CN109107525A - More metal zeroth order mercury absorbents of a kind of converter slag containing vanadium and titanium oxides load and preparation method thereof - Google Patents
More metal zeroth order mercury absorbents of a kind of converter slag containing vanadium and titanium oxides load and preparation method thereof Download PDFInfo
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- CN109107525A CN109107525A CN201811114386.3A CN201811114386A CN109107525A CN 109107525 A CN109107525 A CN 109107525A CN 201811114386 A CN201811114386 A CN 201811114386A CN 109107525 A CN109107525 A CN 109107525A
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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
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
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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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
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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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
- B01J20/3204—Inorganic carriers, supports or substrates
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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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
- B01J20/3234—Inorganic material layers
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/60—Heavy metals or heavy metal compounds
- B01D2257/602—Mercury or mercury compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Abstract
The invention discloses a kind of converter slag containing vanadium and titanium oxides to load more metal zeroth order mercury absorbents and preparation method thereof, and this method includes carrying out steam activation processing to converter slag containing vanadium and titanium oxides using steam activation method, the converter slag containing vanadium and titanium oxides after being activated；Various metals are loaded on the converter slag containing vanadium and titanium oxides after the activation using infusion process；By load, there are many converter slag containing vanadium and titanium oxides after the activation of metal, and calcination method to be used to carry out calcination processing up to the zeroth order mercury absorbent.Zeroth order mercury absorbent provided by the present application and preparation method thereof is reuse of solid waste using solid waste converter slag containing vanadium and titanium oxides as carrier.Steam activation converter slag containing vanadium and titanium oxides improve reactivity, converter slag containing vanadium and titanium oxides itself contain the transition/thulium such as certain F e, Co, Mn, Ce, but Fe, Co, Mn, Ce are that glass phase does not have reactivity, after steam activation, reactivity, while increasing specific surface area and porosity can be improved.The adsorbent of preparation adsorbs Hg0The product of generation is HgOAnd HgSO4, more stable in the environment.
Description
Technical field
The present invention relates to mercury absorbent manufacturing technology fields, more particularly to a kind of steam activation solid waste converter slag containing vanadium and titanium oxides
Load more metal low temp zeroth order mercury absorbents and preparation method thereof.
Background technique
Mercury is the heavy metal being uniquely in a liquid state under room temperature, has volatility, persistence, toxicity and bioconcentration, can
Long-distance migration is carried out in the world and is transboundary transmitted, and human health and ecological environment are caused to seriously endanger.
Mercury emissions source is nature and artificial source, and anthropogenic discharge is its main source, and main includes golden metal smelt, combustion
Coal, nonferrous smelting etc..It is reported according to UNEP (United Nations Environment Program), since mankind's activity atmosphere mercury emission is continuously increased, atmosphere in 2013
Mercury emission reaches 2000t.For less mercury emissions, in January, 2013, United Nations Environment Programme passed through " Minamata pact ", China
Also ratify " the Minamata pact about mercury ", system has revised industry mercury emissions limit value.
Currently, based on existing pollution control facility cooperation-removal, individually control less of demercuration technology and being lived with spraying
Property charcoal or modified activated carbon removing based on, investment and operating cost are very high, it is difficult to a wide range of to implement.It is steady to seek low cost environment
Qualitative good scavenger, researcher are to carry out demercuration based on chemical synthesis transition metal and rare earth compound to grind mostly
Study carefully.
(1) coal-fired addition halogen object removing sulfuldioxide
The halogens objects such as KBr, KI, during Hg0 chemisorption, Hg are added in fire coal0It is adsorbed on adsorbent first
Grain object surface, then chemically reacts with halogens objects such as KBr, KI, main chemical reaction are as follows:
Hg0+1/2X2=HgX
Hg0+X2=HgX2
2Hg0+X2+ 4KX=2K2HgX3
Hg0+X2+ 2KX=K2HgX4
HgX+1/2X2+ 2KX=K2HgX4
HgX+1/2X2+ KX=KHgX3
2KX+O2=X2+K2O
X is Br, I in formula.
(2) active carbon removing sulfuldioxide
(3) transition metal and rare earth metal remove
Subtractive process follows Mars-Maessen mechanism, and main reaction can be expressed as follows:
Demercuration is big insufficient there are following three at present:
The first, environmental stability.During the halide such as Br, I remove Hg, the product of generation is HgX2(X Br, I),
And HgX2Secondary pollution is easily formed in aqueous solution with the presence of ion kenel for water-soluble substances.
The second, active carbon: modified activated carbon influences the particulate matter removing that Adsorption of Mercury generates.Active carbon is sprayed in flue gas or is changed
Property active carbon, due to its it is conductive can, electric precipitator is difficult to work normally raw after removing flue dust and cooperation-removal Adsorption of Mercury
At particulate matter, electric precipitator need to be changed to bag filter, increase investment operating cost.
Third, graphene: the carrier loaded absorption transition such as zeolite: rare earth metal is at high cost.Numerous researchers are with graphene:
Zeolite etc. is presoma, by the methods of two step aqua-solution methods by Mn on the Metal Supporteds to carrier such as Ce, operating cost is high.
Summary of the invention
The present invention provides a kind of steam activation solid waste converter slag containing vanadium and titanium oxides to load more metal low temp absorption nonvalent mercury absorption
Agent and preparation method thereof, this method, by the more metals of steam activation back loading, reduce de- using solid waste converter slag containing vanadium and titanium oxides as carrier
Except nonvalent mercury temperature, removal efficiency is improved, reduces operating cost.
The present invention provides following schemes:
A kind of converter slag containing vanadium and titanium oxides load the preparation method of more metal zeroth order mercury absorbents, comprising:
Steam activation processing is carried out to converter slag containing vanadium and titanium oxides using steam activation method, the converter slag containing vanadium and titanium oxides after being activated；
Various metals are loaded on the converter slag containing vanadium and titanium oxides after the activation using infusion process；
By load, there are many converter slag containing vanadium and titanium oxides after the activation of metal, and calcination method to be used to carry out calcination processing up to the zeroth order
Mercury absorbent.
Preferred: the steam activation method includes: that the converter slag containing vanadium and titanium oxides after a certain amount of grinding is taken to be placed in pressure vessel, to
The steam that certain pressure and certain temperature are passed through in the pressure vessel carries out steam activation processing to the converter slag containing vanadium and titanium oxides, obtains
Converter slag containing vanadium and titanium oxides after must activating.
Preferred: it is 0.6~0.8 megapascal, the steam that temperature is 190~220 DEG C that pressure is passed through into the pressure vessel
Steam activation processing is carried out to the converter slag containing vanadium and titanium oxides.
Preferred: the infusion process includes: by the converter slag containing vanadium and titanium oxides investment after the activation equipped with a certain amount of distilled water
It distills in container；It takes more metal nitrates to be dissolved in distilled water and obtains more metal-nitrate solutions；By more metal nitrates
Solution is added in the distillation container, the vanadium after the more Metal Supporteds to the activation for making more metal-nitrate solutions include
On titanium steel slag.
It is preferred: more metal nitrates include at least iron nitrate, cobalt nitrate, manganese nitrate, cerium nitrate with
And zirconium nitrate.
It is preferred: iron nitrate described in more metal nitrates and the cobalt nitrate, manganese nitrate, cerium nitrate
And the molar ratio of zirconium nitrate is respectively 1:1~2:1,1:1~3:2,3:1~3:2 and 3:1~1:1.
It is preferred: more metal-nitrate solutions being added in the distillation container, and the distillation container is heated
It is evaporated to 75~85 DEG C to stirring, the vanadium titanium after the more Metal Supporteds to the activation for making more metal-nitrate solutions include
On steel slag.
It is preferred: load there are many metal activation after converter slag containing vanadium and titanium oxides in activate after converter slag containing vanadium and titanium oxides content be 85~
90%.
Preferred: the calcination method includes that there are many converter slag containing vanadium and titanium oxides after the activation of metal to be put into Muffle furnace by the load
In 420~470 DEG C temperature lower calcination 4~6 hours, mill be screened to 130~145 mesh hereinafter, up to the nonvalent mercury adsorb
Agent.
A kind of zeroth order mercury absorbent that the method prepares, the adsorption temp section of the adsorbent are 150~200
℃。
The specific embodiment provided according to the present invention, the invention discloses following technical effects:
By the invention it is possible to realize that a kind of converter slag containing vanadium and titanium oxides load more metal zeroth order mercury absorbents and preparation method thereof,
Under a kind of implementation, this method may include carrying out steam activation processing to converter slag containing vanadium and titanium oxides using steam activation method, be lived
Converter slag containing vanadium and titanium oxides after change；Various metals are loaded on the converter slag containing vanadium and titanium oxides after the activation using infusion process；There are many loading
Converter slag containing vanadium and titanium oxides after the activation of metal carry out calcination processing using calcination method up to the zeroth order mercury absorbent.It is provided by the present application
Zeroth order mercury absorbent and preparation method thereof is reuse of solid waste using solid waste converter slag containing vanadium and titanium oxides as carrier.Steam
It activating converter slag containing vanadium and titanium oxides and improves reactivity, converter slag containing vanadium and titanium oxides itself contain the transition/thulium such as certain F e, Co, Mn, Ce,
But Fe, Co, Mn, Ce are that glass phase does not have reactivity, after steam activation, reactivity can be improved, while improving specific surface
Long-pending and porosity.The adsorbent of preparation adsorbs Hg0The product of generation is HgOAnd HgSO4, more stable in the environment.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained, shall fall within the protection scope of the present invention.
The embodiment of the invention provides the preparation method that a kind of converter slag containing vanadium and titanium oxides load more metal zeroth order mercury absorbents, this method
Including carrying out steam activation processing to converter slag containing vanadium and titanium oxides using steam activation method, the converter slag containing vanadium and titanium oxides after being activated；The steam is living
Change method includes: that the converter slag containing vanadium and titanium oxides after a certain amount of grinding is taken to be placed in pressure vessel, and a level pressure is passed through into the pressure vessel
The steam of power and certain temperature carries out steam activation processing to the converter slag containing vanadium and titanium oxides, the converter slag containing vanadium and titanium oxides after being activated.To institute
Stating and being passed through pressure in pressure vessel is 0.6~0.8 megapascal, and temperature is that 190~220 DEG C of steam steams the converter slag containing vanadium and titanium oxides
Vapour is activated.
Various metals are loaded on the converter slag containing vanadium and titanium oxides after the activation using infusion process；The infusion process includes: by institute
Converter slag containing vanadium and titanium oxides investment after stating activation is equipped in the distillation container of a certain amount of distilled water；More metal nitrates are taken to be dissolved in distilled water
It is middle to obtain more metal-nitrate solutions；More metal-nitrate solutions are added in the distillation container, more metals are made
On converter slag containing vanadium and titanium oxides after more Metal Supporteds to the activation that nitrate solution includes.More metal nitrates include at least iron
Nitrate, cobalt nitrate, manganese nitrate, cerium nitrate and zirconium nitrate.Iron nitrate described in more metal nitrates
Molar ratio with the cobalt nitrate, manganese nitrate, cerium nitrate and zirconium nitrate be respectively 1:1~2:1,1:1~3:2,
3:1~3:2 and 3:1~1:1.More metal-nitrate solutions are added in the distillation container, and the distillation is held
Device is heated to 75~85 DEG C and is evaporated to stirring, after the more Metal Supporteds to the activation for making more metal-nitrate solutions include
Converter slag containing vanadium and titanium oxides on.
Further, load there are many metal activation after converter slag containing vanadium and titanium oxides in activate after converter slag containing vanadium and titanium oxides content be 85~
90%.The calcination method include the load is put into Muffle furnace 420 there are many converter slag containing vanadium and titanium oxides after the activation of metal~
470 DEG C of temperature lower calcinations, 4~6 hours h mill and are screened to 130~145 mesh hereinafter, up to the zeroth order mercury absorbent.
The application can also provide a kind of zeroth order mercury absorbent that the method prepares, which is characterized in that the suction
Attached dose of adsorption temp section is 150~200 DEG C.
In this method, after converter slag containing vanadium and titanium oxides are ground, first by steam activation, activated partial metallic element improves simultaneously
Specific surface area increases substantially more metals in the dispersibility on converter slag containing vanadium and titanium oxides surface；Again by dipping method by Fe, Co, Mn, Ce,
On more Metal Supporteds to converter slag containing vanadium and titanium oxides such as Zr；It is finally fired and prepares Fe (a) Co (b) Mn (c) Ce (d) Zr (e): converter slag containing vanadium and titanium oxides
Adsorbent.The multi-metal oxygens such as Fe, Co, Mn, Ce, Zr Hg in adsorbent0Generate HgO、HgSO4Equal substances, to remove in flue gas
Hg0。
Converter slag containing vanadium and titanium oxides steam activation, steam pressure are 0.6~0.8MPa, and temperature is 190~220 DEG C.Adsorbent Fe (a) Co
(b) Mn (c) Ce (d) Zr (e): converter slag containing vanadium and titanium oxides, Fe and M (M is respectively Co, Mn, Ce, Zr) molar ratio are 1:1~2:1,1:1~3:
2,3:1~3:2,3:1~1:1, converter slag containing vanadium and titanium oxides content are 85~90%.Adsorbent Fe (a) Co (b) Mn (c) Ce (d) Zr (e): vanadium
Titanium steel slag adsorbs Hg0Cryogenic temperature section be 150~200 DEG C.
To achieve the above object, the present invention uses following technical method:
First, steam activation method: a certain amount of converter slag containing vanadium and titanium oxides are placed in pressure vessel, steam is then passed to.Vanadium titanium steel
After slag steam activation, specific surface area increases, and voidage improves.
Second, dipping method: measures a certain amount of distilled water and converter slag containing vanadium and titanium oxides after steam activation are added；It measures respectively a certain amount of
The nitrate of Fe, Co, Mn, Ce, Zr are dissolved in distilled water, are then added into the distilled water container for containing converter slag containing vanadium and titanium oxides, and heat
It is evaporated in stirring.
Method for calcinating: sample is placed on 450 DEG C of calcining 5h in Muffle furnace, mills and be screened to 140 mesh hereinafter, i.e. by third
Hg is made0Adsorbent.
The preparation method is using converter slag containing vanadium and titanium oxides as carrier, after steam activation converter slag containing vanadium and titanium oxides, by dipping method by Fe, Co, Mn,
On more Metal Supporteds to converter slag containing vanadium and titanium oxides such as Ce, Zr, then it is fired and prepares Fe (a) Co (b) Mn (c) Ce (d) Zr (e)/vanadium titanium steel
Slag adsorbent.Low-temperature flue gas nonvalent mercury (the Hg0) in adsorbent, Fe and M (M is respectively Co, Mn, Ce, Zr) molar ratio are 1:1
~2:1,1:1~3:2,3:1~3:2,3:1~1:1, converter slag containing vanadium and titanium oxides content are 85~90%.The anti-SO of the adsorbent2、H2O performance
Good, preparation method is simple, nonvalent mercury (Hg0) adsorption efficiency 76.2%~94.7%, adsorb Hg0The product of generation is HgOWith
HgSO4, it is small to environmental hazard, using converter slag containing vanadium and titanium oxides as carrier, realize reuse of solid waste, it is low in cost.
In order to method provided by the present application is discussed in detail, describe in detail below by specific embodiment:
Embodiment 1
Firstly, a certain amount of converter slag containing vanadium and titanium oxides are placed in pressure vessel, steam is then passed to, steam pressure 0.6MPa,
Temperature is 190 DEG C.After converter slag containing vanadium and titanium oxides steam activation, specific surface area increases, and voidage improves.
Secondly, measuring a certain amount of distilled water in container, the quantitative steam of first step preparation is added under magnetic stirring
Converter slag containing vanadium and titanium oxides after activation；The nitrate for measuring a certain amount of Fe, Co, Mn, Ce, Zr respectively is dissolved in distilled water, then by nitrate
Solution is slowly added into the distilled water container for containing converter slag containing vanadium and titanium oxides, and is calorified 80 DEG C and be evaporated to stirring.During the preparation process, it controls
Fe processed and M (M is respectively Co, Mn, Ce, Zr) molar ratio are 1:1,1:1,3:1,3:1, and converter slag containing vanadium and titanium oxides content is 85%.
Finally, by second step prepare material, be placed on 450 DEG C of calcining 5h in Muffle furnace, mill be screened to 140 mesh with
Under, obtain Hg0Adsorbent Fe (3) Co (3) Mn (3) Ce (1) Zr (1): converter slag containing vanadium and titanium oxides.
Embodiment 2
Firstly, a certain amount of converter slag containing vanadium and titanium oxides are placed in pressure vessel, steam is then passed to, steam pressure 0.6MPa,
Temperature is 190 DEG C.After converter slag containing vanadium and titanium oxides steam activation, specific surface area increases, and voidage improves.
Secondly, measuring a certain amount of distilled water in container, the quantitative steam of first step preparation is added under magnetic stirring
Converter slag containing vanadium and titanium oxides after activation；The nitrate for measuring a certain amount of Fe, Co, Mn, Ce, Zr respectively is dissolved in distilled water, then by nitrate
Solution is slowly added into the distilled water container for containing converter slag containing vanadium and titanium oxides, and is calorified 80 DEG C and be evaporated to stirring.During the preparation process, it controls
Fe processed and M (M is respectively Co, Mn, Ce, Zr) molar ratio are 1:2,3:2,1:1,3:2, and converter slag containing vanadium and titanium oxides content is 85%.
Finally, by second step prepare material, be placed on 450 DEG C of calcining 5h in Muffle furnace, mill be screened to 140 mesh with
Under, obtain Hg0Adsorbent Fe (3) Co (6) Mn (2) Ce (3) Zr (2): converter slag containing vanadium and titanium oxides.
Embodiment 3
Fe (3) Co (1,2,3) Mn (1) Ce (1) Zr (1)/converter slag containing vanadium and titanium oxides prepared according to the above method, in 6vol.%O2、
2120mg/m3SO2, 8wt.%H2O adsorbs lower condition, and temperature is from adsorbing Hg when being increased to 200 DEG C for 150 DEG C0The efficiency of 600min,
The efficiency of Fe (3) Co (3) Mn (1) Ce (1) Zr (1)/converter slag containing vanadium and titanium oxides is improved from 82.4% to 90.1%, adsorption capacity from
121.46ug/g improving to 146.92ug/g；Fe (3) Co (2) Mn (1) Ce (1) Zr (1)/converter slag containing vanadium and titanium oxides from 78.5% improve to
91.3%, adsorption capacity is improved from 115.75ug/g to 134.58ug/g；And Fe (3) Co (1) Mn (1) Ce (1) Zr (1)/vanadium titanium
Steel slag is improved from 73.4% to 87.6%, and adsorption capacity is improved from 103.15ug/g to 109.65ug/g.Meanwhile temperature is from 150
When DEG C being increased to 200 DEG C, Hg0Adsorption efficiency increases slow.
Embodiment 4
Fe (3) Co (1) Mn (1,2,3) Ce (1) Zr (1)/converter slag containing vanadium and titanium oxides prepared according to the above method, in 6vol.%O2、
2120mg/m3SO2, 8wt.%H2O adsorbs lower condition, temperature from the efficiency for adsorbing 600min when being increased to 200 DEG C for 150 DEG C, with
The adsorption efficiency of the raising of Mn doping, Fe (3) Co (1) Mn (1,2,3) Ce (1) Zr (1)/converter slag containing vanadium and titanium oxides improves.Fe(3)Co
(1) efficiency of Mn (3) Ce (1) Zr (1)/converter slag containing vanadium and titanium oxides is improved from 86.8% to 94.7%；Fe(3)Co(1)Mn(2)Ce(1)Zr
(1)/converter slag containing vanadium and titanium oxides are improved from 76.2% to 85.3%；And Fe (3) Co (1) Mn (1) Ce (1) Zr (1)/converter slag containing vanadium and titanium oxides are from 70.4%
It improves to 78.3%.
In short, zeroth order mercury absorbent provided by the present application and preparation method thereof, using solid waste converter slag containing vanadium and titanium oxides conduct
Carrier is reuse of solid waste.Steam activation converter slag containing vanadium and titanium oxides improve reactivity, converter slag containing vanadium and titanium oxides itself contain certain F e, Co,
Transition/the thulium such as Mn, Ce, but Fe, Co, Mn, Ce are that glass phase does not have reactivity, after steam activation, can be mentioned
High reaction activity, while increasing specific surface area and porosity.The adsorbent of preparation adsorbs Hg0The product of generation is HgOAnd HgSO4,
It is more stable in the environment.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (10)
1. the preparation method that a kind of converter slag containing vanadium and titanium oxides load more metal zeroth order mercury absorbents, which is characterized in that the described method includes: adopting
Steam activation processing is carried out to converter slag containing vanadium and titanium oxides with steam activation method, the converter slag containing vanadium and titanium oxides after being activated；It will be a variety of using infusion process
On converter slag containing vanadium and titanium oxides after Metal Supported to the activation；By load, there are many converter slag containing vanadium and titanium oxides after the activation of metal to use calcination method
Calcination processing is carried out up to the zeroth order mercury absorbent.
2. the preparation method that converter slag containing vanadium and titanium oxides according to claim 1 load more metal zeroth order mercury absorbents, which is characterized in that
The steam activation method includes: that the converter slag containing vanadium and titanium oxides after a certain amount of grinding is taken to be placed in pressure vessel, into the pressure vessel
The steam for being passed through certain pressure and certain temperature carries out steam activation processing to the converter slag containing vanadium and titanium oxides, the vanadium titanium after being activated
Steel slag.
3. the preparation method that converter slag containing vanadium and titanium oxides according to claim 2 load more metal zeroth order mercury absorbents, which is characterized in that
Be passed through into the pressure vessel pressure be 0.6~0.8 megapascal, temperature be 190~220 DEG C steam to the converter slag containing vanadium and titanium oxides into
Row steam activation processing.
4. the preparation method that converter slag containing vanadium and titanium oxides according to claim 1 load more metal zeroth order mercury absorbents, which is characterized in that
The infusion process includes: by the converter slag containing vanadium and titanium oxides investment after the activation equipped in the distillation container of a certain amount of distilled water；It takes more
Metal nitrate, which is dissolved in distilled water, obtains more metal-nitrate solutions；The distillation is added in more metal-nitrate solutions
In container, on the converter slag containing vanadium and titanium oxides after the more Metal Supporteds to the activation for making more metal-nitrate solutions include.
5. the preparation method that converter slag containing vanadium and titanium oxides according to claim 4 load more metal zeroth order mercury absorbents, which is characterized in that
More metal nitrates include at least iron nitrate, cobalt nitrate, manganese nitrate, cerium nitrate and zirconium nitrate.
6. the preparation method that converter slag containing vanadium and titanium oxides according to claim 5 load more metal zeroth order mercury absorbents, which is characterized in that
Iron nitrate described in more metal nitrates and the cobalt nitrate, manganese nitrate, cerium nitrate and zirconium nitrate
Molar ratio is respectively 1:1~2:1,1:1~3:2,3:1~3:2 and 3:1~1:1.
7. the preparation method that converter slag containing vanadium and titanium oxides according to claim 4 load more metal zeroth order mercury absorbents, which is characterized in that
More metal-nitrate solutions are added in the distillation container, and the distillation container is heated to 75~85 DEG C to stirring
It is evaporated, on the converter slag containing vanadium and titanium oxides after the more Metal Supporteds to the activation for making more metal-nitrate solutions include.
8. the preparation method that converter slag containing vanadium and titanium oxides according to claim 1 load more metal zeroth order mercury absorbents, which is characterized in that
Load is 85~90% there are many converter slag containing vanadium and titanium oxides content after activating in the converter slag containing vanadium and titanium oxides after the activation of metal.
9. the preparation method that converter slag containing vanadium and titanium oxides according to claim 1 load more metal zeroth order mercury absorbents, which is characterized in that
The calcination method includes that there are many converter slag containing vanadium and titanium oxides after the activation of metal to be put into Muffle furnace at 420~470 DEG C by the load
It temperature lower calcination 4~6 hours, mills and is screened to 130~145 mesh hereinafter, up to the zeroth order mercury absorbent.
10. a kind of zeroth order mercury absorbent that claim 1 to 9 any one the method prepares, which is characterized in that described
The adsorption temp section of adsorbent is 150~200 DEG C.
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