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Proppant for petrochemical reactors and preparation method thereof

A magnesia-aluminum spinel, petrochemical technology, applied in chemical instruments and methods, chemical/physical processes, chemical/physical/physical-chemical processes, etc., can solve the problems of increasing project cost, large proportion, and high comprehensive energy consumption. To achieve the effect of reducing the load and base load, reducing the firing time and reducing the project cost

Active Publication Date: 2012-11-21
PINJIANG JIANGHUA ENVIRONMENTAL PROTECTION EQUIP FILLING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main disadvantages are as follows: 1) Industrial α-Al needs to be added to the formula 2 o 3 Powder, whose proportion is 30-85%, consumes a large amount of industrial alumina, high comprehensive energy consumption and high cost; 2) Large specific gravity and high bulk density, generally 1.5-2.0 tons / m 3 , the result is a packing of about 100m in a large reactor in the petrochemical industry 3 3) The compressive strength is small. In large-scale petrochemical reactors, the general pressure resistance is about 5.0-20.0Mpa, and the proppant strength is required to be large enough. Long-term construction, but the existing proppant can not meet the pressure resistance demand

Method used

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  • Proppant for petrochemical reactors and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Proppants were prepared with the following component ratios:

[0051] MgO (magnesium oxide): 20%;

[0052] Al 2 o 3 (Al2O3): 8%;

[0053] SiO 2 (Silicon dioxide): 65%;

[0054] CaO (calcium oxide) + Na 2 O(sodium oxide)+K 2 O (potassium oxide): 6.8%; among them, CaO (calcium oxide) is 1.9%, Na 2 O (sodium oxide) is 2.1%, K 2 O (potassium oxide) was 2.8%.

[0055] Fe 2 o 3 (Fe2O3): 0.2%.

[0056] The preparation method is as follows:

[0057] 1) Get 50kg kaolin, 220kg high magnesium kaolin and 30kg feldspar powder as raw materials, grind to 350 mesh through a ball mill and filter for subsequent use;

[0058] 2) After the raw materials that have been ground in step 1) are processed by a conventional iron removal process, the raw materials are mixed according to the above-mentioned component ratio requirements, and then the slurry is formed by a conventional method, and the slurry is vacuum smelted and aged, and then made into a fineness of 350 mesh powder; ...

Embodiment 2

[0061] Prepare oil fracturing proppants with the following component ratios:

[0062] MgO (magnesium oxide): 22.5%;

[0063] Al 2 o 3 (Al2O3): 7.5%;

[0064] SiO 2 (Silicon dioxide): 62.5%;

[0065] CaO (calcium oxide) + Na 2 O(sodium oxide)+K 2 O (potassium oxide) 7%; among them, CaO (calcium oxide) is 1.5%, Na 2 O (sodium oxide) is 2.0%, K 2 O (potassium oxide) was 3.5%.

[0066] Fe 2 o 3 (Fe2O3): 0.5%.

[0067] The preparation method is as follows:

[0068] 1) Get 50kg kaolin, 230kg high-magnesia kaolin and 20kg feldspar powder as raw materials, grind to 350 mesh through a ball mill and filter for subsequent use;

[0069] 2) After the raw materials that have been ground in step 1) are processed by a conventional iron removal process, the raw materials are mixed according to the above-mentioned component ratio requirements, and then the slurry is formed by a conventional method, and the slurry is vacuum smelted and aged, and then made into a fineness of 350 mesh...

Embodiment 3

[0072] Prepare oil fracturing proppants with the following component ratios:

[0073] MgO (magnesium oxide): 24.5%;

[0074] Al 2 o 3 (Al2O3): 8%;

[0075] SiO 2 (Silicon dioxide): 62%;

[0076] CaO (calcium oxide) + Na 2 O(sodium oxide)+K 2 O (potassium oxide) 5.2%; Among them, CaO (calcium oxide) is 1.5%, Na 2 O (sodium oxide) is 1.8%, K 2 O (potassium oxide) was 1.9%.

[0077] Fe 2 o 3 (Fe2O3): 0.3%.

[0078] The preparation method is as follows:

[0079] 1) Get 40kg kaolin, 242kg high-magnesia kaolin and 18kg feldspar powder as raw materials, grind to 350 mesh through a ball mill and filter for subsequent use;

[0080] 2) After the raw materials that have been ground in step 1) are processed by a conventional iron removal process, the raw materials are mixed according to the above-mentioned component ratio requirements, and then the slurry is formed by a conventional method, and the slurry is vacuum smelted and aged, and then made into a fineness of 350 mesh ...

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Abstract

The invention provides a magnesium-aluminjum spinelle proppant for petrochemical reactors, which comprises the following components in percentage by weight: 20 to 25 percent of MgO, 5 to 10 percent of Al2O3, 60 to 65 percent of SiO2, 5 to 7 percent of a mixture of CaO, Na2O and K2O and 0.2 to 0.5 percent of Fe2O3. Compared with the prior art, the magnesium-aluminjum spinelle proppant for the petrochemical reactors has a higher pressure strength, a smaller self weight and lower production and application cost. The invention also provides a preparation method of the magnesium-aluminjum spinelle proppant for the petrochemical reactors.

Description

technical field [0001] The invention relates to a ceramic filler, in particular to a magnesium-aluminum spinel proppant, and a preparation method thereof. Background technique [0002] The chemical composition of the inert alumina proppant commonly used in the petrochemical production process is as follows: [0003] Al 2 o 3 (Al2O3): 35-90%; [0004] SiO 2 (Silicon dioxide): 5-58%; [0005] MgO (magnesium oxide) + CaO (calcium oxide) + Na 2 O(sodium oxide)+K 2 O (potassium oxide): 5 to 10%. [0006] During specific implementation, kaolin is generally selected to add industrial α-Al 2 o 3 Powder is made by grinding, filtering, molding, drying and sintering. Its main disadvantages are as follows: 1) Industrial α-Al needs to be added to the formula 2 o 3 Powder, whose proportion is 30-85%, consumes a large amount of industrial alumina, high comprehensive energy consumption and high cost; 2) Large specific gravity and high bulk density, generally 1.5-2.0 tons / m 3 , ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/30C04B35/14C04B35/64
Inventor 刘志科
Owner PINJIANG JIANGHUA ENVIRONMENTAL PROTECTION EQUIP FILLING MATERIAL