CN103288689A - Preparation method of 1-naphthylamine 8-sulfonic acid - Google Patents
Preparation method of 1-naphthylamine 8-sulfonic acid Download PDFInfo
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- CN103288689A CN103288689A CN 201210053785 CN201210053785A CN103288689A CN 103288689 A CN103288689 A CN 103288689A CN 201210053785 CN201210053785 CN 201210053785 CN 201210053785 A CN201210053785 A CN 201210053785A CN 103288689 A CN103288689 A CN 103288689A
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- CN
- China
- Prior art keywords
- sulfonic acid
- acid
- naphthylamine
- naphthalene
- preparation
- 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.)
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- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- CYJJLCDCWVZEDZ-UHFFFAOYSA-N 8-aminonaphthalene-1-sulfonic acid Chemical compound C1=CC(S(O)(=O)=O)=C2C(N)=CC=CC2=C1 CYJJLCDCWVZEDZ-UHFFFAOYSA-N 0.000 title abstract description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 18
- RJKGJBPXVHTNJL-UHFFFAOYSA-N 1-nitronaphthalene Chemical compound C1=CC=C2C([N+](=O)[O-])=CC=CC2=C1 RJKGJBPXVHTNJL-UHFFFAOYSA-N 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002253 acid Substances 0.000 claims abstract description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 claims abstract 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims 1
- 150000005002 naphthylamines Chemical class 0.000 claims 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000126 substance Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012847 fine chemical Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
本发明1-萘胺8-磺酸的制备方法属于化学化工领域，涉及精细化学品的制备，具体来说是一种1-萘胺8-磺酸的制备方法。The preparation method of 1-naphthylamine 8-sulfonic acid of the present invention belongs to the chemical industry field, relates to the preparation of fine chemicals, specifically a kind of preparation method of 1-naphthylamine 8-sulfonic acid.
1-萘胺8-磺酸是一种精细化学品，可用于制备染料、医药、农药等。1-Naphthylamine 8-sulfonic acid is a kind of fine chemicals, which can be used in the preparation of dyes, medicines, pesticides, etc.
本发明的目的在于提供一种制备1-萘胺8-磺酸的方法。The object of the present invention is to provide a kind of method for preparing 1-naphthylamine 8-sulfonic acid.
本发明的目的可以通过以下步骤来实现：The object of the present invention can be achieved through the following steps:
(1)本发明1-萘胺8-磺酸的制备方法是以萘为原料，首先将萘在35-45℃下熔解于硫酸中，然后反应2-3小时，得到1-萘磺酸，这个反应的化学式如下：(1) The preparation method of 1-naphthylamine 8-sulfonic acid of the present invention is to be raw material with naphthalene, at first naphthalene is melted in sulfuric acid at 35-45 ℃, reacts 2-3 hours then, obtains 1-naphthalenesulfonic acid, The chemical formula for this reaction is as follows:
(2)将上述产物1-萘磺酸与硝酸和硫酸的混合酸反应，生成1-磺酸基8-硝基萘，反应在30-95℃下进行，这个反应的化学式如下：(2) The above product 1-naphthalenesulfonic acid is reacted with the mixed acid of nitric acid and sulfuric acid to generate 1-sulfonic acid group 8-nitronaphthalene, and the reaction is carried out at 30-95°C. The chemical formula of this reaction is as follows:
(3)将上述产物1-磺酸基8-硝基萘与铁粉和水蒸气反应，生成1-萘胺8-磺酸，反应在60-180℃下进行，这个反应的化学式如下：(3) The above product 1-sulfonic acid group 8-nitronaphthalene is reacted with iron powder and water vapor to generate 1-naphthylamine 8-sulfonic acid, and the reaction is carried out at 60-180 ° C. The chemical formula of this reaction is as follows:
本发明的优点：Advantages of the present invention:
生产中产生的氧化硫废气可以用降膜吸收器吸收后作为硫酸应用于生产中，减轻了环境污染。The sulfur oxide waste gas produced in production can be absorbed by falling film absorber and used as sulfuric acid in production, which reduces environmental pollution.
下面通过实施例进一步详述：Further detail by embodiment below:
年产1000吨1-萘胺8-磺酸生产装置，首先将萘在35-45℃下熔解于硫酸中，然后反应2-3小时，得到1-萘磺酸；然后将上述产物1-萘磺酸与硝酸和硫酸的混合酸反应，生成1-磺酸基8-硝基萘，反应在30-95℃下进行；第三步将上述产物1-磺酸基8-硝基萘与铁粉和水蒸气反应，生成1-萘胺8-磺酸，反应在60-180℃下进行。The 1-naphthylamine 8-sulfonic acid production plant with an annual output of 1,000 tons, first melts naphthalene in sulfuric acid at 35-45°C, and then reacts for 2-3 hours to obtain 1-naphthalenesulfonic acid; then the above-mentioned product 1-naphthalene Sulfonic acid reacts with the mixed acid of nitric acid and sulfuric acid to generate 1-sulfonic acid group 8-nitronaphthalene, and the reaction is carried out at 30-95 °C; the third step is to combine the above product 1-sulfonic acid group 8-nitronaphthalene with iron The powder reacts with steam to generate 1-naphthylamine 8-sulfonic acid, and the reaction is carried out at 60-180°C.
Claims (1)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210053785 CN103288689A (en) | 2012-02-27 | 2012-02-27 | Preparation method of 1-naphthylamine 8-sulfonic acid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210053785 CN103288689A (en) | 2012-02-27 | 2012-02-27 | Preparation method of 1-naphthylamine 8-sulfonic acid |
Publications (1)
| Publication Number | Publication Date |
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| CN103288689A true CN103288689A (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210053785 Pending CN103288689A (en) | 2012-02-27 | 2012-02-27 | Preparation method of 1-naphthylamine 8-sulfonic acid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105481728A (en) * | 2015-12-25 | 2016-04-13 | 铜陵化工集团有机化工有限责任公司 | Preparation method of 1-naphthylamino-8-sulfonic acid |
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2012
- 2012-02-27 CN CN 201210053785 patent/CN103288689A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105481728A (en) * | 2015-12-25 | 2016-04-13 | 铜陵化工集团有机化工有限责任公司 | Preparation method of 1-naphthylamino-8-sulfonic acid |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130911 |