CN114907265B - 一种高效分离己内酰胺的添加剂及己内酰胺分离方法和系统 - Google Patents
一种高效分离己内酰胺的添加剂及己内酰胺分离方法和系统 Download PDFInfo
- Publication number
- CN114907265B CN114907265B CN202210608450.3A CN202210608450A CN114907265B CN 114907265 B CN114907265 B CN 114907265B CN 202210608450 A CN202210608450 A CN 202210608450A CN 114907265 B CN114907265 B CN 114907265B
- Authority
- CN
- China
- Prior art keywords
- sulfate
- caprolactam
- solution
- evaporation
- separating
- 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.)
- Active
Links
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 title claims abstract description 164
- 238000000926 separation method Methods 0.000 title claims description 14
- 239000000654 additive Substances 0.000 title abstract description 8
- 230000000996 additive effect Effects 0.000 title abstract description 8
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 88
- 238000000034 method Methods 0.000 claims abstract description 43
- 150000002148 esters Chemical class 0.000 claims abstract description 38
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 14
- 239000003513 alkali Substances 0.000 claims abstract description 10
- 238000001704 evaporation Methods 0.000 claims description 82
- 230000008020 evaporation Effects 0.000 claims description 81
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 53
- 239000000243 solution Substances 0.000 claims description 52
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 48
- 239000013078 crystal Substances 0.000 claims description 35
- 238000002156 mixing Methods 0.000 claims description 32
- 239000012071 phase Substances 0.000 claims description 32
- 239000002253 acid Substances 0.000 claims description 26
- 238000006386 neutralization reaction Methods 0.000 claims description 16
- 230000005945 translocation Effects 0.000 claims description 14
- 239000011259 mixed solution Substances 0.000 claims description 13
- 239000007791 liquid phase Substances 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 230000003472 neutralizing effect Effects 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000010413 mother solution Substances 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 230000017105 transposition Effects 0.000 abstract description 15
- 238000006237 Beckmann rearrangement reaction Methods 0.000 abstract description 4
- 150000002500 ions Chemical class 0.000 abstract description 2
- 230000003301 hydrolyzing effect Effects 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 72
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 36
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 34
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 34
- 235000011130 ammonium sulphate Nutrition 0.000 description 34
- 239000007788 liquid Substances 0.000 description 34
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 18
- 235000019341 magnesium sulphate Nutrition 0.000 description 18
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 16
- 235000003891 ferrous sulphate Nutrition 0.000 description 16
- 239000011790 ferrous sulphate Substances 0.000 description 16
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 16
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 16
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 description 16
- 229910052939 potassium sulfate Inorganic materials 0.000 description 16
- 235000011151 potassium sulphates Nutrition 0.000 description 16
- 229910052938 sodium sulfate Inorganic materials 0.000 description 16
- 235000011152 sodium sulphate Nutrition 0.000 description 16
- 239000012452 mother liquor Substances 0.000 description 14
- 238000003756 stirring Methods 0.000 description 12
- 239000006228 supernatant Substances 0.000 description 12
- 229940103272 aluminum potassium sulfate Drugs 0.000 description 11
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000003054 catalyst Substances 0.000 description 6
- VEZUQRBDRNJBJY-UHFFFAOYSA-N cyclohexanone oxime Chemical compound ON=C1CCCCC1 VEZUQRBDRNJBJY-UHFFFAOYSA-N 0.000 description 6
- 230000018044 dehydration Effects 0.000 description 6
- 238000006297 dehydration reaction Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 238000000605 extraction Methods 0.000 description 6
- 238000005649 metathesis reaction Methods 0.000 description 6
- 230000008707 rearrangement Effects 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 5
- WFDIJRYMOXRFFG-UHFFFAOYSA-N acetic acid anhydride Natural products CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 4
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 4
- QCUOBSQYDGUHHT-UHFFFAOYSA-L cadmium sulfate Chemical compound [Cd+2].[O-]S([O-])(=O)=O QCUOBSQYDGUHHT-UHFFFAOYSA-L 0.000 description 4
- 229910000331 cadmium sulfate Inorganic materials 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 229910000365 copper sulfate Inorganic materials 0.000 description 4
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 4
- 238000004821 distillation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 4
- 229910000368 zinc sulfate Inorganic materials 0.000 description 4
- 229960001763 zinc sulfate Drugs 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- HIFJUMGIHIZEPX-UHFFFAOYSA-N sulfuric acid;sulfur trioxide Chemical compound O=S(=O)=O.OS(O)(=O)=O HIFJUMGIHIZEPX-UHFFFAOYSA-N 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 229920006052 Chinlon® Polymers 0.000 description 1
- 125000003182 D-alloisoleucine group Chemical group [H]N([H])[C@@]([H])(C(=O)[*])[C@](C([H])([H])[H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010931 ester hydrolysis Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000001120 potassium sulphate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006462 rearrangement reaction Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000011973 solid acid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D223/00—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom
- C07D223/02—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom not condensed with other rings
- C07D223/06—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom not condensed with other rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D223/08—Oxygen atoms
- C07D223/10—Oxygen atoms attached in position 2
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/02—Preparation of lactams
- C07D201/04—Preparation of lactams from or via oximes by Beckmann rearrangement
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/16—Separation or 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
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Other In-Based Heterocyclic Compounds (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Abstract
Description
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202311046301.3A CN117327015A (zh) | 2022-01-28 | 2022-05-31 | 一种高效分离己内酰胺的添加剂 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2022101071066 | 2022-01-28 | ||
CN202210107106 | 2022-01-28 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202311046301.3A Division CN117327015A (zh) | 2022-01-28 | 2022-05-31 | 一种高效分离己内酰胺的添加剂 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN114907265A CN114907265A (zh) | 2022-08-16 |
CN114907265B true CN114907265B (zh) | 2023-10-20 |
Family
ID=82770413
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210608450.3A Active CN114907265B (zh) | 2022-01-28 | 2022-05-31 | 一种高效分离己内酰胺的添加剂及己内酰胺分离方法和系统 |
CN202311046301.3A Pending CN117327015A (zh) | 2022-01-28 | 2022-05-31 | 一种高效分离己内酰胺的添加剂 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202311046301.3A Pending CN117327015A (zh) | 2022-01-28 | 2022-05-31 | 一种高效分离己内酰胺的添加剂 |
Country Status (1)
Country | Link |
---|---|
CN (2) | CN114907265B (zh) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008179605A (ja) * | 2006-12-25 | 2008-08-07 | Daicel Chem Ind Ltd | ラクタムの製造方法 |
CN105408313A (zh) * | 2013-07-26 | 2016-03-16 | Capiii有限公司 | 一种工业规模回收己内酰胺和结晶硫酸铵的连续方法 |
CN211339352U (zh) * | 2019-09-18 | 2020-08-25 | 湖南百利工程科技股份有限公司 | 一种己内酰胺制备装置 |
CN114904472A (zh) * | 2022-01-28 | 2022-08-16 | 陕西科原环保节能科技有限公司 | 一种高效分离己内酰胺的添加剂及无氨或碱参与的己内酰胺分离方法和系统 |
CN217527429U (zh) * | 2022-01-28 | 2022-10-04 | 陕西科原环保节能科技有限公司 | 一种高效分离己内酰胺的系统 |
-
2022
- 2022-05-31 CN CN202210608450.3A patent/CN114907265B/zh active Active
- 2022-05-31 CN CN202311046301.3A patent/CN117327015A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008179605A (ja) * | 2006-12-25 | 2008-08-07 | Daicel Chem Ind Ltd | ラクタムの製造方法 |
CN105408313A (zh) * | 2013-07-26 | 2016-03-16 | Capiii有限公司 | 一种工业规模回收己内酰胺和结晶硫酸铵的连续方法 |
CN211339352U (zh) * | 2019-09-18 | 2020-08-25 | 湖南百利工程科技股份有限公司 | 一种己内酰胺制备装置 |
CN114904472A (zh) * | 2022-01-28 | 2022-08-16 | 陕西科原环保节能科技有限公司 | 一种高效分离己内酰胺的添加剂及无氨或碱参与的己内酰胺分离方法和系统 |
CN217527429U (zh) * | 2022-01-28 | 2022-10-04 | 陕西科原环保节能科技有限公司 | 一种高效分离己内酰胺的系统 |
Also Published As
Publication number | Publication date |
---|---|
CN117327015A (zh) | 2024-01-02 |
CN114907265A (zh) | 2022-08-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN112661682B (zh) | 一种生产dl-蛋氨酸的方法 | |
CN217527429U (zh) | 一种高效分离己内酰胺的系统 | |
CN102241601A (zh) | 一种亚氨基二乙酸的制备工艺 | |
CN114904472B (zh) | 高效分离己内酰胺无氨或碱参与的分离方法和系统 | |
CN217527428U (zh) | 一种无氨或碱参与的己内酰胺分离系统 | |
CN114907265B (zh) | 一种高效分离己内酰胺的添加剂及己内酰胺分离方法和系统 | |
CN106586990B (zh) | 用湿法磷酸生产磷酸二氢钾的方法 | |
CN103265443B (zh) | 一种工业生产高纯度亚氨基二乙酸的方法 | |
CN110066249B (zh) | 一种新型己内酰胺精制纯化方法 | |
CN111393323A (zh) | 高纯氰乙酸及氰乙酸酯和丙二酸酯的环保清洁生产方法 | |
CN111032621B (zh) | 一种分离长链氨基酸和二元酸的工艺 | |
CN114605276B (zh) | 甘氨酸的制备方法 | |
CN111909292B (zh) | 一种o-苄基羟胺树脂的制备方法与应用 | |
CN111847491A (zh) | 一种金刚烷胺生产废酸的处理方法 | |
CN115124009A (zh) | 利用磷酸氢钙回收料生产磷酸氢镁、磷酸二氢钾并联产高纯石膏的方法 | |
CN114394607A (zh) | 甘氨酸生产废水中硫酸钠的回收利用工艺 | |
JP2930736B2 (ja) | 塩酸、硫酸およびそのヒドロキシルアンモニウム塩およびアンモニウム塩を含む水性母液の処理法 | |
CN111138021A (zh) | 一种分离废水中氯化物和磷酸盐的方法 | |
CN114605336B (zh) | 一种合成4,6-二羟基嘧啶的后处理及其废水资源化利用的方法 | |
CN112479885B (zh) | 亚麻酸乙酯低成本环保生产工艺 | |
CN115974682B (zh) | 一种中性发酵液分离纯化丁二酸的清洁生产方法 | |
CN116496172B (zh) | 高酸度dmf精馏液的处理方法及dmf废液的处理方法 | |
CN109320408B (zh) | 一种4-(4-甲酰基苯氧基)苯甲醛的精制方法 | |
CN217409751U (zh) | 一种己二酸生产液回收利用系统 | |
WO2023123362A1 (zh) | 一种酸性氯化铜蚀刻废液制备高纯硫酸铜的方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20240913 Address after: Office Building No. 32, East Side, No. 9 Yanjiang Avenue, Yaojiagang, Dongshi Town, Zhijiang City, Yichang City, Hubei Province, 443206 Patentee after: Qingyuan Intelligent Technology Research Institute (Hubei) Co.,Ltd. Country or region after: China Address before: 710000 room 1905, building a, Haosheng garden, economic development zone, Xi'an, Shaanxi Province Patentee before: SHAANXI KEYUAN ENVIRONMENTAL PROTECTION ENERGY SAVING TECHNOLOGY Co.,Ltd. Country or region before: China Patentee before: HUBEI SANNING CHEMICAL Co.,Ltd. |