CN108623295A - A kind of technique preparing insulating brick coproduction acid - Google Patents

A kind of technique preparing insulating brick coproduction acid Download PDF

Info

Publication number
CN108623295A
CN108623295A CN201810712941.6A CN201810712941A CN108623295A CN 108623295 A CN108623295 A CN 108623295A CN 201810712941 A CN201810712941 A CN 201810712941A CN 108623295 A CN108623295 A CN 108623295A
Authority
CN
China
Prior art keywords
insulating brick
parts
acid
preparing insulating
technique according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810712941.6A
Other languages
Chinese (zh)
Inventor
陈肖虎
李杰瑞
王帅帅
李名新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou University
Original Assignee
Guizhou University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guizhou University filed Critical Guizhou University
Priority to CN201810712941.6A priority Critical patent/CN108623295A/en
Publication of CN108623295A publication Critical patent/CN108623295A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
    • C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
    • C04B35/185—Mullite 3Al2O3-2SiO2
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/74—Preparation
    • C01B17/76—Preparation by contact processes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3241—Chromium oxides, chromates, or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • 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
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • 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
    • C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
    • C04B2235/9615—Linear firing shrinkage

Abstract

The present invention provides a kind of techniques preparing insulating brick coproduction acid, include the following steps：Raw material are made in ardealite, low product bauxite, additive and modifying agent mixed grinding, is sent into kiln and roasts to obtain clinker；Clinker is dissolved out, and is separated by solid-liquid separation；Isolated solution prepares alumina powder；Alumina powder and mullite fine powder, kaolin, polystyrene sphere, silica, zirconium dioxide, chrome green, magnesia and water mixed grinding are obtained into mixed material, by mixed material through extrusion under vacuum, spontaneously dries 23 days, heat drying, is sintered to obtain insulating brick；Isolated residue is obtained into sulfide through flotation；Sulfuric acid is made in sulfide processing.The present invention, which has, prepares insulating brick and relieving haperacidity is at low cost, and the utilization rate of ardealite and low product bauxite is high, and the insulating brick quality prepared using alumina powder is good, physical property is excellent, and acid-making process is simple.

Description

A kind of technique preparing insulating brick coproduction acid
Technical field
The present invention relates to a kind of techniques preparing insulating brick coproduction acid, belong to field of metallurgy and chemical engineering.
Background technology
The energy for being mainly used for oil catalytic cracking unit high-temperature flue gas processing procedure for compensation combustion type CO waste heat boilers returns It receives and utilizes, the main component of high-temperature flue gas is CO2、CO、N2And SO2, have suitable for compensation combustion type CO waste heat boilers in existing technology High intensity, high temperature resistant, anti-erosion, heat-proof quality gets well and has the high-strength insulating brick of certain wear resistance, but this every In the production of hot brick, need a large amount of aluminium oxide as raw material, and in the complex manufacturing technology of existing alumina powder, production cost Height leads to alumina powder price, greatly improves the production cost of insulating brick.
Ardealite refer in phosphoric acid production with sulfuric acid treating phosphorite when the solid that generates, main component is calcium sulfate （CaSO4）, content generally can reach 70-90% or so.In addition, ardealite also contains plurality of impurities：Undecomposed phosphorus ore, not Phosphoric acid, calcirm-fluoride, iron, aluminium compound, acid non-soluble substance, organic matter of washes clean etc..Ardealite about 2000 is discharged every year in China Ten thousand tons, add up nearly hundred million tons of discharge capacity.Utilization rate of the ardealite in terms of building materials is less than 5%, a large amount of gypsum stack land occupations, sternly Heavily contaminated environment.
China bauxite is largely diaspore type, accounts for 98% of total resources or more, feature be high silicon, high alumina, Low iron, ore entirety alumina silica ratio is relatively low, 80% or more be in low product bauxite, alumina silica ratio is less than 4 in low-grade bauxite, aluminium Silicon is than the ore more than 9 only 18.5% or so, therefore low product bauxite resource in developing, and is to realize that China's aluminum oxide industry can be held The only way which must be passed of supervention exhibition.
It is existing currently, seldom for the technology of the comprehensive utilization of ardealite and low product bauxite, be substantially focused on building materials and It the traditional fields such as paves the way, which results in the waste of a large amount of high value ingredients in ardealite and low product bauxite, added value is very low. And ardealite and low product is alumyte synthesized using come insulating brick processed, while the technique of coproduction acid, it has not been reported.
Goal of the invention
The object of the present invention is to provide a kind of techniques preparing insulating brick coproduction acid.The present invention, which has, prepares insulating brick and system Acid is at low cost, and the utilization rate of ardealite and low product bauxite is high, the good, physical property using the insulating brick quality of alumina powder preparation It is excellent, and acid-making process is simple.
Technical scheme of the present invention
A kind of technique preparing insulating brick coproduction acid, includes the following steps：
A, ardealite, low product bauxite, additive and modifying agent are mixed and is ground and raw material are made, be sent into roasting in kiln, be made Clinker；
B, clinker made from step A is dissolved out, and is separated by solid-liquid separation；
C, CO is added into solution isolated step B2It is no longer generated to white precipitate, it is clear after then filtering out white precipitate Drying and calcination are washed, alumina powder is crushed to obtain；
D, by alumina powder made from step C and mullite fine powder, kaolin, polystyrene sphere, silica, titanium dioxide Zirconium, chrome green, magnesia and water mixed grinding obtain mixed material, by mixed material through extrusion under vacuum, spontaneously dry 2-3 days, heat drying, be sintered to obtain insulating brick；
E, by residue isolated step B through flotation, sulfide is detached to obtain；
F, the step E sulfide isolated is placed under the oxygen-enriched environment of 30-50%, 3-5h is roasted at 800-1200 DEG C, roasted The flue gas of generation is absorbed using the concentrated sulfuric acid after vanadic anhydride catalysis reaction, sulfuric acid is made.
In the technique above-mentioned for preparing insulating brick coproduction acid, in step A, the additive is sodium carbonate, sodium sulphate or burning Alkali；The modifying agent is anthracite, carbon or gangue.
In the technique above-mentioned for preparing insulating brick coproduction acid, in step A, in the raw material, ardealite and low product alumina Mine is according to 1:The ratio of 0.6-1.7 weight ratios mixes, and additive adding proportion presses contained Na in raw material2O and A12O3+Fe2O3Summation Molecular proportion be 1:1 addition, the mixed proportion of modifying agent are the 10-25% of raw material total weight.
In the technique above-mentioned for preparing insulating brick coproduction acid, in step A, the kiln is industrial rotary kiln, Industry Tunnel Kiln Or industrial shaft kiln.
It is the roasting time at 1000-1350 DEG C of temperature in step A in the technique above-mentioned for preparing insulating brick coproduction acid 1-2h。
In the technique above-mentioned for preparing insulating brick coproduction acid, in step B, dissolved out after clinker elder generation water mill；When dissolution It is 4-6 that liquid, which consolidates volume ratio,:1.
In the technique above-mentioned for preparing insulating brick coproduction acid, in step C, when calcination is the calcination at 800-1200 DEG C of temperature Between 3-5h.
In the technique above-mentioned for preparing insulating brick coproduction acid, in step D, by weight, the mixed material includes oxygen Change 20-25 parts of aluminium powder, 35-40 parts of mullite fine powder, 10-15 parts of kaolin, 3-5 parts of polystyrene sphere, silica 3-4 Part, 2-3 parts of zirconium dioxide, 2-3 parts of chrome green, 1-2 parts of magnesia and 25-30 parts of water.
In the technique above-mentioned for preparing insulating brick coproduction acid, in step D, the mesh number of the mixed material is 50-100 mesh.
In the technique above-mentioned for preparing insulating brick coproduction acid, in step D, the temperature of the heat drying is 80-100 DEG C, Heat drying time is 2-3 days；The sintering is to be sintered 3-4h in the case where temperature is 1450-1550 DEG C.
The present invention is by by ardealite and the reaction of low product bauxite, recombination, making utility.The overall reaction of principle Formula is：
CaSO4（Ardealite）+ Na2O·SiO2·Al2O3（Low product bauxite）→ Na2O·Al2O3 + CaO·SiO2↓ + [sulphur]
From the reaction equation it is found that with the CaO and SiO in low product bauxite in ardealite2Generate calcium orthosilicate（ CaO·SiO2 ↓）Afterwards, soluble fabulous sodium aluminate is obtained（Na2O·Al2O3）.[sulphur] in reaction equation, refer to by raw material doping and Modifying agent technique, the metal sulfide of generation；After leaching the sodium aluminate in clinker, obtained sediment flotation be can be obtained into gold Belong to sulfide.
Advantageous effect
1, the present invention and is added after additive and modifying agent by using ardealite and low product bauxite as raw material, in height The clinker of main silicate-containing, aluminate and sulfide is obtained under the technique of temperature roasting, and the main component of the aluminate is aluminium Sour sodium, by sodium aluminate it is water-soluble go out after may be recovered, and after solid residue flotation, sulfide is obtained, using sulfide system Standby sulfuric acid, aluminium oxide is prepared by the sodium aluminate of recycling, aluminium oxide and other raw materials is prepared insulating brick, due in entire technique Mainly using ardealite and low product bauxite as raw material, other a small amount of substances are added, therefore, greatly reduce relieving haperacidity and heat-insulated The cost input of brick.The utilization rate for also greatly increasing ardealite and low product bauxite, to alleviate pollution of the ardealite to environment With make full use of low product bauxite have important contribution.
2, the present invention by raw material by roasting after, obtained ingredient is clearly demarcated, aluminium mainly with aluminic acid na form exist, profit The characteristic of water is highly soluble in sodium aluminate, can be simple and quick be isolated and be used to prepare aluminium oxide, by aluminium oxide with it is other Raw material prepare using alumina powder prepare insulating brick quality is good, physical property is excellent, and insulating brick is at low cost.
3, the present invention obtains after the solid residue flotation in technique sulfide, sulfuric acid, relieving haperacidity is prepared using sulfide Cost it is low, acid-making process is simple.
Further to prove that the effect of the present invention, inventor have done following detection.
1, the detection of insulating brick
Inventor is respectively detected the insulating brick in following five groups of embodiments, and testing result is as follows：
Obtained by the Analysis of test results to 1 insulating brick of the present invention of table, insulating brick of the invention have bulk density it is small, 1200 DEG C The characteristics of lower reheating line variability is small, 1200 DEG C of compressive resistances and High anti bending strength, 1200 DEG C of thermal conductivities are small, good thermal shock stability, So insulating brick quality of the present invention is good, physical property is excellent.
Specific implementation mode
With reference to embodiment, the present invention is further illustrated, but is not intended as the foundation limited the present invention.
The embodiment of the present invention
Embodiment 1：A kind of technique preparing insulating brick coproduction acid, steps are as follows：
A, ardealite, low product bauxite, sodium carbonate and anthracite are mixed and is ground and raw material are made, be sent into industrial rotary kiln Clinker is made in roasting time 1.5h at 1000 DEG C of temperature；Wherein, ardealite and low product bauxite are according to 1:The ratio of 0.6 weight ratio Example mixing, sodium carbonate adding proportion press contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation is 1:1 addition, anthracite Mixed proportion be raw material total weight 10%；
B, clinker made from step A is consolidated into volume ratio as 4 with liquid:1 carries out water mill dissolution, and is separated by solid-liquid separation；
C, by residue isolated step B through flotation, sulfide is detached to obtain；
D, the step C sulfide isolated is placed under 30% oxygen-enriched environment, 5h is roasted at 800 DEG C, roast the flue gas of generation After vanadic anhydride catalysis reaction, is absorbed using the concentrated sulfuric acid, sulfuric acid is made；
E, CO is added into solution isolated step B2It is no longer generated to white precipitate, it is clear after then filtering out white precipitate Drying is washed, alumina powder is crushed to obtain after calcination time 5h at 800 DEG C of temperature；
F, by alumina powder made from step E and mullite fine powder, kaolin, polystyrene sphere, silica, titanium dioxide Zirconium, chrome green, magnesia and water mixed grinding obtain mixed material, by mixed material through extrusion under vacuum, spontaneously dry 2 It, temperature be 80 DEG C, heat drying time be 2 days after, temperature be 1450 DEG C at, sintering 3h obtain insulating brick；Wherein press weight Part meter is measured, the mixed material includes 20 parts of alumina powder, 35 parts of mullite fine powder, 10 parts of kaolin, polystyrene sphere 3 Part, 3 parts of silica, 2 parts of zirconium dioxide, 2 parts of chrome green, 1 part of magnesia and 25 parts of water；The mesh number of the mixed material For 50-100 mesh.
Embodiment 2：A kind of technique preparing insulating brick coproduction acid, steps are as follows：
A, ardealite, low product bauxite, sodium sulphate and carbon are mixed and is ground and raw material are made, be sent into industrial rotary kiln in temperature Clinker is made in roasting time 2h at 1200 DEG C；Wherein, ardealite and low product bauxite are according to 1:The ratio of 0.9 weight ratio mixes, Caustic soda adding proportion presses contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation is 1:1.4 additions, the mixed proportion of carbon are The 15% of raw material total weight；
B, clinker made from step A is consolidated into volume ratio as 5 with liquid:1 carries out water mill dissolution, and is separated by solid-liquid separation；
C, by residue isolated step B through flotation, sulfide is detached to obtain；
D, the step C sulfide isolated is placed under 35% oxygen-enriched environment, 4h is roasted at 900 DEG C, roast the flue gas of generation After vanadic anhydride catalysis reaction, is absorbed using the concentrated sulfuric acid, sulfuric acid is made；
E, CO is added into solution isolated step B2It is no longer generated to white precipitate, it is clear after then filtering out white precipitate Drying is washed, alumina powder is crushed to obtain after calcination time 4h at 1000 DEG C of temperature；
F, by alumina powder made from step E and mullite fine powder, kaolin, polystyrene sphere, silica, titanium dioxide Zirconium, chrome green, magnesia and water mixed grinding obtain mixed material, by mixed material through extrusion under vacuum, spontaneously dry 3 It, temperature be 85 DEG C, heat drying time be 3 days after, temperature be 1500 DEG C at, sintering 4h obtain insulating brick；Wherein press weight Part meter is measured, the mixed material includes 22 parts of alumina powder, 37 parts of mullite fine powder, 12 parts of kaolin, polystyrene sphere 4 Part, 3 parts of silica, 3 parts of zirconium dioxide, 3 parts of chrome green, 2 parts of magnesia and 26 parts of water；The mesh number of the mixed material For 50-100 mesh.
Embodiment 3：A kind of technique preparing insulating brick coproduction acid, steps are as follows：
A, ardealite, low product bauxite, caustic soda and gangue are mixed and is ground and raw material are made, be sent into industrial rotary kiln in temperature Clinker is made in roasting time 1.5h at 1300 DEG C of degree；Wherein, ardealite and low product bauxite are according to 1:The ratio of 1.3 weight ratios Mixing, sodium carbonate adding proportion press contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation is 1:1 addition, gangue Mixed proportion is the 20% of raw material total weight；
B, clinker made from step A is consolidated into volume ratio as 6 with liquid:1 carries out water mill dissolution, and is separated by solid-liquid separation；
C, by residue isolated step B through flotation, sulfide is detached to obtain；
D, the step C sulfide isolated is placed under 45% oxygen-enriched environment, 3h is roasted at 1000 DEG C, roast the cigarette of generation Gas is absorbed using the concentrated sulfuric acid after vanadic anhydride catalysis reaction, sulfuric acid is made；
E, CO is added into solution isolated step B2It is no longer generated to white precipitate, it is clear after then filtering out white precipitate Drying is washed, alumina powder is crushed to obtain after calcination time 3h at 1100 DEG C of temperature；
F, by alumina powder made from step E and mullite fine powder, kaolin, polystyrene sphere, silica, titanium dioxide Zirconium, chrome green, magnesia and water mixed grinding obtain mixed material, by mixed material through extrusion under vacuum, spontaneously dry 2 It, temperature be 90 DEG C, heat drying time be 2 days after, temperature be 1550 DEG C at, sintering 3h obtain insulating brick；Wherein press weight Part meter is measured, the mixed material includes 23 parts of alumina powder, 38 parts of mullite fine powder, 13 parts of kaolin, polystyrene sphere 5 Part, 4 parts of silica, 2 parts of zirconium dioxide, 2 parts of chrome green, 1 part of magnesia and 27 parts of water；The mesh number of the mixed material For 50-100 mesh.
Embodiment 4：A kind of technique preparing insulating brick coproduction acid, steps are as follows：
A, ardealite, low product bauxite, sodium carbonate and gangue are mixed and is ground and raw material are made, be sent into industrial rotary kiln Clinker is made in roasting time 1h at 1350 DEG C of temperature；Wherein, ardealite and low product bauxite are according to 1:The ratio of 1.5 weight ratios Mixing, caustic soda adding proportion press contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation is 1:1 addition, gangue mix Composition and division in a proportion example is the 25% of raw material total weight；
B, clinker made from step A is consolidated into volume ratio as 5 with liquid:1 carries out water mill dissolution, and is separated by solid-liquid separation；
C, by residue isolated step B through flotation, sulfide is detached to obtain；
D, the step C sulfide isolated is placed under 45% oxygen-enriched environment, 3h is roasted at 1200 DEG C, roast the cigarette of generation Gas is absorbed using the concentrated sulfuric acid after vanadic anhydride catalysis reaction, sulfuric acid is made；
E, CO is added into solution isolated step B2It is no longer generated to white precipitate, it is clear after then filtering out white precipitate Drying is washed, alumina powder is crushed to obtain after calcination time 3h at 1200 DEG C of temperature；
F, by alumina powder made from step E and mullite fine powder, kaolin, polystyrene sphere, silica, titanium dioxide Zirconium, chrome green, magnesia and water mixed grinding obtain mixed material, by mixed material through extrusion under vacuum, spontaneously dry 3 It, temperature be 95 DEG C, heat drying time be 3 days after, temperature be 1450 DEG C at, sintering 4h obtain insulating brick；Wherein press weight Part meter is measured, the mixed material includes 24 parts of alumina powder, 39 parts of mullite fine powder, 14 parts of kaolin, polystyrene sphere 4 Part, 3 parts of silica, 3 parts of zirconium dioxide, 3 parts of chrome green, 2 parts of magnesia and 28 parts of water；The mesh number of the mixed material For 50-100 mesh.
Embodiment 5：A kind of technique preparing insulating brick coproduction acid, steps are as follows：
A, ardealite, low product bauxite, sodium sulphate and anthracite are mixed and is ground and raw material are made, be sent into industrial rotary kiln Clinker is made in roasting time 2h at 1200 DEG C of temperature；Wherein, ardealite and low product bauxite are according to 1:The ratio of 1.7 weight ratios Mixing, caustic soda adding proportion press contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation is 1:1 addition, it is anthracitic mixed Composition and division in a proportion example is the 20% of raw material total weight；
B, clinker made from step A is consolidated into volume ratio as 4 with liquid:1 carries out water mill dissolution, and is separated by solid-liquid separation；
C, by residue isolated step B through flotation, sulfide is detached to obtain；
D, the step C sulfide isolated is placed under 50% oxygen-enriched environment, 4h is roasted at 1100 DEG C, roast the cigarette of generation Gas is absorbed using the concentrated sulfuric acid after vanadic anhydride catalysis reaction, sulfuric acid is made；
E, CO is added into solution isolated step B2It is no longer generated to white precipitate, it is clear after then filtering out white precipitate Drying is washed, alumina powder is crushed to obtain after calcination time 5h at 1200 DEG C of temperature；
F, by alumina powder made from step E and mullite fine powder, kaolin, polystyrene sphere, silica, titanium dioxide Zirconium, chrome green, magnesia and water mixed grinding obtain mixed material, by mixed material through extrusion under vacuum, spontaneously dry 3 It, temperature be 100 DEG C, heat drying time be 3 days after, temperature be 1550 DEG C at, sintering 4h obtain insulating brick；Wherein press weight Part meter is measured, the mixed material includes 25 parts of alumina powder, 40 parts of mullite fine powder, 15 parts of kaolin, polystyrene sphere 5 Part, 4 parts of silica, 3 parts of zirconium dioxide, 3 parts of chrome green, 2 parts of magnesia and 30 parts of water；The mesh number of the mixed material For 50-100 mesh.

Claims (10)

1. a kind of technique preparing insulating brick coproduction acid, which is characterized in that include the following steps：
A, ardealite, low product bauxite, additive and modifying agent are mixed and is ground and raw material are made, be sent into roasting in kiln, be made Clinker；
B, clinker made from step A is dissolved out, and is separated by solid-liquid separation；
C, CO is added into solution isolated step B2It is no longer generated to white precipitate, it is clear after then filtering out white precipitate Drying and calcination are washed, alumina powder is crushed to obtain；
D, by alumina powder made from step C and mullite fine powder, kaolin, polystyrene sphere, silica, titanium dioxide Zirconium, chrome green, magnesia and water mixed grinding obtain mixed material, by mixed material through extrusion under vacuum, spontaneously dry 2-3 days, heat drying, be sintered to obtain insulating brick；
E, by residue isolated step B through flotation, sulfide is detached to obtain；
F, the step E sulfide isolated is placed under the oxygen-enriched environment of 30-50%, 3-5h is roasted at 800-1200 DEG C, roasted The flue gas of generation is absorbed using the concentrated sulfuric acid after vanadic anhydride catalysis reaction, sulfuric acid is made.
2. the technique according to claim 1 for preparing insulating brick coproduction acid, it is characterised in that：In step A, the additive For sodium carbonate, sodium sulphate or caustic soda；The modifying agent is anthracite, carbon or gangue.
3. the technique according to claim 1 for preparing insulating brick coproduction acid, it is characterised in that：In step A, the raw material In, ardealite and low product bauxite are according to 1:The ratio of 0.6-1.7 weight ratios mixes, and additive adding proportion is pressed contained in raw material Na2O and A12O3+Fe2O3The molecular proportion of summation is 1:1 addition, the mixed proportion of modifying agent are the 10-25% of raw material total weight.
4. the technique according to claim 1 for preparing insulating brick coproduction acid, it is characterised in that：In step A, the kiln is work Industry rotary kiln, Industry Tunnel Kiln or industrial shaft kiln.
5. the technique according to claim 1 for preparing insulating brick coproduction acid, it is characterised in that：It is in temperature in step A Roasting time 1-2h at 1000-1350 DEG C.
6. the technique according to claim 1 for preparing insulating brick coproduction acid, it is characterised in that：In step B, the clinker is first It is dissolved out after water mill；It is 4-6 that liquid when dissolution, which consolidates volume ratio,:1.
7. the technique according to claim 1 for preparing insulating brick coproduction acid, it is characterised in that：In step C, calcination is in temperature Calcination time 3-5h at 800-1200 DEG C of degree.
8. the technique according to claim 1 for preparing insulating brick coproduction acid, it is characterised in that：In step D, by weight Meter, the mixed material include 20-25 parts of alumina powder, 35-40 parts of mullite fine powder, 10-15 parts of kaolin, polystyrene 25-30 parts of 3-5 parts of bead, 3-4 parts of silica, 2-3 parts of zirconium dioxide, 2-3 parts of chrome green, 1-2 parts of magnesia and water.
9. the technique according to claim 1 for preparing insulating brick coproduction acid, it is characterised in that：In step D, the mixture The mesh number of material is 50-100 mesh.
10. the technique according to claim 1 for preparing insulating brick coproduction acid, it is characterised in that：In step D, the heating Dry temperature is 80-100 DEG C, and heat drying time is 2-3 days；The sintering is the sintering in the case where temperature is 1450-1550 DEG C 3-4h。
CN201810712941.6A 2018-07-03 2018-07-03 A kind of technique preparing insulating brick coproduction acid Pending CN108623295A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810712941.6A CN108623295A (en) 2018-07-03 2018-07-03 A kind of technique preparing insulating brick coproduction acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810712941.6A CN108623295A (en) 2018-07-03 2018-07-03 A kind of technique preparing insulating brick coproduction acid

Publications (1)

Publication Number Publication Date
CN108623295A true CN108623295A (en) 2018-10-09

Family

ID=63689400

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810712941.6A Pending CN108623295A (en) 2018-07-03 2018-07-03 A kind of technique preparing insulating brick coproduction acid

Country Status (1)

Country Link
CN (1) CN108623295A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060144797A1 (en) * 2002-07-04 2006-07-06 Mcconchie David Processes for the treatment of a waste material having a high ph and/or alkalinity
CN101343185A (en) * 2008-08-20 2009-01-14 江苏耐基炉衬有限公司 High-strength insulating brick and preparation thereof
CN101434403A (en) * 2008-12-16 2009-05-20 重庆市博赛矿业（集团）有限公司 Novel method for processing calx sodica sintered alumina by dry method
CN105776150A (en) * 2014-12-23 2016-07-20 中国科学院过程工程研究所 Method for cooperative activation of fly ash and decomposition of gypsum for recovery of sulfur resource

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060144797A1 (en) * 2002-07-04 2006-07-06 Mcconchie David Processes for the treatment of a waste material having a high ph and/or alkalinity
CN101343185A (en) * 2008-08-20 2009-01-14 江苏耐基炉衬有限公司 High-strength insulating brick and preparation thereof
CN101434403A (en) * 2008-12-16 2009-05-20 重庆市博赛矿业（集团）有限公司 Novel method for processing calx sodica sintered alumina by dry method
CN105776150A (en) * 2014-12-23 2016-07-20 中国科学院过程工程研究所 Method for cooperative activation of fly ash and decomposition of gypsum for recovery of sulfur resource

Similar Documents

Publication Publication Date Title
CN106904849B (en) A kind of system and method using Industrial Solid Waste production sulphate aluminium cement co-producing sulfuric acid
CN103922622B (en) A kind of technique utilizing aluminium ash to produce aluminosulfate cement
CN101475325A (en) Method for producing cement clinker from stainless steel cold rolling dewatered sludge ingredient
CN106810094B (en) The system and method for cement joint production sulphur is prepared using municipal waste and Industrial Solid Waste
CN102838299A (en) Method for producing cement by electrolytic manganese residue and red mud
CN108752005A (en) The technique that a kind of ardealite and red mud prepare composite ceramic material co-producing sulfuric acid
CN108795221A (en) A kind of technique of ardealite and coal ash for manufacturing fireproof coating coproduction acid
CN108623293A (en) The technique that a kind of ardealite and red mud prepare high white pottery ceramic material coproduction acid
CN108623295A (en) A kind of technique preparing insulating brick coproduction acid
CN108484174A (en) A kind of technique using ardealite and red mud relieving haperacidity coproduction porous silicon carbide ceramic
CN108623291A (en) A kind of technique preparing refractory castable for ladle coproduction acid
CN108794024A (en) The technique that a kind of ardealite and low product bauxite prepare saggar repair materials coproduction acid
CN108751966A (en) A kind of technique of ardealite and the hard heat-insulated plate coproduction acid of red mud furnace lining
CN108706555A (en) A kind of technique of ardealite and low product bauxite ceramic cutting tool material coproduction acid
CN108689387A (en) A kind of technique of ardealite and coal ash for manufacturing alumina ceramic material coproduction acid
CN108745332A (en) A kind of method of ardealite and high-sulfur bauxite dechlorination catalyst
CN108558374A (en) A kind of technique of ardealite and coal ash for manufacturing High-abrasion-resisthigh-temperature-resceramic high-temperature-resceramic ceramic coproduction acid
CN108754499A (en) A kind of technique of relieving haperacidity coproduction metal-polishing liquid
CN108689389A (en) A kind of method of ardealite and the organic-silicon-modified fire retardant of flyash relieving haperacidity coproduction
CN108751220A (en) With ardealite and coal ash for manufacturing for p-zeolite and the technique of relieving haperacidity
CN108546148A (en) A kind of technique of ardealite and low product bauxite producing porous ceramic film coproduction acid
CN108793092A (en) A kind of technique preparing daily-use fine coproduction acid
CN108706553A (en) A kind of technique of ardealite and coal ash for manufacturing glass bending modular brick coproduction acid
CN108793954A (en) A kind of technique preparing domestic ceramics mud coproduction acid
CN108546096A (en) A kind of technique of ardealite and red mud preparation high tenacity ceramic nozzle material coproduction acid

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20181009