CN102199712B - Lead residue reducing agent and preparation method thereof - Google Patents
Lead residue reducing agent and preparation method thereof Download PDFInfo
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- CN102199712B CN102199712B CN 201110096604 CN201110096604A CN102199712B CN 102199712 B CN102199712 B CN 102199712B CN 201110096604 CN201110096604 CN 201110096604 CN 201110096604 A CN201110096604 A CN 201110096604A CN 102199712 B CN102199712 B CN 102199712B
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Abstract
The invention discloses a lead residue reducing agent and a preparation method thereof and belongs to the technical field of chemical industry. The lead residue reducing agent comprises the following components in percentage by weight: 30 to 70 percent of active carbon, 5 to 20 percent of sodium sulfate, 5 to 15 percent of sodium hypophosphite, 1 to 15 percent of sodium hexafluoroaluminate, 3 to 18 percent of calcium oxide, 7 to 20 percent of precipitated silica, 1 to 5 percent of aluminium oxide, 1 to 5 percent of magnesium chloride, 0.1 to 2 percent of titanium trichloride and 0.5 to 5 percent of triethyl aluminum. The lead residue reducing agent can directly reduce oxide-state scum produced during alloy preparation of lead, calcium, tin and aluminum alloys and casting of grids of storage batteries into metal-state residue, so the residue amount of the lead, calcium, tin and aluminum alloys is reduced obviously. When the agent is used, the lead residue produced during the preparation of the lead, calcium, tin and aluminum alloys and the casting of grids can be directly reduced into molten metals of lead, calcium, tin and aluminum to flow back to an alloy pot, so the lead residue is reduced while the lead, calcium, tin and aluminum in the designated alloys are hardly lost; and thus, the effective ingredients of the grid alloys of the storage batteries are ensured.
Description
Technical field
The present invention relates to the technology of preparing that lead subtracts the slag agent, relate in particular to a kind of lead that in Pb-Ca-Sn-Al alloy smelting and battery grid casting usefulness, uses and subtract slag agent and preparation method thereof.
Background technology
In recent years, along with increasing rapidly of China's electric bicycle, automobile, telecommunications and outlet UPS battery, sealed lead acid storage battery has obtained develop rapidly, makes China become the plumbous production of the first in the world, lead acid cell production, lead and lead acid cell big export country and the plumbous big country that consumes.One of five heavy metal species of national 12 priority controls of plumbous conduct, caused the great attention of State Council, national environmental protection section has begun lead acid cell enterprise is carried out the blanket type inspection since in February, 2011, because lead acid cell production and plumbous regeneration have injured local resident's life and health, as causing blood lead event etc.According to statistics, China's lead loss amount: calendar year 2001 is 400,000 tons, and 2005 is 1,430,000 tons, and 2006 is 1,780,000 tons, and 2010 is 2,500,000 tons.Wherein 85% lead loss is used for the manufacturing of lead acid cell, and present annual lead acid cell need to be about 2,700,000 tons with lead, means that the battery grid lead alloy is 1,350,000 tons.In the process for preparation of grid Pb-Ca-Sn-Al alloy (Pb-Ca-Sn-Al), mother alloy and finished product alloy are because the melting preparation causes the oxidation lead skim to account for the 10%(average national level of alloy gross weight), Pb-Ca-Sn-Al alloy (Pb-Ca-Sn-Al) in casting grid process because smelting furnace surface lead skim pulls out the about 5%(average national level of loss), so Pb-Ca-Sn-Al alloy (Pb-Ca-SnAl) from gold conjugate to the casting battery grid out, 150 kilograms of lead of the about loss of lead alloy per ton namely become lead skim.Because the lead skim of lead antimony alloy is few than Pb-Ca-Sn-Al alloy, actual lead loss will be less than about this number.But battery of electric bicycle because contain cadmium, easily causes cadmium pollution and cadmium poisoning with lead antimony alloy, and Pb-Ca-Sn-Al alloy (Pb-Ca-SnAl) replaces Pb-Sb-Cd alloy to become inexorable trend.We approximately produce the 120 kg lead skim with plumbous calcium tin aluminium sheet grid alloy per ton and calculate, and China's annual scrap lead slag (belonging to hazardous solid waste) that produces of lead acid cell industry is approximately 10.2 ten thousand tons.These 10.2 ten thousand tons of scrap lead slags are by the Baoding in Present Domestic lead-acid accumulator regeneration distribution centre, the circle, Anhui is first, At Meishan, changxing, zhejiang Province, Chongqing, southwest, the purchase of the little factory of some secondary leads in the area such as North Guangdong, Guangdong, the traditional little reverberatory furnace of main employing on the technique, the earth kiln such as blast furnace and cupola furnace soil stove smelting technology, not making any pole plate except sulphuring treatment carries out mixing, the comprehensive reutilization rate is extremely low, remaining lead enters in the air with the sulfurous gas that gaseous state or dust form are produced in the smelting process together, with approximately 100,000 tons of secondary leads calculating of output, year is approximately discharged 12250 tons of sulfurous gas, and produce leaded in a large number, arsenic, cadmium, the waste residue of the heavy metals such as antimony, cause the serious waste of resource and the huge pollution of ecotope, even cause local resident's lead poisoning event to happen occasionally.
Most of middle-size and small-size plumbous smelteries adopt traditional technology in order to save smelting cost more, and coal ash is pressed into the lead pan slag making removal of impurity, outwards discharge a large amount of waste gas and the dust such as sulfurous gas.The plumbous smelting adopted in the coal ash slagging process, and smoke discharge amount is very large, and the waste gas such as sulfurous gas are 600～800mg/mm
3
Therefore, how to remove or reduce the lead skim amount, thereby reduce significantly the sulfur dioxide pollution that lead that lead skim regeneration causes produces in the smelting process with gaseous state or dust form, and the energy dissipation of minimizing lead skim regeneration, and avoid present plumbous smeltery to adopt coal ash as slag former, the toxic and harmful exhaust emission air such as generation sulfurous gas etc. are urgent problems.
Summary of the invention
Embodiment of the present invention provides a kind of lead to subtract slag agent and preparation method thereof, be used in the lead-calcium alloy production, can remove or reduce the lead skim amount, and can significantly reduce the pollution in the lead skim regeneration, reduce lead acid cell and Pb-Ca-Sn-Al alloy production cost, and can reduce the generation of Lead contamination accident.
The objective of the invention is to be achieved through the following technical solutions:
Embodiment of the present invention provides a kind of lead to subtract the slag agent, and this lead subtracts the slag agent and comprises by weight following each component:
Embodiment of the present invention also provides a kind of lead to subtract the preparation method of slag agent, and the method comprises:
Get plumbous each raw material that subtracts the slag agent of preparation by following prescription, wherein each raw material consumption by weight percentage;
Gac 30～70%, sodium sulfate 5～20%, sodium hypophosphite 5～15%, hexafluoro sodium aluminate 1～15%, calcium oxide 3～18%, precipitated silica 7～20%, aluminium sesquioxide 1～5%, magnesium chloride 1～5%, titanous chloride 0.1～2%, triethyl aluminum 0.5～5%;
The coinitiator of preparation aluminum compound: the coinitiator of the titanous chloride in the above-mentioned prescription being made aluminum compound as main initiator and triethyl aluminum as auxiliary initiator after reaction;
The carrier of preparation coinitiator: with the precipitated silica in the above-mentioned prescription, aluminium sesquioxide and magnesium chloride, adopt the polishing of physical dispersion to make the initiator carrier, and the coinitiator Uniform Dispersion of the above-mentioned aluminum compound of making is loaded to this initiator carrier surface of being made by precipitated silica, aluminium sesquioxide and magnesium chloride;
Taking off crystal water processes: add sodium sulfate, sodium hypophosphite, hexafluoro sodium aluminate and calcium oxide in the coinitiator of the aluminum compound on initiator carrier obtained above and this carrier, put into afterwards Stainless Steel Kettle, heating stir-fries, dries and take off crystal water, treat that cracker and flue gas disappear, take off crystal water complete, obtain taking off the crystal water mixture;
Be mixed and made into lead and subtract the slag agent: crystal water mixture and the gac of taking off obtained above put into the batch mixing machine and mixed, and mixing time is 25 minutes, namely makes lead after the mixing and subtracts the slag agent.
In sum, lead of the present invention subtracts titanous chloride in the slag agent forms aluminum compound as auxiliary initiator as main initiator and triethyl aluminum coinitiator, it is carried on the initiator carrier surface of being made by precipitated silica, aluminium sesquioxide and magnesium chloride, joining lead subtracts and only needs stirring reaction just can remove the gred fast after 0.5～1 minute after the slag agent to drag for slag, improved slagging-off efficient; And lead subtracts precipitated silica (SiO in the slag agent
2) and aluminium sesquioxide (Al
2O
3) consisting of aluminum silicon powder, sial has lower fusing point makes aluminium be easier to the additional Pb-Ca-Sn-Al alloy that enters; While hexafluoro sodium aluminate (Na
3AlF
6) flux to the oxide compound of lead, calcium, tin, aluminium is existing, can replenish again the aluminium of Pb-Ca-Sn-Al alloy; Calcium oxide (CaO) can replenish the calcium of Pb-Ca-Sn-Al alloy; Sodium sulfate (Na
2SO
4) can guarantee intensity and the hardness of Pb-Ca-Sn-Al alloy because of replenishing of sodium.And this lead subtracts the sodium hypophosphite (NaH in the slag agent
2PO
2H
2O) and gac (C) under the coinitiator effect of aluminum compound, can make the oxide compound of lead, calcium, tin, aluminium and salt thereof be reduced to the metal situation, make Pb-Ca-Sn-Al alloy in process for preparation and in the lead skim that produces in the casting grid process (actual oxide compound and salt thereof for lead, calcium, tin, aluminium) the molten metal backflow alloy pot of direct-reduction for lead, calcium, tin, aluminium, significantly reduce the lead skim amount.
Embodiment
Below in conjunction with specific embodiment technical scheme of the present invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills belong to protection scope of the present invention not making the every other embodiment that obtains under the creative work prerequisite.
For ease of the understanding to technical solution of the present invention, below in conjunction with specific embodiment implementation procedure of the present invention is described further.
Embodiment one
The present embodiment provides a kind of lead to subtract the slag agent, be used for the production that Pb-Ca-Sn-Al alloy is smelted, battery grid is cast and lead skim is regenerated, reduce the generation of lead skim and the exhaust emission in the lead skim regeneration, this lead subtracts the slag agent and comprises following each raw material (each raw material consumption is by weight percentage):
With above-mentioned multiple compounds through the way of chemistry and physics manufacture can the few lead skim of alkali complex chemical compound, concrete preparation method is as follows:
Get plumbous each raw material that subtracts the slag agent of preparation by above-mentioned prescription, preparation process is as follows:
The coinitiator of preparation aluminum compound: the coinitiator of the titanous chloride in the above-mentioned prescription being made aluminum compound as main initiator and triethyl aluminum as auxiliary initiator after reaction;
The carrier of preparation coinitiator: with the precipitated silica in the above-mentioned prescription, aluminium sesquioxide and magnesium chloride, adopt the polishing of physical dispersion to make the initiator carrier, and the coinitiator Uniform Dispersion of the above-mentioned aluminum compound of making is loaded to this initiator carrier surface of being made by precipitated silica, aluminium sesquioxide and magnesium chloride;
Taking off crystal water processes: add sodium sulfate, sodium hypophosphite, hexafluoro sodium aluminate and calcium oxide in the coinitiator of the aluminum compound on initiator carrier obtained above and this carrier, put into afterwards Stainless Steel Kettle, heating stir-fries, dries and take off crystal water, treat that cracker and flue gas disappear, take off crystal water complete, obtain taking off the crystal water mixture;
Be mixed and made into lead and subtract the slag agent: crystal water mixture and the gac of taking off obtained above put into the batch mixing machine and mixed, and mixing time is 25 minutes, namely makes lead after the mixing and subtracts the slag agent.
Above-mentioned lead subtracts in the slag agent, titanous chloride (TiCl
3) as main initiator, triethyl aluminum (Al (C
2H
5)
3) after reaction, make the coinitiator of aluminum compound as auxiliary initiator, the initiator of this aluminum compound can accelerate the reduction of oxide compound and the salt thereof of lead, calcium, tin, aluminium under certain condition.For the coinitiator that makes this aluminum compound can remove the gred fast, raise the efficiency, subtract in the slag agent by precipitated silica (SiO at this lead
2), aluminium sesquioxide (Al
2O
3) and magnesium chloride (MgCl
2) adopt the polishing of physical dispersion to make the initiator carrier, use this carrier after, in use add after lead subtracts the slag agent, have as long as stirring reaction just can remove the gred after 0.5～1 minute and drag for slag, the effect of Effective Raise production efficiency.
Above-mentioned lead subtracts in the slag agent, a certain proportion of precipitated silica (SiO
2) and aluminium sesquioxide (Al
2O
3) consisting of aluminum silicon powder, sial has lower fusing point makes aluminium be easier to the additional Pb-Ca-Sn-Al alloy that enters; While hexafluoro sodium aluminate (Na
3AlF
6) flux to the oxide compound of lead, calcium, tin, aluminium is existing, can replenish again the aluminium of Pb-Ca-Sn-Al alloy; Calcium oxide (CaO) can replenish the calcium of Pb-Ca-Sn-Al alloy; Sodium sulfate (Na
2SO
4) can guarantee intensity and the hardness of Pb-Ca-Sn-Al alloy because of replenishing of sodium.Therefore subtract the slag agent at lead and comprise above-mentioned each raw material of specified proportion, in the use, add after lead subtracts the slag agent, having the aluminium that guaranteed Pb-Ca-Sn-Al alloy can scaling loss as the protective material that prevents alloy oxidation, guarantees simultaneously the intensity of alloy and the effect of hardness.
Above-mentioned lead subtracts in the slag agent, sodium hypophosphite (NaH
2PO
2H
2O) and gac (C) under the coinitiator effect of aluminum compound, can make the oxide compound of lead, calcium, tin, aluminium and salt thereof be reduced to the metal situation, make Pb-Ca-Sn-Al alloy in process for preparation and in the lead skim that produces in the casting grid process (actual oxide compound and salt thereof for lead, calcium, tin, aluminium) the molten metal backflow alloy pot of direct-reduction for lead, calcium, tin, aluminium, significantly reduce the lead skim amount.In use, add after lead subtracts the slag agent, have the lead, calcium, tin, the aluminium that make alloy and there is no loss, strict guarantee the effective constituent of accumulator plate grid alloy, and make hazardous solid waste lead skim amount reduce by 2/3 effect.Not only reduce significantly plumbous waste, and the lead powder dirt that has reduced the hazardous solid waste lead skim and cause because regeneration is smelted and the discharging of sulfurous gas, the energy dissipation that has reduced simultaneously lead skim and cause because regeneration is smelted.
And the lead in the embodiment of the invention subtracts some mineral compound of adding (calcium oxide (CaO), silicon-dioxide (SiO in the slag agent
2), aluminium sesquioxide (Al
2O
3), hexafluoro sodium aluminate (Na
3AlF
6) can prevent that calcium, aluminium etc. in this alloy from being the oxidization burning loss than the active metal melt, reduce being mingled with of alloy, the defectives such as pore, loose, oxide compound, can carry heavy alloyed physical and chemical performance, mechanical property and corrosion resistance nature.
Embodiment two
The present embodiment provides a kind of lead to subtract the slag agent, is used in Pb-Ca-Sn-Al alloy smelting and the battery grid Foundry Production to reduce the generation of lead skim, and is used in the exhaust emission that produces in the minimizing production process in the lead skim regeneration, and this lead subtracts the slag agent and specifically comprises:
The preparation process step is as follows:
The coinitiator of preparation aluminum compound: the coinitiator of the titanous chloride in the above-mentioned prescription being made aluminum compound as main initiator and triethyl aluminum as auxiliary initiator after reaction;
The carrier of preparation coinitiator: with the precipitated silica in the above-mentioned prescription, aluminium sesquioxide and magnesium chloride, adopt the polishing of physical dispersion to make the initiator carrier, and the coinitiator Uniform Dispersion of the above-mentioned aluminum compound of making is loaded to this initiator carrier surface of being made by precipitated silica, aluminium sesquioxide and magnesium chloride;
Taking off crystal water processes: add sodium sulfate, sodium hypophosphite, hexafluoro sodium aluminate and calcium oxide in the coinitiator of the aluminum compound on initiator carrier obtained above and this carrier, put into afterwards Stainless Steel Kettle, heating stir-fries, dries and take off crystal water, treat that cracker and flue gas disappear, take off crystal water complete, obtain taking off the crystal water mixture;
Be mixed and made into lead and subtract the slag agent: crystal water mixture and the gac of taking off obtained above put into the batch mixing machine and mixed, and mixing time is 25 minutes, namely makes lead after the mixing and subtracts the slag agent.
Embodiment three
The present embodiment provides a kind of lead to subtract the slag agent, be used in the generation that reduces lead skim in Pb-Ca-Sn-Al alloy smelting and the battery grid Foundry Production, and be used in and reduce the exhaust emission that produces in the production process in the lead skim regeneration, this lead subtracts the slag agent and specifically comprises by weight following each component:
This lead subtracts the preparation process of slag agent with embodiment three, no longer repeats at this.
Embodiment four
The present embodiment provides a kind of lead to subtract the slag agent, be used in the generation that reduces lead skim in Pb-Ca-Sn-Al alloy smelting and the battery grid Foundry Production, and be used in and reduce the exhaust emission that produces in the production process in the lead skim regeneration, this lead subtracts the slag agent and specifically comprises by weight following each component:
This lead subtracts the preparation process of slag agent with embodiment three, no longer repeats at this.
The above-mentioned lead that makes subtracts the slag agent when reality is used, with lead subtract the slag agent be used in Pb-Ca-Sn-Al alloy smelt in and in the battery grid casting to reduce lead skim, be specially:
A) lead for preparing in the embodiment of the invention is subtracted the slag agent and before the preparation lead alloy drags for slag, uses, specifically undertaken by following flow process:
⑴ usually, the lead that lead alloy per ton should add about 1kg subtracts the slag agent, this lead is subtracted on the thick scum silica frost that the slag agent is sprinkling upon the molten lead liquid surface equably, then begin to stir lead and subtract slag agent, thick scum silica frost and plumbous liquid, making lead subtract the plumbous liquid in slag agent and top layer fully contacts and reacts, by the time plumbous liquid surface scum loose, be powdery after, begin to pull out scum silica frost;
(2) if when still there is thick thing in plumbous liquid surface, can suitably increase as stated above the amount that lead subtracts the slag agent, fully stir again, carry out re-treatment, until whole thick scum silica frost becomes loose powdery scum silica frost;
B) utilize lead in the embodiment of the invention to subtract and use the slag agent is dragged for slag when cast panel grid and the plumbous part of casting before, to reduce lead skim, specifically carry out in the steps below:
⑴ usually, once dragging for slag according to per tour (8 hours) processes, before dragging for slag, 0.5～1.5kg lead is subtracted on the alloy surface lead skim of slag agent adding grid casting lead smelting furnace, equably lead is subtracted on the thick scum silica frost that the slag agent is sprinkling upon the molten lead liquid surface, then fully stir and subtract slag agent, thick scum silica frost and plumbous liquid, when plumbous liquid surface presents loose, powdery scum silica frost by the time, begin to pull out scum silica frost;
(2) if when still there is thick thing in plumbous liquid surface, can suitably increase as stated above the amount that lead subtracts the slag agent, fully stir again, carry out re-treatment, until whole thick scum silica frost becomes loose powdery scum silica frost.
In sum, the lead for preparing in the embodiment of the invention subtracts that the slag agent can prevent that the Pb-Ca-Sn-Al alloy element from pulling out with slag and loss makes the grid alloy composition consistent with the lead pig composition; Improve grid castability and quality.This lead subtracts the slag agent and has following advantage: 1. lead subtracts the compound sufficient reacting in the slag agent, is swift in response, and the residual harmful composition is not in fusion of lead or lead alloy; 2. flue dust is few, has no irritating odor, and does not produce toxic and harmful and corrosive gases; 3. reduce the loss that valency alloying element (such as lead, tin, aluminium, calcium etc.) are effectively arranged, reduce lead loss; 4. the oxide compound of lead, tin, aluminium, calcium directly is reduced to metallic state in the slag, significantly improves lead and alloy utilization ratio, and the lead skim amount can reduce 2/3; 5. subtract the slag agent and when having guaranteed the alloying elements such as tin, aluminium, calcium, also increased micro-sodium, the castability of grid and mechanical property are improved.This alkaline residue agent is used in that lead skim regeneration is corresponding in producing can be reduced the secondary lead smelting discharging and cause air-polluting sulfurous gas, smelts the consumption of mode fuel saving coal than tradition.
Use the lead for preparing in the embodiment of the invention to subtract slag agent and the effect comparison table that need not plumbous subtract the slag agent
The lead that utilizes the embodiment of the invention to provide subtracts the slag agent when preparing plumbous calcium mother alloy and finished product Sn-Al alloy, its lead skim is reduced to the 3.34%(mean level (ML) by original 10%), lead-calcium alloy lead skim in casting grid process is reduced to the 1.72%(mean level (ML) by original 5%).Calculate with plumbous calcium tin aluminium sheet grid alloy per ton: from alloyage to the casting grid out, reduce altogether 90 kilograms of lead skims (hazardous solid waste), can also corresponding minimizing smelt 11 kilograms of discharging sulfurous gas, 36 kilograms in the saving coal that the regeneration lead skim causes because of tradition.While lead subtracts the slag agent and can replace coal ash as the slag former of lead smelting technology, thoroughly eliminates sulfur dioxide emissions (600～800mg/mm that coal ash produces in slagging process
3), this lead subtracts hazardous solid waste (lead skim) discharging and the sulfur dioxide emissions that the slag agent can reduce lead acid cell industry and plumbous metallurgy industry significantly, and save coal (or oily, electricity) equal energy source, and for reducing the manufacturing cost of lead acid cell enterprise and plumbous smelter.
In sum, the lead of the embodiment of the invention subtracts the slag agent and can effectively solve in the lead alloy production process, produces lead skim, causes the problems such as the wasting of resources and environmental pollution.This lead subtracts hazardous solid waste (lead skim) discharging and the sulfur dioxide emissions that the slag agent can reduce lead acid cell industry and plumbous metallurgy industry significantly, and save coal (or oily, electricity) equal energy source, and for reducing the manufacturing cost of lead acid cell enterprise and plumbous smelter.
The above; only be the better embodiment of the present invention; but protection scope of the present invention is not limited to this; because of the relation of the succession between each embodiment the present invention is not caused any restriction yet; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (2)
1. a lead subtracts the slag agent, it is characterized in that, this lead subtracts the slag agent and comprises by weight percentage following each component:
Prepare lead by following steps and subtract the slag agent:
The coinitiator of preparation aluminum compound: the coinitiator of the titanous chloride in the above-mentioned prescription being made aluminum compound as main initiator and triethyl aluminum as auxiliary initiator after reaction;
The carrier of preparation coinitiator: with the precipitated silica in the above-mentioned prescription, aluminium sesquioxide and magnesium chloride, adopt the polishing of physical dispersion to make the initiator carrier, and the coinitiator Uniform Dispersion of the above-mentioned aluminum compound of making is loaded to this initiator carrier surface of being made by precipitated silica, aluminium sesquioxide and magnesium chloride;
Taking off crystal water processes: add sodium sulfate, sodium hypophosphite, hexafluoro sodium aluminate and calcium oxide in the coinitiator of the aluminum compound on initiator carrier obtained above and this carrier, put into afterwards Stainless Steel Kettle, heating stir-fries, dries and take off crystal water, treat that cracker and flue gas disappear, take off crystal water complete, obtain taking off the crystal water mixture;
Be mixed and made into lead and subtract the slag agent: crystal water mixture and the gac of taking off obtained above put into the batch mixing machine and mixed, and mixing time is 25 minutes, namely makes lead after the mixing and subtracts the slag agent.
2. a lead subtracts the preparation method of slag agent, it is characterized in that, the method comprises:
Get plumbous each raw material that subtracts the slag agent of preparation by following prescription, wherein each raw material consumption by weight percentage;
Gac 30～70%, sodium sulfate 5～20%, sodium hypophosphite 5～15%, hexafluoro sodium aluminate 1～15%, calcium oxide 3～18%, precipitated silica 7～20%, aluminium sesquioxide 1～5%, magnesium chloride 1～5%, titanous chloride 0.1～2%, triethyl aluminum 0.5～5%;
The coinitiator of preparation aluminum compound: the coinitiator of the titanous chloride in the above-mentioned prescription being made aluminum compound as main initiator and triethyl aluminum as auxiliary initiator after reaction;
The carrier of preparation coinitiator: with the precipitated silica in the above-mentioned prescription, aluminium sesquioxide and magnesium chloride, adopt the polishing of physical dispersion to make the initiator carrier, and the coinitiator Uniform Dispersion of the above-mentioned aluminum compound of making is loaded to this initiator carrier surface of being made by precipitated silica, aluminium sesquioxide and magnesium chloride;
Taking off crystal water processes: add sodium sulfate, sodium hypophosphite, hexafluoro sodium aluminate and calcium oxide in the coinitiator of the aluminum compound on initiator carrier obtained above and this carrier, put into afterwards Stainless Steel Kettle, heating stir-fries, dries and take off crystal water, treat that cracker and flue gas disappear, take off crystal water complete, obtain taking off the crystal water mixture;
Be mixed and made into lead and subtract the slag agent: crystal water mixture and the gac of taking off obtained above put into the batch mixing machine and mixed, and the time of mixing is 25 minutes, namely makes lead after mixing and subtracts the slag agent.
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|---|---|---|---|
| CN 201110096604 CN102199712B (en) | 2011-04-18 | 2011-04-18 | Lead residue reducing agent and preparation method thereof |
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|---|---|---|---|
| CN 201110096604 CN102199712B (en) | 2011-04-18 | 2011-04-18 | Lead residue reducing agent and preparation method thereof |
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| CN102199712B true CN102199712B (en) | 2013-03-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618859A (en) * | 2012-03-15 | 2012-08-01 | 超威电源有限公司 | Impregnation liquid special for lead-calcium alloyed grid |
| CN104388727A (en) * | 2013-11-16 | 2015-03-04 | 广西柳州中嘉知识产权服务有限公司 | Lead alloy slag-reducing agent |
| CN106282659A (en) * | 2016-08-21 | 2017-01-04 | 株洲冶炼集团股份有限公司 | A kind of lead smelting removes antimony agent and except antimony technique with compound |
| CN106222443A (en) * | 2016-08-24 | 2016-12-14 | 安徽中能电源有限公司 | A kind of method reducing lead stove interior generation lead skim |
| CN111876610B (en) * | 2020-08-05 | 2022-07-19 | 浙江巨江电源制造有限公司 | Lead slag reducing agent and preparation method thereof |
| CN118028615A (en) * | 2024-04-12 | 2024-05-14 | 栾川县亨凯冶金材料销售有限公司 | Bismuth removing agent for lead smelting, preparation method of bismuth removing agent and bismuth removing method |
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| CN1073486A (en) * | 1991-12-16 | 1993-06-23 | 东北工学院 | The aluminum or aluminum alloy slag remover for refining |
| CN1831161A (en) * | 2005-03-08 | 2006-09-13 | 东北轻合金有限责任公司 | Deslagging agent for high performance deforming aluminium and aluminium alloy, prepn. method and application thereof |
| CN101716673A (en) * | 2009-12-28 | 2010-06-02 | 周健 | Low-temperature slag removal agent |
-
2011
- 2011-04-18 CN CN 201110096604 patent/CN102199712B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073486A (en) * | 1991-12-16 | 1993-06-23 | 东北工学院 | The aluminum or aluminum alloy slag remover for refining |
| CN1831161A (en) * | 2005-03-08 | 2006-09-13 | 东北轻合金有限责任公司 | Deslagging agent for high performance deforming aluminium and aluminium alloy, prepn. method and application thereof |
| CN101716673A (en) * | 2009-12-28 | 2010-06-02 | 周健 | Low-temperature slag removal agent |
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