g water), add 150ml deionized water, stir to make the ammonium molybdate completely dissolve, then add 60.0g lemon acid, fully dissolved, then 180g of industrial-grade ammonium metatungstate and 140g of nickel nitrate were added to 150ml of deionized water, stirred and dissolved, then the two different solutions were mixed, and the volume of the solution was adjusted to 500ml with deionized water to obtain Solution A.

Embodiment 2

[0017] Compared with Example 1, the water-soluble industrial grade ammonium heptamolybdate add-on is changed into 180g, the ammonium metatungstate add-on is changed into 270.0g, and the add-on of citric acid is changed into 90.0g accordingly, all the other and embodiment 1 is the same, that is, the cost example, and solution B is obtained.

Embodiment 3

[0019] Compared with Example 1, the addition of ammonium metatungstate was changed to 90.0g, and the addition of citric acid was changed to 30.0g accordingly, and the rest were the same as in Example 1, that is, the cost example, to obtain solution C.

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Abstract

An impregnating solution for preparing hydrocatalyst contains at least two metal components in VIB family and at least one metal component in VIII family. It is prepared through dissolving a water-soluble Mo-contained compound in water, and adding organic carboxylic acid, the compound containing metal in VIB family and the salt containing metal in VIII family. Its advantages are high stability and no irritative volatile component.

Description

technical field [0001] The present invention relates to an impregnation solution and its preparation method, in particular to the impregnation solution used in the preparation of hydrorefining and hydrotreating catalysts and its preparation method, especially the tungsten, molybdenum, nickel (or cobalt) mixed impregnation solution and its preparation method. The solution of the invention can be used for the preparation of hydrogenation catalysts for petroleum fractions and heavy oils, especially for the preparation of paraffin hydrofinishing and residual oil hydrogenation catalysts. Background technique [0002] As we all know, the hydrorefining and hydrotreating catalysts currently used in industry are usually based on inorganic oxides such as alumina as a carrier, loaded with hydrogenation active metals (generally VIB group and VIII group elements, such as Mo, W and Co, Ni, etc.) prepared. Impregnation method is a commonly used loading method for hydrogenation active com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K13/00
Inventor 袁胜华苏晓波张皓付泽民
Owner CHINA PETROLEUM & CHEM CORP
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