CN106397634A - Device and method for improving coagulation effect of isoprene rubber - Google Patents

Device and method for improving coagulation effect of isoprene rubber Download PDF

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Publication number
CN106397634A
CN106397634A CN201510455525.9A CN201510455525A CN106397634A CN 106397634 A CN106397634 A CN 106397634A CN 201510455525 A CN201510455525 A CN 201510455525A CN 106397634 A CN106397634 A CN 106397634A
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glue
compressed air
isoprene rubber
feedway
condensing field
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CN201510455525.9A
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CN106397634B (en
Inventor
宋尚德
张桂荣
黄文涛
杨俊峰
兰明
赵彦强
杨金胜
田晓军
肖翠
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Petrochina Co Ltd
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Petrochina Co Ltd
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Abstract

The invention provides a device and a method for improving the coagulation effect of isoprene rubber, which comprises the following steps: the pipeline is provided with a plurality of openings and annularly wound in the circumferential direction of the inner wall of the condensation kettle, and an air inlet of the pipeline is connected with a compressed air supply device; the dual-fluid injection system comprises a dual-fluid nozzle, and a compressed air supply device and a glue solution supply device which are connected with the dual-fluid nozzle, wherein compressed air from the compressed air supply device and the glue solution from the glue solution supply device are injected into the condensation kettle through the dual-fluid nozzle.

Description

A kind of device and method improving isoprene rubber flocculating result
Technical field
The present invention relates to synthetic rubber field is and in particular to one kind improves isoprene rubber cohesion using compressed air The method and device of effect, is improved by coacervation device and compressed air uses, and reduces steam consumption, extends Isoprene rubber cohesion unit is driven the cycle.
Background technology
Isoprene rubber (cis-1,4-polyisoprene rubber) is a kind of high-cis being synthesized by isoprene (cis- Isosorbide-5-Nitrae content is 95%~98%) rubber, its structure and performance are approximate with natural rubber, are referred to as closing Become natural rubber, entirely entitled along Isosorbide-5-Nitrae-polyisoprene, natural rubber can be replaced to apply in high-capacity tyre and Off-the-highway tire, it may also be used for medicine and other fields.
Industrialized isoprene rubber technology is solution polymerization process at present, in solution polymerization process preparation rubber process In the glue of polymerization workshop section synthesis in addition to the rubber containing about 10, also contain substantial amounts of solvent and not anti- The monomer answered, catalyst of remaining etc., rubber are separated from glue, have multiple postprocessing working procedures Can select, such as wet type coacervation, direct drying method, phase separation method etc..In theory, latter two side Method is more reasonable, and its observable index coacervation is much lower, very attractive, but higher to equipment requirements, at present greatly How under test, widely used wet type condensation technique therefore in commercial production.
When glue cohesion is carried out using wet type condensation technique, because solvent gasification rate is slow, gelatin viscosity Larger, particularly isoprene rubber, not only glue is tacky, even the micelle having condensed, strong Under stirring, as long as mutual collision may be bonded together, long-time driving, micelle bonding in bulk, blocking Pipeline, condensing field kiss-coating, stifled glue, seizes, carries kettle on the back it has to open kettle gel resin, and it is passive to produce, Er Qieyou It is bonded to bulk in condensing the blob of viscose quickly, within the same time of staying, solvent within glue and not The monomer of reaction can not depart from completely, and blob of viscose oil content is high, and this not only can reduce solvent and using of monomer is imitated Rate, and can lead to skid on rubber mixing machine in last handling process, it is difficult blanking in banbury, manufactured goods are easily raw Become bubble etc..The selection of the design of cohesion equipment, cohesion process optimization and interleaving agent be prevent micelle bonding, Improve flocculating result, the effective means reducing steam consumption, extending the driving cycle.
Patent CN201110051930.6 is passed through to change glue feeding manner and glue form, using split group Box-like stirring and collocation glue and steam jet position, rationally improve stirring power distribution in condensing field, improve Flocculating result.
Patent CN201120054983.9 prepares kettle, glue preheater, cohesion by setting up just cohesion glue Kettle Internal baffle is distributed, installs and set up steam port etc. on micelle waterpipe between thimble and condensing field in glue solution nozzle Method obtain comparatively ideal isoprene rubber cohesion form, reduce steam loss, improve material flow pattern in condensing field, Solve sizing material blockage problem it is ensured that glue condenses continuous and steady operation.
Patent CN201110051895.8 provides a kind of addition interleaving agent and improves isoprene rubber flocculating result Method, to prevent from kiss-coating, stifled glue in condensing field in coacervation process, seize, carry kettle phenomenon on the back, extends solidifying Poly- kettle is driven the cycle, reduces the oil content of cohesion gained isoprene rubber, reduces steam consumption, is conducive to follow-up Extrusion drying process, reduce isoprene rubber production cost.
Foreign patent is many to improve flocculating result by way of adding dispersant to condensing field, prevents micelle from gluing Knot, patent US3268501 and US3042637 add in condensing field in coacervation process alkaline metal salt, Alkyl sulfate, the method for alkylbenzenesulfonate effectively improve the bonding in bulk phenomenon of micelle. US3190868 makes the micelle in condensing field become by adding water-soluble polymer dispersant in condensed system High degree of dispersion state, the nitrile that these polymeric dispersants generally include single or multiple carboxyls or can form carboxyl Class, amino and lipid group, these polymeric dispersants can add condensing field in the way of free acid, Can be added in the way of the ammonium salt of polymeric dispersant, barium salt, strontium salt, aluminium salt, cobalt salt, iron salt, nickel salt Enter condensing field.
Above-mentioned patent is from largely improving isoprene rubber flocculating result, reduce steam consumption, prolongation The driving cycle, but still suffer from condensing that unit steam consumption quantity is high, system foam is many, glue is in condensing field liquid level Bond the problem sticking together.
Content of the invention
Present invention aim at, a kind of device and method improving isoprene rubber flocculating result is provided.The present invention Aim to overcome that problem of the prior art, the device and method improving isoprene rubber flocculating result is provided, To prevent micelle in coacervation process from sticking together in condensing field liquid level bonding, strengthen condensing field mixing effect, improve micelle Form, reduces coacervated system surface tension, thus reducing system foam volume, reducing cohesion gained isoprene rubber Oil content, reduce steam consumption, extend condensing field drive the cycle, reduce isoprene rubber production cost.
The invention provides improving the device of isoprene rubber flocculating result, including:
One pipeline being provided with multiple perforates, is annularly set around the circumferential direction of condensing field kettle inwall, described pipe The air inlet of line is connected with compressed air feedway;
A pair of infusion fluid systems, the compression be connected including a two-fluid spray nozzle and with described two-fluid spray nozzle Air feeder and glue feedway, from the compressed air of described compressed air feedway be derived from The glue of glue feedway passes through described double flowing nozzle and injects in described condensing field.
The above-mentioned device improving isoprene rubber flocculating result, described two-fluid spray nozzle is double-layered cylinder inside and outside Structure, outer layer is air chamber, and described air chamber is provided with a compressed air inlet and a compressed air outlet, described pressure Contracting air intake is connected with described compressed air feedway, and internal layer is glue room, and described glue room is provided with one Glue entrance and glue outlet, described glue entrance is connected with glue feedway, and described glue outlet will Described air chamber is connected with described glue room, and described compressed air outlet is exported in same axis direction with glue On.
The above-mentioned device improving isoprene rubber flocculating result, the direction of described perforate is put down with described poly- kettle kettle wall OK.
The above-mentioned device improving isoprene rubber flocculating result, described the number of openings is 3~6, and described many Individual perforate is uniformly distributed at equal intervals.
The above-mentioned device improving isoprene rubber flocculating result, injects compressed air pressure and the note of described pipeline The compressed air pressure entering described two-fluid spray nozzle is 0.3MPa~0.8MPa.
The above-mentioned device improving isoprene rubber flocculating result, described condensing field kettle inwall be provided with multiple for solid The fixing point of fixed described pipeline.
The above-mentioned device improving isoprene rubber flocculating result, described glue mouth goes out less than described compressed air Mouthful.
The above-mentioned device improving isoprene rubber flocculating result, a diameter of 5mm of described glue mouth.
Present invention also offers a kind of method improving isoprene rubber flocculating result, it is applied to the claims The device improving isoprene rubber flocculating result any one of 1-8 is it is characterised in that include following walking Suddenly:
There is the pipeline of multiple perforates in the circumferential direction winding annular in shape of condensing field kettle inwall, and described pipe The air inlet of line is connected with compressed air feedway;
One two-fluid spray nozzle is set, and described double flowing nozzle connects described compressed air feedway and a glue simultaneously Liquid supplying device, by the compressed air from described compressed air feedway with from glue feedway Glue passes through described double flowing nozzle and injects in described condensing field.
A kind of method of above-mentioned improvement isoprene rubber flocculating result is it is characterised in that inject described pipeline The compressed air pressure of compressed air pressure and the described two-fluid spray nozzle of injection is 0.3MPa~0.8MPa, Described glue speed in injection condensing field kettle is 1m3/h.
The present invention compared with prior art has following significant progress and positive effect:
1. setting up circle compressed-air line with holes along first, second condensing field kettle wall circumference, using pressure Air stripping in coacervated system hot water for the contracting air, expansion and peptizaiton improve the axle in condensing field for the coacervated system To flow effect, eliminate stirring dead angle, prevent micelle from sticking together in condensing field liquid level bonding, extend cohesion unit and open The car cycle.
2. glue solution nozzle adopts two-fluid spray nozzle, using compressed air replace steam glue is carried out cutting and Dispersion, improves micelle state, reduces steam consumption, reduces product cost.
3. reduce isolation agent, reduce system surface tension, decrease system foam volume, reduce Interleaving agent cost, it is to avoid the risk of foam blocking pipeline and condensing plant.
4. the gas effect of compressed air can improve condensing field solvent removal speed, reduces micelle oil content, Reduce solvent consumption.
5. coacervation process steam consumption reduces, and discharge of wastewater reduces.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as to the present invention's Limit.
Brief description
Fig. 1 is the device front view of one embodiment of the invention;
Fig. 2 is the device top view of one embodiment of the invention;
Fig. 3 is the structural representation of double flowing nozzle of the present invention.
Reference:
Condensing field 1
Handle money 2
Perforate 21
Fixing point 22
Double flowing nozzle 3
Air chamber 31
Compressed air inlet 311
Compressed air outlet 312
Glue room 32
Glue inlet port 321
Glue outlet 322
Compressed air feeding line 4
Specific embodiment
Below in conjunction with the accompanying drawings the structural principle and operation principle of the present invention is described in detail:
The present invention will be further described by the following examples, cited embodiment, is in scale examination The example that in production, practical operation is verified, is therefore easy to be grasped by those skilled in the art.As Make some changes on the basis of the present invention, it is substantially not out the scope of the present invention, and described example is only The present invention is explained, restriction is not made to the present invention.
As shown in figure 1, Fig. 1 is the front view of device, Fig. 2 is the top view of device, and the present invention provides Improve the device of isoprene rubber flocculating result, including:
One pipeline 2 being provided with multiple perforates, is annularly set around the circumferential direction of the kettle inwall of condensing field 1, The air inlet of pipeline 2 is connected with compressed air feedway (in figure is not drawn into);In detail it, the first cohesion Kettle connects the second condensing field, is setting up circle pipe with holes along the kettle wall circumference of the first condensing field, the second condensing field Line, on pipeline 2, the number of perforate is 3-6, and perforate 21 is uniformly distributed on circular compressed-air line, The direction of perforate 21 is parallel with condensing field kettle wall, and the compressed air from compressed air feedway passes through pressure Contracting air feed pipeline 4 inject this pipeline 2, injection pipeline 2 in compressed air pressure be 0.3MPa~ 0.8MPa, using gas in coacervated system hot water for the nitrogen in compressed air, expansion and peptizaiton To improve the axial flow effect in condensing field for the coacervated system, eliminate stirring dead angle, prevent micelle in condensing field 1 liquid level bonding sticks together.The scheme of installation of compressed-air line is as shown in figure 1, be the master of this device in Fig. 1 View, Fig. 2 is the top view of this device, is provided with multiple pipeline fixing points 22 in condensing field 1 kettle wall, can Compressed air is handled money in the circumferentially fixed circumference in condensing field 1.
A pair of infusion fluid systems, the compressed air be connected including a two-fluid spray nozzle and with two-fluid spray nozzle Feedway and glue feedway (in figure is not drawn into), from the compressed air of compressed air feedway Injected in condensing field 1 by double flowing nozzle 3 with the glue from glue feedway.In detail it, by glue With compressed air, condensing field 1, the compressed air in injection condensing field 1 are injected simultaneously into by this double flowing nozzle 3 Pipe pressure is 0.3MPa~0.8MPa, and the described glue speed in injection condensing field 1 kettle is 1m3/ h, such as schemes Shown in 3, this double flowing nozzle 3 is double-layered cylinder structure inside and outside, and outer layer is air chamber 31, described air chamber 31 It is provided with a compressed air inlet 311 and compressed air outlet 312, air chamber 31 passes through a compressed air inlet 311 are connected with compressed air feedway, and the compressed air outlet slit of compressed air 312 enters in condensing field 1, Internal layer is glue room 32, and described glue room 32 one end is glue inlet port 321, and the other end exports for glue 322, the glue inlet port 321 of glue room 32 is connected with glue feedway, air chamber 31 and glue room 32 322 connections are exported by a glue, glue outlet 322 is in same axial direction side with compressed air outlet 312 Upwards, and described glue exit radius 322 are less than compressed air outlet radius 312, glue outlet 322 A diameter of 5mm, the glue that the compressed air that compressed air outlet 312 sprays will spray through glue outlet 322 Cut and disperseed.
Present invention also offers a kind of be applied to the above-mentioned device improving isoprene rubber flocculating result, including as follows Step:
There is the pipeline 2 of multiple perforates, pipeline in the circumferential direction winding annular in shape of condensing field 1 kettle inwall 2 air inlet is connected with compressed air feedway;
One two-fluid spray nozzle is set, and double flowing nozzle 3 connects compressed air feedway and glue supply simultaneously Device, the compressed air from compressed air feedway and the glue from glue feedway is passed through double In flow nozzle injection condensing field 1.Inject compressed air pressure and the injection two-fluid spray nozzle 3 of described pipeline Compressed air pressure be 0.3MPa~0.8MPa, the glue speed in injection condensing field 1 kettle is 1m3/h.
Glue and gas are passed through double flowing nozzle 3 injecting compressed air pipeline, using compressed air in agglomerate It is that air stripping in hot water, expansion and peptizaiton improve the axial flow effect in condensing field 1 for the coacervated system, Eliminate stirring dead angle, prevent micelle from sticking together in condensing field 1 liquid level bonding.
For further describing using and utilizing effect produced by this device of this device, especially exemplified by being implemented as follows Example.
Embodiment 1
Rare-earth isoprene rubber hexane solution used is molten with hexane for isoprene under rare earth catalyst effect Agent carries out polyreaction acquisition, its glue content be 12%, rare-earth isoprene rubber Isosorbide-5-Nitrae-cis-content 96%, point It is 85 that son amount is distributed as 2.5, Mooney viscosity.Concrete operation step is as follows:
Rare-earth isoprene rubber enters in condensing field 1 by two-fluid spray nozzle spray 3, the first condensing field, the second cohesion Kettle kettle inwall circumference is all provided with circle compressed-air line with holes, and each pipeline sets 3 perforates, opens for 3 Hole is uniformly distributed on circular compressed-air line, and compressed air outlet is parallel with condensing field 1 kettle wall, tool Body operating condition is:By the compressed air from compressed air feedway and dilute from glue feedway Native isoprene rubber is injected in condensing field 1 by double flowing nozzle, injects compression toward compressed-air line with holes simultaneously Air, the glue speed of entering injected by double flowing nozzle in condensing field 1 is 1m3/h, toward double flowing nozzle and with holes In pipeline, the pressure of the compressed air of injection is 0.6MPa, and isolation agent should be maintained at 0.03kg/t glue Liquid, 83 DEG C of the temperature of the first condensing field, 280 revs/min of mixing speed, 93 DEG C of the temperature of the second condensing field, 280 revs/min of mixing speed, cohesion 24h does not seize, blocks up glue, carries kettle phenomenon on the back, in process of the test Condensing field 1 liquid level does not have micelle to tie the phenomenon that sticks together, and does not have foam, open condensing field 1 after off-test in kettle Observe, stirring does not have kiss-coating phenomenon, test result shows that buffings granularity is 5~10mm, rubber oil content For 0.29%, Mooney viscosity 99.6, water vapour consumes 3.5t/t rubber, that is, often produces 1 ton of rubber and need Consume 3.5 tons of vapor.
Embodiment 2
, with embodiment 1, concrete operation step is as follows for glue used:
Rare-earth isoprene rubber enters in condensing field 1 by two-fluid spray nozzle spray 3, the first condensing field, the first cohesion Kettle inwall does not set compressed-air line 2 with holes, and concrete operations condition is:Dress will be supplied from compressed air The compressed air put and the rare-earth isoprene rubber being derived from glue feedway pass through double flowing nozzle 3 injection cohesion In kettle 1, entering glue speed by the rare-earth isoprene rubber that double flowing nozzle injects in condensing field 1 is 1m3/ h, past In double flowing nozzle 3, the pressure of the compressed air of injection is 0.6MPa, and isolation agent should be maintained at 0.05kg/t Glue, 83 DEG C of the temperature of the first condensing field, 280 revs/min of mixing speed, 93 DEG C of the temperature of the second condensing field, 280 revs/min of mixing speed, cohesion 24h does not seize, blocks up glue, carries kettle phenomenon on the back, solidifying after cohesion 4h Poly- kettle 1 liquid level has micelle to tie the phenomenon that sticks together, and in kettle, foam is few, opens condensing field 1 and observes, stir after off-test Mix and there is no kiss-coating phenomenon, test result shows that buffings granularity is 10~15mm, and rubber oil content is 0.49%, Mooney viscosity 99.6, water vapour consumes 3.4t/t rubber.
Embodiment 3
, with embodiment 1, concrete operation step is as follows for glue used:
It is all provided with circle compressed-air line with holes 2 in the first condensing field, the second condensing field kettle wall circumference, each 6 compressed air outlets are set on pipeline 2,6 perforates are uniformly distributed on circular compressed-air line 2, Compressed air outlet is parallel with condensing field kettle wall, and concrete operations condition is:Will be from compressed air feedway Compressed air and from glue feedway rare-earth isoprene rubber by double flowing nozzle 3 inject condensing field Interior, simultaneously toward compressed-air line 2 injecting compressed air with holes, injected in condensing field by double flowing nozzle It is 1m that rare-earth isoprene rubber enters glue speed3/ h, toward in double flowing nozzle 3 and pipeline with holes 2, the compression of injection is empty The pressure of gas is 0.6MPa, and isolation agent should be maintained at 0.05kg/t glue, in the first condensing field 83 DEG C of temperature, 280 revs/min of mixing speed, 93 DEG C of the temperature in the second condensing field, 280 turns of mixing speed / point, cohesion 24h does not seize, blocks up glue, carries kettle phenomenon on the back, and in process of the test, condensing field liquid level does not have Micelle ties the phenomenon that sticks together, and in kettle, foam is few, opens condensing field and observes, stirring does not have kiss-coating phenomenon after off-test, Test result shows that buffings granularity is 5~10mm, and rubber oil content is 0.49%, Mooney viscosity 99.6, Water vapour consumes 4.7t/t rubber.
Embodiment 4
, with embodiment 1, concrete operation step is as follows for glue used:
First condensing field, the second condensing field inwall circumference do not set compressed-air line, are not passed through in glue solution nozzle Compressed air and be passed through steam, concrete operations condition is:By steam and different from the rare earth of glue feedway Penta rubber injects in condensing field by double flowing nozzle, and the steam pressure in injection double flowing nozzle steams for 0.6MPa Vapour, entering glue speed by the rare-earth isoprene rubber that double flowing nozzle injects in condensing field is 1m3/ h, interleaving agent is used Amount should be maintained at 0.08kg/t glue, 83 DEG C of the temperature in the first condensing field, 280 revs/min of mixing speed, Second 93 DEG C of temperature in the kettle of cohesion, 280 revs/min of mixing speed, cohesion 24h does not seize, stifled glue, Carry kettle phenomenon on the back, after cohesion 2h, condensing field liquid level has micelle to tie the phenomenon that sticks together, and has more foam in condensing field, needs Eliminated with defoamer, open condensing field after off-test and observe, stirring does not have kiss-coating phenomenon, test result table Gelatin bits granularity is 10~20mm, and rubber oil content is 0.55%, Mooney viscosity 99.6, water vapour consumption 4.5t/t rubber.
Certainly, the present invention also can have other various embodiments, in the feelings spiritual and its substantive without departing substantially from the present invention Under condition, those of ordinary skill in the art work as and can make various corresponding changes and deformation according to the present invention, but These change accordingly and deform the protection domain that all should belong to appended claims of the invention.

Claims (10)

1. a kind of device improving isoprene rubber flocculating result is it is characterised in that include:
One pipeline being provided with multiple perforates, is annularly set around the circumferential direction of condensing field kettle inwall, described pipe The air inlet of line is connected with compressed air feedway;
A pair of infusion fluid systems, the compression be connected including a two-fluid spray nozzle and with described two-fluid spray nozzle Air feeder and glue feedway, from the compressed air of described compressed air feedway be derived from The glue of glue feedway passes through described double flowing nozzle and injects in described condensing field.
2. the device improving isoprene rubber flocculating result as claimed in claim 1 is it is characterised in that described Two-fluid spray nozzle is double-layered cylinder structure inside and outside, and outer layer is air chamber, and described air chamber is provided with a compressed air and enters Mouth and a compressed air outlet, described compressed air inlet is connected with described compressed air feedway, internal layer For glue room, described glue room is provided with a glue entrance and glue outlet, described glue entrance and glue confession To device connection, described air chamber is connected by described glue outlet with described glue room, described compressed air outlet Export on same axis direction with glue.
3. the device improving isoprene rubber flocculating result as claimed in claim 1 is it is characterised in that described The direction of perforate is parallel with described poly- kettle kettle wall.
4. the device improving isoprene rubber flocculating result as claimed in claim 1 is it is characterised in that described The number of openings is 3~6, and the plurality of perforate is uniformly distributed at equal intervals.
5. the device improving isoprene rubber flocculating result as claimed in claim 1 is it is characterised in that inject The compressed air pressure of the compressed air pressure of described pipeline and the described two-fluid spray nozzle of injection is 0.3MPa~0.8MPa.
6. the device improving isoprene rubber flocculating result as claimed in claim 1 is it is characterised in that described Condensing field kettle inwall is provided with multiple fixing points for fixing described pipeline.
7. the device improving isoprene rubber flocculating result as claimed in claim 1 is it is characterised in that described Glue mouth is less than described compressed air outlet.
8. the device improving isoprene rubber flocculating result as claimed in claim 7 is it is characterised in that institute State a diameter of 5mm of glue mouth.
9. a kind of method improving isoprene rubber flocculating result, is applied to any one of the claims 1-8 The described device improving isoprene rubber flocculating result is it is characterised in that comprise the steps:
There is the pipeline of multiple perforates in the circumferential direction winding annular in shape of condensing field kettle inwall, and described pipe The air inlet of line is connected with compressed air feedway;
One two-fluid spray nozzle is set, and described double flowing nozzle connects described compressed air feedway and a glue simultaneously Liquid supplying device, by the compressed air from described compressed air feedway with from glue feedway Glue passes through described double flowing nozzle and injects in described condensing field.
10. as claimed in claim 9 a kind of method improving isoprene rubber flocculating result it is characterised in that The compressed air pressure injecting described pipeline and the compressed air pressure injecting described two-fluid spray nozzle are 0.3MPa~0.8MPa, the described glue speed in injection condensing field kettle is 1m3/h.
CN201510455525.9A 2015-07-29 2015-07-29 Device and method for improving coagulation effect of isoprene rubber Active CN106397634B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110479515A (en) * 2019-09-16 2019-11-22 山东齐鲁石化工程有限公司 Combined type glue spraying mouth
CN111013200A (en) * 2019-12-11 2020-04-17 上海仪电科学仪器股份有限公司 Injection pump bubble removal device and method for instrument analysis
CN113399135A (en) * 2021-06-22 2021-09-17 中国科学院过程工程研究所 Slice type nozzle for synthetic rubber condensation and devolatilization and use method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3268501A (en) * 1960-12-01 1966-08-23 Phillips Petroleum Co Recovery of polymers from solution
CN102451800A (en) * 2010-10-20 2012-05-16 中国石油化工股份有限公司 Nozzle
CN102181002B (en) * 2011-03-04 2012-11-14 中国石油天然气股份有限公司吉林石化分公司 Wet coagulation method for rare-earth isoprene rubber
CN201990621U (en) * 2011-03-04 2011-09-28 中国石油天然气股份有限公司吉林石化分公司 Device for synthetizing isoprene rubber through wet coagulation process

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110479515A (en) * 2019-09-16 2019-11-22 山东齐鲁石化工程有限公司 Combined type glue spraying mouth
CN111013200A (en) * 2019-12-11 2020-04-17 上海仪电科学仪器股份有限公司 Injection pump bubble removal device and method for instrument analysis
CN113399135A (en) * 2021-06-22 2021-09-17 中国科学院过程工程研究所 Slice type nozzle for synthetic rubber condensation and devolatilization and use method thereof

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