CN107098614A - A kind of curing agent and the curing of titanium extraction tailings for titanium extraction tailings - Google Patents
A kind of curing agent and the curing of titanium extraction tailings for titanium extraction tailings Download PDFInfo
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- CN107098614A CN107098614A CN201710490956.8A CN201710490956A CN107098614A CN 107098614 A CN107098614 A CN 107098614A CN 201710490956 A CN201710490956 A CN 201710490956A CN 107098614 A CN107098614 A CN 107098614A
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- extraction tailings
- agent
- titanium extraction
- curing agent
- curing
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 239000010936 titanium Substances 0.000 title claims abstract description 91
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 91
- 238000000605 extraction Methods 0.000 title claims abstract description 83
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 105
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical group [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 28
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000004078 waterproofing Methods 0.000 claims abstract description 22
- 239000000292 calcium oxide Substances 0.000 claims abstract description 19
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 16
- 238000007711 solidification Methods 0.000 claims abstract description 15
- 230000008023 solidification Effects 0.000 claims abstract description 15
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims description 26
- 235000012255 calcium oxide Nutrition 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 11
- 239000002893 slag Substances 0.000 claims description 9
- 239000011505 plaster Substances 0.000 claims description 6
- 229910052602 gypsum Inorganic materials 0.000 claims description 5
- 239000010440 gypsum Substances 0.000 claims description 5
- 238000009628 steelmaking Methods 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000006071 cream Substances 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 238000009776 industrial production Methods 0.000 abstract description 6
- 230000002209 hydrophobic effect Effects 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 5
- 239000011521 glass Substances 0.000 abstract description 3
- 239000002243 precursor Substances 0.000 abstract description 3
- 239000011241 protective layer Substances 0.000 abstract description 3
- 239000000376 reactant Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 13
- 238000002386 leaching Methods 0.000 description 11
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 10
- 239000000460 chlorine Substances 0.000 description 10
- 229910052801 chlorine Inorganic materials 0.000 description 10
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 239000000843 powder Substances 0.000 description 5
- 238000007596 consolidation process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- ZHZFKLKREFECML-UHFFFAOYSA-L calcium;sulfate;hydrate Chemical compound O.[Ca+2].[O-]S([O-])(=O)=O ZHZFKLKREFECML-UHFFFAOYSA-L 0.000 description 2
- 238000005660 chlorination reaction Methods 0.000 description 2
- 239000010433 feldspar Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052611 pyroxene Inorganic materials 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 150000001399 aluminium compounds Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 235000012241 calcium silicate Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0042—Powdery mixtures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
-
- 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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/14—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements
- C04B28/142—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements
- C04B28/144—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing calcium sulfate cements containing synthetic or waste calcium sulfate cements the synthetic calcium sulfate being a flue gas desulfurization product
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A kind of curing agent and the curing of titanium extraction tailings for titanium extraction tailings, is related to field of Environment Protection, the curing agent includes：5~30 parts of exciting agent, 5~30 parts of reinforcing agent, 0.5~1 part of waterproofing agent.Wherein, the main component active calcium oxide of exciting agent, the main component of reinforcing agent is calcium sulfate.Calcium oxide, calcium sulfate in the curing agent can efficiently generate induration with the glass precursor reactant in titanium extraction tailings.Meanwhile, waterproofing agent forms hydrophobic protective layer on induration surface, effectively can prevent harmful element from oozing out.The reasonable mixture ratio of the curing agent, obtained induration has intensity high, the characteristics of harmful element oozes out low.Titanium extraction tailings solidification is carried out using above-mentioned curing agent, its is easy to operate, without complicated equipment, efficiently titanium extraction tailings can be solidified by simply mixing standing, the induration of high intensity is obtained, is adapted to use matching somebody with somebody for operation field, suitably promotes the use of in industrial production.
Description
Technical field
The present invention relates to field of Environment Protection, in particular to a kind of curing agent and titanium extraction tailings for titanium extraction tailings
Curing.
Background technology
Titanium extraction tailings are titanium-containing blast furnace slag remaining residues after high temperature cabonization-low temperature chlorination carries titanium, if by annual
1,000,000 tons of blast furnace slag calculating are handled, the titanium extraction tailings close to 1,000,000 tons can be produced.
The main thing of titanium extraction tailings is mutually pyroxene, feldspar vitreous substance, and contains the harmful elements such as chlorine, manganese.If
It is directly stored up to processing without processing, the harmful element in titanium extraction tailings can be oozed out, and surrounding environment is impacted.
At present, on titanium extraction tailings innoxious governance and the document and patent of comprehensive utilization seldom, related governing measure is very deficient.
It is badly in need of a kind of new efficient processing method of exploitation, to handle titanium extraction tailings.
The content of the invention
It is an object of the invention to provide a kind of curing agent for titanium extraction tailings, it can be efficiently easily with carrying titanium tail
Slag reacts to form induration, and the induration has intensity high, the characteristics of harmful element oozes out low.
Another object of the present invention is to provide a kind of curing of titanium extraction tailings, its technique is simple, easy to operate, nothing
Complicated equipment is needed, efficiently titanium extraction tailings can be solidified by easy steps, obtain the induration of high intensity, is adapted to promote
It is applied in industrial production.
What embodiments of the invention were realized in：
A kind of curing agent for titanium extraction tailings, is counted by weight, including：5~30 parts of exciting agent, reinforcing agent 5~30
Part, 0.5~1 part of waterproofing agent；Wherein, the main component of exciting agent is active calcium oxide, and the main component of reinforcing agent is calcium sulfate.
A kind of curing of titanium extraction tailings, it includes：
The above-mentioned curing agent for titanium extraction tailings is mixed with titanium extraction tailings, water, stirring obtains mixture slurry；By mixing slurry
Body stands solidification.
The beneficial effect of the embodiment of the present invention is：
The invention provides a kind of curing agent for titanium extraction tailings, including：5~30 parts of exciting agent, reinforcing agent 5~30
Part, 0.5~1 part of waterproofing agent.Wherein, the main component of exciting agent is active calcium oxide, and the main component of reinforcing agent is calcium sulfate.
Calcium oxide, calcium sulfate in the curing agent can efficiently generate induration with the glass precursor reactant in titanium extraction tailings.Meanwhile,
Waterproofing agent forms hydrophobic protective layer on induration surface, effectively can prevent harmful element from oozing out.The reasonable mixture ratio of the curing agent, is obtained
To induration have intensity high, the characteristics of harmful element oozes out low.
The present invention also provides a kind of curing of titanium extraction tailings, and its technique is simple, easy to operate, is set without complicated
It is standby, efficiently titanium extraction tailings can be solidified by simply mixing standing, obtain the induration of high intensity, be adapted to operation field
I.e. with i.e. use, suitably promote the use of in industrial production.
Embodiment
, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer
Technical scheme be clearly and completely described.Unreceipted actual conditions person, builds according to normal condition or manufacturer in embodiment
The condition of view is carried out.Agents useful for same or the unreceipted production firm person of instrument, are the conventional production that can be obtained by commercially available purchase
Product.
The a kind of of the embodiment of the present invention is entered for the curing agent of titanium extraction tailings and the curing of titanium extraction tailings below
Row is illustrated.
The embodiments of the invention provide a kind of curing agent for titanium extraction tailings, count by weight, including：Exciting agent 5
~30 parts, 5~30 parts of reinforcing agent, 0.5~2 part of waterproofing agent.Wherein, the main component of exciting agent is active calcium oxide, reinforcing agent
Main component be calcium sulfate.
Titanium extraction tailings are titanium-containing blast furnace slag remaining residue after high temperature cabonization, low temperature chlorination carry titanium, its main thing phase
It is pyroxene, feldspar vitreous substance.So, the characteristic of titanium extraction tailings in itself determines that carrying titanium residue has preferable volcanic ash
Activity.That is, the vitreum such as silicon compound therein and aluminium compound, can generate calcium silicates etc. solidifying with calcium hydroxide reaction
Glue, and then solidify.
Exciting agent is the material containing active calcium oxide, and these exciting agents can be produced alkalogenic after being mixed with water
Calcium hydroxide, is reacted, and solidify so as to excite and carry titanium residue.Preferably, exciting agent includes steel-making lime, quick lime
At least one of dedusting ash and slag.Contain substantial amounts of calcium oxide in these materials, and these materials are industrial production
In conventional solid residue, itself be also required to spend substantial amounts of manpower and materials to be purged.Can as exciting agent using these materials
To realize the recycling of waste resource, the purpose of the treatment of wastes with processes of wastes against one another is reached.
Preferably, the content of calcium oxide is more than 75wt% in exciting agent.Inventor has found by creative work, when exciting
Calcium oxide content in agent is reached after 75wt%, can reach preferably stimulation effect, improves curing efficiency, and make what is obtained to consolidate
Knot body intensity is more preferable.
Reinforcing agent is the material containing calcium sulfate, and after mixing with water, water suction generates calcium sulfate hydrate to calcium sulfate, and puts
Go out substantial amounts of heat, calcium sulfate hydrate is interconnected into blocks of solid, increase the intensity of induration.Preferably, reinforcing agent bag
Include at least one of titanium gypsum, desulfurated plaster, ardealite, fluorgypsum and soda gypsum.These materials are main using calcium sulfate
Composition, meanwhile, these materials are the conventional solid residue in industrial production, using these materials as reinforcing agent, equally can be with
Play the purpose of waste resource recycling.
Preferably, the content of calcium sulfate is more than 80wt% in reinforcing agent.Inventor has found by creative work, when exciting
The content of calcium sulfate in agent reaches after 80wt% that the efficiency of solidification is higher, solidification effect preferably, obtained concretion body strength compared with
By force.
Further, waterproofing agent is waterproofing agent of organosilicon.Main component silicones in waterproofing agent of organosilicon,
Its induration surface orientation arrange, by hydrophobic grouping-alkyl outwardly, and silicon inwardly with the oxide bonding in induration,
So as to form stable hydrophobic layer on induration surface, make the shipwreck of outer layer to enter in induration, to increase induration
Stability.Meanwhile, the harmful element in induration is in the case where being difficult to touch water, and the probability oozed out is lower, pollutes
Probability it is smaller.
The granularity of curing agent is 200~300 mesh.In order to control the accuracy of each group distribution ratio in curing agent, it usually needs
Each component is ground respectively and 200~300 mesh sieves are crossed, then the powder obtained after sieving is mixed.Carry titanium residue
Curing agent is fabricated to the powder close with its granularity by particle size range generally in 80~400 mesh, is conducive to the uniform mixed of the two
Close, so as to get induration, everywhere consolidation be more uniformly distributed, each component combine it is more close, the intensity of induration is higher.
Present invention also offers a kind of curing of titanium extraction tailings, it includes：
S1. the above-mentioned curing agent for titanium extraction tailings is mixed with titanium extraction tailings, water, stirring obtains mixture slurry.
Wherein, the quality of curing agent is the 10~50% of titanium extraction tailings, and the consumption of water is curing agent and the total matter of titanium extraction tailings
The 25~35% of amount.Inventor is by performing creative labour discovery, the solidification process carried out in the proportion, each component
Collocation is preferable, and curing efficiency is high, and the quality of solidification is good, and obtained induration can possess higher intensity.
Present invention also offers a kind of curing of titanium extraction tailings, in addition to：
S2. mixture slurry is stood and solidified.
Mixture slurry stands the condition solidified：48~72h is stood at room temperature.Inventor by creative work find,
Mixture slurry is stood after 48h, mixture slurry can complete consolidation well, the compression strength of induration reaches 4.5MPa, together
When, over time, the compression strength of induration can also further increase, and be finally reached more than 20MPa.Meanwhile, pass through
Leaching experiment, it is found that the leaching rate of chlorine is less than 1%, other harmful element leaching rate controls are in standard claimed range, consolidation effect
Fruit is good.
From the point of view of actual production process, at present, titanium extraction tailings powdery is stored up, and stores up about 25 yuan/ton of cost.Using this hair
The curing that bright embodiment provides a kind of titanium extraction tailings is carried out after consolidation stores up, and cost can be controlled below 40 yuan/ton,
Although cost slightly has raising, environmentally friendly risk can be significantly reduced, environmental benefit and social benefit are notable.
The feature and performance to the present invention are described in further detail with reference to embodiments.
Embodiment 1
A kind of curing agent for titanium extraction tailings is present embodiments provided, is counted by weight, it includes：Quick lime dedusting
10 parts of ash, 10 parts of desulfurated plaster, 1 part of waterproofing agent of organosilicon.
A kind of method solidified with above-mentioned curing agent to titanium extraction tailings is present embodiments provided, including：
S1. 20kg titanium extraction tailings, 4.4kg curing agent are mixed with 6kg water, stirring obtains mixture slurry.
S2., mixture slurry is stood to 48h solidifications at room temperature, induration is obtained.
The compression strength of the induration reaches 5MPa.The leaching rate of chlorine is less than 1%, and pH value is other harmful between 6~7
Thing, which is leached, meets standard requirement.
Embodiment 2
A kind of curing agent for titanium extraction tailings is present embodiments provided, is counted by weight, it includes：Steel-making slag powder 30
Part, 5 parts of titanium gypsum, 2 parts of waterproofing agent of organosilicon.
A kind of method solidified with above-mentioned curing agent to titanium extraction tailings is present embodiments provided, including：
S1. 20kg titanium extraction tailings, 7.4kg curing agent are mixed with 6.4kg water, stirring obtains mixture slurry.
S2., mixture slurry is stood to 48h solidifications at room temperature, induration is obtained.
The compression strength of the induration reaches 4.5MPa.The leaching rate of chlorine is less than 1%, and pH value is between 7~8, Qi Tayou
Evil thing, which is leached, meets standard requirement.
Embodiment 3
A kind of curing agent for titanium extraction tailings is present embodiments provided, is counted by weight, it includes：Steel-making slag powder 20
Part, 15 parts of desulfurated plaster, 1 part of waterproofing agent of organosilicon.
A kind of method solidified with above-mentioned curing agent to titanium extraction tailings is present embodiments provided, including：
S1. 20kg titanium extraction tailings, 7kg curing agent are mixed with 5.6kg water, stirring obtains mixture slurry.
S2., mixture slurry is stood to 48h solidifications at room temperature, induration is obtained.
The compression strength of the induration reaches 4.8MPa.The leaching rate of chlorine is less than 1%, and pH value is between 7~8, Qi Tayou
Evil thing, which is leached, meets standard requirement.
Embodiment 4
A kind of curing agent for titanium extraction tailings is present embodiments provided, is counted by weight, it includes：Steel-making slag powder 10
Part, 20 parts of desulfurated plaster, 1 part of waterproofing agent of organosilicon.
A kind of method solidified with above-mentioned curing agent to titanium extraction tailings is present embodiments provided, including：
S1. 20kg titanium extraction tailings, 7kg curing agent are mixed with 5kg water, stirring obtains mixture slurry.
S2., mixture slurry is stood to 48h solidifications at room temperature, induration is obtained.
The compression strength of the induration reaches 5.2MPa.The leaching rate of chlorine be less than 1%, pH value between 6.5~7.5, its
Its nuisance, which is leached, meets standard requirement.
Embodiment 5
A kind of curing agent for titanium extraction tailings is present embodiments provided, is counted by weight, it includes：Make steel lime 5
Part, 30 parts of ardealite, 0.5 part of waterproofing agent of organosilicon.
A kind of method solidified with above-mentioned curing agent to titanium extraction tailings is present embodiments provided, including：
S1. 20kg titanium extraction tailings, 2kg curing agent are mixed with 7kg water, stirring obtains mixture slurry.
S2., mixture slurry is stood to 72h solidifications at room temperature, induration is obtained.
The compression strength of the induration reaches 5.5MPa.The leaching rate of chlorine is less than 1%, and pH value is between 6~7, Qi Tayou
Evil thing, which is leached, meets standard requirement.
Embodiment 6
A kind of curing agent for titanium extraction tailings is present embodiments provided, is counted by weight, it includes：Make steel lime 25
Part, 5 parts of fluorgypsum, 2 parts of waterproofing agent of organosilicon.
A kind of method solidified with above-mentioned curing agent to titanium extraction tailings is present embodiments provided, including：
S1. 20kg titanium extraction tailings, 10kg curing agent are mixed with 6kg water, stirring obtains mixture slurry.
S2., mixture slurry is stood to 72h solidifications at room temperature, induration is obtained.
The compression strength of the induration reaches 6.6MPa.The leaching rate of chlorine is less than 1%, and pH value is between 6~7, Qi Tayou
Evil thing, which is leached, meets standard requirement.
Embodiment 7
A kind of curing agent for titanium extraction tailings is present embodiments provided, is counted by weight, it includes：Quick lime dedusting
15 parts of ash, 15 parts of soda gypsum, 2 parts of waterproofing agent of organosilicon.
A kind of method solidified with above-mentioned curing agent to titanium extraction tailings is present embodiments provided, including：
S1. 20kg titanium extraction tailings, 7kg curing agent are mixed with 5kg water, stirring obtains mixture slurry.
S2., mixture slurry is stood to 72h solidifications at room temperature, induration is obtained.
The compression strength of the induration reaches 6.3MPa.The leaching rate of chlorine is less than 1%, and pH value is between 8~9, Qi Tayou
Evil thing, which is leached, meets standard requirement.
Embodiment 8
A kind of curing agent for titanium extraction tailings is present embodiments provided, is counted by weight, it includes：Quick lime dedusting
20 parts of ash, 20 parts of desulfurated plaster, 0.5 part of waterproofing agent of organosilicon.
A kind of method solidified with above-mentioned curing agent to titanium extraction tailings is present embodiments provided, including：
S1. 20kg titanium extraction tailings, 5kg curing agent are mixed with 6kg water, stirring obtains mixture slurry.
S2., mixture slurry is stood to 60h solidifications at room temperature, induration is obtained.
The compression strength of the induration reaches 5.8MPa.The leaching rate of chlorine be less than 1%, pH value between 6.5~7.5, its
Its nuisance, which is leached, meets standard requirement.
In summary, the invention provides a kind of curing agent for titanium extraction tailings, including：5~30 parts of exciting agent, enhancing
5~30 parts of agent, 0.5~1 part of waterproofing agent.Wherein, the main component active calcium oxide of exciting agent, the main component of reinforcing agent is sulphur
Sour calcium.Calcium oxide, calcium sulfate in the curing agent can efficiently generate induration with the glass precursor reactant in titanium extraction tailings.
Meanwhile, waterproofing agent forms hydrophobic protective layer on induration surface, effectively can prevent harmful element from oozing out.The proportioning of the curing agent is closed
Reason, obtained induration has intensity high, the characteristics of harmful element oozes out low.
The present invention also provides a kind of curing of titanium extraction tailings, and its technique is simple, easy to operate, is set without complicated
It is standby, efficiently titanium extraction tailings can be solidified by simply mixing standing, obtain the induration of high intensity, be adapted to operation field
I.e. with i.e. use, suitably promote the use of in industrial production.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in
Within protection scope of the present invention.
Claims (10)
1. a kind of curing agent for titanium extraction tailings, it is characterised in that count by weight, including：5~30 parts of exciting agent, increases
Strong 5~30 parts of agent, 0.5~2 part of waterproofing agent；Wherein, the main component of the exciting agent is active calcium oxide, the reinforcing agent
Main component is calcium sulfate.
2. the curing agent according to claim 1 for titanium extraction tailings, it is characterised in that it is white that the exciting agent includes steel-making
At least one of ash, quick lime dedusting ash and slag.
3. the curing agent according to claim 2 for titanium extraction tailings, it is characterised in that calcium oxide in the exciting agent
Content is more than 75wt%.
4. the curing agent according to claim 1 for titanium extraction tailings, it is characterised in that the reinforcing agent includes titanium stone
At least one of cream, desulfurated plaster, ardealite, fluorgypsum and soda gypsum.
5. the curing agent according to claim 4 for titanium extraction tailings, it is characterised in that calcium sulfate in the reinforcing agent
Content is more than 80wt%.
6. the curing agent for titanium extraction tailings according to claim 4 or 5, it is characterised in that the waterproofing agent is organic
Silicon waterproofing agent.
7. the curing agent according to claim 1 for titanium extraction tailings, it is characterised in that the granularity of the curing agent is
200~300 mesh.
8. a kind of curing of titanium extraction tailings, it is characterised in that including：
The curing agent for titanium extraction tailings described in any one of claim 1~7 is mixed with titanium extraction tailings, water, stirring is obtained
Mixture slurry；The mixture slurry is stood and solidified.
9. the curing of titanium extraction tailings according to claim 8, it is characterised in that the quality of the curing agent is described
The 10~50% of titanium extraction tailings, the consumption of the water is the 25~35% of the curing agent and the titanium extraction tailings gross mass.
10. the curing of titanium extraction tailings according to claim 8, it is characterised in that the mixture slurry stands solidification
Condition be：48~72h is stood at room temperature.
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| CN201710490956.8A CN107098614A (en) | 2017-06-23 | 2017-06-23 | A kind of curing agent and the curing of titanium extraction tailings for titanium extraction tailings |
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