UA76404C2 - Process and device for isolating organic substances from a gas mixture in which these organic substances are present - Google Patents
Process and device for isolating organic substances from a gas mixture in which these organic substances are present Download PDFInfo
- Publication number
- UA76404C2 UA76404C2 UA2001075479A UA2001075479A UA76404C2 UA 76404 C2 UA76404 C2 UA 76404C2 UA 2001075479 A UA2001075479 A UA 2001075479A UA 2001075479 A UA2001075479 A UA 2001075479A UA 76404 C2 UA76404 C2 UA 76404C2
- Authority
- UA
- Ukraine
- Prior art keywords
- column
- cooling
- gas
- liquid
- acrylonitrile
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract description 33
- 239000000126 substance Substances 0.000 title abstract description 16
- 239000000203 mixture Substances 0.000 title abstract description 14
- 239000007788 liquid Substances 0.000 abstract description 29
- 238000010791 quenching Methods 0.000 abstract 3
- 230000000171 quenching effect Effects 0.000 abstract 3
- 239000007789 gas Substances 0.000 description 82
- 238000001816 cooling Methods 0.000 description 59
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 34
- 239000000110 cooling liquid Substances 0.000 description 29
- 230000015572 biosynthetic process Effects 0.000 description 21
- 238000003786 synthesis reaction Methods 0.000 description 19
- 239000002826 coolant Substances 0.000 description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 16
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 16
- 238000004821 distillation Methods 0.000 description 13
- 229910021529 ammonia Inorganic materials 0.000 description 8
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 7
- 239000012716 precipitator Substances 0.000 description 7
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 7
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000011261 inert gas Substances 0.000 description 6
- 230000003993 interaction Effects 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 150000002825 nitriles Chemical class 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical compound C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- KYPOHTVBFVELTG-OWOJBTEDSA-N (e)-but-2-enedinitrile Chemical compound N#C\C=C\C#N KYPOHTVBFVELTG-OWOJBTEDSA-N 0.000 description 1
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 description 1
- 206010010071 Coma Diseases 0.000 description 1
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- STNJBCKSHOAVAJ-UHFFFAOYSA-N Methacrolein Chemical compound CC(=C)C=O STNJBCKSHOAVAJ-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- ZCQWOFVYLHDMMC-UHFFFAOYSA-N Oxazole Chemical compound C1=COC=N1 ZCQWOFVYLHDMMC-UHFFFAOYSA-N 0.000 description 1
- 241000531813 Rallus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- BYUANIDVEAKBHT-UHFFFAOYSA-N [Mo].[Bi] Chemical compound [Mo].[Bi] BYUANIDVEAKBHT-UHFFFAOYSA-N 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 150000008360 acrylonitriles Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000001055 chewing effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000002443 hydroxylamines Chemical class 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- FVSKHRXBFJPNKK-UHFFFAOYSA-N propionitrile Chemical compound CCC#N FVSKHRXBFJPNKK-UHFFFAOYSA-N 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 239000011885 synergistic combination Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- NNPPMTNAJDCUHE-UHFFFAOYSA-N trimethylmethane Natural products CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/24—Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons
- C07C253/26—Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons containing carbon-to-carbon multiple bonds, e.g. unsaturated aldehydes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1418—Recovery of products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1487—Removing organic compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/32—Separation; Purification; Stabilisation; Use of additives
- C07C253/34—Separation; Purification
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10037774A DE10037774A1 (de) | 2000-08-03 | 2000-08-03 | Verfahren und Vorrichtung zur Gewinnung organischer Substanzen aus einem diese Substanzen enthaltenden Gasgemisch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UA76404C2 true UA76404C2 (en) | 2006-08-15 |
Family
ID=7651145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| UA2001075479A UA76404C2 (en) | 2000-08-03 | 2001-07-31 | Process and device for isolating organic substances from a gas mixture in which these organic substances are present |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US6541652B2 (de) |
| EP (1) | EP1179359A3 (de) |
| JP (1) | JP2002121180A (de) |
| KR (1) | KR100793657B1 (de) |
| CN (2) | CN1341471A (de) |
| BG (1) | BG65354B1 (de) |
| CA (1) | CA2354741C (de) |
| DE (1) | DE10037774A1 (de) |
| EA (1) | EA004384B1 (de) |
| GC (1) | GC0000367A (de) |
| MX (1) | MX252094B (de) |
| UA (1) | UA76404C2 (de) |
| ZA (1) | ZA200106183B (de) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101474573B1 (ko) | 2006-08-08 | 2014-12-18 | 다우 아그로사이언시즈 엘엘씨 | 시아노피리딘을 함유하는 기상 반응 생성물의 켄칭 방법 |
| MX2009002810A (es) * | 2006-09-15 | 2009-03-31 | Dow Global Technologies Inc | Proceso para producir acido acrilico. |
| CN101439256B (zh) * | 2008-11-14 | 2011-01-12 | 江苏索普（集团）有限公司 | 膜法回收羰基化生产乙酸高压尾气中co的方法及其装置 |
| US7828962B2 (en) * | 2008-11-20 | 2010-11-09 | Merichem Company | Apparatus for treating a waste stream |
| CN101987274B (zh) * | 2009-08-06 | 2012-07-25 | 杰智环境科技股份有限公司 | 一种利用水蒸汽加强净化有机废气的装置及方法 |
| CN102274643B (zh) * | 2010-06-11 | 2016-08-31 | 山东省冶金设计院股份有限公司 | 在解吸塔中循环使用氮气的方法 |
| CN103566713A (zh) * | 2012-08-02 | 2014-02-12 | 宁波科元塑胶有限公司 | 丙烯腈吸收塔 |
| CN104941380A (zh) * | 2014-03-31 | 2015-09-30 | 英尼奥斯欧洲股份公司 | 用于淬冷流出物的改进的烟雾消除器操作 |
| CN105985261B (zh) * | 2015-01-31 | 2018-08-17 | 中国石油化工股份有限公司 | 乙腈精制方法 |
| CN104667558B (zh) * | 2015-02-27 | 2018-02-13 | 英尼奥斯欧洲股份公司 | 轻有机物汽提器塔系统和工艺 |
| EP3371145B1 (de) * | 2015-11-06 | 2023-07-19 | Uop Llc | Verwendung von c4-absorber zum ablösen von aldehyden |
| CN107473565A (zh) * | 2017-09-14 | 2017-12-15 | 广州沼能环保科技有限责任公司 | 一种高含水有机废弃物的预处理系统 |
| CN107754565B (zh) * | 2017-11-28 | 2019-08-13 | 宁波江北清纬环保科技有限公司 | 一种有毒气体收集装置 |
| CN112439303B (zh) * | 2019-09-05 | 2023-02-03 | 中石油吉林化工工程有限公司 | 丙烯腈尾气冷却低温吸收系统及吸收方法 |
| CN112439305A (zh) * | 2019-09-05 | 2021-03-05 | 中石油吉林化工工程有限公司 | 丙烯腈生产装置中的尾气净化方法 |
| CN111450665A (zh) * | 2020-05-07 | 2020-07-28 | 珠海三环节能科技有限公司 | 一种具有多级循环冷却回流的丙酮水吸收装置 |
| EP4000723A1 (de) * | 2020-11-20 | 2022-05-25 | Borealis AG | Vorrichtung und verfahren zur herstellung eines zulaufstroms zur lösungspolymerisierung |
| CN117504331A (zh) * | 2024-01-04 | 2024-02-06 | 新乡市巨晶化工有限责任公司 | 一种循环冷凝缓冲式丙腈蒸馏塔 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL243608A (de) * | 1958-09-22 | |||
| US3876508A (en) * | 1969-06-11 | 1975-04-08 | Stamicarbon | Distillation of acrylonitrile from aqueous solutions maintained at about ph3 |
| US3936360A (en) * | 1971-04-07 | 1976-02-03 | The Standard Oil Company | Process for distillation and recovery of olefinic nitriles |
| US4234510A (en) * | 1973-06-07 | 1980-11-18 | Standard Oil Company | Recovery of acrylonitrile or methacrylonitrile by condensation |
| JPS58124753A (ja) * | 1982-01-20 | 1983-07-25 | ザ・スタンダ−ド・オイル・カンパニ− | オレフインニトリルの回収法 |
| DE3375304D1 (en) * | 1982-05-28 | 1988-02-18 | Shell Int Research | Process for separating a multi-component liquid |
| US4720566A (en) * | 1986-10-23 | 1988-01-19 | Betz Laboratories, Inc. | Method and composition for inhibiting acrylonitrile polymerization |
| US5384404A (en) * | 1993-11-05 | 1995-01-24 | Lee; Jing M. | Process for manufacturing melamine from urea |
| US5462583A (en) * | 1994-03-04 | 1995-10-31 | Advanced Extraction Technologies, Inc. | Absorption process without external solvent |
| HRP960601B1 (en) * | 1995-12-20 | 2001-12-31 | Basf Ag | Process for separating medium boiling substances from a mixture of low, medium and high boiling substances |
| US5703268A (en) * | 1996-04-08 | 1997-12-30 | The Standard Oil Company | Acrylonitrile recovery process |
| TW382005B (en) * | 1996-04-30 | 2000-02-11 | Standard Oil Co Ohio | Process for recovery and recycle of ammonia from an acrylonitrile reactor refluent stream using an ammonium phosphate quench system |
| JP4186132B2 (ja) * | 1997-06-19 | 2008-11-26 | イネオス ユーエスエー エルエルシー | リン酸アンモニウムクエンチ系を用いてアクリロニトリル反応器流出液流からアンモニアを回収し再循環させるプロセス |
| JP4275754B2 (ja) * | 1997-07-08 | 2009-06-10 | イネオス ユーエスエー エルエルシー | 改善されたアクリロニトリルの回収プロセス |
| WO1999065583A1 (en) * | 1998-06-15 | 1999-12-23 | Solutia Inc. | Process for recovery of olefinically unsaturated nitriles |
| US6054603A (en) * | 1999-04-06 | 2000-04-25 | The Standard Oil Company | Acrylonitrile recovery process |
-
2000
- 2000-08-03 DE DE10037774A patent/DE10037774A1/de not_active Withdrawn
-
2001
- 2001-07-24 EP EP01306341A patent/EP1179359A3/de not_active Withdrawn
- 2001-07-26 ZA ZA200106183A patent/ZA200106183B/xx unknown
- 2001-07-30 US US09/916,336 patent/US6541652B2/en not_active Expired - Lifetime
- 2001-07-30 GC GCP20011542 patent/GC0000367A/en active
- 2001-07-31 UA UA2001075479A patent/UA76404C2/uk unknown
- 2001-08-02 EA EA200100744A patent/EA004384B1/ru not_active IP Right Cessation
- 2001-08-02 CA CA002354741A patent/CA2354741C/en not_active Expired - Lifetime
- 2001-08-03 BG BG105777A patent/BG65354B1/bg unknown
- 2001-08-03 JP JP2001237174A patent/JP2002121180A/ja active Pending
- 2001-08-03 CN CN01132577A patent/CN1341471A/zh active Pending
- 2001-08-03 KR KR1020010047045A patent/KR100793657B1/ko active IP Right Grant
- 2001-08-03 CN CN200910211525A patent/CN101693149A/zh active Pending
- 2001-08-03 MX MXPA01007893 patent/MX252094B/es active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| EP1179359A2 (de) | 2002-02-13 |
| CN101693149A (zh) | 2010-04-14 |
| GC0000367A (en) | 2007-03-31 |
| KR100793657B1 (ko) | 2008-01-10 |
| US20020087023A1 (en) | 2002-07-04 |
| EP1179359A3 (de) | 2002-06-19 |
| KR20020011936A (ko) | 2002-02-09 |
| EA200100744A2 (ru) | 2002-02-28 |
| EA200100744A3 (ru) | 2002-04-25 |
| CN1341471A (zh) | 2002-03-27 |
| CA2354741C (en) | 2009-12-08 |
| BG65354B1 (bg) | 2008-03-31 |
| CA2354741A1 (en) | 2002-02-03 |
| DE10037774A1 (de) | 2002-02-14 |
| MXPA01007893A (es) | 2004-06-25 |
| BG105777A (en) | 2002-04-30 |
| ZA200106183B (en) | 2003-01-27 |
| MX252094B (es) | 2007-12-03 |
| EA004384B1 (ru) | 2004-04-29 |
| US6541652B2 (en) | 2003-04-01 |
| JP2002121180A (ja) | 2002-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| UA76404C2 (en) | Process and device for isolating organic substances from a gas mixture in which these organic substances are present | |
| RU2619114C2 (ru) | Способ окислительного дегидрирования с низкими выбросами для получения бутадиена | |
| US10954186B2 (en) | Urea ammonium nitrate production comprising condensation | |
| RU2736379C1 (ru) | Способ очистки, способ получения и устройство для дистилляции акрилонитрила | |
| RU2172734C2 (ru) | Способ получения 3-(метилтио)пропаналя | |
| MXPA06007869A (es) | Proceso para la purificacion de nitrilos olefinicamente insaturados. | |
| RU2737363C2 (ru) | Дополнительный холодильник закалочной колонны | |
| RU2210566C2 (ru) | Способ выделения олефинненасыщенных нитрилов | |
| RU2223948C2 (ru) | Способ получения олефин-ненасыщенных нитрилов | |
| EP3233792A1 (de) | Verfahren zur harnstoffherstellung | |
| US20060205979A1 (en) | Method of purifying (meth)acrylic acid | |
| NL1008573C2 (nl) | Inrichting voor het uitvoeren van gas/vloeistof contact. | |
| US3451787A (en) | Apparatus for condensation of pure solid melamine | |
| RU2149159C1 (ru) | Способ непрерывного получения 3-(метилтио)-пропаналя (варианты) | |
| ZA200504177B (en) | Method for inhibiting polymerization during the recovery and purification of unsaturated mononitriles. | |
| TW201004909A (en) | A process for manufacturing unsaturated mononitriles to improve on-stream time and reduce fouling | |
| CN101659609A (zh) | 含水(甲基)丙烯酸的制备方法 | |
| US10654758B2 (en) | Urea ammonium nitrate production | |
| KR20220052985A (ko) | 산화 처리를 통한 폐수 중 포름알데히드의 제거 | |
| JPS6144861B2 (de) | ||
| CN105983321A (zh) | 氨中和装置及中和方法 | |
| PL199905B1 (pl) | Sposób zagospodarowania gazów odlotowych z wysokociśnieniowego procesu wytwarzania melaminy |