CN109988681A - A kind of Degumming method of waste old framework material - Google Patents
A kind of Degumming method of waste old framework material Download PDFInfo
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- CN109988681A CN109988681A CN201910242277.8A CN201910242277A CN109988681A CN 109988681 A CN109988681 A CN 109988681A CN 201910242277 A CN201910242277 A CN 201910242277A CN 109988681 A CN109988681 A CN 109988681A
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/24—Hydrocarbons
- C11D7/247—Hydrocarbons aromatic
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/266—Esters or carbonates
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- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention discloses a kind of Degumming methods of waste old framework material, belong to waste old skeleton recovery technology field.A kind of Degumming method of waste old framework material of the invention, the degumming solvent soaking skeleton formed using the mixture of ethyl acetate and dimethylbenzene, degumming solvent can fully penetrated rubber and metal contact layer to each skeleton, infiltration, dissolution until destroy adhesive surface.It is an object of the invention to overcome the shortcomings of existing waste old framework material inferior separating effect, be difficult to recycle, provide a kind of Degumming method of waste old framework material, highly polar degumming solvent has very big permeability, adsorptivity and dissolubility, the waste old that can be effectively peeled off on skeleton realizes recycling for waste and old skeleton rubber material.
Description
Technical field
The present invention relates to waste old skeleton recovery technology fields, more specifically to a kind of waste old skeleton material
The Degumming method of material.
Background technique
With the high speed development of rubber industry, skeleton rubber material sample and all kinds of rubber products with skeleton are more next
It is more, a large amount of waste old product are produced therefrom, and most of not recoverable easily causes environmental pollution and resource wave
Take.Waste old framework material, which generallys use, burns charing process or the processing of upper lathe, but only cylindrical product could be
Processing removes glue on lathe, and the waste old skeleton product of other irregular shapes are typically only capable to make to burn charing process to remove glue,
The harmful substance and pungent flue dust generated therefrom causes serious environmental pollution, and causes a large amount of wasting of resources.
For deficiency caused by the recycling of existing waste old framework material difficulty, prior art discloses associated solutions,
Such as Chinese Patent Application No.: 2016110692811, the applying date: on November 29th, 2016, a kind of invention and created name: synthesis rubber
The method that glue is detached from skeleton, the program are disclosed a kind of method that synthetic rubber is detached from skeleton, are cooperated using ultrasonic cleaning de-
Sealing ring degumming is implemented in exsolution agent, and cleaning solution is matched by disengaging solvent and water, is detached from solvent and selects liquid alkaline, so that synthesis rubber
Sulphide bond inside glue destroys, synthetic rubber softening, to voluntarily separate from metallic framework.This method utilizes the water of alkali
Solution and neoprene generate chemical reaction, and neoprene molecular structure is destroyed under the action of ultrasonic wave and reaches degumming purpose,
Therefore, which is limited to neoprene or containing chlorine element and on not alkaline-resisting rubber, for numerous in variety
Alkaline-resisting synthetic rubber such as nitrile rubber, EP rubbers, silica gel etc., this method can not implement effective degumming.This method is using ultrasound
Wave cleaning cooperation is detached from the solvent implementation lesser sealing ring degumming of bond area, and solvent can be implemented to seep simultaneously out of circle and outside circle
Layer is destroyed thoroughly, but is directed to the big cake of face glue or solid entire adhesive surface, and solvent penetration is only capable of implementing to see through from outer ring, not only
Adhesive layer is destroyed also and to destroy the surface tension between rubber and skeleton, degumming difficulty greatly increases.
In conclusion how to overcome, existing waste old framework material separating effect is bad, is difficult to recycle and generate
Deficiency, be the technical problem of urgent need to resolve in the prior art.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome existing waste old framework material inferior separating effect, be difficult to recycle not
Foot provides a kind of Degumming method of waste old framework material, and degumming solvent uses the mixture of ethyl acetate and dimethylbenzene,
The two mixing is formed by intensive polar solvent with very big permeability, adsorptivity and dissolubility, can be effectively peeled off on skeleton
Waste old realizes recycling for waste and old skeleton rubber material.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of Degumming method of waste old framework material of the invention, comprising the following steps:
Step 1: it is spare to prepare quantitative degumming solvent；
Step 2: waste and old skeleton rubber product are put into the container of sealing, degumming solvent is added until submerging all skeletons,
It is mobile to mix slowly skeleton；
Step 3: sealed soak certain time, progress solvent degumming at 0~50 DEG C by waste and old skeleton rubber product；
Step 4: opening container and mixing slowly skeleton movement, by degumming recycled solvent after liquid surface static.
As further improvement of the present invention, degumming solvent described in step 1 is using the mixed of ethyl acetate and dimethylbenzene
Close object.
As further improvement of the present invention, degumming solvent described in step 1 includes the raw material of following parts by weight:
70~85 parts of ethyl acetate
30~15 parts of dimethylbenzene.
As further improvement of the present invention, the liquid level of degumming solvent is higher than skeleton in sealing container in step 2
80~160mm.
As further improvement of the present invention, by waste and old skeleton rubber product sealed soak in sealing container in step 3
12~48h carries out ambient solvent degumming.
As further improvement of the present invention, the ambient temperature is 20~30 DEG C.
As further improvement of the present invention, the stirring skeleton time is 10~15min in step 2.
As further improvement of the present invention, the stirring skeleton time is 10~15min in step 4.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, there is following remarkable result:
(1) Degumming method of a kind of waste old framework material of the invention, degumming solvent use ethyl acetate and diformazan
The mixture of benzene, the two mixing, which is formed by intensive polar solvent, has very big permeability, adsorptivity and dissolubility, molten in degumming
When waste and old skeleton rubber product are impregnated in agent, implement the adsorption capacity for constantly permeating, dissolving and destroying gluing agent molecule and metal electron,
By line to face until entire adhesive surface is destroyed, the complete degumming of rubber and metallic framework is realized.
(2) Degumming method of a kind of waste old framework material of the invention, degumming solvent use ethyl acetate and diformazan
The organic mixture of benzene is not chemically reacted with metallic framework, and to metal non-invasi, the dimensional accuracy of skeleton is hardly
It is impacted, to ensure that the recyclable value of waste and old skeleton, realize zero-emission, pollution-free, inexpensive.
(3) Degumming method of a kind of waste old framework material of the invention, degumming solvent submerge all skeletons, and degumming is molten
The liquid level of agent is higher than 80~160mm of skeleton, the degumming solvent in container can be made to remain hydraulic with skeleton, to make
Generate gap between rubber skeleton in container, with guarantee degumming solvent can the fully penetrated rubber to each skeleton connect with metal
Contact layer further increases degumming solvent efficiency, improves degumming efficiency.
(4) Degumming method of a kind of waste old framework material of the invention, can effectively to natural rubber, nitrile rubber,
EP rubbers and the waste and old skeleton product of silica gel isopolarity rubber or non-polar rubber carry out degumming, and the waste and old bone of rubber to degumming
The size shape of frame is no longer limited, using degumming solvent degumming, does not generate kinetic equation loss, is also not take up plant area.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of flow diagram of the Degumming method of waste old framework material of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Therefore, below to the embodiment of the present invention provided in the accompanying drawings
Detailed description be not intended to limit the range of claimed invention, but be merely representative of selected embodiment of the invention.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiments shall fall within the protection scope of the present invention.
To further appreciate that the contents of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
A kind of Degumming method of the waste old framework material of the present embodiment, comprising the following steps:
Step 1: it is spare to prepare quantitative degumming solvent；
Step 2: waste and old skeleton rubber product are put into the container of sealing, degumming solvent is added until submerging all skeletons,
It is mobile to mix slowly skeleton；
Step 3: sealed soak certain time, progress solvent degumming at 0~50 DEG C by waste and old skeleton rubber product；
Step 4: opening container and mixing slowly skeleton movement, by degumming recycled solvent after liquid surface static.
Sealable container, strainer, scrap rubber recycling bin and skeleton recycling bins are got out in the present embodiment first, in step 1
The degumming solvent uses the mixture of ethyl acetate and dimethylbenzene, and specifically, the degumming solvent includes the vinegar of 85 parts by weight
The dimethylbenzene of acetoacetic ester and 15 parts by weight measures each raw material preparation degumming solvent according to above-mentioned mass percent with spare；Then
It is ready to avulse and remove the waste and old skeleton rubber product of standard, waste and old skeleton rubber product are nitrile rubber, waste and old bone in the present embodiment
Frame rubber articles adhesive surface rubber thickness is 0.1mm, and rubber adhesion face size is the rectangular planes of 20 × 100mm.
According to above-mentioned steps, waste and old skeleton rubber product are placed in a sufficiently large container, it is molten that degumming is then added
Agent is until submerge all skeletons, further, in step 2 in sealing container the liquid level of degumming solvent be higher than skeleton 80~
160mm, the liquid level of degumming solvent is higher than skeleton 80mm in the present embodiment, mixes slowly skeleton movement, this implementation
Example mixing time is 10min.The liquid level of degumming solvent is higher by certain altitude than skeleton, can make degumming solvent and bone in container
Frame remains hydraulic, to make to generate gap between the batch rubber skeleton in container, to guarantee that degumming solvent can sufficiently seep
The rubber and metal contact layer for arriving each skeleton thoroughly further increase degumming solvent efficiency, improve degumming efficiency.
In the present embodiment step 3 by waste and old skeleton rubber product at 0~50 DEG C sealed soak certain time, carry out solvent
Degumming, solvent scouring processes are the moisture in degumming solvent adsorption air in order to prevent under air-proof condition, are imitated to degumming
It can have an impact, further, waste and old skeleton rubber product are impregnated 12h by the present embodiment at 20 DEG C, implement ambient solvent degumming,
Cooperate degumming without power, does not generate kinetic equation loss, be also not take up plant area.Airtight lid for container is opened after immersion, is stirred at a slow speed
It is mobile to mix skeleton 10min back skeleton, filters the scouring solution after immersion into container by strainer after degumming solvent liquid level is static
Interior, to remove the pollutants such as scrap rubber particle, recycling degumming liquid is recycled.At this point, nitrile rubber and skeleton are completely de-
Rarefaction is presented in glue, rubber, and metal true qualities are presented in framework metal, and skeleton is not damaged, and skeleton is recovered into skeleton case, will
Scrap rubber is recovered into scrap rubber bucket, to realize that the separation and recovery of rubber and skeleton utilizes, realizes zero emission and pollution, and
Degumming is at low cost.
A kind of Degumming method of waste old framework material of the present embodiment, degumming solvent use ethyl acetate and dimethylbenzene
Mixture, ethyl acetate intramolecular containing electronegativity big oxygen element contains phenyl in dimethylbenzene containing carbon-based and alkoxy,
The two mixing, which is formed by intensive polar solvent, has very big permeability, adsorptivity and dissolubility, waste and old in degumming solvent soaking
When skeleton rubber product, implements the adsorption capacity of continuous infiltration, dissolution up to destroying gluing agent molecule and metal electron, make adhesive
Fracture, by line to face until entire adhesive surface is destroyed, so that rubber and the complete degumming of metal.And degumming solvent uses acetic acid
The organic mixture of ethyl ester and dimethylbenzene is not chemically reacted with metallic framework, to metallic framework non-invasi, the ruler of skeleton
Very little precision is barely affected, to ensure that the recyclable value of waste and old skeleton.
Comparative example 1
A kind of Degumming method of waste old framework material of the present embodiment, step is substantially the same manner as Example 1, different
Place is: the degumming solvent in the present embodiment selects the butanone of 100 parts by weight, after handling according to above-mentioned steps, nitrile rubber
The part degumming between skeleton, degumming effect are bad.
Embodiment 2
A kind of Degumming method of waste old framework material of the present embodiment, step is substantially the same manner as Example 1, different
Place is: degumming solvent described in the present embodiment step 1 uses the mixture of ethyl acetate and dimethylbenzene, specifically, described
Degumming solvent includes the ethyl acetate of 80 parts by weight and the dimethylbenzene of 16 parts by weight, measures each raw material according to above-mentioned mass percent
Degumming solvent is prepared with spare, is then ready for avulsing and removing the waste and old skeleton rubber product of standard, waste and old skeleton in the present embodiment
Rubber articles are EP rubbers, and waste and old skeleton rubber product adhesive surface rubber thickness is 10mm, and rubber adhesion face size is φ 30mm's
Disk.
According to above-mentioned steps, waste and old skeleton rubber product are placed in a sufficiently large container, it is molten that degumming is then added
Agent is until submerge all skeletons, further, in step 2 in sealing container the liquid level of degumming solvent be higher than skeleton 80~
160mm, the liquid level of degumming solvent is higher than skeleton 100mm in the present embodiment, mixes slowly skeleton movement, this implementation
Example mixing time is 11min.The liquid level of degumming solvent is higher by certain altitude than skeleton, can make degumming solvent and bone in container
Frame remains hydraulic, to make to generate gap between the batch rubber skeleton in container, to guarantee that degumming solvent can sufficiently seep
The rubber and metal contact layer for arriving each skeleton thoroughly further increase degumming solvent efficiency, improve degumming efficiency.
In the present embodiment step 3 by waste and old skeleton rubber product at 0~50 DEG C sealed soak certain time, carry out solvent
Waste and old skeleton rubber product are impregnated 20h by degumming, further, the present embodiment at 30 DEG C, implement ambient solvent degumming, without dynamic
Force-fitting degumming does not generate kinetic equation loss, is also not take up plant area.Airtight lid for container is opened after immersion, mixes slowly skeleton
12min back skeleton is mobile, filters the scouring solution after immersion in container by strainer after degumming solvent liquid level is static, to remove
The pollutants such as scrap rubber particle are removed, recycling degumming liquid is recycled.At this point, EP rubbers and skeleton complete degumming, rubber
Rarefaction is presented, metal true qualities are presented in framework metal, and skeleton is not damaged, and skeleton is recovered into skeleton case, and scrap rubber is returned
It takes in scrap rubber bucket, to realize that the separation and recovery of rubber and skeleton utilizes.
A kind of Degumming method of waste old framework material of the present embodiment, effectively implements waste old framework material
Degumming, the waste old and skeleton after degumming are Ke Xunhuanliyong, realize clean and environmental protection degumming.
Comparative example 2
A kind of Degumming method of waste old framework material of the present embodiment, step is substantially the same manner as Example 2, different
Place is: degumming solvent in the present embodiment selects the butanone of 96 parts by weight, after being handled according to above-mentioned steps, EP rubbers with
The non-degumming of skeleton.
Embodiment 3
A kind of Degumming method of waste old framework material of the present embodiment, step is substantially the same manner as Example 2, different
Place is: degumming solvent described in the present embodiment step 1 uses the mixture of ethyl acetate and dimethylbenzene, specifically, described
Degumming solvent includes the ethyl acetate of 75 parts by weight and the dimethylbenzene of 25 parts by weight, measures each raw material according to above-mentioned mass percent
Degumming solvent is prepared with spare, is then ready for avulsing and removing the waste and old skeleton rubber product of standard, waste and old skeleton in the present embodiment
Rubber articles are natural rubber, and waste and old skeleton rubber product adhesive surface rubber thickness is 15mm, and rubber adhesion face size is φ 40mm's
Semicircular planform.
According to above-mentioned steps, waste and old skeleton rubber product are placed in a sufficiently large container, it is molten that degumming is then added
Agent is until submerge all skeletons, further, in step 2 in sealing container the liquid level of degumming solvent be higher than skeleton 80~
160mm, the liquid level of degumming solvent is higher than skeleton 150mm in the present embodiment, mixes slowly skeleton movement, this implementation
Example mixing time is 13min.
In the present embodiment step 3 waste and old skeleton rubber product are impregnated into 30h at 25 DEG C, implements ambient solvent degumming, be not necessarily to
Power cooperates degumming, does not generate kinetic equation loss, is also not take up plant area.Airtight lid for container is opened after immersion, mixes slowly bone
Frame 14min back skeleton is mobile, filters the scouring solution after immersion in container by strainer after degumming solvent liquid level is static, with
The pollutants such as scrap rubber particle are removed, recycling degumming liquid is recycled.At this point, natural rubber and skeleton complete degumming, rubber
Rarefaction is presented in glue, and metal true qualities are presented in framework metal, and skeleton is not damaged, and skeleton is recovered into skeleton case, by scrap rubber
It is recovered into scrap rubber bucket, to realize that the separation and recovery of rubber and skeleton utilizes.
Comparative example 3
A kind of Degumming method of waste old framework material of the present embodiment, step is substantially the same manner as Example 3, different
Place is: the degumming solvent in the present embodiment selects the butanone of 100 parts by weight, after handling according to above-mentioned steps, natural rubber
It is soft, and skeleton part degumming, but still residual fraction rubber on skeleton.
Embodiment 4
A kind of Degumming method of waste old framework material of the present embodiment, step is substantially the same manner as Example 1, different
Place is: degumming solvent described in the present embodiment step 1 uses the mixture of ethyl acetate and dimethylbenzene, specifically, described
Degumming solvent includes the ethyl acetate of 70 parts by weight and the dimethylbenzene of 28 parts by weight, measures each raw material according to above-mentioned mass percent
Degumming solvent is prepared with spare, is then ready for avulsing and removing the waste and old skeleton rubber product of standard, waste and old skeleton in the present embodiment
Rubber articles are silicon rubber, waste and old skeleton rubber product adhesive surface rubber thickness be 20mm, rubber adhesion face size be 25 × 100mm just
Square plane.
According to above-mentioned steps, waste and old skeleton rubber product are placed in a sufficiently large container, it is molten that degumming is then added
Agent is until submerge all skeletons, further, in step 2 in sealing container the liquid level of degumming solvent be higher than skeleton 80~
160mm, the liquid level of degumming solvent is higher than skeleton 160mm in the present embodiment, mixes slowly skeleton movement, this implementation
Example mixing time is 15min.
In the present embodiment step 3 waste and old skeleton rubber product are impregnated into 48h at 10 DEG C, implement solvent degumming, is not necessarily to power
Cooperate degumming, does not generate kinetic equation loss, be also not take up plant area.Airtight lid for container is opened after immersion, mixes slowly skeleton
15min back skeleton is mobile, filters the scouring solution after immersion in container by strainer after degumming solvent liquid level is static, to remove
The pollutants such as scrap rubber particle are removed, recycling degumming liquid is recycled.At this point, silicon rubber is with skeleton, complete degumming, rubber are in
Existing rarefaction, metal true qualities are presented in framework metal, and skeleton is not damaged, and skeleton is recovered into skeleton case, scrap rubber is recycled
Enter in scrap rubber bucket, to realize that the separation and recovery of rubber and skeleton utilizes.
Comparative example 4
A kind of Degumming method of waste old framework material of the present embodiment, step is substantially the same manner as Example 4, different
Place is: the degumming solvent in the present embodiment selects the butanone of 98 parts by weight, after handling according to above-mentioned steps, silicon rubber and bone
Frame degumming, but still have residual rubber on skeleton.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of Degumming method of waste old framework material, it is characterised in that: the following steps are included:
Step 1: it is spare to prepare quantitative degumming solvent；
Step 2: waste and old skeleton rubber product are put into the container of sealing, degumming solvent is added until submerging all skeletons, at a slow speed
It is mobile to stir skeleton；
Step 3: sealed soak certain time, progress solvent degumming at 0~50 DEG C by waste and old skeleton rubber product；
Step 4: opening container and mixing slowly skeleton movement, skeleton, rubber and degumming solvent are returned respectively after liquid surface static
It receives and utilizes.
2. a kind of Degumming method of waste old framework material according to claim 1, it is characterised in that: institute in step 1
State the mixture that degumming solvent uses ethyl acetate and dimethylbenzene.
3. a kind of Degumming method of waste old framework material according to claim 1, it is characterised in that: institute in step 1
State the raw material that degumming solvent includes following parts by weight:
70~85 parts of ethyl acetate
30~15 parts of dimethylbenzene.
4. a kind of Degumming method of waste old framework material according to claim 1, it is characterised in that: close in step 2
The liquid level for sealing degumming solvent in container is higher than 80~160mm of skeleton.
5. a kind of Degumming method of waste old framework material according to claim 1, it is characterised in that: will in step 3
Waste and old skeleton rubber product 12~48h of sealed soak in sealing container carries out ambient solvent degumming.
6. a kind of Degumming method of waste old framework material according to claim 5, it is characterised in that: the room temperature temperature
Degree is 20~30 DEG C.
7. a kind of Degumming method of waste old framework material according to claim 1, it is characterised in that: stirred in step 2
Mixing the skeleton time is 10~15min.
8. a kind of Degumming method of waste old framework material according to claim 1, it is characterised in that: stirred in step 4
Mixing the skeleton time is 10~15min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111484907A (en) * | 2020-06-02 | 2020-08-04 | 河北前进机械厂 | Combined glue removing method for hanging glue creeper tread |
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| CN1325917A (en) * | 2000-05-29 | 2001-12-12 | 刘扬生 | Process for regenerating waste or used rubber |
| CN1900248A (en) * | 2005-07-22 | 2007-01-24 | 东京应化工业株式会社 | Cleaning agent for resin composition |
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Application publication date: 20190709 |