CN109592648A - Utilize the production method of paraffinic gases synthesizing colourless sodium hydrosulfide - Google Patents
Utilize the production method of paraffinic gases synthesizing colourless sodium hydrosulfide Download PDFInfo
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- CN109592648A CN109592648A CN201811431049.7A CN201811431049A CN109592648A CN 109592648 A CN109592648 A CN 109592648A CN 201811431049 A CN201811431049 A CN 201811431049A CN 109592648 A CN109592648 A CN 109592648A
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- production method
- sodium hydrosulfide
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- paraffinic gases
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/22—Alkali metal sulfides or polysulfides
- C01B17/32—Hydrosulfides of sodium or potassium
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
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Abstract
The present invention provides a kind of production method using paraffinic gases synthesizing colourless sodium hydrosulfide, and oxygen scavenger is added in liquid alkaline, oxygen is removed, fundamentally prevents the generation of sodium polysulfide, and oxygen scavenger and product will not impact downstream product.A kind of production method using paraffinic gases synthesizing colourless sodium hydrosulfide; the following steps are included: in the alkaline solution that mass concentration is 28-50%; 0.1%-3% oxygen scavenger is added; and it maintains the temperature under the conditions of 30-90 DEG C; stand 1-6 hours; hydrogen sulfide reaction is then passed to, and protective gas is added and is protected, colorless and transparent sodium hydrosulfide can be obtained.
Description
Technical field
The present invention relates to a kind of production methods of NaHS, and in particular to a kind of to utilize paraffinic gases synthesizing colourless sulphur hydrogen
The production method for changing sodium solution, belongs to chemical technology field.
Background technique
NaHS is a kind of novel industrial chemicals, can be widely applied to various industries.For synthesizing in dye industry
Organic intermediate and the auxiliary agent for preparing sulfur dye, depilation and tanning etc. of the industry for rawhide.Chemical fertilizer industry is for sloughing work
Property charcoal in free sulfur, mining industry is largely used to copper ore dressing, is manufacture for sulfurous acid dyeing etc. in staple fibre production
The raw material of ammonium sulfide and the positive mercaptan semi-finished product of pesticide, is also used to wastewater treatment etc..NaHS has stronger reproducibility, just raw
It is light yellow or yellow green when output is come, but as its elongated color of storage time can deepen, this is because NaHS
Being oxidized the coloured sodium polysulfide of generation causes.When NaHS, which is used as reducing agent, to be reacted, due to there is it to be oxidized
Impurity exist, side reaction can be made to greatly increase, influence the purity of reduction reaction rate and product.It is closed using this kind of NaHS
When at downstream product, the color shades of downstream product can be made to deepen, influence product quality.
Can add inferior sulfate radical and bisulfite that can remove sodium polysulfide at present, inferior sulfate radical, bisulfite and
The thiosulfate anion of generation will affect the yield and product quality of downstream product.
Summary of the invention
The purpose of the present invention is to provide a kind of production method using paraffinic gases synthesizing colourless sodium hydrosulfide,
Add oxygen scavenger in liquid alkaline, removes oxygen, fundamentally prevent the generation of sodium polysulfide, and oxygen scavenger and product will not be to downstreams
Product impacts.
The present invention to achieve the above object, is achieved through the following technical solutions:
A kind of production method using paraffinic gases synthesizing colourless sodium hydrosulfide, comprising the following steps: dense in quality
Degree is 0.1%-3% oxygen scavenger to be added, and maintain the temperature under the conditions of 30-90 DEG C in the alkaline solution of 28-50%, stands 1-6
Hour, hydrogen sulfide reaction is then passed to, and protective gas is added and is protected, it is molten that colorless and transparent NaHS can be obtained
Liquid.
The production method preferred embodiment using paraffinic gases synthesizing colourless sodium hydrosulfide, oxygen scavenger is sulfurous acid
Salt, bisulfites, hydration hydrazine and its derivative.
The production method preferred embodiment using paraffinic gases synthesizing colourless sodium hydrosulfide, the protective gas of addition
For nitrogen or rare gas.
Chemism of the present invention: in sulfur-bearing in paraffinic gases, hydrogen sulfide and liquid alkaline reaction process, list can be oxidized by oxygen into
Matter sulphur, Na2S+ (x-1) S=Na2Sx；Sodium sulfite is much larger than vulcanized sodium to the complexing power of elemental sulfur, therefore sodium sulfite is added
Sodium polysulfide regenerates vulcanized sodium, Na afterwards2Sx+Na2SO3=Na2S+Na2SxO3；To prevent hydrogen sulfide to be oxidized production simple substance
Sulphur, sodium sulfite and sodium hydrogensulfite, which is added, can consume oxygen, 2Na2SO3+O2- → 2Na2SO4；Aniline etc. is added can also be with
Consume oxygen, C6H5NH2+O2- → C6H5NO+H2.
The present invention has the advantages that
Production operation is simple, and raw material is easy to get, easily controllable, and low energy consumption, and colourless NaHS not only can satisfy essence
Refine the needs of the industries such as work, it is thus also avoided that the new impurity of introduction participates in reaction during down-stream enterprise's sintetics, can
The side reaction of downstream product is reduced, product purity is improved and reduces consumption of raw materials.
Specific embodiment
Of the invention is illustrated below in conjunction with preferred embodiment, it should be understood that preferred embodiment described herein
Only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment one
Utilize the production method of paraffinic gases synthesizing colourless NaHS, comprising the following steps: mass concentration be 30%
Alkaline solution in, 0.1% sodium sulfite is added, and maintains the temperature under the conditions of 85 DEG C, stands 4 hours, carries out synthesis sulphur hydrogen
Change sodium, colourless NaHS can be obtained.
Embodiment two
Utilize the production method of paraffinic gases synthesizing colourless NaHS, comprising the following steps: mass concentration be 30%
Alkaline solution in, 0.5% mass concentration of addition is 40% technical grade hydrazine hydrate, and is maintained the temperature under the conditions of 80 DEG C, stands 6
Hour, synthesis NaHS is carried out, colourless NaHS can be obtained.
Embodiment three
Utilize the production method of paraffinic gases synthesizing colourless NaHS, comprising the following steps: be in mass concentration
In 44.8% alkaline solution, 0.12% sodium sulfite is added, and maintain the temperature under the conditions of 85 DEG C, stands 4 hours, closed
At NaHS, colourless NaHS can be obtained.
Example IV
Utilize the production method of paraffinic gases synthesizing colourless NaHS, comprising the following steps: be in mass concentration
In 44.8% alkaline solution, 0.8% 40% technical grade hydrazine hydrate of mass concentration is added, is heated to 80 DEG C, keeps the temperature 6h, carries out
NaHS is synthesized, colourless NaHS can be obtained.
Embodiment five
Utilize the production method of paraffinic gases synthesizing colourless NaHS, comprising the following steps: be in mass concentration
In 40.5% alkaline solution, 0.12% sodium sulfite is added, and maintains the temperature under the conditions of 85 DEG C, stands 4 hours, carries out
NaHS is synthesized, colourless NaHS can be obtained.
Embodiment six
Utilize the production method of paraffinic gases synthesizing colourless NaHS, comprising the following steps: be in mass concentration
In 40.50% alkaline solution, 0.7% mass concentration of addition is 40% technical grade hydrazine hydrate, is heated to 80 DEG C, keeps the temperature 6h, into
Row synthesis NaHS, can be obtained colourless NaHS.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (3)
1. a kind of production method using paraffinic gases synthesizing colourless sodium hydrosulfide, it is characterised in that: the following steps are included:
In the alkaline solution that mass concentration is 28-50%, 0.1%-3% oxygen scavenger is added, and maintain the temperature at 30-90 DEG C of condition
Under, 1-6 hours are stood, hydrogen sulfide reaction is then passed to, and protective gas is added and is protected, colorless and transparent sulphur can be obtained
Sodium hydride solution.
2. utilizing the production method of paraffinic gases synthesizing colourless sodium hydrosulfide according to claim 1, it is characterised in that:
Oxygen scavenger is sulphite, bisulfites, hydration hydrazine and its derivative.
3. utilizing the production method of paraffinic gases synthesizing colourless sodium hydrosulfide according to claim 1, it is characterised in that:
The protective gas of addition is nitrogen or rare gas.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811431049.7A CN109592648A (en) | 2018-11-15 | 2018-11-15 | Utilize the production method of paraffinic gases synthesizing colourless sodium hydrosulfide |
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| CN201811431049.7A CN109592648A (en) | 2018-11-15 | 2018-11-15 | Utilize the production method of paraffinic gases synthesizing colourless sodium hydrosulfide |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392096A (en) * | 2001-06-16 | 2003-01-22 | 郑凌峰 | Purifying method for sodium hydrosulfide |
| CN101186280A (en) * | 2007-11-29 | 2008-05-28 | 青岛奥海科工贸有限公司 | Method for preparing sodium sulfhydrate from hydrogen sulfide tail gas |
| JP2014181138A (en) * | 2013-03-18 | 2014-09-29 | Toray Fine Chemicals Co Ltd | Method for producing sodium hydrogensulfide |
| CN104645811A (en) * | 2015-03-04 | 2015-05-27 | 河北新启元能源技术开发股份有限公司 | Tail gas recovery device and recovery process thereof |
| CN105800567A (en) * | 2016-04-14 | 2016-07-27 | 黄河三角洲京博化工研究院有限公司 | Production method of colorless sodium hydrosulfide solution |
-
2018
- 2018-11-15 CN CN201811431049.7A patent/CN109592648A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392096A (en) * | 2001-06-16 | 2003-01-22 | 郑凌峰 | Purifying method for sodium hydrosulfide |
| CN101186280A (en) * | 2007-11-29 | 2008-05-28 | 青岛奥海科工贸有限公司 | Method for preparing sodium sulfhydrate from hydrogen sulfide tail gas |
| JP2014181138A (en) * | 2013-03-18 | 2014-09-29 | Toray Fine Chemicals Co Ltd | Method for producing sodium hydrogensulfide |
| CN104645811A (en) * | 2015-03-04 | 2015-05-27 | 河北新启元能源技术开发股份有限公司 | Tail gas recovery device and recovery process thereof |
| CN105800567A (en) * | 2016-04-14 | 2016-07-27 | 黄河三角洲京博化工研究院有限公司 | Production method of colorless sodium hydrosulfide solution |
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Application publication date: 20190409 |