CN106632047A - 一种吡唑酮生产工艺 - Google Patents

一种吡唑酮生产工艺 Download PDF

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Publication number
CN106632047A
CN106632047A CN201510774382.8A CN201510774382A CN106632047A CN 106632047 A CN106632047 A CN 106632047A CN 201510774382 A CN201510774382 A CN 201510774382A CN 106632047 A CN106632047 A CN 106632047A
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CN
China
Prior art keywords
carrying
pyrazolone
producing
hydrolysis
neutralization
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
Application number
CN201510774382.8A
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English (en)
Inventor
胡江海
张晓磊
于飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningxia Jihua Environmental Safety Technology Co Ltd
Original Assignee
Ningxia Jihua Environmental Safety Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ningxia Jihua Environmental Safety Technology Co Ltd filed Critical Ningxia Jihua Environmental Safety Technology Co Ltd
Priority to CN201510774382.8A priority Critical patent/CN106632047A/zh
Publication of CN106632047A publication Critical patent/CN106632047A/zh
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/14—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members 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
    • C07D231/18—One oxygen or sulfur atom
    • C07D231/20—One oxygen atom attached in position 3 or 5
    • C07D231/22—One oxygen atom attached in position 3 or 5 with aryl radicals attached to ring nitrogen atoms
    • C07D231/26—1-Phenyl-3-methyl-5- pyrazolones, unsubstituted or substituted on the phenyl ring

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

吡唑酮是一种重要的化工产品。吡唑酮工艺流程可分为重氮化、还原、水解、中和、氨化、缩合等几个主要步骤。

Description

一种吡唑酮生产工艺
1、工艺原理
（1）重氮化
苯胺（对甲苯胺）与亚硝酸钠、硫酸反应，生成重氮化物：
（2）还原
重氮物与亚硫酸铵、亚硫酸氢铵（混合液称还原液）反应，生成重氮化铵盐：
（3）水解
重氮化物铵盐与水、硫酸反应
（1） 中和反应
（2） 缩合反应
2、工艺流程
吡唑酮工艺流程可分为重氮化、还原、水解、中和、氨化、缩合等几个主要
步骤。

Claims (2)

1.一种吡唑酮生产工艺。
2.吡唑酮生产过程中原料成分及配比。
CN201510774382.8A 2015-11-14 2015-11-14 一种吡唑酮生产工艺 Pending CN106632047A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510774382.8A CN106632047A (zh) 2015-11-14 2015-11-14 一种吡唑酮生产工艺

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510774382.8A CN106632047A (zh) 2015-11-14 2015-11-14 一种吡唑酮生产工艺

Publications (1)

Publication Number Publication Date
CN106632047A true CN106632047A (zh) 2017-05-10

Family

ID=58850859

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510774382.8A Pending CN106632047A (zh) 2015-11-14 2015-11-14 一种吡唑酮生产工艺

Country Status (1)

Country Link
CN (1) CN106632047A (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107827821A (zh) * 2017-10-31 2018-03-23 南通醋酸化工股份有限公司 一种吡唑酮系列产品连续流清洁生产工艺
CN107915343A (zh) * 2017-10-31 2018-04-17 南通醋酸化工股份有限公司 一种吡唑酮系列产品生产过程中的工艺废水处理工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615917A (en) * 1952-10-28 Process for the manufacture of
RU2235091C1 (ru) * 2003-04-14 2004-08-27 Открытое акционерное общество "Пигмент" Способ получения 1-(4'-толил)-3-метил-5-пиразолона
CN104610093A (zh) * 2015-02-05 2015-05-13 江苏艾科维科技有限公司 苯肼的合成方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615917A (en) * 1952-10-28 Process for the manufacture of
RU2235091C1 (ru) * 2003-04-14 2004-08-27 Открытое акционерное общество "Пигмент" Способ получения 1-(4'-толил)-3-метил-5-пиразолона
CN104610093A (zh) * 2015-02-05 2015-05-13 江苏艾科维科技有限公司 苯肼的合成方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107827821A (zh) * 2017-10-31 2018-03-23 南通醋酸化工股份有限公司 一种吡唑酮系列产品连续流清洁生产工艺
CN107915343A (zh) * 2017-10-31 2018-04-17 南通醋酸化工股份有限公司 一种吡唑酮系列产品生产过程中的工艺废水处理工艺

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Application publication date: 20170510