CN106540472A - The condensing method of rubber polymer condensing field and coacervation device and rubber polymer solution - Google Patents
The condensing method of rubber polymer condensing field and coacervation device and rubber polymer solution Download PDFInfo
- Publication number
- CN106540472A CN106540472A CN201510607689.9A CN201510607689A CN106540472A CN 106540472 A CN106540472 A CN 106540472A CN 201510607689 A CN201510607689 A CN 201510607689A CN 106540472 A CN106540472 A CN 106540472A
- Authority
- CN
- China
- Prior art keywords
- condensing field
- water
- condensing
- steam
- field
- 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.)
- Granted
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The invention discloses a kind of rubber polymer condensing field, solvent evaporation that the condensing field is used in rubber polymer solution removing is to obtain the micelle water containing rubber polymer, the condensing field includes：Rubber polymer solution feed unit, for the mixture of rubber polymer solution and water is imported in the condensing field；Steam feed unit, for steam being imported in the condensing field to be contacted with the mixture；Water separative element, for the part water in the material after the contact is separated.Present invention also offers the coacervation device of the rubber polymer solution using above-mentioned condensing field.And the present invention also provides the condensing method of the rubber polymer solution using above-mentioned coacervation device.When carrying out the cohesion of polymer solution by the condensing field for adopting the present invention to provide, condensing field itself can realize concentration, extend the time of staying of the micelle water in condensing field, strengthen the solvent removal effect of polymer solution.
Description
Technical field
The present invention relates to rubber polymer condensing field and coacervation device and rubber polymer solution is solidifying
Poly- method.
Background technology
The production process of common rubber polymer generally includes polymerized unit, cohesion unit, post processing
Deng unit.In polymerized unit, one or more monomer is issued with catalyst action in a solvent
Raw polyreaction obtains polymer solution；In cohesion unit, use steam and water gather by elutriation method
Close the solvent flash separation in the polymer solution obtained by unit；The aqueous polymers that cohesion unit is obtained are again
Polymeric articles are obtained through the last handling process such as dry.The process of elutriation method cohesion is in mechanical agitation
Under, micelle is dispersed in water in droplet-like, with steam is passed directly into, release latent by some vapor condensation
Heating water, heat is by Water transport to micelle for heat.Now, in droplet-like glue solvent, monomer etc.
Heated portion gasifies, and solvent gas are taken out of condensing field by vapor, reach the purpose of desolvation.Solvent
Rubber after steaming is in granular form precipitation, is dispersed in water.
, typically using double kettle cohesions or the cohesion of three kettles, many kettle cohesion operations can for the coacervation process of prior art
Improve the effect of solvent removal.And another affects the influence factor of solvent removal effect and rubber quality
Water-cement ratio, that is, in first kettle water and glue ratio, water-cement ratio is too small, is on the one hand likely to result in glue
Granule density is excessive, so that micelle collision opportunity increases, easily forms bulk, causes condensing field, pump or pipe
Road is blocked；On the other hand it is as micelle becomes big, unfavorable to the solvent removal in micelle.3rd impact is molten
The factor of agent removal effect is the time of staying, and the time of staying of the material in condensing field is long, and solvent is just removed
It is cleaner, therefore just employ in some technologies and increase the measures such as concentration device equipment and extend stopping for three kettles
The time is stayed, increases the removal effect of solvent.
CN102382214A discloses a kind of cohesion process of polymerization product production, and the invention is by three kettles
The differential pressure Technology that combines with micelle concentration technology of cohesion, the second condensing field and the 3rd condensing field it
Between concentration device is installed concentration is carried out to micelle water, define energy-saving type SBS cohesion new technology, can have
Effect is alleviated energy-conservation and lowers consumption this to contradiction, reduces the purpose of solvent consumption and steam consumption.Change technology
Shortcoming the 3rd condensing field that has been a concentration concentration, the effect of concentration is limited, also needs newly-increased concentration in addition
Device could be realized.
The content of the invention
It is that the need for overcoming existing polymer agglomerates technique to exist adopt concentration device that the purpose of the present invention is
A kind of defect of concentration, there is provided rubber polymer condensing field and coacervation device that itself can realize concentration
And the condensing method of rubber polymer solution.
To achieve these goals, the present invention provides a kind of rubber polymer condensing field, and the condensing field is used
Solvent evaporation in rubber polymer solution is removed to obtain the micelle water containing rubber polymer, and this coagulates
Poly- kettle includes：Rubber polymer solution feed unit, for by the mixture of rubber polymer solution and water
Import in the condensing field；Steam feed unit, for by steam import in the condensing field with
The mixture is contacted；Water separative element, for by the part water in the material after the contact with
The micelle water containing rubber polymer is separated.
The present invention also provides a kind of coacervation device of rubber polymer solution, and the coacervation device includes what is connected
The condensing field of more than 2, wherein, the first condensing field is for by the mixture of rubber polymer solution and water
The first contact is carried out with steam so that solvent evaporation removing, condensing field thereafter is for by previous cohesion
After contacting in kettle, the micelle water of gained carries out solvent evaporation removing again；Wherein, the coacervation device includes
At least one of some condensing fields are above-mentioned condensing field.
The present invention also provides a kind of condensing method of rubber polymer solution, and the method is above-mentioned solidifying by 3
Carry out in the coacervation device that poly- kettle is in series, the method includes：
(1) in the first condensing field, the mixture of rubber polymer solution and the first water is gathered by rubber
Polymer solution feed unit is added and carries out the first contact with the first steam added by steam feed unit,
Part water in the material after water separative element is contacted first is separated and is gone out, obtain isolating the
Two water and the first micelle water after the water of part is separated；
(2) in the second condensing field, by the first micelle water by rubber polymer solution feed unit
Add and the second contact is carried out with the second steam added by steam feed unit, will by water separative element
The part water in material after second contact is separated and is gone out, and is obtained the 3rd water isolated and has been separated part
The second micelle water after water；
(3) in the 3rd condensing field, by the second micelle water by rubber polymer solution feed unit
Add, part water is separated by water separative element and gone out, obtain the 4th water isolated and separated portion
The 3rd micelle water divided after water.
When carrying out the cohesion of polymer solution by the condensing field for adopting the present invention to provide, condensing field itself can
To realize the effect of concentration, such that it is able to, in the case of need not be using concentration device, extend micelle water solidifying
The time of staying in poly- kettle, strengthen the solvent removal effect of polymer solution.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute the part of description, with
Detailed description below is used for explaining the present invention together, but is not construed as limiting the invention.
In accompanying drawing：
Fig. 1 is a kind of coacervation device of the polymer solution of embodiment of the invention.
Fig. 2 is a kind of front view of the condensing field of the polymer solution of embodiment of the invention.
Fig. 3 is a kind of top view of the condensing field of the polymer solution of embodiment of the invention.
Fig. 4 is the coacervation device that the method for comparative example 1 is adopted.
Description of reference numerals
1 --- agitator；2 --- glue spraying pipe；3 --- the annular feed pipe with steam nozzle；
4 --- skimming baffle；5 --- micelle outlet；6 --- outlet；7 --- water inlet；
8 --- steam (vapor) outlet；M1 --- blender；F1 --- the first condensing field；
F2 --- the second condensing field；F3 --- the 3rd condensing field；P1 --- the first micelle water pump；
P2 --- the first water pump；P3 --- the second micelle water pump；P4 --- the second water pump；
P5 --- the 3rd micelle water pump；P6 --- the 3rd water pump；J1 --- steam jet ejector；
S1 --- hot water；S2 --- rubber polymer solution；S3 --- low-pressure steam；
S4 --- micelle water goes post processing；S5 --- steam goes condensation to reclaim；S6 --- steam blowing.
Specific embodiment
Hereinafter the specific embodiment of the present invention is described in detail.It should be appreciated that this place is retouched
The specific embodiment stated is merely to illustrate and explains the present invention, is not limited to the present invention.
In the present invention, the time of staying refer to that process stream is experienced from import to outlet in the equipment
Average time, be commonly defined as τ (time of staying)=V (equipment dischargeable capacity)/Q (equipment importation volumes
Flow).
The present invention provides a kind of rubber polymer condensing field, and the condensing field is used in rubber polymer solution
Solvent evaporation remove to obtain the micelle water containing rubber polymer, the condensing field includes：
Rubber polymer solution feed unit, for the mixture of rubber polymer solution and water is imported to
In the condensing field；
Steam feed unit, for steam being imported in the condensing field to be connect with the mixture
Touch；
Water separative element, for the part water in the material after the contact is separated.
According to the present invention, the rubber polymer solution feed unit can be conventionally used for rubber for this area
The mixture of xanthan polymer solution and water imports to the part in the condensing field, such as such as Fig. 1 and Fig. 2
Shown, can be using the glue spraying pipe 2 stretched on condensing field wall in kettle, i.e., described rubber polymer
Solution feed unit has glue spraying pipe 2, and which is stretched in kettle on condensing field wall obliquely.When with glue spraying
When the form of pipe 2 is as the rubber polymer solution feed unit, it is preferable that glue spraying pipe 2 is obliquely
Stretch in kettle, more preferably so that glue spraying pipe 2 is 45-60 degree with the angle of the wall of condensing field.
According to the present invention, the condensing field that the present invention is provided it is different with the condensing field of prior art maximum
In：The condensing field is provided with water separative element, so that the part moisture in the material after the contact
From and go out, to obtain having separated the micelle water containing rubber polymer described in the water of part and separate
Part water, so as to realize dense to micelle water extraction purpose in condensing field.Preferably, as Figure 1-3
, the water separative element is formed by skimming baffle 4, and the skimming baffle 4 is provided with through hole, and
Below rubber polymer solution feed unit, the through hole being provided with the skimming baffle 4 causes stream
The part water contained in entering the material after the contact of the condensing field bottom is separated and is gone out.More preferably
Ground, is provided with outlet 6 on condensing field kettle wall in the case where the skimming baffle 4 is covered, and separates gear from described
The water that the through hole being provided with plate 4 is separated and gone out, is expelled to outside condensing field by outlet 6.
According to the present invention, the through hole on the skimming baffle 4 for micelle and part water are separated,
Therefore, the size of the through hole on the skimming baffle 4 can be selected (concrete according to the size of micelle
To pass water through, and micelle can not pass through), can for example be 2-10mm.
According to the present invention, the skimming baffle 4 can adopt various settings, as long as above-mentioned carrying can be realized
Dense effect, the edge of such as skimming baffle 4 are engaged with the wall of the condensing field completely, from
And so that the wall and the skimming baffle 4 of the condensing field surround cavity, (cavity refers to only described contact
The cavity that the part water contained in material afterwards is entered, and to be then condensing field be supplied to micelle for the outside of cavity
The passage of water desolvation), and the outlet 6 is then located on the wall of the condensing field that the cavity is located；
Wherein, definition towards the skimming baffle 4 of the cavity side be the skimming baffle 4 outside,
And dorsad the cavity and the side towards micelle water are the inner side of the skimming baffle 4.
Can be the less independent plate of area as the skimming baffle 4 of water separative element, so can be
The cavity that more than one is surrounded by the wall of skimming baffle 4 and the condensing field is formed at the bottom of the condensing field
(outlet is both provided with each cavity in this case), as long as the sky of the condensing field for staying
Between be sufficient so that separate part water after micelle water energy enough discharged i.e. by the micelle outlet 5 of bottom
Can.Preferably, as shown in Figures 2 and 3, the side wall of the upper edge of the skimming baffle 4 and condensing field
Engagement, the lower edge of the skimming baffle 4 engaged with the bottom of condensing field, so as to by the condensing field
Lower isolation goes out the cavity that a circle is surrounded by the side wall of the skimming baffle 4 and condensing field, is passed through with accommodating
The water that the through hole of the skimming baffle 4 is separated and gone out.Like this, the skimming baffle 4 forms one
Whole face, and a complete cavity is surrounded with the wall of condensing field.Such skimming baffle 4 can be in cohesion
Drum structure is formed in kettle, wherein, the face of the upper edge engaged with condensing field side wall to drum circumference can be with
It is plane, or inclined plane obliquely, preferably with the gradient as glue spraying pipe 2, i.e. institute
Skimming baffle 4 is stated by the first periphery (face for forming tubbiness i.e. in drum structure) and the second periphery
(edge is engaged with condensing field side wall, and another side is along the face engaged with the upper edge of the first periphery) structure
Into, wherein, the first periphery is parallel with the wall of the condensing field, second periphery be one end with
Upper peripheral edge (upper edge of the first periphery) combination of the first periphery, the other end and the condensing field
The inclined plane that wall is combined, and the inclined plane is with the gradient as glue spraying pipe 2.Preferably,
The ratio for being formed the diameter and condensing field internal diameter of drum structure by skimming baffle 4 in condensing field is 0.4-0.9：
1, it can be understood as the lower edge of skimming baffle 4 is connect with bottom at the point of the 0.1-0.6 of condensing field internal diameter
Close.
According to the present invention, when the height of the condensing field is 3000-10000mm, it is preferable that glue spraying
It is at 1200-2500mm (vertical height i.e. from condensing field bottom up), then to divide that pipe 2 is located at height
Away from the 50-150mm that the upper edge of baffle plate 4 is located at below glue spraying pipe 2.
The size of the cavity surrounded according to the present invention, the skimming baffle 4 can be according to the effect of required concentration
Fruit is selected, it is preferable that the cavity surrounded by the side wall of the skimming baffle 4 and condensing field accounts for cohesion
3-20 volumes % in the space of kettle.
According to the present invention, the steam feed unit provides steam for condensing field, and using the steam as solidifying
The thermal source of the reaction in poly- kettle, therefore, there is no particular limitation to steam feed unit for the present invention, can be with
Adopt the device that steam is provided for condensing field that this area is conventional, it is preferable that the steam feed unit is
Annular feed pipe 3 with steam nozzle, and the annular feed pipe 3 is around the interior of the skimming baffle 4
Side and the lower edge setting near skimming baffle 4.The steam for so being provided by steam feed unit is not only
Solvent removal for micelle water can be provided, can be also used for purging the upper through hole of the skimming baffle 4
To clear up to which, blocking and kiss-coating are prevented.
According to the present invention, the big I of the steam nozzle on the annular feed pipe 3 with steam nozzle
Think the conventional selection of this area, such as the steam spray on the described annular feed pipe 3 with steam nozzle
The aperture of mouth is 2-4mm.
According to the present invention, as shown in Figures 2 and 3, the condensing field can also have this area routine
Various configurations, such as with agitator 1, micelle outlet 5 and steam (vapor) outlet 8 (in Fig. 2 and Fig. 3
It is not shown, have in Fig. 1 but unmarked), wherein, the mixture of rubber polymer solution and water is by spray
Sebific duct 2 is injected in condensing field, and (can have single or multiple lift impeller, for example in agitator 1
Layer 2-3 impeller) under the stirring that provides dispersion form micelle water, and with the annular charging with steam nozzle
The steam contact that pipe 3 sprays so that solvent gasification is as steam is carried over and passes through to steam in rubber polymer
Vapor outlet 8 is discharged.
Present invention also offers a kind of coacervation device of rubber polymer solution, the coacervation device includes series connection
The condensing field of more than 2, wherein, the first condensing field F1 is for by rubber polymer solution and water
Mixture and steam carry out the first contact so that solvent evaporation removing, and condensing field thereafter is used for will be previous
After contacting in individual condensing field, the micelle water of gained carries out solvent evaporation removing again；Wherein, the cohesion is filled
At least one of condensing field for including is put for above-mentioned condensing field.
Preferably, the coacervation device includes the condensing field of 2-10 for connecting, and more preferably 2-4 is individual, more
More preferably 3, the more preferably all condensing fields in the coacervation device are described above
Condensing field.Under the condensing field that the coacervation device includes 3 series connection, the first kettle of definition cohesion is first
Condensing field F1, the condensing field followed by connected are the second condensing field F2, after following the second condensing field F2 closely
The condensing field of series connection for the 3rd condensing field F3, wherein, the first condensing field F1 is for rubber is gathered
The mixture of polymer solution and water and steam carry out the first contact, and the second condensing field F2 is for by institute
Stating the micelle water obtained by the first contact carries out the second contact with steam.
Preferably, in the first condensing field F1, the second condensing field F2 and the 3rd condensing field F3 all
For condensing field described above.It will be appreciated by those skilled in the art that the first condensing field F1,
The condensing field described above that second condensing field F2 and the 3rd condensing field F3 are can be according to each kettle
Respective effect and the characteristics of there is difference, but the function of entirety condensing field as described above is basic
It is identical.
According to the present invention, the first condensing field F1 also referred to as condenses first kettle, its be mainly used for by
The mixture of rubber polymer solution and water carries out the first contact with steam.Preferably, the coacervation device
Blender M1 is also included, is mixed rubber polymer solution and water to be obtained by the mixture M 1
Their mixture, the blender M1 are entered with the rubber polymer solution of the first condensing field F1
Material unit (can be glue spraying pipe, the position that glue spraying pipe 2 as shown in Figure 2 is located) is connected, so as to
Gained mixture can be added to the first condensing field F1 by rubber polymer solution feed unit
In.
According to the present invention, (micelle as shown in Figure 2 goes out the micelle outlet of the first condensing field F1
The position that the mouth of a river 5 is located) (can with the rubber polymer solution feed unit of the second condensing field F2
Think glue spraying pipe, the position that glue spraying pipe 2 as shown in Figure 2 is located) connection so that first cohesion
The micelle water that kettle F1 flows out is entered into by the rubber polymer solution feed unit of the second condensing field F2
In the second condensing field F2.Preferably, the micelle outlet in the first condensing field F1 (is such as schemed
The position that micelle outlet 5 shown in 2 is located) it is molten with the rubber polymer of the second condensing field F2
The first micelle water pump P 1 is provided with the pipeline of liquid feed unit connection, by the first micelle water pump P 1
The flow that micelle water flows into the second condensing field F2 can be controlled.
According to the present invention, (micelle as shown in Figure 2 goes out the micelle outlet of the second condensing field F2
The position that the mouth of a river 5 is located) connect with the rubber polymer solution feed unit of the 3rd condensing field F3,
So that the micelle water that the second condensing field F2 flows out is molten by the rubber polymer of the 3rd condensing field F3
Liquid feed unit (can be glue spraying pipe, the position that glue spraying pipe 2 as shown in Figure 2 is located) enters into institute
State in the 3rd condensing field F3.Preferably, the second condensing field F2 micelle outlet (such as Fig. 2
The position that shown micelle outlet 5 is located) rubber polymer solution with the 3rd condensing field F3
The second micelle water pump P 3 is provided with the pipeline of feed unit connection, can by the second micelle water pump P 3
To control the flow that micelle water flows into the 3rd condensing field F3.
In accordance with the present invention it is preferred that, the top of the first condensing field F1 also includes water inlet 7, leads to
Cross the water inlet 7 to cause by the first condensing field F1, the second condensing field F2 and the 3rd condensing field F3
The water discharged of outlet (position that outlet 6 as shown in Figure 2 is located) enter into described first and coagulate
Recycling in poly- kettle F1.
According to the present invention, in order that being coagulated by the first condensing field F1, the second condensing field F2 and the 3rd
The water that the outlet (position that outlet 6 as shown in Figure 2 is located) of poly- kettle F3 is discharged enters into institute
State in the first condensing field F1, by the first condensing field F1, the second condensing field F2 and the 3rd condensing field
The water inlet 7 that the outlet of F3 is included with the top of the first condensing field F1 is connected, and is being incited somebody to action respectively
Water is excluded from the outlet of the first condensing field F1, the second condensing field F2 and the 3rd condensing field F3
The first water pump P 1, the second water pump P 4 and the 3rd water pump P 6 are provided with pipeline.
According to the present invention, the top of the second condensing field F2 and the 3rd condensing field F3 is also arranged including steam
Outlet 8, the steam outlet 8 is connected with the steam feed device 3 of the first condensing field F1,
So that the steam that the top of the second condensing field F2 and the 3rd condensing field F3 is discharged passes through described first
The steam feed unit of condensing field F1 (enter by the annular with steam nozzle shown in preferably Fig. 2 and 3
3) expects pipe is entered in the first condensing field F1 to recycle.
Wherein, in order that the steam of the top discharge of the second condensing field F2 and the 3rd condensing field F3
Entered in the first condensing field F1 by the steam feed unit of the first condensing field F1, it is described
The steam outlet 8 at the top of the second condensing field F2 and the 3rd condensing field F3 and first condensing field
The steam feed unit connection of F1, in order to promote by the second condensing field F2 and the 3rd condensing field
The steam that the top of F3 is discharged is injected in the first condensing field F1, in the second condensing field F2
With the steam feed list of the steam outlet 8 at the top of the 3rd condensing field F3 and the first condensing field F1
Steam jet ejector is provided with the pipeline of unit's connection, particularly in the steam at the top of the 3rd condensing field F3
Steam spray is provided with the pipeline that outlet 8 is connected with the steam feed unit of the first condensing field F1
Emitter J1, so can preferably overcome the 3rd condensing field F3 operating pressures relatively low and be unfavorable for that steam enters
Enter to the problem in the first condensing field F1.
According to the present invention, the top of the first condensing field F1 also includes steam outlet (such as Fig. 1
In the second condensing field F2 and the 3rd condensing field F3 top steam outlet 8 be located position
Put), to discharge the steam for carrying solvent.
Preferably, in the coacervation device that the present invention is provided, the steam feed unit normally can grasped
Steam is provided for each condensing field under the conditions of work, wherein, steam is mainly entered by the second condensing field bottom,
The steam of the first condensing field then comes from the steam that two kettles and three kettles are returned, the steam at the 3rd condensing field bottom
The major function of feed pipe is to purge and cleaning effect.
Present invention also offers a kind of condensing method of rubber polymer solution, the method is above-mentioned by 3
Carry out in the coacervation device that condensing field is in series, the method includes：
(1) in the first condensing field F1, by the mixture of rubber polymer solution and the first water by rubber
Feed of polymer solution unit is added and carries out the first contact with the first steam returned by two kettles and three kettles,
Part water in the material after water separative element is contacted first is separated and is gone out, obtain isolating the
Two water and the first micelle water after the water of part is separated；
(2) in the second condensing field F2, the first micelle water is entered into material list by rubber polymer solution
Unit adds and carries out the second contact with the second steam added by steam feed unit, by water separative element
The part water in material after second is contacted is separated and is gone out, and is obtained the 3rd water isolated and has been separated portion
The the second micelle water divided after water；
(3) in the 3rd condensing field F3, the second micelle water is entered into material list by rubber polymer solution
Unit adds, and separates part water by water separative element and goes out, and obtains the 4th water and the separation isolated
The 3rd micelle water after the water of part.
The coacervation device is as described above, will not be described here.Those skilled in the art should manage
Solution, the condition setting of the coacervation device can be entered according to each condition for the coacervation device being outlined above
Row is arranged, and the present invention will not be described here.
According to the present invention, wherein, each step not only includes the process of respective condensing field desolvation,
The process of the part water in the material after contact is removed in respective condensing field is also all included, so may be used
To improve the concentration of micelle water, the purpose of concentration is reached, the micelle water after such concentration is into subsequent
During step, it is possible to obtain the longer time of staying.Material is after the extended residence time in condensing field, molten
Agent removal effect more preferably, can so avoid solvent from remaining more in micelle and bring post processing list into
Unit, causes the solvent removal load in subsequent processing units larger, and a large amount of solvents of removing are difficult to
Reclaim.
According to the present invention, the rubber polymer solution can be by the conventional rubber polymer in this area
Preparation process is obtained, and the rubber polymer solution is preferably conjugated diene homopolymers solution, conjugation two
The random copolymer solution and conjugated diene of alkene and vinyl-arene and the block copolymerization of vinyl-arene
Thing (such as styrene-isoprene block polymer, Styrene-Butadiene block polymer etc.) solution
In one or more.It is alkane, cycloalkanes usually as the solvent used by such rubber polymer solution
One or more in hydrocarbon and aromatic hydrocarbons.It is highly preferred that in the rubber polymer solution polymer content
For 5-15 weight %.
According to the present invention, to the rubber polymer solution S2 and the mixed proportion of the mixture of the first water
It is not particularly limited, the ratio mixing that this area can be adopted conventional, it is preferable that the rubber gathers
In the mixture of polymer solution and the first water, in the unit interval, the first water and rubber polymer solution feed
Mass ratio be 2-14:1.First water be hot water S1, preferably 70-95 DEG C of hot water.
According to the present invention, the consumption of the mixture and steam is not particularly limited, can be with ability
The conventional consumption in domain, but the method for the present invention can also have the effect for reducing material consumption and energy consumption, realize
This effect it is a kind of be just preferred embodiment by the second condensing field F2 discharge steam and
The steam that 3rd condensing field F3 is discharged is returned in the first condensing field F1, particularly by the described second cohesion
The steam that the steam and the 3rd condensing field F3 that kettle F2 is discharged is discharged is used as the whole in the first condensing field F1
The first steam use.And in the method for the invention, the micelle water of the 3rd condensing field has reached enough
Concentrated effect and heats, promote polymer molten with the sufficiently long time of staying and enough heat
Solvent in liquid is further removed, and without the need for bottom purge steam removing solvent, and is only needed
A small amount of steam being cleaned or be disturbed the effect of micelle water to skimming baffle, that is to say, that this
Substantially all of steam is preferably entered from the steam feed unit of the second condensing field by the method for invention, the
The steam of two condensing field consumption is regarded as the steam total amount consumed by the condensing method of the present invention, at this
In the case of sample, it is preferable that the mass flow ratio of the mixture and the second steam is 8-80：1.
Under ratio as meeting, the mass flow of the mixture and the second steam can be according to different technique
Scale carries out appropriate selection, such as the mass flow of described mixture is 10000-150000kg/h, the
The mass flow of two steam is 1000-8300kg/h.
, according to the invention it is preferred in the case of, the operating condition of the first condensing field F1 includes：Gauge pressure
For 0.003-0.03MPa, temperature is 83-92 DEG C.Wherein, it is described first contact time refer to rubber
The mixture of polymer solution and the first water relative retention time in the first condensing field F1, also referred to as stops
The time is stayed, wherein, the time of staying of first contact can be 8-60min, first contact
The time of staying is preferably 20-60min.
In accordance with the present invention it is preferred that, the second water that step (1) is isolated, step (2) are isolated
The 3rd water and the 4th water isolated of step (3) return in the first condensing field F1 so that described
The mixture and the first steam of polymer solution and the first hot water carries out presence of first contact in these water
Under carry out.That is, the method for the present invention also includes the second water, the step (2) for isolating step (1)
The 4th water that the 3rd water and step (3) isolated is isolated is added to the condensing field that step (1) is located
In, so as to participate in the first contact.It should be appreciated that detached water is all after above-mentioned each contact
Hot water with higher temperature, so by high-temperature-hot-water Returning utilization, can reduce the consumption of steam, from
And the steam and the 3rd condensing field that the second condensing field F2 is discharged can be directly utilized as above
The steam that F3 is discharged is used as the first steam.
According to the present invention, the second water that the step (1) is isolated and separated after the water of part the
One micelle water can be to adjust in the stop of step (2) from the speed that the condensing field which is located is extracted out
Between, it is preferable that the second water that the step (1) is isolated and the first micelle after having separated part water
Water is 1 from the mass flow ratio that its condensing field being located is extracted out：7-10.Under the ratio as meeting,
The second water that the step (1) is isolated is located from which with the first micelle water separated after the water of part
The mass flow that condensing field is extracted out can be selected according to different process scales.
According to the present invention, in step (2), second steam is by the outside low-pressure steam S3 for arranging
Offer source provides, and the present invention is not particularly limited to this.Under preferable case, the second condensing field F2
Operating condition include：Gauge pressure is 0.06-0.09MPa, and temperature is 103-110 DEG C.Wherein, described
The time of staying of two contacts can be 15-80min, and the time of staying of second contact is preferably
30-75min。
According to the present invention, the 3rd water that the step (2) is isolated and separated after the water of part the
Two micelle water can be to adjust in the stop of step (3) from the speed that the condensing field which is located is extracted out
Between, it is preferable that the 3rd water that the step (2) is isolated and the second micelle after having separated part water
Water is 1 from the mass flow ratio that its condensing field being located is extracted out：5-10.Under the ratio as meeting,
The 3rd water that the step (2) is isolated is located from which with the second micelle water separated after the water of part
The mass flow that condensing field is extracted out can be selected according to different process scales.
As described above, in the 3rd condensing field F3, due to have passed through the first and second condensing fields
Concentration and the contact with steam so that had into the micelle water in the 3rd condensing field F3 higher
Temperature and higher concentration, can have enough time of staying, can provide being passed through steam
In the case of heat and carrying, itself is further removed using the pressure change of waste heat and the 3rd condensing field
Solvent.Certainly, the 3rd condensing field F3 also has steam feed unit, but the steam feed unit is carried
For the effect that mainly plays of a small amount of steam be purging cleaning, prevent the effect that micelle blocks.According to this
Invention, under preferable case, the operation of the 3rd condensing field F3 includes：Gauge pressure be -0.001MPa extremely
0.005MPa, temperature are 93-100 DEG C.Wherein, the time of staying of the 3rd condensing field F3 can be
15-80min, the time of staying of the 3rd condensing field F3 are preferably 30-75min.
According to the present invention, the 4th water that the step (3) is isolated and separated after the water of part the
The speed that condensing field that three micelle water are located from which is extracted out can be to adjust the process of whole coacervation process
Speed, wherein, the 3rd micelle water just can be entered in the conventional post-processing step in this area after extracting out, cohesion
Process be can be regarded as and be completed.Preferably, the step (3) is isolated the 4th water and after having separated part water
The mass flow ratio extracted out of condensing field for being located from which of the 3rd micelle water be 1：5-15.Meeting so
Ratio under, the 4th water that the step (3) is isolated and the 3rd micelle water after having separated part water
The mass flow extracted out from its condensing field being located can be selected according to different process scales.
According to the present invention, the first condensing field F1, the second condensing field F2 and the 3rd condensing field F3 are also
With agitating device so that the material in three condensing fields can also carry out solvent under agitation
Remove, the speed stirred in the first condensing field F1 can turn/min for 50-150, and described second coagulates
The speed stirred in poly- kettle F2 can turn/min, the speed stirred in the 3rd condensing field F3 for 50-120
Rate can turn/min for 50-120.
Can realize carrying polymer solution with itself by adopting the coacervation device of the condensing field of the present invention
It is dense, extend the time of staying of micelle water such that it is able to more Shangdi, strengthen the removing of solvent, reduce
Material consumption and energy consumption.In terms of environmental protection, the enforcement of the present invention is also reduced and enters post processing due to dissolvent residual
The pollution to environment that unit is caused.The coacervation device of the present invention has longer controllability, can be with root
Need, come the concentration for adjusting and controlling each condensing field micelle water, finally to realize to micelle in condensing field according to technique
The regulation of the time of staying of water, therefore device operating flexibility is larger.In addition, the condensing field of the present invention can be with
Self-cleaning function is realized, steam blowing can be used by the design of a circle steam jet in skimming baffle,
Periodic cleaning baffle plate, with prevent blocking, wall built-up situations such as occur.
The present invention it is a kind of preferred embodiment in, relative to three traditional kettle cohesion process, incite somebody to action this
When the method and apparatus of invention is applied to the elastomeric agglomeration process such as SBS, SIS, the side of the application
Method can by micelle water the second condensing field extended residence time 9.1-20% (refer to the present invention stop
The difference of the time of staying of time and prior art accounts for the percentage ratio of the time of staying of prior art, below
Together), the extended residence time 17.95-27.65% of the 3rd condensing field；In the final dry glue of traditional handicraft
Resid amount (i.e. organic solvent residue quantities) is 0.25 weight % or so, and adopts the present processes last
Gained dry glue in resid amount be 0.1 weight % below, solvent removal effect is significant；Relative to tradition
Three kettle cohesion process, the present processes can reduce 10-20% steam consumptions.
Hereinafter will be described the present invention by embodiment.
In following examples, the coacervation device for being adopted is as shown in figure 1, wherein：
First condensing field F1, the height of the second condensing field F2 and the 3rd condensing field F3 are 5400mm, are sprayed
At wall of the sebific duct in height for the condensing field of 1800mm, glue spraying pipe is 60 with the angle of the wall of condensing field
Degree, glue spraying pipe are 100mm with the distance of condensing field junction point to skimming baffle upper edge；Skimming baffle
Drum structure is formed in condensing field and its second plane has same gradient with glue spraying pipe, separate gear
It is 0.75 that plate forms the ratio of the diameter and condensing field internal diameter of drum structure in condensing field：1, so that
The cavity that the side wall of the skimming baffle and condensing field is surrounded accounts for 14.6 volumes % in the space of condensing field；Point
The aperture in the hole on baffle plate is Ф 4mm；The aperture in the hole on the annular feed pipe with steam nozzle is
Ф2mm。
In following comparative example, the coacervation device that adopted as shown in figure 4, with the coacervation device shown in Fig. 1
Except for the difference that, there is no in the condensing field adopted by which skimming baffle, and the steam of condensing field F1 is added
It is to add from bottom and is that bottom is provided with a steam entry port, and the directly pipe with conveying steam
Road connect, rather than shown in Fig. 1 from bottom be the annular feed pipe with multiple steam nozzles steaming
Vapour feed arrangement is added；And the steam of condensing field F2 and F3 is sprayed into from bottom and bottom is provided with a steaming
Vapour inlet port, and be directly connected with the pipeline of conveying steam, do not adopt with multiple steam nozzles yet
The steam feed device of annular feed pipe.
In following examples and comparative example, rubber polymer solution is styrene-isoprene block polymerization
The hexane solution of thing, wherein, the content of styrene-isoprene block polymer is 10 weight %.
Embodiment 1
The present embodiment is used for the condensing method of the rubber polymer solution for illustrating the present invention.
By rubber polymer solution, with the flow and hot water of 5000kg/h, (temperature is 90 DEG C, and flow is
Sent in Fig. 1 the first condensing field F1 from glue spraying pipe with the flow of 45000kg/h after 40000kg/h) mixing,
Bottom is kept to be 450kg/h (from the second condensing field F2 and the by the steam flow of steam feed device 3
The steam that the kettle top row of three condensing field F3 goes out), the discharge of kettle top water inlet 7 is 5000kg/h；
Wherein, the operating pressure of the first condensing field F1 be 0.02～0.03MPa of gauge pressure, temperature be 88～
92 DEG C, the time of staying of micelle water is 49.1min；
The operating pressure of the second condensing field F2 is 0.06～0.09MPa of gauge pressure, and temperature is 103～110 DEG C,
The time of staying of micelle water is 57.9min；The steam flow of the feeding of steam feed device is 1200kg/h
(from the steam of outside low-pressure steam device conveying)；
The operating pressure of the 3rd condensing field F3 is 0.001～0.005MPa of gauge pressure, and temperature is 95～100 DEG C,
The time of staying of micelle water is 64.6min；The a small amount of steam of feeding of steam feed device with carry out purging from
Clearly (from the steam of outside low-pressure steam device conveying)；
The flow of P1 pumps is 39792kg/h, and the flow of P2 pumps is 5000g/h, and the flow of P3 pumps is
The flow of 35675kg/h, P4 pump is 5000g/h, and the flow of P5 pumps is 32542kg/h, the flow of P6 pumps
For 3000g/h.
The total residence time of condensed system is 2.86h, and system consumes the water and 1200kg of 32000kg altogether
Steam, processed the polymer solution of 5000kg, received from the steam (vapor) outlet on the first condensing field F1 kettles top
Collection obtains the steam water (hexane content is 79.44 weight %) of 5658kg, the P5 of the 3rd condensing field F3
It is pumped to post processing and is dried to obtain dry glue 500kg, wherein, in dry glue, hexane content is 0.1 weight %.
Comparative example 1
By polymer solution, with the flow and hot water of 5000kg/h, (temperature is 90 DEG C, and flow is
Sent in Fig. 3 the first condensing field F1 from glue spraying pipe with the flow of 45000kg/h after 40000kg/h) mixing,
The steam flow for keeping the offer of kettle bottom is 450kg/h (from the second condensing field F2 and the 3rd condensing field F3
The steam that goes out of kettle top row)；
Wherein, the operating pressure of the first condensing field F1 be 0.02～0.03MPa of gauge pressure, temperature be 88～
92 DEG C, the time of staying of micelle water is 49.1min；
The operating pressure of the second condensing field F2 is 0.06～0.09MPa of gauge pressure, and temperature is 103～110 DEG C,
The time of staying of micelle water is 53.4min；The steam flow of feeding is 1400kg/h (from the low of outside
The steam of pressure steaming device conveying)；
The operating pressure of the 3rd condensing field F3 is 0.001～0.005MPa of gauge pressure, and temperature is 95～100 DEG C,
The time of staying of micelle water is 53.6min；The steam flow of feeding is 100kg/h (from outside low pressure
The steam of steaming device conveying)；
The flow of P1 pumps is 39832kg/h, and the flow of P3 pumps is 40876.25kg/h, and the flow of P5 pumps is
40843.25kg/h。
The total residence time of condensed system is 2.6h, and system consumes the water and 1500kg of 40000kg altogether
Steam, processed the polymer solution of 5000kg, received from the steam (vapor) outlet on the first condensing field F1 kettles top
Collection obtains the steam water (hexane content is 79.3 weight %) of 5618kg, the P5 of the 3rd condensing field F3
It is pumped to post processing and is dried to obtain dry glue 501.25kg, wherein, in dry glue, hexane content is 0.25 weight %.
By embodiment 1 and the Comparative result of comparative example 1, solvent in the dry glue obtained by embodiment 1
I.e. hexane content is only 0.1 weight %, and comparative example 1 is then 0.25 weight %, relative to comparative example 1
Say, the solvent that the method for the present invention is enabled in dry glue declines more than 60%, with preferably molten
Agent removal effect, also, embodiment 1 reduces 20% than comparative example steam usage amount, is to employ more
Few steam flow obtaining more preferable solvent removal effect, so as to method of the present invention material consumption and energy consumption all
Relatively low, cost is lower, more the value of commercial Application.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, can be to the technical side of the present invention
Case carries out various simple variants, and these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned specific embodiment is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, the present invention are no longer separately illustrated to various possible compound modes.
Additionally, combination in any between a variety of embodiments of the present invention, can also be carried out, as long as its
Without prejudice to the thought of the present invention, which should equally be considered as content disclosed in this invention.
Claims (15)
1. a kind of rubber polymer condensing field, it is characterised in that the condensing field is used for rubber polymer
Solvent evaporation in solution is removed to obtain the micelle water containing rubber polymer, and the condensing field includes：
Rubber polymer solution feed unit, for the mixture of rubber polymer solution and water is imported to
In the condensing field；
Steam feed unit, for steam being imported in the condensing field to be connect with the mixture
Touch；
Water separative element, for the part water in the material after the contact is separated.
2. condensing field according to claim 1, wherein, the water separative element is by separating gear
Plate (4) is formed, wherein, the upper edge of skimming baffle (4) is engaged with the side wall of condensing field, institute
The lower edge for stating skimming baffle (4) is engaged with the bottom of condensing field, so as to by the bottom of the condensing field
The cavity that a circle is surrounded by the side wall of the skimming baffle (4) and condensing field is isolated, is passed through with accommodating
The water that the through hole of the skimming baffle (4) is separated and gone out.
3. condensing field according to claim 2, wherein, by the skimming baffle (4) and cohesion
The cavity that the side wall of kettle is surrounded accounts for 3-20 volumes % in the space of condensing field.
4. the condensing field according to any one in claim 1-3, wherein, the steam feed
Unit is the annular feed pipe (3) with steam nozzle, and the annular feed pipe (3) is around described point
Arrange from the inner side of baffle plate (4) and near the lower edge of skimming baffle (4).
5. the condensing field according to Claims 2 or 3, wherein, the rubber polymer solution enters
Material unit has glue spraying pipe (2), and which is stretched in kettle on condensing field wall obliquely,
Preferably, the skimming baffle (4) is made up of the first periphery and the second periphery, wherein,
First periphery is parallel with the wall of the condensing field, and second periphery is one end and the first periphery
Upper peripheral edge combine, the inclined plane combined with the wall of the condensing field by the other end, and the inclined plane has
With glue spraying pipe (2) gradient equally.
6. the condensing field according to any one in claim 2-5, wherein, the skimming baffle
(4) cover and be arranged with outlet (6), the through hole being provided with from the skimming baffle (4) is separated
And the water for going out, it is expelled to outside condensing field by the outlet (6).
7. a kind of coacervation device of rubber polymer solution, the coacervation device include more than 2 for connecting
Condensing field, wherein, the first condensing field (F1) for by the mixture of rubber polymer solution and water with
Steam carries out the first contact so that solvent evaporation removing, and condensing field thereafter is for by previous condensing field
After middle contact, the micelle water of gained carries out solvent evaporation removing again；Wherein, the coacervation device is included
Condensing field described in any one in claim 1-6 of at least one of condensing field.
8. coacervation device according to claim 7, wherein, the coacervation device includes the 2-10 for connecting
Individual condensing field, preferably 2-4, more preferably 3；
Under the condensing field that the coacervation device includes 3 series connection, it is preferable that the first condensing field (F1),
Second condensing field (F2) and the 3rd condensing field (F3) are all in claim 1-6 described in any one
Condensing field.
9. coacervation device according to claim 8, wherein, first condensing field (F1)
Top also include water inlet (7), by the water inlet (7) cause by first condensing field (F1),
The water that the outlet of the second condensing field (F2) and the 3rd condensing field (F3) is discharged enters into described first and coagulates
Recycling in poly- kettle (F1).
10. coacervation device according to claim 8 or claim 9, wherein, second condensing field (F2)
Also include steam outlet (8), the steam outlet (8) with the top of the 3rd condensing field (F3)
Connect with the steam feed unit of first condensing field (F1), so that second condensing field (F2)
The steam discharged with the top of the 3rd condensing field (F3) is entered by the steam of first condensing field (F1)
Material unit is entered in first condensing field (F1) to recycle.
A kind of 11. condensing methods of rubber polymer solution, wherein, the method is by 3 claim
Carry out in the coacervation device that condensing field in 1-6 described in any one is in series, the method includes：
(1) in the first condensing field (F1), by the mixture of rubber polymer solution and the first water by
Rubber polymer solution feed unit is added and carries out the with the first steam added by steam feed unit
Part water in material after first contact is separated by water separative element and is gone out, divided by one contact
The second water for separating out and the first micelle water after having separated part water；
(2) in the second condensing field (F2), the first micelle water is entered by rubber polymer solution
Material unit is added and carries out the second contact with the second steam added by steam feed unit, is separated by water
Part water in material after second contact is separated and is gone out by unit, obtains the 3rd water and the separation isolated
The second micelle water after the water of part；
(3) in the 3rd condensing field (F3), the second micelle water is entered by rubber polymer solution
Material unit is added, and is separated part water by water separative element and is gone out, obtain the 4th water isolated and point
The 3rd micelle water after the water of part.
12. condensing methods according to claim 11, wherein, first condensing field (F1)
Operating condition include：Gauge pressure is 0.003-0.03MPa, and temperature is 83-92 DEG C；Second condensing field
(F2) operating condition includes：Gauge pressure is 0.06-0.09MPa, and temperature is 103-110 DEG C；Described
The operating condition of three condensing fields (F3) includes：Gauge pressure is -0.001MPa to 0.005MPa, and temperature is
93-100℃。
13. condensing methods according to claim 11 or 12, wherein, step (1) is separated
The 4th water that the 3rd water and step (3) that the second water for going out, step (2) are isolated is isolated is returned to
In first condensing field (F1).
14. condensing methods according to any one in claim 11-13, wherein, by described
The steam that the steam and the 3rd condensing field (F3) that two condensing fields (F2) are discharged is discharged returns to the first cohesion
In kettle (F1).
15. condensing methods according to any one in claim 11-14, wherein, the rubber
Random copolymer of the polymer solution for conjugated diene homopolymers solution, conjugated diene and vinyl-arene
One or more in the block copolymer solution of solution and conjugated diene and vinyl-arene, it is preferable that
In the rubber polymer solution, the content of rubber polymer is 5-15 weight %.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510607689.9A CN106540472B (en) | 2015-09-22 | 2015-09-22 | The condensing method of rubber polymer condensing field and coacervation device and rubber polymer solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510607689.9A CN106540472B (en) | 2015-09-22 | 2015-09-22 | The condensing method of rubber polymer condensing field and coacervation device and rubber polymer solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106540472A true CN106540472A (en) | 2017-03-29 |
| CN106540472B CN106540472B (en) | 2018-12-28 |
Family
ID=58364862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510607689.9A Active CN106540472B (en) | 2015-09-22 | 2015-09-22 | The condensing method of rubber polymer condensing field and coacervation device and rubber polymer solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106540472B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110669155A (en) * | 2019-09-30 | 2020-01-10 | 杭州双安科技有限公司 | Device and method for trapping gas-phase entrained fine colloidal particles in rubber solution elutriation method condensation process |
| CN114950270A (en) * | 2022-05-26 | 2022-08-30 | 宁波新溶聚企业管理合伙企业(有限合伙) | Four-kettle continuous production equipment and production method for producing solution-polymerized styrene butadiene rubber with low content of VOCs (volatile organic compounds) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030193099A1 (en) * | 2000-06-02 | 2003-10-16 | Zhanping Xu | Increased efficiency fractional distillation tray |
| CN1510057A (en) * | 2002-12-26 | 2004-07-07 | 中国石油化工股份有限公司北京燕山分 | Method for eliminating fugitive component in polymer solution |
| CN101235105A (en) * | 2007-12-30 | 2008-08-06 | 中国石油大庆石油化工总厂 | Method for agglomerating solution-polymerized rubber |
| CN201525816U (en) * | 2009-10-27 | 2010-07-14 | 中石油东北炼化工程有限公司锦州设计院 | Rubber double-reactor elutriation coagulation device with low energy consumption |
| CN202543122U (en) * | 2012-03-21 | 2012-11-21 | 中国石油化工股份有限公司 | Agglomeration equipment |
-
2015
- 2015-09-22 CN CN201510607689.9A patent/CN106540472B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030193099A1 (en) * | 2000-06-02 | 2003-10-16 | Zhanping Xu | Increased efficiency fractional distillation tray |
| CN1510057A (en) * | 2002-12-26 | 2004-07-07 | 中国石油化工股份有限公司北京燕山分 | Method for eliminating fugitive component in polymer solution |
| CN101235105A (en) * | 2007-12-30 | 2008-08-06 | 中国石油大庆石油化工总厂 | Method for agglomerating solution-polymerized rubber |
| CN201525816U (en) * | 2009-10-27 | 2010-07-14 | 中石油东北炼化工程有限公司锦州设计院 | Rubber double-reactor elutriation coagulation device with low energy consumption |
| CN202543122U (en) * | 2012-03-21 | 2012-11-21 | 中国石油化工股份有限公司 | Agglomeration equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110669155A (en) * | 2019-09-30 | 2020-01-10 | 杭州双安科技有限公司 | Device and method for trapping gas-phase entrained fine colloidal particles in rubber solution elutriation method condensation process |
| CN110669155B (en) * | 2019-09-30 | 2021-09-03 | 杭州双安科技有限公司 | Device and method for trapping gas-phase entrained fine colloidal particles in rubber solution elutriation method condensation process |
| CN114950270A (en) * | 2022-05-26 | 2022-08-30 | 宁波新溶聚企业管理合伙企业(有限合伙) | Four-kettle continuous production equipment and production method for producing solution-polymerized styrene butadiene rubber with low content of VOCs (volatile organic compounds) |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106540472B (en) | 2018-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8283178B2 (en) | Method and apparatus for removing halogen hydracids from biomass hydrolysates | |
| CN102439122B (en) | For implementing the method and apparatus of chemical process | |
| JP2020182950A (en) | Solid liquid separation of using non-dry rotary pressure filter | |
| CN107793498B (en) | A kind of method and apparatus of rubber polymer cohesion | |
| US20130087641A1 (en) | Method for preparing and detoxifying | |
| CN104262514A (en) | Process For The Polyolefin Finishing | |
| US20230064044A1 (en) | Method and system for producing a polymer | |
| CN102453161A (en) | Polypropylene powder postprocessing method | |
| CN102516802A (en) | Method for extracting capsicum red pigment and capsaicin | |
| CN101981061B (en) | Process for brominating butadiene/vinyl aromatic copolymers | |
| CN106540472A (en) | The condensing method of rubber polymer condensing field and coacervation device and rubber polymer solution | |
| CN102993455A (en) | Recycling method and system of tail gas of polypropylene production device | |
| CN106397641B (en) | Remove the device and method of fugitive constituent in polymer powders | |
| CN105693899B (en) | The device and its production method of micro- outstanding newborn method production PVC paste resin | |
| CN205398436U (en) | Sludge dewatering system | |
| US2389958A (en) | Recovery of polymeric materials | |
| CN110669155B (en) | Device and method for trapping gas-phase entrained fine colloidal particles in rubber solution elutriation method condensation process | |
| CN107793504B (en) | A kind of device of rubber polymer cohesion | |
| CN102452688B (en) | Device and method for treating polyolefin catalyst filtrate | |
| US20220297026A1 (en) | Clog free condensation system for pyrolysis vapor of pet containing polymer | |
| CN108699177A (en) | It is used to prepare the technique of dried powder | |
| CN113912754A (en) | Technical combination method for removing VOCs and odor from polyolefin resin | |
| CN113736135A (en) | Method and device for recycling chlorine-containing waste plastics and heavy oil blending component | |
| CN102206334B (en) | Method for removing volatile matters from aliphatic polycarbonate by washing and condensing | |
| JPH07179651A (en) | Process for treating thermoplastic resin waste |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |