CN108545989A - The method of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant - Google Patents
The method of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant Download PDFInfo
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- CN108545989A CN108545989A CN201810711195.9A CN201810711195A CN108545989A CN 108545989 A CN108545989 A CN 108545989A CN 201810711195 A CN201810711195 A CN 201810711195A CN 108545989 A CN108545989 A CN 108545989A
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- Prior art keywords
- ardealite
- fire prevention
- sulfur bauxite
- special assistant
- filler special
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Classifications
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- 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
-
- 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
- C01B17/78—Preparation by contact processes characterised by the catalyst used
- C01B17/79—Preparation by contact processes characterised by the catalyst used containing vanadium
-
- 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
- C04B7/00—Hydraulic cements
- C04B7/02—Portland cement
Abstract
The invention discloses a kind of methods of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant, are to mix and grind that raw material are made by high-sulfur bauxite, ardealite, additive and modifying agent, in raw material；Raw material are sent into kiln and are roasted, clinker is made；After clinker is ground plus it is water-soluble go out, be then separated by solid-liquid separation, flotation agent be added into isolated residue, floatingly selects sulfide, the flue gas generated after sulfide is roasted is catalyzed with vanadic anhydride, relieving haperacidity after then being absorbed with the concentrated sulfuric acid；Isolated solution heating evaporation is obtained into sodium aluminate crystallization, aluminic acid sodium powder is ground into after sodium aluminate crystallization is dried, it is stirred evenly after aluminic acid sodium powder, calcium stearate, sodium carboxymethylcellulose, polystyrene emulsion and calcium oxide are mixed, must prevent fires filler special assistant.The present invention has fire prevention filler special assistant production cost low, and performance is good, and ardealite and high-sulfur bauxite processing cost are low, the high feature of added value.
Description
Technical field
The present invention relates to a kind of methods of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant, belong to
Field of metallurgy and chemical engineering.
Background technology
In order to mitigate the quality of construction material such as brick, prefabricated board etc., the property such as its fire prevention, heat-insulated, sound insulation and antivibration are improved
Can, it is typically now that filler is added inside this kind of building materials at present.And inorganic filler is as one of which, generally by cement,
Polypropylene fibre, water-reducing agent and auxiliary agent add water to mix, and have fire prevention and other performances well.And it is general to fill agent aid
It is to be formulated after mixing other components based on sodium aluminate.But now current industrial sodium aluminate is mainly given birth to by Bayer process
Production is made, and lower and lower with the grade of bauxite, the production cost of sodium aluminate is also higher and higher, and market price has been up to 10,000
Yuan/ton or so, therefore, considerably increase the production cost of auxiliary agent.
And ardealite be in phosphoric acid production with sulfuric acid treating phosphorite when the solid slag that generates, main component is calcium sulfate
（CaSO4）, China discharges about 20,000,000 tons of ardealite, adds up nearly hundred million tons of discharge capacity every year.Utilization rate of the ardealite in terms of building materials
Less than 5%, a large amount of gypsum stack land occupations seriously pollute environment.High-sulfur bauxite refers to the alumina that sulfur content is more than 0.7%
Mine, sulphur therein mainly exist in the form of pyrite and its isomers marcasite and melnikovite.In being generated in aluminium oxide,
After sulfur content reaches a certain level, it will arrive to production and greatly endanger, or even make production that can not carry out, therefore, such as
High-sulfur bauxite is used as alumina producing by fruit, then must carry out desulfurization process, and still, either preroast desulfurization, flotation is de-
Other sulfur removal technologies such as sulphur, additive desulfurization, the desulfurization of decomposition nut liquid freezing and crystallizing or evaporation-timeliness-separation desulfurization, are deposited
In not high, expensive, sulfur removal technology the is complicated defect of desulfuration efficiency.
Due to the defect that ardealite high-sulfur bauxite processing cost is high or direct products added value is low, leverage
The application of ardealite and high-sulfur bauxite, and if reacted using ardealite and high-sulfur bauxite as primary raw material, pass through
Simple technique processing can improve added value of product, it will substantially reduce the processing cost of ardealite and high-sulfur bauxite, together
Its added value of Shi Tigao, the problem of environmental pollution to solve ardealite and high-sulfur bauxite provide a new thinking.And existing mesh
Before, the technique that relieving haperacidity co-production fire prevention filler special assistant is integrated by ardealite and high-sulfur bauxite has not been reported.
Goal of the invention
The object of the present invention is to provide the sides of a kind of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant
Method.The present invention has fire prevention filler special assistant production cost low, and performance is good, and ardealite and high-sulfur bauxite processing cost
It is low, the high feature of added value.
Technical scheme of the present invention
A kind of method of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant, is by high-sulfur bauxite, phosphorus
Gypsum, additive and modifying agent, which are mixed and ground, is made raw material, and in raw material, ardealite and high-sulfur bauxite are according to weight ratio 1：
0.6-1.4 is mixed, and additive adding proportion presses contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation is 1:1 addition, changes
Property agent adding proportion be raw material total weight 10-25%；Raw material are sent into kiln and are roasted, clinker is made；Add after clinker is ground
It is water-soluble go out, be then separated by solid-liquid separation, flotation agent be added into isolated residue, floatingly selects sulfide, sulfide is roasted
The flue gas generated after burning is catalyzed with vanadic anhydride, relieving haperacidity after then being absorbed with the concentrated sulfuric acid；Isolated solution is heated and is steamed
Sodium aluminate crystallization is sent out to obtain, aluminic acid sodium powder is ground into after sodium aluminate crystallization is dried, aluminic acid sodium powder, calcium stearate, carboxymethyl is fine
It is stirred evenly after the plain sodium of dimension, polystyrene emulsion and calcium oxide mixing, must prevent fires filler special assistant.
The method of high-sulfur bauxite and ardealite relieving haperacidity coproduction above-mentioned fire prevention filler special assistant, in the raw material,
Ardealite and high-sulfur bauxite are according to weight ratio 1：0.9 mixing.
The method of high-sulfur bauxite and ardealite relieving haperacidity coproduction above-mentioned fire prevention filler special assistant, in the raw material,
The mixed proportion of modifying agent is the 17% of raw material total weight.
The method of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant above-mentioned, the high-sulfur alumina
Sulfur content is higher than 0.7% in mine.
The method of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant above-mentioned, the additive are
Sodium sulphate, sodium carbonate or caustic soda；The modifying agent is anthracite, carbon or gangue.
The method of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant above-mentioned, the kiln are industry
Rotary kiln, Industry Tunnel Kiln or industrial shaft kiln；Calcination temperature is 1000-1350 DEG C, and roasting time is 0.5-2 hours.
The method of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant above-mentioned, the Clinker digestion
When liquid consolidate volume ratio be 4-6:1.
The method of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant above-mentioned, the sulfide are
It is placed under the oxygen-enriched environment of 35-50%, is roasted 1-5 hours at 800-1000 DEG C.
The method of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant above-mentioned, the fire prevention filling
Agent special assistant by weight, by 30-40 parts of aluminic acid sodium powder, 15-20 parts of calcium stearate, 8-12 parts of sodium carboxymethylcellulose,
4-7 parts of compositions of 6-8 parts of polystyrene emulsion and calcium oxide.
The method of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant above-mentioned, the fire prevention filling
Agent special assistant by weight, by 35 parts of aluminic acid sodium powder, 18 parts of calcium stearate, 10 parts of sodium carboxymethylcellulose, polystyrene
6 parts of compositions of 7 parts of lotion and calcium oxide.
Advantageous effect
1, the present invention is roasted by using ardealite and high-sulfur bauxite as primary raw material, being added after appropriate additive and modifying agent to react
It burns, can be prepared by sodium aluminate solution after obtained clinker water mill is dissolved out, sodium aluminate solution is evaporated into the aluminic acid after drying grinding
Sodium, can be prepared by fire prevention filler special assistant after then mixing sodium aluminate with other components, present invention fire prevention filler is special
Main component sodium aluminate in used additives passes through using reluctant residue phosphogypsum and high-sulfur bauxite as primary raw material system
It is standby, greatly reduce fire prevention filler special assistant at production cost.
2, according to reaction principle, after the clinker water mill dissolution after present invention roasting, the sodium aluminate material in solution is high,
Fire prevention filler special assistant performance obtained is good, local resistance to compression load, natural water absorption rate and anti-vibration punching after 48h immersions
Standard requirement can be reached by hitting aspect of performance.
3, the present invention mainly carries out calcination using two kinds of waste residues of ardealite and high-sulfur bauxite as primary raw material, compares
In the technique of traditional individually processing ardealite and high-sulfur bauxite, technique of the invention is simpler, and the cost of reactant is lower,
Greatly reduce the processing cost of ardealite and high-sulfur bauxite.
4, the present invention is roasted by regarding ardealite and high-sulfur bauxite as primary raw material after adding modifying agent and additive
Make the Na in the CaO and high-sulfur bauxite in ardealite2O·SiO2·Al2O3Recombination reflection is carried out, calcium silicates, sulfide are generated
And sodium aluminate, sodium aluminate by it is water-soluble go out, sulfide roasting after flue gas can be used for relieving haperacidity, calcium silicates can be used for producing silicon
Acid salt cement so that the active ingredient in ardealite and high-sulfur bauxite has obtained recycling extraction and application, substantially increases phosphorus
The added value of gypsum and high-sulfur bauxite.
The net reaction of the principle of the invention is：
CaSO4（Ardealite）+ Na2O·SiO2·Al2O3（High-sulfur bauxite）→ Na2O·Al2O3 + CaO·SiO2↓ +
[sulphur]
From the reaction equation it is found that with the SiO in the CaO and high-sulfur bauxite in ardealite2Generate calcium orthosilicate（ 2CaO·
SiO2↓）Afterwards, soluble fabulous sodium aluminate is obtained（Na2O·Al2O3）.[sulphur] in reaction equation, refers to adding modification by raw material
Agent technique, the metal sulfide of generation, main component FeS；After leaching the sodium aluminate in clinker, obtained sediment is floated
Choosing can be obtained FeS.
Further to prove that beneficial effects of the present invention, inventor have done following experiment：
Take 1-3 of the embodiment of the present invention 15 parts of fire prevention filler special assistants obtained respectively, be denoted as 1 group, 2 groups, 3 groups, respectively to
1 part of 150 parts of cement, 80 parts of water, 1 part of polypropylene fibre and water-reducing agent are added in 1-3 group auxiliary agents, after stirring evenly, respectively every
The stirring of 9 parts of foaming agents is added in group and is subsequently poured into in-mold molding, form removal after foam 8 hours under room temperature, and after maintenance 24 hours
Then it is physical to detect local resistance to compression load, natural water absorption rate and anti-vibrating and impact etc. after its 48h impregnates respectively for code heap 30 days
Can, it the results are shown in Table 1
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 method of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant, is by high-sulfur aluminium
Tu Kuang, ardealite, sodium sulphate and anthracite, which are mixed and ground, is made raw material, and in raw material, ardealite and high-sulfur bauxite are according to weight
Measure ratio 1：0.6 mixing, sodium sulphate adding proportion press contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation is 1:1 addition,
Anthracitic adding proportion is the 10% of raw material total weight；Raw material are sent into industrial rotary kiln at 1000 DEG C and are roasted 2 hours,
Clinker is made；It is 4 to consolidate volume ratio by liquid after clinker is ground:1 plus it is water-soluble go out, be then separated by solid-liquid separation, to isolated
Flotation agent is added in residue, floatingly selects sulfide（Predominantly iron sulfide）, sulfide is placed under 35% oxygen-enriched environment, 800
The flue gas generated after being roasted 5 hours at DEG C is catalyzed with vanadic anhydride, relieving haperacidity after then being absorbed with the concentrated sulfuric acid；It will be isolated
Solution heating evaporation obtains sodium aluminate crystallization, and aluminic acid sodium powder is ground into after sodium aluminate crystallization is dried, by 30 parts of aluminic acid sodium powder, tristearin
It is stirred evenly after 4 parts of 15 parts of sour calcium, 8 parts of sodium carboxymethylcellulose, 6 parts of polystyrene emulsion and calcium oxide mixing, obtains fire prevention and fill out
Fill agent special assistant.
Embodiment 2：A kind of method of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant, being will be high
Sulphur bauxite, ardealite, sodium carbonate and carbon, which are mixed and ground, is made raw material, and in raw material, ardealite and high-sulfur bauxite are according to weight
Measure ratio 1：0.9 mixing, sodium carbonate adding proportion press contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation is 1:1 addition,
The adding proportion of carbon is the 17% of raw material total weight；Raw material are sent into Industry Tunnel Kiln at 1200 DEG C and are roasted 1 hour, are made
Clinker；It is 5 to consolidate volume ratio by liquid after clinker is ground:1 plus it is water-soluble go out, be then separated by solid-liquid separation, to isolated residue
Middle addition flotation agent, floatingly selects sulfide（Predominantly iron sulfide）, sulfide is placed under 42% oxygen-enriched environment, at 900 DEG C
The flue gas that roasting generates after 3 hours is catalyzed with vanadic anhydride, relieving haperacidity after then being absorbed with the concentrated sulfuric acid；By isolated solution
Heating evaporation obtains sodium aluminate crystallization, and aluminic acid sodium powder is ground into after sodium aluminate crystallization is dried, by 35 parts of aluminic acid sodium powder, calcium stearate
5 parts of 18 parts, 10 parts of sodium carboxymethylcellulose, 7 parts of polystyrene emulsion and calcium oxide stir evenly after mixing, and obtain fire prevention filler
Special assistant.
Embodiment 3：A kind of method of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant, is by high-sulfur aluminium
Tu Kuang, ardealite, caustic soda and gangue, which are mixed and ground, is made raw material, and in raw material, ardealite and high-sulfur bauxite are according to weight
Than 1：1.4 mixing, caustic soda adding proportion press contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation is 1:1 addition, coal
The adding proportion of spoil is the 25% of raw material total weight；Raw material are sent into industrial shaft kiln at 1350 DEG C and are roasted 0.5 hour, are made
Obtain clinker；It is 6 to consolidate volume ratio by liquid after clinker is ground:1 plus it is water-soluble go out, be then separated by solid-liquid separation, to isolated residual
Flotation agent is added in slag, floatingly selects sulfide（Predominantly iron sulfide）, sulfide is placed under 50% oxygen-enriched environment, 1000
The flue gas generated after being roasted 1 hour at DEG C is catalyzed with vanadic anhydride, relieving haperacidity after then being absorbed with the concentrated sulfuric acid；It will be isolated
Solution heating evaporation obtains sodium aluminate crystallization, and aluminic acid sodium powder is ground into after sodium aluminate crystallization is dried, by 40 parts of aluminic acid sodium powder, tristearin
It is stirred evenly after 7 parts of 20 parts of sour calcium, 12 parts of sodium carboxymethylcellulose, 8 parts of polystyrene emulsion and calcium oxide mixing, obtains fire prevention and fill out
Fill agent special assistant.
Claims (10)
1. a kind of method of high-sulfur bauxite and ardealite relieving haperacidity coproduction fire prevention filler special assistant, it is characterised in that：Being will
High-sulfur bauxite, ardealite, additive and modifying agent, which are mixed and ground, is made raw material, in raw material, ardealite and high-sulfur bauxite
According to weight ratio 1：0.6-1.4 is mixed, and additive adding proportion presses contained Na in raw material2O and A12O3+Fe2O3The molecular proportion of summation
It is 1:1 addition, the adding proportion of modifying agent are the 10-25% of raw material total weight；Raw material are sent into kiln and are roasted, clinker is made；It will
Clinker grinding after plus it is water-soluble go out, be then separated by solid-liquid separation, flotation agent be added into isolated residue, floatingly select vulcanization
Object, the flue gas generated after sulfide is roasted are catalyzed with vanadic anhydride, relieving haperacidity after then being absorbed with the concentrated sulfuric acid；It will be isolated
Solution heating evaporation obtain sodium aluminate crystallization, aluminic acid sodium powder is ground into after sodium aluminate crystallization is dried, by aluminic acid sodium powder, stearic acid
It is stirred evenly after calcium, sodium carboxymethylcellulose, polystyrene emulsion and calcium oxide mixing, must prevent fires filler special assistant.
2. the method for high-sulfur bauxite according to claim 1 and ardealite relieving haperacidity coproduction fire prevention filler special assistant,
It is characterized in that：In the raw material, ardealite and high-sulfur bauxite are according to weight ratio 1：0.9 mixing.
3. the method for high-sulfur bauxite according to claim 1 and ardealite relieving haperacidity coproduction fire prevention filler special assistant,
It is characterized in that：In the raw material, the mixed proportion of modifying agent is the 17% of raw material total weight.
4. the method for high-sulfur bauxite according to claim 1 and ardealite relieving haperacidity coproduction fire prevention filler special assistant,
It is characterized in that：Sulfur content is higher than 0.7% in the high-sulfur bauxite.
5. the method for high-sulfur bauxite according to claim 1 and ardealite relieving haperacidity coproduction fire prevention filler special assistant,
It is characterized in that：The additive is sodium sulphate, sodium carbonate or caustic soda；The modifying agent is anthracite, carbon or gangue.
6. the method for high-sulfur bauxite according to claim 1 and ardealite relieving haperacidity coproduction fire prevention filler special assistant,
It is characterized in that：The kiln is industrial rotary kiln, Industry Tunnel Kiln or industrial shaft kiln；Calcination temperature is 1000-1350 DEG C, roasting
Time is 0.5-2 hours.
7. the method for high-sulfur bauxite according to claim 1 and ardealite relieving haperacidity coproduction fire prevention filler special assistant,
It is characterized in that：It is 4-6 that liquid when the Clinker digestion, which consolidates volume ratio,:1.
8. the method for high-sulfur bauxite according to claim 1 and ardealite relieving haperacidity coproduction fire prevention filler special assistant,
It is characterized in that：The sulfide is placed under the oxygen-enriched environment of 35-50%, is roasted 1-5 hours at 800-1000 DEG C.
9. the method for high-sulfur bauxite according to claim 1 and ardealite relieving haperacidity coproduction fire prevention filler special assistant,
It is characterized in that：The fire prevention filler special assistant by weight, by 30-40 parts of aluminic acid sodium powder, calcium stearate 15-20
Part, 8-12 parts of sodium carboxymethylcellulose, 6-8 parts of polystyrene emulsion and 4-7 parts of compositions of calcium oxide.
10. the method for high-sulfur bauxite according to claim 9 and ardealite relieving haperacidity coproduction fire prevention filler special assistant,
It is characterized in that：The fire prevention filler special assistant by weight, by 35 parts of aluminic acid sodium powder, 18 parts of calcium stearate, carboxylic first
6 parts of 10 parts of base sodium cellulosate, 7 parts of polystyrene emulsion and calcium oxide compositions.
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Citations (4)
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|---|---|---|---|---|
| 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 |
| 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 |
| CN105152571A (en) * | 2015-08-04 | 2015-12-16 | 重庆研悦建材有限公司 | Auxiliary agent for A-level fireproof filling for hollow floor and preparation 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 |
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2018
- 2018-07-03 CN CN201810711195.9A patent/CN108545989A/en active Pending
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| 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 |
| 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 |
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