CN101413155A - Method for recycling carbon bisulphide by double condensators in viscose fiber production process - Google Patents
Method for recycling carbon bisulphide by double condensators in viscose fiber production process Download PDFInfo
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- CN101413155A CN101413155A CNA2007101561200A CN200710156120A CN101413155A CN 101413155 A CN101413155 A CN 101413155A CN A2007101561200 A CNA2007101561200 A CN A2007101561200A CN 200710156120 A CN200710156120 A CN 200710156120A CN 101413155 A CN101413155 A CN 101413155A
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- carbon disulfide
- viscose fiber
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- reclaiming method
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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Abstract
The invention relates to a reclaiming method for carbon disulfide in a viscose fiber production process. The reclaiming method adopts double condensers to cool and reclaim the carbon disulfide etiolated by alkali cellulose, the double condensers are arranged on two bathes, and length channels of the two bathes are within 20 to 22 meters. 100, 000 tons of viscose fiber is produced annually and 2,360 tons more of the carbon disulfide can be reclaimed annually, so as to save 11.8 million yuan counted on 5, 000 yuan per ton at present market. At the same time of producing economic effect, the reclaiming method has the advantages that the reclaiming method reduces discharge amount of the carbon disulfide greatly, reduces treatment cost of pollutant, and is more favorable for production and peripheral ecological environment.
Description
Technical field
The present invention relates to the recovery method of the carbon disulfide in a kind of production process of viscose fiber.
Background technology
Viscose belongs to regenerated celulose fibre.It is to be raw material with the native cellulose, makes the soluble cellulose xanthate acid through operations such as alkalization, experienced, yellows, is dissolved in sig water again to make viscose glue, makes through wet spinning.1. the generation of raw material carbon disulfide is present, and domestic Viscose Fiber Plant is made raw material with charcoal and Sulfur mostly, burns oven process outward with coal gas and produces carbon disulfide.Sulfur steam and scorching hot charcoal react under 850～920 ℃ of high temperature and generate carbon disulfide; 2. the preparation of viscose glue stoste is the raw material pulp, through chemical machinery manufacturing procedures such as dipping, squeezing, pulverizing, experienced, yellow, dissolvings, makes viscose glue stoste.Wherein mainly contain cellulose alkalization and two chemical reactions of alkali cellulose yellow; 3. the forming process of spinning viscose.Viscose glue stoste sprays into acid bath by pore, makes regeneration wherein and becomes the continuous strand of solid.The main component of acid bath is a sulfuric acid, comprises materials such as sodium sulphate, zinc sulfate in addition.After viscose solution entered acid bath, the free alkali in the viscose glue was neutralized by acid, and sulfate plays strong dehydration to viscose glue simultaneously, makes it to solidify, decomposite cellulose, and separates out sulfate and carbon disulfide.The post processing post processing of viscose be with fiber through washing, desulfurization, bleaching, pickling, oil, basic working procedure such as drying, make strand pure and meet weaving processing needs.In the production process of viscose fiber, alkali cellulose will add 31%～34% carbon disulfide of the fine weight of first when yellow.In spinning process, there is the carbon disulfide more than 50% to be present in the tow, if these carbon disulfide efflux, be not only waste, and pollute the environment.In the two plasticization drawing processes of bathing, the employing heating means evaporate carbon disulfide and reclaim, and help increasing economic efficiency and protecting environment.In the recovery technology of prior art, adopt single condenser to cool off recovery.So the condensation organic efficiency is low.
Summary of the invention
The invention provides a kind of double-condenser and reclaim the low problem of carbon disulfide organic efficiency that carbon disulfide has solved prior art.
Concrete technical scheme of the present invention is:
Adopt double-condenser to reclaim the method for carbon disulfide in a kind of production process of viscose fiber, adopt double-condenser to cool off the carbon disulfide that reclaims the alkali cellulose yellow, described double-condenser is contained on two baths, 20～22 meters in the length road of described two baths.
Connect a condensation recover in common two baths, fiber can volatilize carbon disulfide at two baths, reclaim carbon disulfide by the condenser condenses that links to each other with two baths, commonly used be used for condensation reclaim carbon disulfide condenser be one, the present invention adopts two condensers in parallel to be connected in parallel on two baths, the carbon disulfide that reclaims in the viscose glue system for twice has successively promoted the rate of recovery of carbon disulfide greatly.
The present invention changes original single condenser into double-condenser, and two bath length that extend simultaneously by original 13 meters to 20～22 meters, preferred 21 meters, make the rate of recovery of carbon disulfide have conventional 40% to be increased to 48%.
Therefore, characteristics such as the rate of recovery height of tool carbon disulfide of the present invention, environmental protection.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail.
Embodiment:,, make viscose glue stoste through chemical machinery manufacturing procedures such as dipping, squeezing, pulverizing, experienced, yellow, dissolvings with the raw material pulp.Wherein mainly contain cellulose alkalization and two chemical reactions of alkali cellulose yellow; Viscose glue stoste sprays into acid bath by pore, makes regeneration wherein and becomes the continuous strand of solid.The main component of acid bath is a sulfuric acid, comprises materials such as sodium sulphate, zinc sulfate in addition.After viscose solution entered acid bath, the free alkali in the viscose glue was neutralized by acid, and sulfate plays strong dehydration to viscose glue simultaneously, makes it to solidify, decomposite cellulose, and separates out sulfate and carbon disulfide.Alkali cellulose will add 31%～34% carbon disulfide of the fine weight of first when yellow.In spinning process, there is the carbon disulfide more than 50% to be present in the tow, if these carbon disulfide efflux, be not only waste, and pollute the environment.In the two plasticization drawing processes of bathing, the employing heating means evaporate carbon disulfide and reclaim, and help increasing economic efficiency and protecting environment.Present embodiment adopts the condenser cooling of two parallel connections to reclaim the carbon disulfide that is evaporated in two baths, increased the length to 21 meter of two baths, two condensers are set respectively in its front-end and back-end, the rate of recovery of its carbon disulfide reaches 48%, far above common 40%, it has been generally acknowledged that cellulose condenser in two processes of bathing can reach the limit of regaining carbon disulfide, adopt multistage how many effects of also not bringing into play, and the present invention has changed this situation after the length that has increased by two baths, promptly extend behind two baths at its two sections parallel condensing devices, the rate of recovery of carbon disulfide reaches 50%, and this may be because the cause that the elimination factor of carbon disulfide increases after the length of increase by two baths.Present embodiment is produced 100000 tons of viscoses per year, can reclaim 2360 tons of carbon disulfide in 1 year more, with existing 5000 yuan of/ton calculating in market, can save 11,800,000 yuan.When producing economic benefit, reduce the discharge capacity of carbon disulfide greatly, reduce the disposal cost of pollutant, more help producing and ecological environment on every side.
Claims (2)
1, adopt double-condenser to reclaim the method for carbon disulfide in a kind of production process of viscose fiber, adopt double-condenser to cool off the carbon disulfide that reclaims the alkali cellulose yellow, described double-condenser is contained on two baths, 20～22 meters in the length road of described two baths.
2, adopt double-condenser to reclaim the method for carbon disulfide in the production process of viscose fiber according to claim 1, it is characterized in that: 21 meters in the length road of described two baths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101561200A CN101413155A (en) | 2007-10-16 | 2007-10-16 | Method for recycling carbon bisulphide by double condensators in viscose fiber production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101561200A CN101413155A (en) | 2007-10-16 | 2007-10-16 | Method for recycling carbon bisulphide by double condensators in viscose fiber production process |
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| Publication Number | Publication Date |
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| CN101413155A true CN101413155A (en) | 2009-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007101561200A Pending CN101413155A (en) | 2007-10-16 | 2007-10-16 | Method for recycling carbon bisulphide by double condensators in viscose fiber production process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603066A (en) * | 2013-12-02 | 2014-02-26 | 宜宾丝丽雅股份有限公司 | Method for producing heavy-denier mucilage glue flat yarn |
| CN103614792A (en) * | 2013-12-02 | 2014-03-05 | 宜宾丝丽雅股份有限公司 | Technology used for manufacturing mucilage glue coarse denier flat yarns |
| CN110885084A (en) * | 2019-12-11 | 2020-03-17 | 宜宾丝丽雅股份有限公司 | Condensation recycling method and system for carbon disulfide in viscose fiber production |
-
2007
- 2007-10-16 CN CNA2007101561200A patent/CN101413155A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603066A (en) * | 2013-12-02 | 2014-02-26 | 宜宾丝丽雅股份有限公司 | Method for producing heavy-denier mucilage glue flat yarn |
| CN103614792A (en) * | 2013-12-02 | 2014-03-05 | 宜宾丝丽雅股份有限公司 | Technology used for manufacturing mucilage glue coarse denier flat yarns |
| CN103614792B (en) * | 2013-12-02 | 2016-02-10 | 宜宾丝丽雅股份有限公司 | A kind of technique for the manufacture of viscose coarse denier flat filament |
| CN103603066B (en) * | 2013-12-02 | 2016-04-06 | 宜宾丝丽雅股份有限公司 | For the production of the method for thick dawn viscose glue flat filament |
| CN110885084A (en) * | 2019-12-11 | 2020-03-17 | 宜宾丝丽雅股份有限公司 | Condensation recycling method and system for carbon disulfide in viscose fiber production |
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Application publication date: 20090422 |