CN113248385B - 一种降低酸性硝基苯碱耗的方法 - Google Patents
一种降低酸性硝基苯碱耗的方法 Download PDFInfo
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- CN113248385B CN113248385B CN202110599051.0A CN202110599051A CN113248385B CN 113248385 B CN113248385 B CN 113248385B CN 202110599051 A CN202110599051 A CN 202110599051A CN 113248385 B CN113248385 B CN 113248385B
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- Prior art keywords
- nitrobenzene
- washing
- acidic
- water
- separator
- Prior art date
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- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 title claims abstract description 182
- 230000002378 acidificating effect Effects 0.000 title claims abstract description 56
- 239000003513 alkali Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000005406 washing Methods 0.000 claims abstract description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 239000002253 acid Substances 0.000 claims abstract description 55
- 239000002351 wastewater Substances 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 10
- 230000001546 nitrifying effect Effects 0.000 claims abstract description 8
- 230000003472 neutralizing effect Effects 0.000 claims abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000004064 recycling Methods 0.000 claims description 3
- 239000012670 alkaline solution Substances 0.000 claims 2
- 239000000243 solution Substances 0.000 claims 2
- 159000000000 sodium salts Chemical class 0.000 abstract description 9
- 229910017053 inorganic salt Inorganic materials 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-M phenolate Chemical compound [O-]C1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-M 0.000 description 4
- 229940031826 phenolate Drugs 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 239000012074 organic phase Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- IQUPABOKLQSFBK-UHFFFAOYSA-N 2-nitrophenol Chemical compound OC1=CC=CC=C1[N+]([O-])=O IQUPABOKLQSFBK-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- RBXVOQPAMPBADW-UHFFFAOYSA-N nitrous acid;phenol Chemical class ON=O.OC1=CC=CC=C1 RBXVOQPAMPBADW-UHFFFAOYSA-N 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/16—Separation; Purification; Stabilisation; Use of additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Water Treatments (AREA)
Abstract
Description
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CN113248385A CN113248385A (zh) | 2021-08-13 |
CN113248385B true CN113248385B (zh) | 2024-01-16 |
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Families Citing this family (2)
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CN114669083B (zh) * | 2022-03-12 | 2024-01-02 | 信丰华锐钨钼新材料有限公司 | 一种n1923弱碱性萃取分离钨和钼有机相的方法 |
CN115057781B (zh) * | 2022-06-28 | 2023-08-15 | 宁夏信广和新材料科技有限公司 | 一种硝基苯的生产方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102432410A (zh) * | 2011-09-21 | 2012-05-02 | 沈阳化工大学 | 管式连续硝化反应制取硝基化合物生产方法 |
CN102675118A (zh) * | 2012-04-25 | 2012-09-19 | 中国石油化工股份有限公司 | 一种硝基苯洗涤、分离方法 |
CN103664629A (zh) * | 2012-09-10 | 2014-03-26 | 中国石油化工股份有限公司 | 一种硝基苯洗涤、分离系统 |
CN103764612A (zh) * | 2011-08-31 | 2014-04-30 | 拜耳知识产权有限责任公司 | 连续制备硝基苯的方法 |
CN106278902A (zh) * | 2015-06-08 | 2017-01-04 | 中国石油化工股份有限公司 | 一种降低粗硝基苯中钠盐含量的方法 |
CN209143792U (zh) * | 2018-11-09 | 2019-07-23 | 宁夏华御化工有限公司 | 氯化苯碱性带料废水和酸性气体处理系统 |
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- 2021-05-31 CN CN202110599051.0A patent/CN113248385B/zh active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103764612A (zh) * | 2011-08-31 | 2014-04-30 | 拜耳知识产权有限责任公司 | 连续制备硝基苯的方法 |
CN102432410A (zh) * | 2011-09-21 | 2012-05-02 | 沈阳化工大学 | 管式连续硝化反应制取硝基化合物生产方法 |
CN102675118A (zh) * | 2012-04-25 | 2012-09-19 | 中国石油化工股份有限公司 | 一种硝基苯洗涤、分离方法 |
CN103664629A (zh) * | 2012-09-10 | 2014-03-26 | 中国石油化工股份有限公司 | 一种硝基苯洗涤、分离系统 |
CN106278902A (zh) * | 2015-06-08 | 2017-01-04 | 中国石油化工股份有限公司 | 一种降低粗硝基苯中钠盐含量的方法 |
CN209143792U (zh) * | 2018-11-09 | 2019-07-23 | 宁夏华御化工有限公司 | 氯化苯碱性带料废水和酸性气体处理系统 |
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Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Country or region after: China Patentee after: SINOPEC NANJING CHEMICAL RESEARCH INSTITUTE Co.,Ltd. Patentee after: SINOPEC NANJING CHEMICAL IND Co.,Ltd. Address before: Liuhe District of Nanjing City, Jiangsu province 210048 geguan Road No. 699 Patentee before: SINOPEC NANJING CHEMICAL RESEARCH INSTITUTE Co.,Ltd. Country or region before: China Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: SINOPEC NANJING CHEMICAL IND Co.,Ltd. |