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Method for preparing high-intensity water-resistant multifunctional high-efficient granule active clay preparation and use thereof

A technology of activated clay and water resistance, used in chemical instruments and methods, other chemical processes, alkali metal oxides/hydroxides, etc., to improve oil quality and deodorization ability, broad market prospects, and improve product quality. Effect

Inactive Publication Date: 2009-08-12
杭州永盛催化剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned products can no longer meet the needs of multiple purposes such as organic nitrogen removal; the granular preparation should not only have a large specific surface area, large pore volume, pore diameter, surface acidity (solid acid), but also have high strength and water resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The preparation method of granular activated clay preparation comprises the following steps:

[0043] 1) Select 1 ton of bentonite raw ore to be crushed by rough rolling, and then put 1.2 tons of water into the slurry tank for stirring to make slurry with a certain specific gravity;

[0044]2) Stir the slurry for 2 hours to make the specific gravity reach 1.2 tons / m 3 ;

[0045] 3) Add 200KG concentrated sulfuric acid with a concentration of 98% to the slurry in the activation kettle, feed steam and stir to heat up to 90°C, keep the temperature for 5 hours, then cool and discharge to the rinsing tank to remove the larger specific gravity at the bottom of the slurry Sand and gravel impurities (conventional process method);

[0046] 4) Stir while adding water in the rinsing tank, stir for 1.5 hours, stand still for 2 hours, put the upper layer of acid solution into the waste acid tank (as the next batch of slurry for acid preparation), add water for the second rinse and...

Embodiment 2

[0053] The preparation method of granular activated clay preparation comprises the following steps:

[0054] 1) select 1 ton of bentonite raw ore to be crushed by rough rolling, and put into 1.3 tons of water slurry tank for stirring to make slurry with a certain specific gravity;

[0055] 2) Stir the slurry for 2.5 hours to make the specific gravity reach 1.35 tons / m 3 ;

[0056] 3) Adding 350KG concentration to the slurry is 98% concentrated sulfuric acid, heat preservation reaction at a temperature of 105° C. for 6 hours, then cool and discharge to the rinsing tank to remove sandstone and impurities with larger proportion in the slurry.

[0057] 4) Stir while adding water in the rinsing tank, stir for 1 hour, stand still for 1.5 hours, put the upper layer of acid solution into the waste acid tank (as the next batch of slurry for acid preparation), add water for the second time and then repeat the previous The process requires about 3-4 times of repeated rinsing, and the a...

Embodiment 3

[0064] The preparation method of granular activated clay preparation comprises the following steps:

[0065] 1) Select 1 ton of bentonite raw ore to be crushed by rough rolling, then add 1.4 tons of water to the pulping tank for stirring to make a slurry with a certain specific gravity;

[0066] 2) Stir the slurry for 3 hours to make the specific gravity reach 1.4 tons / m 3 ;

[0067] 3) Add 450KG concentration of 98% concentrated sulfuric acid to the slurry, heat up to 100°C and keep warm for 6.5 hours, then cool and discharge to the rinsing tank to remove sandstone and impurities with larger proportion in the slurry;

[0068] 4) Stir while adding water in the rinsing tank, stir for 2 hours, stand still for 2.5 hours, put the upper layer of acid solution into the waste acid tank (as the next batch of slurry for acid preparation), add water for the second time and then repeat the previous The process requires about 3-4 times of repeated rinsing, and the water consumption for ...

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Abstract

The invention relates to a method for preparing active argil granular preparation by using bentonite, and aims to prepare active argil with the characteristics of large specific surface area, pore volume and aperture, high surface acid content, water resistance, good activated adsorption, high granule compressive strength and the like. The method has another aim that the granular preparation can be applied to petrochemical production, and also can be applied to purifying waste water and waste gas containing oil and mercury and purifying drinking water. The invention adopts the technical scheme that the method for preparing the multifunctional efficient granular active argil preparation with high strength and water resistance and application thereof comprise the following steps: 1) ore dressing; 2) slurrying and purifying; 3) acidifying; 4) rinsing; 5) filter pressing; 6) molding; 7) drying and crushing; and 8) packing. The obtained active argil granular preparation can remove and reduce olefin and hydroxyl compounds and organic nitrogen compounds in petrochemical arene, and can be applied to the treatment of oil-contained wastewater and mercury-contained wastewater and waste gas.

Description

technical field [0001] The invention relates to a method for preparing a granular activated clay preparation by using bentonite. The prepared granular activated clay preparation has the functions of removing and reducing olefins in aromatics in petrochemical products, hydroxyl compounds, organic nitrogen and variegated colors in benzene products. It can also be used for oil refining, deodorization, aviation kerosene and decolorization, and can also be used for the treatment of oily wastewater, mercury-containing wastewater, and waste gas. Background technique [0002] In order to develop heavy oil production, most refineries adopt low-pressure technology to produce more hydrogen. Due to the treatment of oil colloids and sulfides, the demand for bentonite increases rapidly, so the development of bentonite is also attached great importance at home and abroad. my country's bentonite reserves are abundant, but the content of active ingredients is low and the quality is unstable....

Claims

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Application Information

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IPC IPC(8): B01J20/12B01J20/30B01J20/28
Inventor 朱永林孟忠朱卓钦
Owner 杭州永盛催化剂有限公司
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