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Efficient process for preparing white carbon black from oil shale waste residues

A technology for oil shale waste residue and white carbon black is applied in the field of white carbon black, which can solve the problems of poor performance such as specific surface area of ​​white carbon black, many preparation steps, and high operating cost.

Inactive Publication Date: 2019-07-16
HEFEI YAKELI NEW BUILDING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] For example, the Chinese patent document (publication number: CN103395793A) discloses a method for preparing alumina and silica by using oil shale ash. The method disclosed in this invention specifically includes pre-desilication reaction, preparation of silica, and preparation of raw meal pulp, clinker sintering, dissolution filtration, desiliconization and cooling, carbonation decomposition, and seed roasting. This document has many preparation steps and high operating costs. further improvement

Method used

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  • Efficient process for preparing white carbon black from oil shale waste residues

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Experimental program
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Effect test

Embodiment 1

[0025] A kind of high-efficiency process for preparing white carbon black from oil shale waste residue of the present embodiment comprises the following steps:

[0026] Step 1: Put the oil shale waste residue in water and let it stand for 1 hour, then filter it, rinse the filter residue twice with clean water, then dry it in a drying oven until the surface moisture content is 5%, and then send it to a ball mill tank for ball milling until the waste residue The particle size is 20mm, and then sent to the calciner for primary activation treatment, and then mixed with pickling agent according to the weight ratio of 1:3 and sent to the cooking pot for cooking treatment, cooking for 30min, after cooking, filtering, washing, and then Drying, followed by secondary activation treatment to obtain the pre-used material for subsequent use;

[0027] Step 2: Send the spare pre-used materials in Step 1 into the improvement solution for stirring at a stirring speed of 100r / min, stir for 10mi...

Embodiment 2

[0037] A kind of high-efficiency process for preparing white carbon black from oil shale waste residue of the present embodiment comprises the following steps:

[0038] Step 1: Put the oil shale waste residue in water and let it stand for 2 hours, then filter it, rinse the filter residue with clean water for 3 times, then dry it in a drying oven until the surface moisture content is 9%, and then send it to a ball mill tank for ball milling until the waste residue The particle size is 100mm, and then sent to the calciner for primary activation treatment, and then mixed with pickling agent according to the weight ratio of 1:3 and sent to the cooking pot for cooking treatment, cooking for 40min, after cooking, filtering, washing, and then Drying, followed by secondary activation treatment to obtain the pre-used material for subsequent use;

[0039] Step 2: Send the pre-used materials spared in Step 1 into the improvement solution for stirring at a stirring speed of 200r / min, stir...

Embodiment 3

[0049] A kind of high-efficiency process for preparing white carbon black from oil shale waste residue of the present embodiment comprises the following steps:

[0050] Step 1: Put the oil shale waste residue in water and let it stand for 1.5 hours, then filter it, rinse the filter residue with clean water for 3 times, then dry it in a drying oven until the surface moisture content is 7%, and then send it to a ball mill tank for ball milling to The particle size of the waste residue is 60mm, and then sent to the calciner for primary activation treatment, and then mixed with pickling agent according to the weight ratio of 1:3 and sent to the cooking pot for cooking treatment, cooking for 35min, after cooking, filtering, washing, Re-drying, followed by secondary activation treatment to obtain the pre-used material for subsequent use;

[0051] Step 2: Send the pre-used materials spared in Step 1 into the improvement solution for stirring at a stirring speed of 150r / min, stir for ...

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Abstract

The invention discloses an efficient process for preparing white carbon black from oil shale waste residues. The efficient process comprises the following steps: step 1, standing oil shale waste residues in water for 1-2 hours, then carrying out filtering, washing the filter residue with clear water for 2-3 times, drying the filter residue in a drying oven until the moisture content of the surfaceis 5-9%, feeding the filter residue into a ball milling tank for ball milling until the particle size of the waste residue is 20-100 mm, feeding the milled waste residues into a calcining furnace forprimary activation treatment, mixing the activated waste resides with an acid washing agent according to the weight ratio of 1:3, and carrying out cooking treatment. According to the method, the oilshale waste residues are placed in water for standing, and then the oil shale waste residues are washed with clear water, so that impurities such as surface dust and the like are removed, the impurityrate of the surfaces of the oil shale waste residues is reduced, preparation is carried out on a subsequent reaction of acid with metal oxides, so that the removal rate of metal oxides is improved, and the purity and quality of products are further improved.

Description

technical field [0001] The invention relates to the technical field of white carbon black, in particular to an efficient process for preparing white carbon black from oil shale waste residue. Background technique [0002] Oil shale is a high ash sedimentary rock containing combustible organic matter. Its main difference from coal is that its ash content exceeds 40%, and its main difference from carbonaceous shale is that its oil content is greater than 3.5%. Oil shale can be obtained by low-temperature dry distillation Shale oil, shale oil is similar to crude oil, which can be made into gasoline, diesel oil or used as fuel oil. Shale oil is very similar to petroleum. In addition to liquid carbon and hydrogen substances, it also contains a small amount of oxygen, nitrogen and sulfur compounds. Shale After further processing and refining, oil can be used to produce liquid fuels such as gasoline, kerosene, and diesel oil, which have the same effect as petroleum; many by-product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/12
CPCC01B33/12C01P2006/60C01P2006/80
Inventor 曹克莉曹克红戴芹汝岳佐霞
Owner HEFEI YAKELI NEW BUILDING MATERIAL CO LTD
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