CN106268643A - The Application way of calcium carbide furnace gas dust - Google Patents

The Application way of calcium carbide furnace gas dust Download PDF

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Publication number
CN106268643A
CN106268643A CN201610814182.5A CN201610814182A CN106268643A CN 106268643 A CN106268643 A CN 106268643A CN 201610814182 A CN201610814182 A CN 201610814182A CN 106268643 A CN106268643 A CN 106268643A
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China
Prior art keywords
furnace gas
calcium carbide
gas dust
carbide furnace
filtering residue
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CN201610814182.5A
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Chinese (zh)
Inventor
许修强
丁力
董宾
郭启海
张顺利
吴道洪
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Beijing Shenwu Environmental and Energy Technology Co Ltd
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Beijing Shenwu Environmental and Energy Technology Co Ltd
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Priority to CN201610814182.5A priority Critical patent/CN106268643A/en
Publication of CN106268643A publication Critical patent/CN106268643A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
    • B01J20/041—Oxides or hydroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28057—Surface area, e.g. B.E.T specific surface area
    • B01J20/28066—Surface area, e.g. B.E.T specific surface area being more than 1000 m2/g
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G25/00—Refining of hydrocarbon oils in the absence of hydrogen, with solid sorbents
    • C10G25/003—Specific sorbent material, not covered by C10G25/02 or C10G25/03
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B3/00—Refining fats or fatty oils
    • C11B3/10—Refining fats or fatty oils by adsorption
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/10—Feedstock materials
    • C10G2300/1037—Hydrocarbon fractions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
    • C10G2400/02—Gasoline
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
    • C10G2400/04—Diesel oil

Abstract

The invention discloses the Application way of a kind of calcium carbide furnace gas dust, comprise the following steps: calcium carbide furnace gas dust and alkali liquor are added in mixed processing device according to mass ratio 1:0.5～1:3, be stirred soaking molten, obtain solidliquid mixture；Obtain filtering residue after being filtered by solidliquid mixture, filtering residue is fired at 700～800 DEG C activation 0.5～2h；After filtering residue after firing activation cools down, successively with acid solution and water washing, then carry out drying, pulverize and sieving, thus prepare porous material.The present invention is by improving the specific surface area of calcium carbide furnace gas dust, so that calcium carbide furnace gas dust has preferable absorption property, such that it is able to as oil refinery agent, adsorb the pigment in various oil product.The present invention can adequately and reasonably utilize calcium carbide furnace gas dust, both turned waste into wealth, and can protect again environment, meets national energy utilization of resources policy, has important economy, environmental and social benefits.

Description

The Application way of calcium carbide furnace gas dust
Technical field
The present invention relates to the recovery and utilization technology field of calcium carbide furnace gas dust, be specifically related to the profit of a kind of calcium carbide furnace gas dust Use method.
Background technology
" 12 " period, China's calcium carbide industry is at the fast-developing band of the downstream industry such as polrvinyl chloride and BDO Under Dong, various places oneself's supporting carbide project comparison that starts is many, and carbide production capacity enters and is skyrocketed through the phase.At the end of 2014, state Interior carbide enterprise reaches more than 290 families, and production capacity then reaches 41,830,000 tons/year.Wherein, technical equipment is high, effects of energy conservation and environmental protection Significantly closed type calcium carbide furnace production capacity reaches 31,060,000 tons/year.Closed calcium carbide furnace is used to produce 1 ton of carbide by-product furnace gas about 400Nm3, containing mass concentration in furnace gas is 130～200g/Nm3Dust, therefore, the discharge capacity of calcium carbide furnace gas dust is huge.
The calcium carbide furnace gas dust being rejected in a large number takies certain soil, and surrounding easily causes certain pollution. And along with the carbide size of capacity strengthens, this pollution will become increasingly severe.How to improve the comprehensive of calcium carbide furnace gas dust Utilization rate and added value thereof become Key Scientific And Technical Problems the most urgently to be resolved hurrily, along with carbide industry flourish, furnace of calcium carbide Gas dust be treated as the huge difficult problem that each carbide manufacturing enterprise is faced, environmental requirement level improve constantly and resource combine Close the development utilizing technology so that people are while research carbide product Appropriate application, in the urgent need to carrying out calcium carbide furnace gas powder The research of dirt treatment technology, carries out high-valued exploitation to calcium carbide furnace gas dust, to realize the comprehensive utilization of resource.
Summary of the invention
It is an object of the invention to overcome deficiency of the prior art, it is provided that the Application way of a kind of calcium carbide furnace gas dust. The method, by the calcium carbide furnace gas dust given up is prepared as oil refinery agent, i.e. decreases the pollution to surrounding, also carries The high utilization ratio of resource, it is achieved thereby that the comprehensive utilization of resource.
It is an object of the invention to by following technical scheme realization:
The Application way of this calcium carbide furnace gas dust, comprises the following steps:
S1: calcium carbide furnace gas dust is added in mixed processing device according to mass ratio 1:0.5～1:3 with alkali liquor, stirs Mix leaching molten, obtain solidliquid mixture；
S2: obtain filtering residue after being filtered by affiliated solidliquid mixture, described filtering residue is fired at 700～800 DEG C activation 0.5 ～2h；
S3: after the cooling of the filtering residue after activation will be fired in step S2, successively with acid solution and water washing, then carry out drying, Pulverize and screening, thus prepare porous material.
Further, in step S1, it is 50～100 DEG C that molten temperature is soaked in stirring, and the time is 0.5～2h.
Preferably, the alkali liquor in step S1 is sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium bicarbonate and carbonic acid At least one in hydrogen potassium and water are made into alkaline solution, and the weight concentration of alkaline solution is 20%～50%.
Preferably, the acid that one or more during the acid solution in step S3 is hydrochloric acid, sulphuric acid, nitric acid and phosphoric acid and water are made into Property solution, and the weight concentration of acid solution is 1%～8%.
Preferably, in step S3, washing through acid solution and water, the pH value of gained filtering residue is 7～9.
Preferably, in step S3, drying is dried at 105～110 DEG C, and in described filtering residue, biodiversity ratio is less than 1%.
Preferably, in step S3, screening is to sieve with the standard screen of 150～300 mesh.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become from the following description Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
Fig. 1 is according to the embodiment of the present invention, the flow chart of the Application way of calcium carbide furnace gas dust.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
The dust carried in the furnace gas of by-product when calcium carbide furnace gas dust is to produce carbide, through dry dedusting technology gained.Logical In the case of Chang, in this calcium carbide furnace gas dust, particle diameter accounts for more than 98% less than 40 μm, and pore volume is more than 0.2cm3/ g, aperture is little InWherein this calcium carbide furnace gas dust mainly includes the compositions such as calcium oxide, carbon, silicon oxide, aluminium oxide and ferrum oxide.Further, The specific surface area of this dust is less than 800m2/ g, it is an object of the invention to the specific surface area by improving calcium carbide furnace gas dust, from And make this calcium carbide furnace gas dust have preferable absorption property, such that it is able to as oil refinery agent, adsorb in various oil product Pigment.
Application way below with reference to Fig. 1 description calcium carbide furnace gas dust according to embodiments of the present invention.
The Application way of this calcium carbide furnace gas dust comprises the steps:
S1: calcium carbide furnace gas dust is added in mixed processing device according to mass ratio 1:0.5～1:3 with alkali liquor, stirs Mix leaching molten, obtain solidliquid mixture；
S2: obtain filtering residue after being filtered by described solidliquid mixture, described filtering residue is fired at 700～800 DEG C activation 0.5 ～2h；
S3: after the cooling of the filtering residue after activation will be fired in step S2, successively with acid solution and water washing, then carry out drying, Pulverize and screening, thus prepare porous material；
Preferably, according to embodiment disclosed by the invention, in step sl by calcium carbide furnace gas dust and alkali liquor mixed processing And stir leaching molten, its object is to corrode raw material by alkali liquor, destruction dust rule of surface deck structure, increase former The depth and width of material surface holes, thus increase its specific surface area, and then improve its adsorptivity.Further, this stirring leaching is molten Temperature be 50～100 DEG C, the time is 0.5～2h.
It is highly preferred that the alkali liquor in step S1 is sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium bicarbonate and carbon The alkaline solution that at least one in potassium hydrogen phthalate and water are made into, and the weight concentration of this alkaline solution is 20%～50%.
Further, the purpose firing activation in step S2 is so that this filtering residue surface divides, thus improves further Its specific surface area.
Wherein, the purpose washed with acid solution and water in step S3 is to neutralize the alkalescence produced in above-mentioned steps, thus anti- Only the product of preparation is put into after in oil product and oil product generation chemical reaction, contaminated product.Wherein acid solution is hydrochloric acid, sulphuric acid, nitric acid The acid solution being made into one or more in phosphoric acid and water, and the weight concentration of this acid solution is 1%～8%.
Preferably, according to the Application way of calcium carbide furnace gas dust disclosed by the invention, in step S3, through acid solution and washing Washing, the pH value of gained filtering residue is 7～9.
Further, in step S3, drying is dried at 105～110 DEG C, and in this filtering residue, biodiversity ratio is less than 1%.Wherein, screening is to sieve with the standard screen of 150～300 mesh, is gone out by big particle screening, leaves less granule.
The porous material prepared utilizes pigment diffusion-absorption principle can be used in oil decolorization technique, and these are many The specific surface area of Porous materials can reach 1700-5500m2/ g, pore volume is more than 0.25cm3/ g, aperture is less thanSpecifically, utilize The porous material utilizing calcium carbide furnace gas dust to prepare disclosed by the invention can be applied in gasoline, kerosene, diesel oil, lubricating oil, life In the oil products such as thing diesel oil, vegetable oil and industry excessive fuel consumption.
Embodiment
Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
The present invention uses ultraviolet-spectrophotometer to be measured the light absorption value of oil product, before and after then decolouring according to oil product Light absorption value calculate, its calculating formula is:
Wherein: A1 is the light absorption value before oil product decolouring, A2 is the light absorption value after oil product decolouring.
Embodiment 1:
The sodium carbonate in mass ratio 1: 3 that calcium carbide furnace gas dust and weight concentration are 35% is added in mixed processing device, At a temperature of 100 DEG C, it is stirred soaking molten 2h, filters after leaching cementing bundle, filtering residue is fired work at a temperature of 700 DEG C Change 1.5h, after cooling successively with 1% dilute hydrochloric acid washing, water washing to pH value=7～9, at 105 DEG C drying calcium carbide furnace gas powder Dirt moisture is less than 1% (weight), pulverizes and with 150 mesh standard sieves screenings, just prepares porous material.Weigh this porous material of 6g Material adds in the coker gasoline of 100mL, the refined 30min of stirring under temperature 60 C, filters, can realize after staticly settling 1.5h Oil decolorization.
After measured, use this porous material, the percent of decolourization of gasoline can be made to reach 96%.
Embodiment 2:
The sodium hydroxide in mass ratio 1: 0.5 that calcium carbide furnace gas dust and weight concentration are 20% is added mixed processing device In, at a temperature of 50 DEG C, it is stirred soaking molten 1.5h, filters after leaching cementing bundle, filtering residue is burnt at a temperature of 800 DEG C System activation 0.5h, after cooling successively with 8% dilute sulfuric acid washing, water washing to pH value=7～9, at 110 DEG C drying furnace of calcium carbide Gas dust moisture is less than 1% (weight), pulverizes and with 300 mesh standard sieves screenings, just prepares porous material.These are many to weigh 8g Porous materials adds in the catalytic cracking diesel oil of 100mL, the refined 50min of stirring at temperature 85 DEG C, filters, i.e. after staticly settling 2h Oil decolorization can be realized.
After measured, use this porous material, the percent of decolourization of diesel oil or biodiesel can be made to reach 93%.
Embodiment 3:
The potassium hydroxide in mass ratio 1: 2 that calcium carbide furnace gas dust and weight concentration are 25% is added mixed processing device In, at a temperature of 70 DEG C, it is stirred soaking molten 0.5h, filters after leaching cementing bundle, filtering residue is burnt at a temperature of 800 DEG C System activation 2h, after cooling successively with 7% dilute sulfuric acid washing, water washing to pH value=7～9, at 110 DEG C drying calcium carbide furnace gas Dust moisture is less than 1% (weight), pulverizes and with 200 mesh standard sieves screenings, just prepares porous material.Weigh this porous of 5g Material adds in the aerial kerosene of 100mL, the refined 50min of stirring under temperature 50 C, filters, can realize after staticly settling 1h Oil decolorization.
After measured, use this porous material, the percent of decolourization of kerosene can be made to reach 97%.
Embodiment 4:
The sodium bicarbonate in mass ratio 1: 2.5 that calcium carbide furnace gas dust and weight concentration are 50% is added mixed processing device In, at a temperature of 85 DEG C, it is stirred soaking molten 1h, filters after leaching cementing bundle, filtering residue is fired at a temperature of 700 DEG C Activation 1h, after cooling successively with 5% dilute sulfuric acid washing, water washing to pH value=7～9, at 105 DEG C drying calcium carbide furnace gas powder Dirt moisture is less than 1% (weight), pulverizes and with 250 mesh standard sieves screenings, just prepares porous material.Weigh this porous material of 7g Material adds in the biodiesel of 100mL, the refined 40min of stirring at temperature 90 DEG C, filters, can realize after staticly settling 1.5h Oil decolorization.
After measured, use this porous material, the percent of decolourization of vegetable oil can be made to reach 94%.
Embodiment 5:
The potassium hydroxide mass ratio 1: 3 that calcium carbide furnace gas dust and weight concentration are 25% is added in mixed processing device, At a temperature of 85 DEG C, it is stirred soaking molten 1.5h, filters after leaching cementing bundle, filtering residue is fired work at a temperature of 800 DEG C Change 1.5h, after cooling successively with 5% dilute sulfuric acid washing, water washing to pH value=7～9, at 105 DEG C drying calcium carbide furnace gas powder Dirt moisture is less than 1% (weight), pulverizes and with 150 mesh standard sieves screenings, just prepares porous material.Weigh this porous material of 6g Material adds in the lubricating oil of 100mL, the refined 40min of stirring at temperature 90 DEG C, filters, can realize oil after staticly settling 1.5h The decolouring of product.
After measured, use this porous material, the percent of decolourization of lubricating oil or industrial waste oil can be made to reach 94%.
The present invention compared with prior art, has the advantage that
The pretreatment of calcium carbide furnace gas dust, preparation technology are simple, it is easy to control；
Decolorizing efficiency is high, and up to more than 93%, refining agent is preferable with the separating effect of mother solution (oil product)；
Raw material sources are extensive, and the Deep processing pedagogy belonging to refuse utilizes, and advantageously reduces preparation cost；Can be adequately and reasonably sharp Use calcium carbide furnace gas dust, both turned waste into wealth, environment can be protected again, meet national energy utilization of resources policy, there is important warp Ji, environmental and social benefits.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be arbitrary Individual or multiple embodiment or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the technology of this area The feature of the different embodiments described in this specification or example and different embodiment or example can be combined by personnel And combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, revises, replaces and modification.

Claims (7)

1. an Application way for calcium carbide furnace gas dust, comprises the following steps:
S1: added in mixed processing device according to mass ratio 1:0.5～1:3 with alkali liquor by calcium carbide furnace gas dust, is stirred leaching Molten, obtain solidliquid mixture；
S2: by described solidliquid mixture filter after obtain filtering residue, described filtering residue is fired at 700～800 DEG C activation 0.5～ 2h；
S3: after the filtering residue after firing activation in step S2 cools down, successively with acid solution and water washing, then carries out drying, pulverizing And screening, thus prepare porous material.
The Application way of calcium carbide furnace gas dust the most according to claim 1, it is characterised in that in described step S1, stirring Soaking molten temperature is 50～100 DEG C, and the time is 0.5～2h.
The Application way of calcium carbide furnace gas dust the most according to claim 1, it is characterised in that the alkali liquor in described step S1 It is at least one alkali being made into water in sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium bicarbonate and potassium bicarbonate Property solution, and the weight concentration of described alkaline solution is 20%～50%.
The Application way of calcium carbide furnace gas dust the most according to claim 1, it is characterised in that the acid solution in described step S3 It is one or more acid solutions being made into water in hydrochloric acid, sulphuric acid, nitric acid and phosphoric acid, and the weight of described acid solution is dense Degree is 1%～8%.
The Application way of calcium carbide furnace gas dust the most according to claim 1, it is characterised in that in described step S3, through acid Liquid and water washing, the pH value of gained filtering residue is 7～9.
The Application way of calcium carbide furnace gas dust the most according to claim 1, it is characterised in that in described step S3, dries Being dried at 105～110 DEG C, in described filtering residue, biodiversity ratio is less than 1%.
The Application way of calcium carbide furnace gas dust the most according to claim 1, it is characterised in that in described step S3, screening It is to sieve with the standard screen of 150～300 mesh.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108516840A (en) * 2018-04-16 2018-09-11 柳州市柳晶科技股份有限公司 A method of preparing porous material using Industry Waste ash
CN113787088A (en) * 2021-10-29 2021-12-14 深圳市龙岗区东江工业废物处置有限公司 CVD dust treatment method
CN113893861A (en) * 2021-11-18 2022-01-07 华北理工大学 Sodium salt-blast furnace dust catalyst and method for preparing biodiesel by using same
CN114733479A (en) * 2022-03-15 2022-07-12 合肥学院 La2O3Preparation method and application of modified space furnace coarse slag filter cake porous adsorption material

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