Ceramsite with lipophilic characteristic and preparation method of ceramsite

A technology of ceramsite and characteristics, which is applied in the field of ceramsite with lipophilic properties and its preparation, can solve the problems of not having oleophilic properties, increasing the strength of ceramsite, reducing the sintering temperature, etc., so as to save the traditional preparation of ceramsite, enhance Good degreasing performance and good acid and alkali corrosion resistance

Inactive Publication Date: 2017-03-22
SINOPEC ENERGY & ENVIRONMENTAL ENG CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the main materials of water treatment filter materials are natural resources such as clay and shale, which not only restricts the production of raw materials, but also causes harm to the local environment
Although Publication Nos. CN102659390A, CN102584172A, CN104098321A, etc. are all for resource utilization of sludge, some need to add a certain amount of clay or sodium carboxymethylcellulose to increase viscosity, and some need to add chromium slag to reduce sintering temperature and increase pottery. Granular strength; moreover, the prepared ceramsite is foamed, with low compressive strength and no lipophilic properties

Method used

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  • Ceramsite with lipophilic characteristic and preparation method of ceramsite
  • Ceramsite with lipophilic characteristic and preparation method of ceramsite
  • Ceramsite with lipophilic characteristic and preparation method of ceramsite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A ceramsite with lipophilic properties, which is mainly composed of oily sludge, bauxite, potassium feldspar, and bentonite, and the raw materials are calculated in parts by mass: 60 parts of oily sludge with a moisture content of 3% after pretreatment , 20 parts of low-grade bauxite, 15 parts of potassium feldspar, and 5 parts of bentonite.

[0038] The preparation method of the above-mentioned ceramsite with lipophilic properties, it may further comprise the steps:

[0039] (1) Select the oily sludge produced by oil field exploitation and transportation, and perform pretreatment such as dehydration, drying or cracking, incineration, etc., and the moisture content of the pretreated oily sludge is controlled at 3%;

[0040] (2) Pretreated oily sludge, low-grade bauxite, potassium feldspar, and bentonite are mixed and ball-milled at a weight ratio of 60:20:15:5, and the ball-milled material passes through a 200-mesh screen;

[0041] (3) The material after ball milling and...

Embodiment 2

[0046] A ceramsite with lipophilic properties, which is mainly composed of oily sludge, bauxite, potassium feldspar, bentonite, and glass powder. The raw materials are calculated in parts by mass: oily dirt with a moisture content of 6% after pretreatment 45 parts of mud, 35 parts of low-grade bauxite, 10 parts of potassium feldspar, and 10 parts of bentonite; glass powder is added in the form of additives, and the added amount of glass powder accounts for 15% of the total weight of other raw materials.

[0047] The preparation method of the above-mentioned ceramsite with lipophilic properties, it may further comprise the steps:

[0048] (1) Select the oily sludge, first perform pretreatments such as dehydration, drying or cracking, incineration, etc., and the moisture content of the pretreated oily sludge is controlled at 6%;

[0049] (2) After pretreatment, oily sludge, low-grade bauxite, potassium feldspar, and bentonite are mixed in a weight ratio of 45:35:10:10, and waste...

Embodiment 3

[0055] A ceramsite with lipophilic properties, which is mainly composed of oily sludge, bauxite, potassium feldspar, bentonite, and glass powder. The raw materials are calculated in parts by mass: oily dirt with a moisture content of 5% after pretreatment 30 parts of mud, 40 parts of low-grade bauxite, 20 parts of potassium feldspar, and 10 parts of bentonite; glass powder is added in the form of additives, and the added amount of glass powder accounts for 20% of the total weight of other raw materials.

[0056] The preparation method of the above-mentioned ceramsite with lipophilic properties, it may further comprise the steps:

[0057] (1) Select the oily sludge, first perform pretreatments such as dehydration, drying or cracking, incineration, etc., and the moisture content of the pretreated oily sludge is controlled at 5%;

[0058] (2) After pretreatment, oily sludge, low-grade bauxite, potassium feldspar, and bentonite are mixed in a weight ratio of 30:40:20:10, and waste...

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Abstract

The invention discloses ceramsite with a lipophilic characteristic. The performance of the ceramsite is improved by adding oily sludge, potash feldspar, bauxite and bentonite in different proportions and adding a little waste glass powder, and the prepared ceramsite has the lipophilic characteristic through loading of an aluminic acid ester coupling agent. The ceramsite with the lipophilic characteristic has high compressive strength, good acid and alkali resistance, low probability of peeling and the lipophilic characteristic, is easily backwashed and regenerated, does not harden, has a good effect as a filtering medium, can be used for treating oily sewage and production wastewater or printing and dyeing wastewater as well and has the oil removal rate of 85% or higher for the oily sewage and the suspended matter removal rate of 80% or higher.

Description

technical field [0001] The invention belongs to the technical field of solid waste recycling for environmental protection, and in particular relates to ceramsite with lipophilic properties and a preparation method thereof. Background technique [0002] Oily sludge is a kind of solid waste produced in the process of crude oil extraction, oil product gathering and transportation, and refinery sewage treatment. It is bulky and complex in composition. In addition to a large amount of residual oil, it also contains toxic substances such as benzene series, phenols, anthracene, and pyrene, a large number of pathogenic bacteria, parasites, heavy metals such as copper, chromium, and lead, salts, and more. Chlorinated biphenyls and other refractory toxic and harmful substances. If it is discharged without effective treatment, it will not only occupy a large amount of land, but also cause environmental pollution and threaten human health. Oily sludge has been included in the "Nationa...

Claims

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Application Information

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IPC IPC(8): C04B38/06C04B33/132C04B33/13C04B41/82
CPCC04B33/13C04B33/1321C04B33/1324C04B38/009C04B41/46C04B41/82C04B2235/3472C04B2235/349C04B2235/36C04B2235/96C04B2235/9692C04B41/4535C04B38/061C04B38/0067C04B38/0074Y02P40/60
Inventor 张建李清方何社云祝威桂召龙王海峰王利君骆建华吴事江李学忠
Owner SINOPEC ENERGY & ENVIRONMENTAL ENG CO LTD
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