CN110255572B - 利用气相二氧化硅生产过程中的副产物生产沉淀二氧化硅的方法 - Google Patents
利用气相二氧化硅生产过程中的副产物生产沉淀二氧化硅的方法 Download PDFInfo
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- CN110255572B CN110255572B CN201910679584.2A CN201910679584A CN110255572B CN 110255572 B CN110255572 B CN 110255572B CN 201910679584 A CN201910679584 A CN 201910679584A CN 110255572 B CN110255572 B CN 110255572B
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- Prior art keywords
- hydrochloric acid
- liquid
- reactor
- silicon dioxide
- sodium silicate
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 214
- 239000000377 silicon dioxide Substances 0.000 title claims abstract description 87
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 52
- 229910021485 fumed silica Inorganic materials 0.000 title claims abstract description 37
- 239000006227 byproduct Substances 0.000 title claims abstract description 36
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 176
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims description 54
- 239000004115 Sodium Silicate Substances 0.000 claims description 28
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 28
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 16
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 10
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 239000005049 silicon tetrachloride Substances 0.000 claims description 9
- 230000032683 aging Effects 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 238000004537 pulping Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 4
- 239000003570 air Substances 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 238000004220 aggregation Methods 0.000 claims description 3
- 230000002776 aggregation Effects 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000006228 supernatant Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 22
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 4
- 229960001866 silicon dioxide Drugs 0.000 description 38
- 239000007789 gas Substances 0.000 description 17
- 239000000047 product Substances 0.000 description 15
- 239000013078 crystal Substances 0.000 description 6
- 239000012071 phase Substances 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 5
- 239000012065 filter cake Substances 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000012512 characterization method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000005543 nano-size silicon particle Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- LRCFXGAMWKDGLA-UHFFFAOYSA-N dioxosilane;hydrate Chemical compound O.O=[Si]=O LRCFXGAMWKDGLA-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010447 natron Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000010058 rubber compounding Methods 0.000 description 1
- 229960004029 silicic acid Drugs 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicon Compounds (AREA)
Abstract
Description
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CN110255572A CN110255572A (zh) | 2019-09-20 |
CN110255572B true CN110255572B (zh) | 2022-09-13 |
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CN115340101B (zh) * | 2022-07-22 | 2023-09-26 | 江西黑猫炭黑股份有限公司 | 一种绿色轮胎用二氧化硅的生产方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102167334A (zh) * | 2011-03-18 | 2011-08-31 | 中国恩菲工程技术有限公司 | 多晶硅副产物四氯化硅处理方法 |
CN109678164A (zh) * | 2018-12-25 | 2019-04-26 | 江西双龙硅材料科技有限公司 | 一种绿色环保白炭黑、烧碱循环联合生产方法 |
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- 2019-07-26 CN CN201910679584.2A patent/CN110255572B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102167334A (zh) * | 2011-03-18 | 2011-08-31 | 中国恩菲工程技术有限公司 | 多晶硅副产物四氯化硅处理方法 |
CN109678164A (zh) * | 2018-12-25 | 2019-04-26 | 江西双龙硅材料科技有限公司 | 一种绿色环保白炭黑、烧碱循环联合生产方法 |
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Denomination of invention: Method for producing precipitated silica using by-products from the production process of fumed silica Effective date of registration: 20230630 Granted publication date: 20220913 Pledgee: Jingdezhen branch of Bank of Communications Co.,Ltd. Pledgor: JIANGXI BLACKCAT CARBON BLACK Co.,Ltd. Registration number: Y2023980046970 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Granted publication date: 20220913 Pledgee: Jingdezhen branch of Bank of Communications Co.,Ltd. Pledgor: JIANGXI BLACKCAT CARBON BLACK Co.,Ltd. Registration number: Y2023980046970 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right |