CN106518148A - Ceramsite with lipophilic characteristic and preparation method of ceramsite - Google Patents
Ceramsite with lipophilic characteristic and preparation method of ceramsite Download PDFInfo
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- CN106518148A CN106518148A CN201611026611.9A CN201611026611A CN106518148A CN 106518148 A CN106518148 A CN 106518148A CN 201611026611 A CN201611026611 A CN 201611026611A CN 106518148 A CN106518148 A CN 106518148A
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
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- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
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- C04B33/13—Compounding ingredients
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
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- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
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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
The invention belongs to the solid waste resource recovery technical field of environmental protection, more particularly to a kind of to have oil-wet behavior
Haydite and preparation method thereof.
Background technology
Oily sludge be oil extraction, oil product collection be defeated and sewage from oil refinery processing procedure in a kind of solid for producing give up
Thing.Which is bulky and constitutes complicated, in addition to containing a large amount of residual oils, also poisonous containing benzene homologues, phenols, anthracene, pyrene etc.
The venomous injurant of the difficult degradations such as heavy metal, salt and the Polychlorinated biphenyls such as material, substantial amounts of pathogen, parasite, copper, chromium, lead
Matter.If just discharging without effective process, a large amount of soils are not only taken, and environmental pollution can be caused, threaten human health.Oil-containing
Sludge is put into《National Hazard waste register》, its harmless treatment and recycling also cause the highest attention of people.
The sludge higher for oil content, can be washed by thermal cracking, chemical extraction, hot wash, the technology such as coking is reclaimed to oil,
Resource reutilization is realized, but how to process the problem that substantial amounts of mud component is still a urgent need to resolve.
Ceramic grain filter belongs to a kind of novel filter material, and which has porosity height, inhales relative to conventional quartz sand, gravel etc.
Attached property is good, stable chemical performance, length filter cycle, resistance to backwash etc..But the main material of water treatment filter material is clay, page at present
The natural resources such as rock, not only restrict raw material production, harm are will also result in local environment.Although, publication number CN102659390A,
CN102584172A, CN104098321A etc. are the recycling of sludge, but also needing to of having add a certain amount of clay or
Person's sodium carboxymethylcellulose increases viscosity, and what is had needs to add chromium slag reduction sintering temperature with increase haydite intensity；And, prepare
Haydite be through foaming form, compression strength is relatively low, with less oil-wet behavior.
The content of the invention
The technical problem to be solved is the deficiency and offer one kind existed for above-mentioned prior art with parent
The haydite of oily characteristic, compression strength is big, acid-alkali-corrosive-resisting is good, be difficult dry linting and have oil-wet behavior, and the haydite is easy to backwash
Regeneration, it is not hardened, good effect can be obtained as filter medium.
It is a further object of the present invention to provide the preparation method of the above-mentioned haydite with oil-wet behavior.
The present invention by solve the problems, such as the technical scheme for adopting set forth above for：
A kind of haydite with oil-wet behavior, which is mainly made up of oily sludge, bauxite, potassium feldspar, bentonite, each original
Material be according to the mass fraction：Pretreated oily sludge 30-60 parts, bauxite 10-40 parts, potassium feldspar 5-20 parts, bentonite
3-20 parts.
By such scheme, also include glass dust in the raw material of the haydite with oil-wet behavior, in the form of additive
Add, the addition of glass dust accounts for the 0-20% of other raw material gross weights.
By such scheme, the oily sludge is produced during oil exploitation, transport, refining and oily waste water treatment
Oily solid sludge, mainly include that oil field gathering and transportation process produces oily sludge, that oil extraction produces oily sludge, oil plant is dirty
The oily sludge that Large Water Treatment Field is produced.It is mainly aqueous 40-90%, oil-containing 10-50% in oily sludge, others are exactly
Clay class or mineral substance inorganic matter and inevitable impurity (in oily sludge, percentage is in terms of mass fraction).
By such scheme, the pretreatment such as the pretreatment is dehydration, dry or cracking, burning.Pretreatment is mainly to containing
The higher oily sludge of water rate is pre-processed so as to which moisture content is less, so as to follow-up dispensing batch mixing it is uniform.If containing greasy dirt
Mud oil content is simultaneously higher, in order to increase economic efficiency, is to need to extract the oil ingredient in oily sludge, certainly oil
Component is not extracted and so can also not only can be reduced roasting power consumption and can also play pore-creating using it as the fuel of haydite
Effect.Wherein, it is dehydrated pretreatment and is dried the oil content that pretreatment is provided to less sludge, and cracking and burning is mainly
Extract or using the oil in oily sludge.When oily sludge oil content is higher, some byproducts can be obtained by cracking,
Increase economic efficiency, and it is no matter which kind of pretreatment mode as a kind of using energy source using which to burn, what the present invention was utilized is all
Clay class and mineral effective constituents in oily sludge prepares haydite, as long as the moisture content of oily sludge is less than 6%.
By such scheme, generally low-grade bauxite of the bauxite for quality of alumina content 30-65%, aluminium alum
Native mine tailing or some aluminous slags.
The preparation method of the haydite with oil-wet behavior of the present invention, it comprises the following steps：
(1) oily sludge such as is first dehydrated, is dried or is cracked, burned at the pretreatment, obtains oil-containing of the moisture content less than 6%
Sludge is carrying out follow-up dispensing；
(2) according to the mass fraction, by pretreated oily sludge 30-60 parts, bauxite 10-40 parts, potassium feldspar 5-20
Sieve after part, bentonite 3-20 part mixing and ball millings are uniform；
(3) the material rolling shaping after sieve ball milling obtained by step (2), the size of control material granularity, balling-up time
Length, prepare particle diameter be 0.5-20mm haydite green compact；
(4) the haydite green compact after being molded obtained by step (3) are heated up and is sintered, sintering temperature is 1040-1260 DEG C, high
Warm temperature retention time is 1-3 hours, and cooling after the completion of sintering is sieved, and (particle diameter the is 0.5-20mm) haydite for obtaining different size is produced
Product；
(5) haydite obtained by step (4) after the post processings such as acid bubble washing and drying is loaded in being soaked in modified solution and is changed
Property after be dried, obtain final product the haydite with oil-wet behavior, particle diameter is 0.5-20mm.
Preferably, moisture content using revolution convection current Hot Air Drying can be by the drying sludge in the step (1)
The sludge of 60-80% is dried to 3-15%.
Preferably, in the step (1) flue gas that dry run and the sintering process in step (4) are produced passes through lime
The smoke processing system of absorption and SCR denitration composition is discharged after processing, and the flue gas of discharge meets discharge standard.
Preferably, can pass through to add the performance that a small amount of waste glass powder improves haydite, glass dust in the raw material of the haydite
Addition account for the 0-20% of total other raw material gross weights.
Preferably, in the step (4), heating rate is 3-7 DEG C/min.
Preferably, the haydite for preparing in the step (5) is post-processed, and haydite is mainly first used by last handling process
Water cleans drying, then uses H2SO4After solution (PH≤3) immersion 12-24h, then rinsed to neutrality, dry for standby with water.
Preferably, the modified solution is mainly formulated by aluminate coupling agent, water, ethanol.
Preferably, aluminate coupling agent, water, the mass ratio of ethanol are 1:8:10；Also, the pH value control of modified solution exists
3-6, is adjusted using inorganic acid.
Preferably, in the step (5), loaded modified temperature is 60-90 DEG C, and the loaded modified time is 20-60min.
With oily sludge as primary raw material, in addition the Jing high temperature such as a certain amount of potassium feldspar, bauxite, bentonite burns the present invention
Knot is made with higher-strength and the haydite with oil-wet behavior.Wherein, potassium feldspar and low-grade bauxite are mainly used in adjusting
The chemical composition of haydite so as to SiO2-Al2O3-K2O is controlled in zone of reasonableness, so as to ensure that haydite has higher compression strength
With preferable acid-alkali-corrosive-resisting.Meanwhile, the organic principle in potassium feldspar and oily sludge can be provided required for pyroreaction
Gas phase and liquid phase environment, make haydite have higher porosity and absorption property.Bentonite is mainly used in the balling-up for improving material
Efficiency；Glass dust is mainly used in the compression strength for improving haydite；Aluminate coupling agent is by load as the effect of modifying agent
It is stable in haydite microcellular structure afterwards so as to which that oil-wet behavior is improved.
Compared with prior art, the invention has the beneficial effects as follows：
(1) the haydite compression strength with oil-wet behavior of the present invention is big, acid-alkali-corrosive-resisting is good, be difficult dry linting, and
The haydite is easy to backwash and regeneration, not hardened, can obtain good effect as filter medium；Especially, the oleophylic of gained haydite
Characteristic differentiates it from other haydites again, and this characteristic makes which have higher oil removal efficiency in oily waste water treatment, removes
Rate is more than 85%, is more than 80% to the clearance of suspension, and can be used for oily waste water treatment can be used for production dirt
Water or treatment of dyeing wastewater.
(2) primary raw material oily sludge of the invention derives from oil extraction or oil product collection is defeated and sewage from oil refinery was processed
The sludge produced in journey, low-grade bauxite are bauxite mine tailing or aluminous slag, are made with low-grade bauxite with oily sludge
Haydite is prepared for primary raw material, the heat that oily sludge not only can be made full use of to discharge in sintering process, and can disappear
Consume a large amount of oily sludges, save tradition and prepare haydite saving tradition and prepare clay or shale needed for haydite, especially meet solid
Useless the innoxious of process, minimizing and resource principle, and reduce haydite production cost.
(3) strengthen the oil-wet behavior of haydite in the present invention using aluminate coupling agent as modifying agent, aluminate coupling agent
Load, additionally enhances the oil removing performance of haydite so as to the effect of coalescent deoiling can be preferably played in oily waste water treatment,
There is in oily waste water treatment higher oil removal efficiency.
(4) present invention is that oily sludge and the innoxious of low-grade bauxite, resource and industrialization are processed and provide one
Bar effective way, not only raw material sources extensively, low production cost, energy consumption it is little, and turn waste into wealth, oily sludge utilization rate is high,
Non-secondary pollution, added value are high, especially meet the innoxious of fixed-end forces, minimizing and resource principle, with wide
Development prospect, with preferable economic benefit and environmental benefit.
Description of the drawings
Fig. 1 is the process chart of the haydite with oil-wet behavior prepared by the present invention.
Fig. 2 is the inner scanning electron microscopic picture after 1 gained haydite of the embodiment of the present invention is crushed.
Specific embodiment
For a better understanding of the present invention, present disclosure is further elucidated with reference to embodiment, but the present invention is not
It is limited only to the following examples.
In the present invention if no special instructions, percentage is by percentage to the quality.
Embodiment 1
A kind of haydite with oil-wet behavior, which is mainly made up of oily sludge, bauxite, potassium feldspar, bentonite, each original
Material be according to the mass fraction：60 parts of the oily sludge of moisture content 3% after pretreatment, 20 parts of low-grade bauxite, 15 parts of potassium feldspar,
5 parts of bentonite.
The preparation method of the above-mentioned haydite with oil-wet behavior, it comprises the following steps：
(1) oily sludge of the generations such as oilfield exploitation, transport is chosen, the pre- place such as is first dehydrated, is dried or is cracked, burned
Reason, pretreated oily sludge moisture control is 3%；
(2) by pretreated oily sludge, low-grade bauxite, potassium feldspar, bentonite with 60：20：15：5 weight
Than carrying out mixing and ball milling, the material after ball milling crosses 200 eye mesh screens；
(3) material after ball milling sieves is put into rolling shaping in nodulizer, the size, balling-up time according to raw meal particle size
Length, prepares the haydite green compact that particle diameter is 0.5-20mm；
(4) the haydite green compact after being molded are sintered by rotary kiln, and sintering temperature is 1160 DEG C, are incubated 2.5h, cooling
After sieving, the ceramic product of different size is obtained；
(5) haydite for preparing first is washed into drying, then with the H of 1mol/L2SO4Immersion 24h, after rushed with water again
It is washed till neutrality, dry for standby；
(6) haydite that step (5) was processed is soaked in and is configured to by aluminate coupling agent, distilled water, absolute ethyl alcohol
In modified solution, (aluminate coupling agent, distilled water, the mass ratio of absolute ethyl alcohol are 1:8:10), modification temperature is 90 DEG C, is changed
Property time 20min, be modified after with vacuum drier be dried, obtain final product the haydite with oil-wet behavior.
Embodiment 2
A kind of haydite with oil-wet behavior, which is mainly by oily sludge, bauxite, potassium feldspar, bentonite, glass dust group
Into each raw material is according to the mass fraction：After pretreatment, 45 parts of the oily sludge of moisture content 6%, 35 parts of low-grade bauxite, potassium are long
10 parts of stone, 10 parts of bentonite；Glass dust is added in the form of additive, and the addition of glass dust accounts for other raw material gross weights
15%.
The preparation method of the above-mentioned haydite with oil-wet behavior, it comprises the following steps：
(1) oily sludge is chosen, is first dehydrated, is dried or is cracked, burned etc. and pre-process, pretreated oily sludge
Moisture control is 6%；
(2) pretreated oily sludge, low-grade bauxite, potassium feldspar, bentonite are with 45：35：10：10 weight ratio
Mixed, and by the 15% additional waste glass powder ball milling together of compound gross mass, the material after ball milling is crossed 200 eye mesh screens；
(3) material after ball milling sieves is put into rolling shaping in nodulizer, the size, balling-up time according to raw meal particle size
Length can prepare the haydite green compact that particle diameter is 0.5-20mm；
(4) the haydite green compact after being molded are sintered by rotary kiln, and sintering temperature is 1200 DEG C, are incubated 2.5h, cooling
After sieving, the ceramic product of different size is obtained；
(5) haydite for preparing is pre-processed, is mainly first washed drying, then with the H of 1mol/L2SO4Leaching
Bubble 18h, after rinsed to neutrality, dry for standby with water again；
(6) by pretreated haydite be soaked in by aluminate coupling agent, distilled water, absolute ethyl alcohol be configured to it is modified molten
In liquid, (aluminate coupling agent, distilled water, the mass ratio of absolute ethyl alcohol are 1:8:10), modification temperature is 80 DEG C, modification time
30min, is dried with vacuum drier after being modified, obtains final product the haydite with oil-wet behavior.
Embodiment 3
A kind of haydite with oil-wet behavior, which is mainly by oily sludge, bauxite, potassium feldspar, bentonite, glass dust group
Into each raw material is according to the mass fraction：After pretreatment, 30 parts of the oily sludge of moisture content 5%, 40 parts of low-grade bauxite, potassium are long
20 parts of stone, 10 parts of bentonite；Glass dust is added in the form of additive, and the addition of glass dust accounts for other raw material gross weights
20%.
The preparation method of the above-mentioned haydite with oil-wet behavior, it comprises the following steps：
(1) oily sludge is chosen, is first dehydrated, is dried or is cracked, burned etc. and pre-process, pretreated oily sludge
Moisture control is 5%；
(2) pretreated oily sludge, low-grade bauxite, potassium feldspar, bentonite are with 30：40：20：10 weight ratio
Mixed, and by the 20% additional waste glass powder ball milling together of compound gross mass, the material after ball milling is crossed 200 eye mesh screens；
(3) material after ball milling sieves is put into rolling shaping in nodulizer, the size, balling-up time according to raw meal particle size
Length can prepare the haydite green compact that particle diameter is 0.5-20mm；
(4) the haydite green compact after being molded are sintered by rotary kiln, and sintering temperature is 1230 DEG C, are incubated 2.5h, cooling
After sieving, the ceramic product of different size is obtained；
(5) haydite for preparing is pre-processed, is mainly first washed drying, then with the H of 1mol/L2SO4Leaching
Bubble 16h, after rinsed to neutrality, dry for standby with water again；
(6) by pretreated haydite be soaked in by aluminate coupling agent, distilled water, absolute ethyl alcohol be configured to it is modified molten
In liquid, (aluminate coupling agent, distilled water, the mass ratio of absolute ethyl alcohol are 1:8:10), modification temperature is 60 DEG C, modification time
60min, is dried with vacuum drier after being modified, obtains final product the haydite with oil-wet behavior.
Embodiment 4
A kind of haydite with oil-wet behavior, which is mainly by oily sludge, bauxite, potassium feldspar, bentonite, glass dust group
Into each raw material is according to the mass fraction：After pretreatment, 50 parts of the oily sludge of moisture content 3%, 15 parts of low-grade bauxite, potassium are long
15 parts of stone, 5 parts of bentonite；Glass dust is added in the form of additive, and the addition of glass dust accounts for other raw material gross weights
5%.
The preparation method of the above-mentioned haydite with oil-wet behavior, it comprises the following steps：
(1) oily sludge is chosen, is first dehydrated, is dried or is cracked, burned etc. and pre-process, pretreated oily sludge
Moisture control is 3%；
(2) pretreated oily sludge, low-grade bauxite, potassium feldspar, bentonite are with 50：15：15：5 weight ratio
Mixed, and by the 5% additional waste glass powder ball milling together of compound gross mass, the material after ball milling is crossed 200 eye mesh screens；
(3) waste glass powder is added in the mixed material of step (2), added ratio be compound 85%, waste glass powder
15%, ball milling again after addition, the material after ball milling sieves are put into rolling shaping in nodulizer, size according to raw meal particle size, into
The length of ball time can prepare the haydite green compact that particle diameter is 0.5-20mm；
(4) the haydite green compact after being molded are sintered by rotary kiln, and sintering temperature is 1180 DEG C, are incubated 2.5h, cooling
After sieving, the ceramic product of different size is obtained；
(5) haydite for preparing is pre-processed, is mainly first washed drying, then with the H of 1mol/L2SO4Leaching
Bubble 12h, after rinsed to neutrality, dry for standby with water again；
(6) by pretreated haydite be soaked in by aluminate coupling agent, distilled water, absolute ethyl alcohol be configured to it is modified molten
In liquid, (aluminate coupling agent, distilled water, the mass ratio of absolute ethyl alcohol are 1:8:10), modification temperature is 90 DEG C, modification time
30min, is dried with vacuum drier after being modified, obtains final product the haydite with oil-wet behavior.
Embodiment 5
A kind of haydite with oil-wet behavior, which is mainly made up of oily sludge, bauxite, potassium feldspar, bentonite, each original
Material be according to the mass fraction：60 parts of the oily sludge of moisture content 3% after pretreatment, 15 parts of low-grade bauxite, 15 parts of potassium feldspar,
5 parts of bentonite.
The preparation method of the above-mentioned haydite with oil-wet behavior, it comprises the following steps：
(1) oily sludge is chosen, is first dehydrated, is dried or is cracked, burned etc. and pre-process, pretreated oily sludge
Moisture control is 3%；
(2) pretreated oily sludge, low-grade bauxite, potassium feldspar, bentonite are with 60：15：15：5 weight ratio
Mixing and ball milling is carried out, the material after ball milling crosses 200 eye mesh screens；
(3) waste glass powder is added in the mixed material of step (2), added ratio for compound 10%, after addition
Ball milling again, the material after ball milling sieves are put into rolling shaping in nodulizer, the size, the length of balling-up time according to raw meal particle size
The haydite green compact that particle diameter is 0.5-20mm can be prepared；
(4) the haydite green compact after being molded are sintered by rotary kiln, and sintering temperature is 1050 DEG C, are incubated 2.5h, cooling
After sieving, the ceramic product of different size is obtained；
(5) haydite for preparing is pre-processed, is mainly first washed drying, then with the H of 1mol/L2SO4Leaching
Bubble 18h, after rinsed to neutrality, dry for standby with water again；
(6) by pretreated haydite be soaked in by aluminate coupling agent, distilled water, absolute ethyl alcohol be configured to it is modified molten
In liquid, (aluminate coupling agent, distilled water, the mass ratio of absolute ethyl alcohol are 1:8:10), modification temperature is 70 DEG C, modification time
50min, is dried with vacuum drier after being modified, obtains final product the haydite with oil-wet behavior.
Embodiment 6
A kind of haydite with oil-wet behavior, which is mainly made up of oily sludge, bauxite, potassium feldspar, bentonite, each original
Material be according to the mass fraction：50 parts of the oily sludge of moisture content 5% after pretreatment, 50 parts of low-grade bauxite, 20 parts of potassium feldspar,
5 parts of bentonite.
The preparation method of the above-mentioned haydite with oil-wet behavior, it comprises the following steps：
(1) oily sludge is chosen, is first dehydrated, is dried or is cracked, burned etc. and pre-process, pretreated oily sludge
Moisture control is 5%；
(2) pretreated oily sludge, low-grade bauxite, potassium feldspar, bentonite are with 50：20：20：5 weight ratio
Mixing and ball milling is carried out, the material after ball milling crosses 200 eye mesh screens；
(3) waste glass powder is added in the mixed material of step (2), added ratio be compound 95%, waste glass powder
5%, ball milling again after addition, the material after ball milling sieves are put into rolling shaping in nodulizer, size according to raw meal particle size, into
The length of ball time can prepare the haydite green compact that particle diameter is 0.5-20mm；
(4) the haydite green compact after being molded are sintered by rotary kiln, and sintering temperature is 1190 DEG C, are incubated 2.5h, cooling
After sieving, the ceramic product of different size is obtained；
(5) haydite for preparing is pre-processed, is mainly first washed drying, then with the H of 1mol/L2SO4Leaching
Bubble 24h, after rinsed to neutrality, dry for standby with water again；
(6) by pretreated haydite be soaked in by aluminate coupling agent, distilled water, absolute ethyl alcohol be configured to it is modified molten
In liquid, (ratio is 1:8:10), modification temperature is 80 DEG C, and modification time 40min is dried with vacuum drier after being modified, is obtained final product
Haydite with oil-wet behavior.
The present invention is equipped with the auxiliary materials such as bauxite, feldspar using pretreated oily sludge and prepares high strong oil-wet haydite.
In actual production, oily sludge is probably that one or more mixing is utilized.
The haydite with oil-wet behavior prepared by above-described embodiment 1-6, its physical and chemical performance test such as following table：
As shown in Figure 2：Gained of the invention has the haydite of oil-wet behavior, and particle diameter is 0.5-20mm, it is internal be full of space and
Even aperture distribution, this is the internal cause why haydite possesses preferable absorption property and intensity, is also based primarily upon this this, just can be with
Preferable oleophylic modification is carried out to haydite.As seen from the above table：Gained of the invention has a haydite of oil-wet behavior, porosity compared with
Height, water absorption rate compression strength is big, acid-alkali-corrosive-resisting is good, and water absorption rate is suitable, and deoiling effect is good.
The above is only the preferred embodiment of the present invention, it is noted that for one of ordinary skill in the art comes
Say, without departing from the concept of the premise of the invention, some modifications and variations can also be made, these belong to the present invention's
Protection domain.
Claims (10)
1. a kind of haydite with oil-wet behavior, it is characterised in that main by oily sludge, bauxite, potassium feldspar, swelling local soil type
Into each raw material is according to the mass fraction：Pretreated oily sludge 30-60 parts, bauxite 10-40 parts, potassium feldspar 5-20 parts,
Bentonite 3-20 parts.
2. the haydite with oil-wet behavior according to claim 1, it is characterised in that also include glass dust in the raw material,
The addition of glass dust accounts for the 0-20% of other raw material gross weights.
3. the haydite with oil-wet behavior according to claim 1, it is characterised in that the oily sludge mainly includes oil
Collection defeated process in field produces oily sludge, oil extraction and produces the oily sludge that oily sludge, sewage from oil refinery Treatment stations are produced.
4. the haydite with oil-wet behavior according to claim 1, it is characterised in that the pretreated oily sludge
Moisture content is not more than 6%.
5. the haydite with oil-wet behavior according to claim 1, it is characterised in that the bauxite is quality of alumina
The low-grade bauxite of content 30-60%.
6. a kind of preparation method of the haydite with oil-wet behavior, it is characterised in that it comprises the following steps：
(1) oily sludge is pre-processed, and obtains the oily sludge that moisture content is not more than 6%, standby；
(2) according to the mass fraction, by pretreated oily sludge 30-60 parts, bauxite 10-40 parts, potassium feldspar 5-20 parts, swollen
Sieve after profit soil 3-20 part mixing and ball millings are uniform；
(3) the material rolling shaping after sieve ball milling obtained by step (2), prepares the haydite that particle diameter is 0.5-20mm and gives birth to
Base；
(4) the haydite green compact after being molded obtained by step (3) are sintered, sintering temperature is 1040-1260 DEG C, 1-3 is little for insulation
When, cooling after the completion of sintering is sieved, and obtains ceramic product；
(5) by haydite obtained by step (4) after post processing purification, loaded modified drying afterwards in modified solution is soaked in, is obtained final product
Haydite with oil-wet behavior.
7. the preparation method of the haydite with oil-wet behavior according to claim 6, it is characterised in that the step (1)
Glass dust is added with raw material also, the addition of glass dust accounts for the 0-20% of raw material gross weight.
8. the preparation method of the haydite with oil-wet behavior according to claim 6, it is characterised in that in the step (5)
Haydite is first washed drying mainly for post processing purification process, then uses H2SO4After solution immersion 12-24h, it is washed with water
To neutral post-drying.
9. the preparation method of the haydite with oil-wet behavior according to claim 6, it is characterised in that the modified solution
Mainly it is formulated by aluminate coupling agent, water, ethanol, pH is 3-6.
10. the preparation method of the haydite with oil-wet behavior according to claim 6, it is characterised in that the step (5)
In loaded modified temperature be 60-90 DEG C, the loaded modified time be 20-60min.
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| CN108455969A (en) * | 2018-02-06 | 2018-08-28 | 陕西延长石油（集团）有限责任公司 | A method of preparing haydite using coal chemical industry waste material, refinery's oily sludge |
| CN114133223A (en) * | 2022-01-07 | 2022-03-04 | 山东理工大学 | Energy-saving and environment-friendly low-cost ceramsite proppant and preparation method thereof |
| CN114426429A (en) * | 2020-09-02 | 2022-05-03 | 中国石油化工股份有限公司 | Filling sand mixture, ceramsite filling sand, and preparation method and application thereof |
| CN114988849A (en) * | 2021-03-01 | 2022-09-02 | 中国石油化工股份有限公司 | Method for preparing high-strength ceramsite by using dried drilling mud as raw material |
| CN115677373A (en) * | 2022-10-26 | 2023-02-03 | 定边县冠博环保科技有限公司 | Method for preparing ceramsite sand by using tank cleaning oil sludge |
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| CN115724683A (en) * | 2022-10-27 | 2023-03-03 | 中石化石油工程技术服务有限公司 | Zero-valent iron ceramsite and preparation method and application thereof |
| CN115724683B (en) * | 2022-10-27 | 2023-12-15 | 中石化石油工程技术服务有限公司 | Zero-valent iron ceramsite and preparation method and application thereof |
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Application publication date: 20170322 |