CN104591280B - A kind of natural gas is smelted preparation technology and the device of antimony oxide - Google Patents
A kind of natural gas is smelted preparation technology and the device of antimony oxide Download PDFInfo
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- CN104591280B CN104591280B CN201510019992.7A CN201510019992A CN104591280B CN 104591280 B CN104591280 B CN 104591280B CN 201510019992 A CN201510019992 A CN 201510019992A CN 104591280 B CN104591280 B CN 104591280B
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- antimony
- flue gas
- temperature
- antimony oxide
- stibium trioxide
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G30/00—Compounds of antimony
- C01G30/004—Oxides; Hydroxides; Oxyacids
- C01G30/005—Oxides
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
Abstract
The invention belongs to chemical industry field of smelting, be specifically related to a kind of preparation technology and device of natural gas smelting antimony oxide. Described preparation technology is: (1) adopts natural gas combustion engine that stibium trioxide stove furnace temperature is risen to after 1000 DEG C, in stove, drops into metallic antimony, makes it fusing; (2) make antimony voloxidation to blasting oxygen in antimony liquid, burner hearth central authorities temperature is controlled at 900-1100 DEG C, (3) in stibium trioxide stove high-temperature flue gas top reaction compartment exit, by flue gas quenching equipment, controlling high temperature antimony oxide amount of flue gas emission is 1 with the ratio of quench air amount: 1-30, make the quenching of high temperature antimony oxide flue gas be cooled to 60-300 DEG C, products obtained therefrom bag collection systematic collection. The stibium trioxide granularity of producing under preparation technology of the present invention is between 0.5 μ m-0.8 μ m, and whiteness is more than 95, and cubic content is greater than 97%, and insoluble matter is low, good dispersion.
Description
Technical field
The invention belongs to chemical industry field of smelting, be specifically related to a kind of preparation technology and device of natural gas smelting antimony oxide.
Background technology
Antimony oxide (stibium trioxide) is a kind of important industrial chemicals, and it has been widely used on the modern industries such as building, plastics, rubber, paint, chemical fibre as the synergist of organohalogen compounds fire retardant. But, along with scientific and technical progress, the development of national economy, the industrial quality to antimony oxide has proposed more requirements, especially the antimony oxide that monocrystalline type, particle diameter are evenly distributed, owing to thering is the characteristics such as the even and photostability of good chemism, good dispersion, tinting strength, tinting power is strong, favored by high-end user, its price is also high more than 10% than the antimony oxide of run-of-the-mill.
The method of producing at present cubic crystal form antimony trioxide is mainly used two kinds of wet method and pyrogenic processes. Wet method is mainly antimony oxide Hydrolyze method, if Chinese Patent Application No. is the method as described in 92114236.6. Pyrogenic process mainly contains the low-temperature oxidation method of plasma method and metallic antimony, and if publication number is the particle diantimony trioxide product that CN1038444A adopts plasma method to produce, cubic content can reach more than 99%. The preparation method of the cubic crystal form antimony trioxide as described in JP79108798 and JP80114418 patent is the low-temperature oxidation method of metallic antimony. The method is that metallic antimony and lead are mixed by a certain percentage, and in electric furnace, oxidized metal antimony at a lower temperature after fusing, obtains cubic crystal form antimony trioxide. These methods all can obtain cubic crystal form antimony trioxide above, but wet method has contaminated wastewater environment, and equipment corrosion is serious, and pyrogenic process has energy consumption high, yields poorly, and working condition is difficult to the defects such as control. Chinese patent 85102489.0 " a kind of stibium trioxide stove of reverberatory furnace structure " is taking metallic antimony as raw material, blasting first and second air makes the antimony liquid autothermal oxidation of melting become antimony oxide steam, through a large amount of cooling-air quenchings, then trap the production method of antimony oxide through bag collection system, there is technique simple, processing ease, energy consumption is low, the advantages such as output is large, constant product quality. But its product is not single cubic, and the content of its cubic only has 60～80%, is difficult to meet user's requirement.
In addition, the mode of heating of stibium trioxide stove generally adopts coal-fired heating at present, and in fire coal, contains 3% sulphur, produces a large amount of SO2 gas after burning, in production overall process, cannot all absorb, and contaminated air, causes environmental hazard and produce a large amount of waste residues. Therefore this area in the urgent need to a kind of without waste gas, without the antimony oxide preparation technology of waste residue, thereby be conducive to improve because antimony oxide is produced the environmental protection pressure bringing.
Summary of the invention
An object of the present invention is to provide a kind of antimony oxide preparation technology who produces without waste gas, without waste residue, concrete steps are as follows:
(1) adopt natural gas combustion engine that stibium trioxide stove furnace temperature is risen to after 1000 DEG C, in stove, drop into metallic antimony, make it fusing;
(2) make antimony voloxidation to blasting oxygen in antimony liquid, burner hearth central authorities temperature is controlled at 900-1100 DEG C;
(3) in stibium trioxide stove high-temperature flue gas top reaction compartment exit, by flue gas quenching equipment, controlling high temperature antimony oxide amount of flue gas emission is 1 with the ratio of quench air amount: 1-30, make the quenching of high temperature antimony oxide flue gas be cooled to 60-300 DEG C, products obtained therefrom bag collection systematic collection.
In the present invention further in embodiment, described step 1 adopt natural gas combustion engine by stibium trioxide stove furnace temperature rise to 1000 DEG C operation for adopt natural gas combustion engine by stibium trioxide furnace temperature about 500 DEG C operation 8 hours, be more directly warmed up to about 1000 DEG C beginning chargings.
In step 2 of the present invention, burner hearth central authorities temperature is preferably controlled at 1025 DEG C, and temperature control can, by increasing or reduce inlet amount, increase or reducing interval time, improve or reduce the means such as the blow rate required and realize. For example, in the time of burner hearth central authorities temperature drift, can be by increasing inlet amount and reducing interval time, reduce the blow rate required and reduce burner hearth central authorities temperature. In addition,, in step 2 of the present invention, in antimony liquid, blasting amount of oxygen is 35～40Nm3/h。
In step 3 of the present invention, high temperature antimony oxide amount of flue gas emission is 1: 7 with the ratio of quench air amount, and the quenching of high temperature antimony oxide flue gas is cooled to 220 DEG C.
Another object of the present invention is to provide the device that a kind of described antimony oxide preparation technology uses, and it is made up of natural gas combustion engine, stibium trioxide stove, air blast, flue gas quenching equipment and pulse bag dust-precipitator.
The present invention adopts substitute gas fire coal as fuel, the waste residue and the waste gas that cause due to fire coal are avoided, thereby reach the target of stibium trioxide production zero-emission, and the present invention surprisingly finds to adopt not only energy-saving and emission-reduction after substitute gas fire coal, and greatly save production cost, can bring huge income for manufacturing enterprise. In addition, the present invention by the reaction furnace temperature in stibium trioxide production technology, blast amount of oxygen, cooling air volume and the isoparametric accurate control of high temperature antimony oxide flue gas quench temperature, thereby the stibium trioxide granularity of producing under preparation technology of the present invention is between 0.5 μ m-0.8 μ m, whiteness is more than 95, cubic content is greater than 97%, and insoluble matter is low, good dispersion.
Detailed description of the invention
To further illustrate the present invention below. It is pointed out that following explanation is only illustrating of the technical scheme claimed to the present invention, the not any restriction to these technical schemes. The content that protection scope of the present invention is recorded with appended claims is as the criterion.
Embodiment 1
(1) adopt natural gas combustion engine that stibium trioxide furnace temperature is moved to 8 hours at about 500 DEG C, be more directly warmed up to about 1000 DEG C beginning chargings, in stove, drop into metallic antimony, make it fusing;
(2) adopt air blast to make antimony voloxidation to blasting oxygen in antimony liquid, amount of oxygen is 35～40Nm3/ h, burner hearth central authorities temperature is controlled at 1025 DEG C;
(3) in stibium trioxide stove high-temperature flue gas top reaction compartment exit, by flue gas quenching equipment, controlling high temperature antimony oxide amount of flue gas emission is 1: 7 with the ratio of quench air amount, make the quenching of high temperature antimony oxide flue gas be cooled to 220 DEG C, products obtained therefrom is collected by pulse bag dust collecting system.
Metallic antimony chemical composition is Sb99.50%, As0.15%, Fe0.05%, Cu0.085%, S0.08%.
Embodiment 2-9
Except following table parameter, additive method is all with embodiment 1, and design parameter is as follows:
The product specification of antimony oxide prepared by embodiment 1-9 is as follows:
Adopt after production technology of the present invention enterprise's cost-saving 1,500,000 yuan/year of more former coal-fired technique in actual production, 100 tons/year of exhaust gas emission reductions, 95 tons/year, waste residue.
Content of the present invention only for example understands some claimed specific embodiments; the technical characterictic of recording in one of them or more technical scheme can be with one or more technical schemes be combined arbitrarily; these technical schemes that obtain through combination are also in the application's protection domain, just as these technical schemes that obtain through combination have specifically been recorded in the disclosure of invention.
Claims (1)
1. an antimony oxide preparation technology who produces without waste gas with without waste residue, concrete steps are as follows:
(1) adopt natural gas combustion engine that stibium trioxide stove furnace temperature is risen to after 1000 DEG C, in stove, drop into metallic antimony, make it fusing;
(2) make antimony voloxidation to blasting oxygen in antimony liquid, burner hearth central authorities temperature is controlled at 1025 DEG C;
(3) in stibium trioxide stove high-temperature flue gas top reaction compartment exit, by flue gas quenching equipment, controlling high temperature antimony oxide amount of flue gas emission is 1: 7 with the ratio of quench air amount, makes the quenching of high temperature antimony oxide flue gas be cooled to 220 DEG C, products obtained therefrom bag collection systematic collection;
Wherein, described step 1 adopt natural gas combustion engine by stibium trioxide stove furnace temperature rise to 1000 DEG C operation for adopt natural gas combustion engine by stibium trioxide furnace temperature about 500 DEG C operation 8 hours, be more directly warmed up to about 1000 DEG C beginning chargings;
In described step 2, in antimony liquid, blasting amount of oxygen is 35～40Nm3/h。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510019992.7A CN104591280B (en) | 2015-01-15 | 2015-01-15 | A kind of natural gas is smelted preparation technology and the device of antimony oxide |
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| CN201510019992.7A CN104591280B (en) | 2015-01-15 | 2015-01-15 | A kind of natural gas is smelted preparation technology and the device of antimony oxide |
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| CN104591280A CN104591280A (en) | 2015-05-06 |
| CN104591280B true CN104591280B (en) | 2016-05-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106809876B (en) * | 2017-03-24 | 2018-10-30 | 南昌专腾科技有限公司 | A kind of smelting process and device of cubic stibium trioxide |
| CN112919538B (en) * | 2021-02-26 | 2023-04-11 | 广西华远金属化工有限公司 | Oxygen-enriched production process of catalyst-grade antimony trioxide |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1683250A (en) * | 2005-03-11 | 2005-10-19 | 锡矿山闪星锑业有限责任公司 | Method and its device for producing catalyst grade super high purity Sb2O3 |
| CN103924101A (en) * | 2014-04-28 | 2014-07-16 | 锡矿山闪星锑业有限责任公司 | Method and device for producing crude antimony trioxide by smelting of rich oxygen side-blown volatile molten pool |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1683250A (en) * | 2005-03-11 | 2005-10-19 | 锡矿山闪星锑业有限责任公司 | Method and its device for producing catalyst grade super high purity Sb2O3 |
| CN103924101A (en) * | 2014-04-28 | 2014-07-16 | 锡矿山闪星锑业有限责任公司 | Method and device for producing crude antimony trioxide by smelting of rich oxygen side-blown volatile molten pool |
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