CN1876564A - Process for producing barium sulfide - Google Patents
Process for producing barium sulfide Download PDFInfo
- Publication number
- CN1876564A CN1876564A CN 200610050931 CN200610050931A CN1876564A CN 1876564 A CN1876564 A CN 1876564A CN 200610050931 CN200610050931 CN 200610050931 CN 200610050931 A CN200610050931 A CN 200610050931A CN 1876564 A CN1876564 A CN 1876564A
- Authority
- CN
- China
- Prior art keywords
- coal
- barium sulphide
- baso
- barite
- kiln
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- CJDPJFRMHVXWPT-UHFFFAOYSA-N barium sulfide Chemical compound [S-2].[Ba+2] CJDPJFRMHVXWPT-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000008569 process Effects 0.000 title description 2
- 239000003245 coal Substances 0.000 claims abstract description 39
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 30
- 238000002156 mixing Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 4
- 239000010428 baryte Substances 0.000 claims description 20
- 229910052601 baryte Inorganic materials 0.000 claims description 20
- 238000005245 sintering Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims 2
- 238000013467 fragmentation Methods 0.000 claims 1
- 238000006062 fragmentation reaction Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 230000009467 reduction Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 208000034656 Contusions Diseases 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 12
- 229910002091 carbon monoxide Inorganic materials 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 230000009466 transformation Effects 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 6
- 238000006722 reduction reaction Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 159000000009 barium salts Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000019086 sulfide ion homeostasis Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates the method for production of barium sulphide. The method comprises the following steps: mixing the barite powder and coal in proper proportion, bruising and grinding, putting water to get block, and then reduction roasting them with tunnel kiln, wheel kiln and down-draft kiln. The invention has the advantages of improving the conversion rate of barium sulphide and reducing the coal consumption.
Description
Technical field
The present invention relates to a kind of production method of producing barium sulphide, relate in the chemical industry with barite (BaSO
4) and coal (C) be the producing and manufacturing technique of raw material production barium sulphide (BaS).
Background technology
" inorganic chemicals industry handbook (Chemical Industry Press publishes volumes such as Tianjin chemical research institute in August, 1988), P.176-179 the production method of disclosed barium sulphide is a prior art to document.This production method be raw materials for production barite and coal after suitably pulverizing, with barite (BaSO
4＞85%) and coal (fixed carbon＞75%) by 100: the proportioning of 25-27 (by weight) joins converter after mixing continuously, carries out reduction reaction at 1000-1300 ℃.
Barite is reduced to BaS in converter carries out in following several modes:
Wherein barium sulfate mainly is to be reduced to barium sulphide by (3) formula by carbon monoxide.
After reduction reaction proceeded to certain hour, the furnace charge volumetric shrinkage was golden yellow melt and flows out, and is light brown or black after the cooling, and the trade name that contains the thick barium sulphide of impurity is a grey black.
Chinese patent application number is in the patent document of CN92105498.X, has invented a kind of manufacturing process of ultra-fine low-sulphur barium carbonate.This method cooperates ground barium sulfate and hard coal by a certain percentage and is placed on evenly that calcining generates the solubility barium sulphide in the 700-1250 ℃ of retort furnace, carries out carbonation reaction again, and the reaction desired concn is the 80-90 grams per liter, and temperature 50-60 ℃, time 60-80 minute.With the barium carbonate that generates through promptly getting particle diameter after desulfurization, dehydration, oven dry, the pulverizing below 1.2 μ m, the ultra-fine low-sulphur barium carbonate finished product of total sulfur between 0.1-0.18%.
Document " technology and the above-mentioned patented method of the disclosed production barium sulphide in the inorganic chemicals industry handbook exist the some shortcomings problem, and these problems are:
1. to be converted into the transformation efficiency of barium sulphide low for barium sulfate, generally has only 60-70%, because transformation efficiency is low, barium sulphide content in the grey black product generally has only about 60%, is difficult to reach more than 70%, can not get high-quality (being that barium sulphide content is high) grey black product, main is to have wasted the barite resource, also increase trucking costs simultaneously, also can produce a large amount of waste residues, contaminate environment.
2. coal consumption height.Coal consumption has the coal consumption of two aspects, and the one, the coal consumption that reduction needs, the 2nd, the coal consumption that burning needs.Document " produce one ton of thick barium sulphide (in BaS65%) and need 0.200 ton of standard coal (7000 kilocalories) bunker coal, goes back 0.510 ton in raw coal, adds up to 0.710 ton by inorganic chemicals industry handbook public technology.
Above not enough reason is unreasonable the causing of production method by prior art.At barium sulfate (BaSO
4) be reduced in the process of barium sulphide (BaS) BaSO is arranged
4Solid-solid reaction and BaSO with C
4With solid-solid/liquid/gas reactions of CO, barium sulfate and carbon constantly rotate in converter, and distance is big each other between the solid, are difficult to closely contact, are difficult to realize BaSO
4With the solid-solid reaction of C, has only main dependence BaSO
4Realize BaSO with solid-solid/liquid/gas reactions of CO
4Be converted into BaS, but be not to have only CO in the gas, also contain a large amount of N
2, O
2, CO
2Wait other gas, these gases will inevitably rise isolates and shielding effect, makes CO and BaSO
4Reaction incomplete, also can make the oxidized and further generation of the BaS BaCO of generation
3Take place Deng side reaction, owing to above reason causes BaSO exactly
4Be converted into the low and high reason of coal consumption of transformation efficiency of BaS, the heat insulation effect of converter simultaneously is poor, and gas flow is big, and thermosteresis is big, has also strengthened consumption of coal.
Summary of the invention
The objective of the invention is in order to overcome BaSO in the existing barium sulphide production method
4The transformation efficiency that is converted into BaS is low, and BaS content is low in the grey black, and the shortcoming that coal consumption is high has proposed a kind of new producing and manufacturing technique of producing barium sulphide.Production method of the present invention can make BaSO
4The transformation efficiency that is converted into BaS reaches more than 90%, even 100%.Transformation efficiency improves 20%-30% than existing production method, BaS content is brought up to more than the 80%-90% from 60%, make the barite raw material resources obtain fully and fully utilizing, make the ton consumption standard coal of producing BaS simultaneously, save coal more than 30% from reducing more than 0.7 ton below 0.5 ton.
The present invention is achieved in that with raw material barite and coal separated pulverizing be 1 by weight with barite and coal again: 0.1-0.4 prepares burden, according to barite BaSO after certain particle
4Content and coal carbon containing (C) amount different and different proportionings is arranged.Batching is after mixing, pulverize again and more than grinding fineness to 80 order, add water and make block material piece, in block sintering ovens such as tunnel furnace, annular kiln or down-draft kiln, with coal or coal gas 600-1200 ℃ of heat-agglomerating, material block sintering is crushed to certain particle size and just obtains thick barium sulphide (being grey black) product after cooling.
The present invention has following characteristics:
1, this law is at BaSO
4The main chemical reactions mechanism that is reduced to BaS by C is different with prior art main chemical reactions mechanism: this law makes BaSO owing to be to make block base by barite and coal dust mill back by compressing
4Form tight contact the, BaSO with C
4With C mainly is to realize BaSO by solid-solid reaction
4Be converted into BaS, its principal reaction formula is:
Existing technology mainly is to pass through BaSO in the document
4Realize BaSO with solid-solid/liquid/gas reactions of CO
4Be converted into BaS, the principal reaction formula is:
2. BaSO in this law
4Change into BaS and only need consume 2 carbon (C), and prior art generates a BaS and need consume 4 carbon monoxide (CO), and carbon monoxide mainly to be carbon and air incomplete combustion obtain, i.e. BaSO
4Change into BaS and need 4 carbon (C), therefore the reduction of this law has been lacked near one times with coal than the prior art reduction with coal, simultaneously, this law sintering needs temperature relatively low, what add this law employing is tunnel furnace, high insulating effect, temperature are easy to control again, and the required fuel coal of this law also lacks much with coal than prior art.Generally speaking, this law lacks 30% at least than the prior art consumption of coal.
3. this law adopts clamp dog sintering, BaSO
4Contact closely with C, make BaSO
4Abundant by the C reduction, so BaSO
4Be converted into the transformation efficiency height of BaS, behind the formation BaS, owing to be bulk product, block interior BaS is difficult for and O
2And CO
2Contact, the reducing atmosphere of tunnel furnace are easy to control, and therefore, BaS is by O
2Further oxidation and by CO
2Side reactions such as further carbonating are difficult for taking place, and make the BaS stable content in the product.This law can make BaSO
4Near and reach 100% the BaS that is converted into, BaSO
4Utilization ratio can be near 100%.
4. this law is by BaSO
4Be converted into the transformation efficiency height of BaS, i.e. barite resource utilization height, the quantity of slag that causes in the processing is very little, and barium salt is few in the slag, and this not only brings good economic benefits, and brings good social benefit and environmental benefit.
Embodiment
Embodiment 1:
Implement material choice:
Barite: BaSO
4Content is 98%, and loss on ignition is 0.1%, and barite feedstock capture point is Guizhou Province's Xifeng County.
Coal: carbon containing (C) amount is 62%, and ash is 20%, and the feed coal collection point is the Jinsha County, Guizhou Province.
Implementation method:
Barite is crushed to _ the following granularity of 30mm earlier, 120 tons in barite and coal are prepared burden for 30 tons by weight at 1: 0.25, mixing is milled to 80 orders with ball mill, and screen over-size is less than 2%, the fecula material adds 14% water, make the material piece of 60 * 120 * 240mm, will expect that piece is deposited on the tunnel kiln car, pushes in the tunnel furnace and calcines, 950 ℃ of thermal zone top temperatures, the material piece is 2 hours in thermal zone retention time.
Result of implementation:
92.37 tons of thick barium sulphide (grey black) products that obtains, test b aS content is 90.6% by analysis.BaSO
4Transformation efficiency be 98.3%, grey black total consumption of coal amount per ton (feed coal add kiln with coal-fired) is 420kg.
Implement 2:
Implement raw material:
Barite: BaSO
4Content is 90%, and loss on ignition is 2.5%,, barite feedstock capture point is the Tianzhu County, Guizhou Province.
Coal: carbon containing (C) amount is 62%, and ash is 20%, and the feed coal collection point is the Jinsha County, Guizhou Province.
Implementation method:
Barite is crushed to _ the following granularity of 30mm earlier, 150 tons of barites and 30 tons of feed coals were prepared burden by weight 1: 0.20, mixing is milled to 80 orders with ball mill, and screen over-size is less than 2%, the fecula material adds 14% water, make the material piece of 60 * 120 * 240mm, will expect that piece is deposited on the tunnel kiln car, pushes in the tunnel furnace and calcines, 950 ℃ of the thermal zone top temperatures of tunnel furnace, the material piece is 2 hours in thermal zone retention time.
Result of implementation:
115 tons of thick barium sulphide (grey black) products that obtains, test b aS content is 84.2% by analysis.BaSO
4Transformation efficiency be 99.1%, grey black total consumption of coal amount per ton (feed coal add kiln with coal-fired) is 415kg.
Claims (5)
1. novel method of producing barium sulphide, this method is that barite and coal are prepared burden, behind the mixing, through fragmentation and grinding, and after adding water moulding base, put into block sintering kiln and carry out reducing roasting, and obtain thick barium sulphide product, it is characterized in that its forming composition that adds behind the water moulding base is a block.
2. the described a kind of novel method of producing barium sulphide of claim 1, it is characterized in that the proportion scale that is adopted is meant that barite and coal are by weight 1: 0.1-0.4 prepares burden.
3. the described a kind of novel method of producing barium sulphide of claim 1 is characterized in that block sintering kiln refers to block sintering kilns such as tunnel furnace, annular kiln or down-draft kiln.
4. the described a kind of novel method of producing barium sulphide of claim 1, the temperature that it is characterized in that reducing roasting is 600 ℃-1200 ℃.
5. the described a kind of novel method of producing barium sulphide of claim 1 is characterized in that its raw material behind broken and grinding, and granularity reaches more than 80 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610050931 CN1876564A (en) | 2006-01-26 | 2006-01-26 | Process for producing barium sulfide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610050931 CN1876564A (en) | 2006-01-26 | 2006-01-26 | Process for producing barium sulfide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1876564A true CN1876564A (en) | 2006-12-13 |
Family
ID=37509157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610050931 Pending CN1876564A (en) | 2006-01-26 | 2006-01-26 | Process for producing barium sulfide |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110092357A (en) * | 2019-04-23 | 2019-08-06 | 贵州红星发展股份有限公司 | A kind of preparation method of high-purity barium sulphide |
-
2006
- 2006-01-26 CN CN 200610050931 patent/CN1876564A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110092357A (en) * | 2019-04-23 | 2019-08-06 | 贵州红星发展股份有限公司 | A kind of preparation method of high-purity barium sulphide |
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| C12 | Rejection of a patent application after its publication | ||
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