CN1393406A - Antioxidizing agent for ammonium sulfite - Google Patents
Antioxidizing agent for ammonium sulfite Download PDFInfo
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- CN1393406A CN1393406A CN 01108596 CN01108596A CN1393406A CN 1393406 A CN1393406 A CN 1393406A CN 01108596 CN01108596 CN 01108596 CN 01108596 A CN01108596 A CN 01108596A CN 1393406 A CN1393406 A CN 1393406A
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- reducing agent
- inorganic
- ammonium sulphite
- organic
- antioxidant
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- Anti-Oxidant Or Stabilizer Compositions (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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Abstract
An anti-oxidizing agent for ammonium sulfite is built up from a group of strong organic and inorganic reducers. Its advantages are relatively complemented performance, low cost, and high anti-oxidizing effect.
Description
The present invention relates to the sulphite antioxidant, especially the ammonium sulphite antioxidant.
Ammonium sulphite is mainly used in papermaking and agricultural.Because ammonium sulphite has reductibility, is easy to oxidation by air in production, packing, storage, transportation, thereby makes purity drop, influences quality product.Simultaneously, ammonium sulphite is the moisture absorption very easily, storage period is quite short, standard laid down by the ministries or commissions of the Central Government HG/T2784-2785-1996 requires the ammonium sulphite first grade should be not less than 90% at a month intensive amount, and the ammonium sulphite that does not in fact add oxidation inhibitor generally can only be stored fortnight, its content has just dropped to below 90%, especially in envrionment temperature higher summer.Concerning the user, use the low levels ammonium sulphite not only in a disguised form to increase use cost, also influenced result of use.To the manufacturer, product is in case overstocked, and ammonium sulphite content reduces, and just can directly influence sale, causes damage.
Show also there is not a kind of antioxidant that is specifically designed to ammonium sulphite at present according to foreign data.There are some one-component reductive agents can play antioxygenation to sulphite, as " sulfuric acid industry " 1995, (2), 55 " antioxidant A is to the researchs of S-WAT antioxidant effect "; " chemical goods scientific and technological information " 1993 (2), 51 " sodium hyposulfate " or the like.Add single oxidation inhibitor, though can play antioxidant effect, use cost is higher, and industry is applied and had any problem.
In addition, some researchs are also arranged by to the adjustment of ammonium sulphite production technique, improve terms of packing and storage requirement and wait and reduce sulfite oxidation speed, as " sulfuric acid industry " 1987 (4), 32, " reducing the measure of sulfite oxidation speed ".These methods can play oxidation resistant effect to a certain extent, but all can't keep the long period.
The present invention utilizes reductibility to be better than several materials of ammonium sulphite, has designed compound prescription type oxidation inhibitor.The material that is utilized is: dimethyl-p-phenylenediamine, Ursol D, Resorcinol, hydroxyquinone, pyrocatechol, Sulfothiorine, sodium sulphite, thiourea peroxide etc.
(quality %) is as follows for composition of the present invention:
20%～80% organic reducing agent
20%～80% inorganic reducing agent
Wherein, organic reducing agent is selected from dimethyl-p-phenylenediamine, Ursol D, Resorcinol, hydroxyquinone, pyrocatechol, pyrogallol, naphthyl alcohol, 2-Naphthol, Resorcinol, tert-butyl catechol a kind of or two, three kind;
Inorganic reducing agent is selected from one or both of Sulfothiorine, sodium hyposulfate, thiourea peroxide, sodium sulphite, sodium bisulphite formaldehyde.
Best composition of the present invention (quality %) is as follows:
60%～75% organic reducing agent
25%～40% inorganic reducing agent
Wherein, organic reducing agent is selected from a kind of of Resorcinol, 2-Naphthol, pyrogallol or two, three kind; Inorganic reducing agent is a sodium hyposulfate.
Another best form (quality %) is:
30%～65% organic reducing agent
35%～70% inorganic reducing agent
Wherein, organic reducing agent is selected from pyrogallol, dimethyl-p-phenylenediamine; Inorganic reducing agent is selected from one or both of Sulfothiorine, sodium hyposulfate.
The present invention compared with prior art has following advantage:
1, the ammonium sulphite that adds this composite antioxidant, its content can be kept more than 90% in 3～April.
2, this composite antioxidant is applied in the ammonium sulphite, can make ammonium sulphite be difficult for the moisture absorption, keeps loose better in storage period.
3, the starting material source is abundant, and with low cost, consumption is few, and effect is obvious.
Embodiment one:
60% 2-Naphthol, Resorcinol, pyrogallol (organic reducing agent)
40% sodium hyposulfate (inorganic reducing agent)
With the 0.6g pyrogallol, the 0.6g 2-Naphthol, the 0.9g Resorcinol, the 1.4g sodium hyposulfate carries out mechanically mixing, makes oxidation inhibitor.Add in the 1000g ammonium sulphite, mix thoroughly, promptly get the ammonium sulphite finished product that contains antioxidant.
The oxidation inhibitor effect measuring
| Time | Around | The 6th week | The 8th week | The 16 week |
| Ammonium sulphite content (%) | ????97.71 | ????97.50 | ????97.83 | ??97.21 |
Stored four months, the product appearance physical condition is good, and shatter value is better.
Embodiment two:
35% Resorcinol (organic reducing agent)
65% sodium hyposulfate, sodium sulphite (inorganic reducing agent)
With 1.5g Resorcinol, 2g sodium hyposulfate, 0.8g sodium sulphite carries out mechanically mixing, makes antioxidant.Add in the 1000g ammonium sulphite and mix thoroughly, must contain the ammonium sulphite finished product of oxidation inhibitor.
The oxidation inhibitor effect measuring
| Time | The 6th week | The 8th week | The tenth week | The 16 week |
| Ammonium sulphite content (%) | ???97.88 | ???97.45 | ???97.38 | ??97.40 |
Stored four months, the product appearance physical condition is good, and shatter value is better.
Embodiment three:
30% dimethyl-p-phenylenediamine pyrogallol (organic reducing agent)
70% Sulfothiorine (inorganic reducing agent)
With the 0.9g dimethyl-p-phenylenediamine, the 0.6g pyrogallol, 3.5g Sulfothiorine carries out mechanically mixing, makes oxidation inhibitor.Add in the 1000g ammonium sulphite and mix thoroughly, promptly get the ammonium sulphite finished product that contains oxidation inhibitor.
The oxidation inhibitor effect measuring
| Time | Around | The 6th week | The tenth week | The 16 week |
| Ammonium sulphite content (%) | ??98.02 | ??97.88 | ??97.04 | ??96.24 |
Stored four months, the product appearance physical condition is good, and shatter value is better.One-component antioxidant effect contrast: add the 1.5g dimethyl-p-phenylenediamine in the 1000g ammonium sulphite, mix.
The ammonium sulphite content
| Time | Second week | Around | The 6th week | The 8th week |
| Ammonium sulphite content (%) | ????93.60 | ????92.82 | ????91.49 | ????89.86 |
The anti oxidation time of one-component is no more than two months, compares with compound antioxidant, and effect is relatively poor.
Claims (5)
1 one kinds of ammonium sulphite antioxidants is characterized in that this antioxidant is made up of organic and inorganic strong reductant, and set of dispense is than being (by percentage to the quality):
20%～80% organic reducing agent
20%～80% inorganic reducing agent
Wherein organic reducing agent is selected from dimethyl-p-phenylenediamine, Resorcinol, Ursol D, hydroxyquinone, pyrocatechol, pyrogallol, naphthyl alcohol, 2-Naphthol, Resorcinol, tert-butyl catechol, a kind of or two, three kind; Inorganic reducing agent is selected from Sulfothiorine, sodium hyposulfate, one or both of sodium sulphite, thiourea peroxide, sodium bisulphite formaldehyde.
2 according to the described ammonium sulphite antioxidant of claim 1, it is characterized in that each set of dispense than being (by percentage to the quality):
60%～75% organic reducing agent
25%～40% inorganic reducing agent
Wherein organic reducing agent is selected from a kind of of Resorcinol, 2-Naphthol, pyrogallol or two, three kind; Inorganic reducing agent is a sodium hyposulfate.
3 according to the described ammonium sulphite antioxidant of claim 2, it is characterized in that each set of dispense than being (by percentage to the quality):
60% organic reducing agent
40% inorganic reducing agent
Wherein organic reducing agent is a Resorcinol, 2-Naphthol, pyrogallol; Inorganic reducing agent is a sodium hyposulfate.
4 according to the described ammonium sulphite antioxidant of claim 1, it is characterized in that each set of dispense than being (by percentage to the quality):
30%～65% organic reducing agent
35%～70% inorganic reducing agent
Wherein organic reducing agent is selected from one or both of pyrogallol, dimethyl-p-phenylenediamine; Inorganic reducing agent is one or both of Sulfothiorine, sodium hyposulfate.
5 according to the described ammonium sulphite antioxidant of claim 4, it is characterized in that each set of dispense than being (by percentage to the quality):
30% organic reducing agent
70% inorganic reducing agent
Wherein organic reducing agent is a dimethyl-p-phenylenediamine, pyrogallol; Inorganic reducing agent is a Sulfothiorine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01108596 CN1199859C (en) | 2001-07-04 | 2001-07-04 | Antioxidizing agent for ammonium sulfite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01108596 CN1199859C (en) | 2001-07-04 | 2001-07-04 | Antioxidizing agent for ammonium sulfite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1393406A true CN1393406A (en) | 2003-01-29 |
| CN1199859C CN1199859C (en) | 2005-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01108596 Expired - Fee Related CN1199859C (en) | 2001-07-04 | 2001-07-04 | Antioxidizing agent for ammonium sulfite |
Country Status (1)
| Country | Link |
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| CN (1) | CN1199859C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7749587B2 (en) | 2003-09-30 | 2010-07-06 | Dainippon Ink And Chemicals, Inc. | Optical disk |
| CN107903192A (en) * | 2017-11-28 | 2018-04-13 | 绍兴杰派化工科技有限公司 | A kind of H soda acids fusant recycling recoverying and utilizing method |
| CN112342079A (en) * | 2020-11-11 | 2021-02-09 | 何虎林 | Water-based cutting fluid for diamond wire saw |
-
2001
- 2001-07-04 CN CN 01108596 patent/CN1199859C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7749587B2 (en) | 2003-09-30 | 2010-07-06 | Dainippon Ink And Chemicals, Inc. | Optical disk |
| CN1860536B (en) * | 2003-09-30 | 2014-03-05 | 大日本油墨化学工业株式会社 | Optical disk |
| CN107903192A (en) * | 2017-11-28 | 2018-04-13 | 绍兴杰派化工科技有限公司 | A kind of H soda acids fusant recycling recoverying and utilizing method |
| CN112342079A (en) * | 2020-11-11 | 2021-02-09 | 何虎林 | Water-based cutting fluid for diamond wire saw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1199859C (en) | 2005-05-04 |
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Granted publication date: 20050504 Termination date: 20130704 |