CN108841041A - A kind of method of reclaimed rubber desulfurization - Google Patents
A kind of method of reclaimed rubber desulfurization Download PDFInfo
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- CN108841041A CN108841041A CN201810782413.8A CN201810782413A CN108841041A CN 108841041 A CN108841041 A CN 108841041A CN 201810782413 A CN201810782413 A CN 201810782413A CN 108841041 A CN108841041 A CN 108841041A
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- digester
- reclaimed rubber
- desulfurization
- softening agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
- C08J11/28—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic compounds containing nitrogen, sulfur or phosphorus
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
- C08J11/22—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds
- C08J11/24—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing hydroxyl groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
- C08J11/22—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds
- C08J11/26—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing carboxylic acid groups, their anhydrides or esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2319/00—Characterised by the use of rubbers not provided for in groups C08J2307/00 - C08J2317/00
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of methods of reclaimed rubber desulfurization, including：Step 1: raw material to be desulfurization is uniformly mixed with softening agent；Step 2: mixture is put into digester, and to being heated in digester；Step 3: keeping the temperature in digester constant when temperature reaches 260-265 DEG C in digester；Step 4: stopping keeping the temperature digester after 15-20min, the mixed gas in digester is discharged natural cooling；Step 5: being vented after the completion of purification using emission-control equipment to the mixed gas purification of discharge；Step 6: just desulfurization finishes the rubber in digester when the temperature in digester is down to 65-75 DEG C, it is drawn off and dries to be sealed.Advantages of the present invention：Method provided by the present invention is good to reclaimed rubber desulfurization effect, and waste old is convenient for the calendering and molding of reclaimed rubber under the action of softening agent, can purify, not pollute the environment to exhaust gas after the completion of desulfurization.
Description
Technical field
The present invention relates to reclaimed rubber production equipment technology more particularly to a kind of methods of reclaimed rubber desulfurization.
Background technique
In spent high molecular material, specific gravity shared by waste old is only second to waste plastic.Since scrap rubber will not
Natural decomposition, so that the amount of scrap rubber is in close proximity to the output of rubber, the accumulation of a large amount of waste olds and inappropriate processing,
While resulting in waste of resources, also serious pollution environment causes " black pollution ".By waste old carry out proper treatment and
Resource reclaim can not only protect environment, be also relate to Macromolecular materials industry whether sustainable development.
Reclaimed rubber partly can replace raw rubber to be used for rubber product, to save raw rubber and carbon black, be also beneficial to improve processing
Certain performances of performance and rubber product.Regenerative process is scrap rubber in plasticizer (softening agent and activator), oxygen, heat and mechanical shear
Make the moieties chain of vulcanized rubber and the process of crosslinking points fracture under the comprehensive function cut.Softening agent plays expansion and plasticising is made
With there are commonly coal tar, pine tar, petroleum line softener, cracked residues.Activator can be shortened the reproduction time, reduce softening
Agent dosage.Common activator is aromatic mercaptans and its zinc salt and aromatic disulfides.Reclaimed rubber production process includes powder
3 processes of broken, regeneration (desulfurization) and refining.Technique mainly has oil process (open steam static method), water/oil method (cooking process), high temperature
Dynamic desulfurization, extruding process, method of chemical treatment, microwave method etc..The manufacturing method for the reclaimed rubber that China primarily now applies has oil
Method, water/oil method and high-temperature dynamic desulfurization manufacture reclaimed rubber.
In reclaimed rubber sweetening process, a small amount of hydrogen sulfide and sulfur dioxide gas can be generated, this kind of gas is located not in time
Reason, can pollute atmosphere.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of reclaimed rubber desulfurization proposed
Method.
To achieve the goals above, present invention employs following technical solutions：
A kind of method of reclaimed rubber desulfurization, includes the following steps：
Step 1: raw material to be desulfurization and softening agent are pressed 100:1 is uniformly mixed and stirred for, and obtains mixture；
Step 2: mixture is put into digester, and to being heated in digester, heat while stirring；
Step 3: keeping the temperature in digester constant, and control digester when temperature reaches 260-265 DEG C in digester
Interior pressure keeps the pressure of the pressure in digester in 1.3-1.5MPa；
Step 4: stopping keeping the temperature digester after 15-20min, natural cooling, when the temperature in digester is down to 100-105 DEG C
When, the mixed gas in digester is discharged；
Step 5: being vented after the completion of purification using emission-control equipment to the mixed gas purification of discharge；
Step 6: just desulfurization finishes the rubber in digester when the temperature in digester is down to 65-75 DEG C, it is drawn off simultaneously
Drying is sealed.
Preferably, the raw material of softening agent includes by weight：8-12 parts of glycerol, 2-4 parts of propylene glycol, polysiloxanes polyoxygenated
3-6 parts of alkene ether, 7-12 parts of isopropyl palmitate, 4-6 parts of laurene, 2-3 parts of alkyl phenol polyoxyethylene ether, 2-3 parts of eugenol,
14-17 parts of octyl phenol disodium hydrogen phosphate, 5-7 parts of xylenol, 3-5 parts of benzene sulfonic acid sodium salt, 3-4 parts of cocoyl isethionate.
Preferably, the raw material of softening agent includes by weight：8.3 parts of glycerol, 3.4 parts of propylene glycol, polysiloxanes polyoxygenated
5.7 parts of alkene ether, 8.9 parts of isopropyl palmitate, 4.2 parts of laurene, 2.8 parts of alkyl phenol polyoxyethylene ether, 2.3 parts of eugenol,
16.7 parts of octyl phenol disodium hydrogen phosphate, 5.3 parts of xylenol, 4.4 parts of benzene sulfonic acid sodium salt, 3.5 parts of cocoyl isethionate.
Preferably, the raw material of softening agent includes by weight：9.6 parts of glycerol, 3.8 parts of propylene glycol, polysiloxanes polyoxygenated
3.3 parts of alkene ether, 10.4 parts of isopropyl palmitate, 5.2 parts of laurene, 2.2 parts of alkyl phenol polyoxyethylene ether, 2.7 parts of eugenol,
15.8 parts of octyl phenol disodium hydrogen phosphate, 6.8 parts of xylenol, 4.7 parts of benzene sulfonic acid sodium salt, 3.3 parts of cocoyl isethionate.
Preferably, the raw material of the softening agent includes by weight：10.4 parts of glycerol, 2.3 parts of propylene glycol, polysiloxanes are poly-
4.1 parts of oxyalkylene hydrocarbyl ether, 11.6 parts of isopropyl palmitate, 4.7 parts of laurene, 2.6 parts of alkyl phenol polyoxyethylene ether, eugenol
2.1 parts, 15.2 parts of octyl phenol disodium hydrogen phosphate, 6.2 parts of xylenol, 3.3 parts of benzene sulfonic acid sodium salt, cocoyl isethionate 3.7
Part.
Preferably, emission-control equipment includes absorption tower, and absorption tower connects adsorption tanks by first pipe, and adsorption tanks pass through
Second pipe connects respiratory box, is provided with calcium hydroxide solution in respiratory box, second pipe perforation respiratory box simultaneously protrudes into hydroxide
In calcium solution, blow-down pipe is equipped on the upside of respiratory box, blow-down pipe lower end is connected to respiratory box case.
Preferably, absorption tower includes tower body, be successively arranged from the bottom to top in tower body the first adsorption piece, the second adsorption piece,
Demister forms the first cavity, shape between the second adsorption piece and the first adsorption piece between the first adsorption piece and tower body inside bottom
At the second cavity, third cavity is formed between demister and the second adsorption piece, and the is formed between demister and tower body inside top
Four cavitys are equipped with inlet suction port, exhaust joint and waste liquid connector on tower body, and inlet suction port, waste liquid connector are with described first
Cavity is connected, and exhaust joint is connected with the 4th cavity.
The advantage of the invention is that：Method provided by the present invention is good to reclaimed rubber desulfurization effect, and waste old is softening
It is convenient for the calendering and molding of reclaimed rubber under the action of agent, exhaust gas can be purified, not polluted the environment after the completion of desulfurization.
Detailed description of the invention
Fig. 1 is the basic structure schematic diagram of emission-control equipment；
Fig. 2 is the basic structure schematic diagram on absorption tower；
Fig. 3 is the basic structure schematic diagram of liquid accumulating device.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1
It is provided by the invention Step 1: raw material to be desulfurization and softening agent are pressed 100:1 is uniformly mixed and stirred for, and obtains mixture,
The raw material of softening agent includes by weight：10.6 parts of glycerol, 3.5 parts of propylene glycol, 4.5 parts of polysiloxane polyoxyalkylene hydrocarbyl ether, palm fibre
9.6 parts of palmitic acid isopropyl propionate, 5.3 parts of laurene, 2.6 parts of alkyl phenol polyoxyethylene ether, 2.2 parts of eugenol, octyl phenol phosphoric acid hydrogen two
15 parts of sodium, 6.6 parts of xylenol, 4.4 parts of benzene sulfonic acid sodium salt, 3.3 parts of cocoyl isethionate.
Step 2: mixture is put into digester, and to heating in digester, heat while stirring
Step 3: keeping the temperature in digester constant, and control in digester when temperature reaches 262 DEG C in digester
Pressure keeps the pressure of the pressure in digester in 1.35MPa；
Step 4: stopping keeping the temperature digester after 18min, natural cooling will take off when the temperature in digester is down to 102 DEG C
Mixed gas discharge in sulphur tank.
Step 5: being vented, the mixed gas purification of discharge such as Fig. 1-3 institute after the completion of purification using emission-control equipment
Show, emission-control equipment includes absorption tower 51, and absorption tower 51 includes tower body, is successively arranged the first absorption from the bottom to top in tower body
Part 51.1, the second adsorption piece 51.2, demister 51.4, the first adsorption piece 51.1 is identical as 51.2 structure of the second adsorption piece, they
Include adsorbent supporting plate 51.11, through-hole is uniformly provided on supporting plate 51.11, is equipped with adsorbent on the upside of adsorbent supporting plate 51.11.
Adsorbent in first adsorption piece 51.1 uses activated alumina adsorbents, and the adsorbent in the second adsorption piece 51.2 uses silica gel
Adsorbent.
The first cavity 51.91, the second adsorption piece 51.2 and are formed between first adsorption piece 51.1 and tower body inside bottom
The second cavity 51.92 is formed between one adsorption piece 51.1, and third cavity is formed between demister 51.4 and the second adsorption piece 51.2
51.93, between demister 51.4 and tower body inside top formed the 4th cavity 51.94, on tower body be equipped with inlet suction port 51.7,
Exhaust joint 51.71 and waste liquid connector 51.72, mating connection sewage pipe 51.8 at waste liquid connector 51.72 fill on sewage pipe 51.8
There is blowdown valve, inlet suction port 51.7, waste liquid connector 51.72 are connected with first cavity 51.91, exhaust joint 51.71
It is connected with the 4th cavity 51.94.Inlet suction port 51.7 is connected by corresponding admission line with digester.
Be equipped with the first shower tray 51.6 in the third cavity 51.93, the inlet of the first shower tray 51.6 by into
Liquid pipe 51.51 connects the water tank 51.5 on the outside of tower body.It is equipped with liquid accumulating device 51.3 in second cavity 51.92, liquid accumulating device 51.3 includes
Hydrops funnel 51.31,51.31 lower end of liquid funnel connects the second shower tray 51.33 by liquid trap 51.32, in liquid trap 51.32
On be additionally provided with liquid booster pump 51.34.
The exhaust joint 51.71 on absorption tower 51 is arranged at the top of tower body, the connection of exhaust joint 51.71 first on absorption tower 51
55 one end of pipeline, 55 other end of first pipe are connected with the bottom of adsorption tanks 52, and adsorption tanks 52 include tank body, and tank body is interior under
It is supreme to be sequentially arranged with 4A molecular sieve 52.1, absorption activated carbon 52.2.
The top of adsorption tanks 52 connects respiratory box 53 by second pipe 56, and it is molten to be provided with calcium hydroxide in respiratory box 53
Liquid, second pipe 56 penetrate through respiratory box 53 and protrude into calcium hydroxide solution, and blow-down pipe 54, emptying are equipped on the upside of respiratory box 53
54 lower end of pipe is connected to respiratory box 53 casees.
Step 6: just desulfurization finishes the rubber in digester when the temperature in digester is down to 70 DEG C, it is drawn off simultaneously
Drying is sealed.
Embodiment 2
The raw material of softening agent can also be by weight in embodiment 1：8.3 parts of glycerol, 3.4 parts of propylene glycol, polysiloxanes polyoxy
Change 5.7 parts of alkene ether, 8.9 parts of isopropyl palmitate, 4.2 parts of laurene, 2.8 parts of alkyl phenol polyoxyethylene ether, eugenol 2.3
Part, 16.7 parts of octyl phenol disodium hydrogen phosphate, 5.3 parts of xylenol, 4.4 parts of benzene sulfonic acid sodium salt, 3.5 parts of cocoyl isethionate.
Embodiment 3
The raw material of softening agent can also be by weight in embodiment 1：9.6 parts of glycerol, 3.8 parts of propylene glycol, polysiloxanes polyoxy
Change 3.3 parts of alkene ether, 10.4 parts of isopropyl palmitate, 5.2 parts of laurene, 2.2 parts of alkyl phenol polyoxyethylene ether, eugenol 2.7
Part, 15.8 parts of octyl phenol disodium hydrogen phosphate, 6.8 parts of xylenol, 4.7 parts of benzene sulfonic acid sodium salt, 3.3 parts of cocoyl isethionate.
Embodiment 4
The raw material of softening agent can also be by weight in embodiment 1：10.4 parts of glycerol, 2.3 parts of propylene glycol, polysiloxanes polyoxy
Change 4.1 parts of alkene ether, 11.6 parts of isopropyl palmitate, 4.7 parts of laurene, 2.6 parts of alkyl phenol polyoxyethylene ether, eugenol 2.1
Part, 15.2 parts of octyl phenol disodium hydrogen phosphate, 6.2 parts of xylenol, 3.3 parts of benzene sulfonic acid sodium salt, 3.7 parts of cocoyl isethionate.
Claims (7)
1. a kind of method of reclaimed rubber desulfurization, it is characterised in that：Include the following steps：
Step 1: raw material to be desulfurization and softening agent are pressed 100:1 is uniformly mixed and stirred for, and obtains mixture；
Step 2: mixture is put into digester, and to being heated in digester, heat while stirring；
Step 3: keeping the temperature in digester constant, and control digester when temperature reaches 260-265 DEG C in digester
Interior pressure keeps the pressure of the pressure in digester in 1.3-1.5MPa；
Step 4: stopping keeping the temperature digester after 15-20min, natural cooling, when the temperature in digester is down to 100-105 DEG C
When, the mixed gas in digester is discharged；
Step 5: being vented after the completion of purification using emission-control equipment to the mixed gas purification of discharge；
Step 6: just desulfurization finishes the rubber in digester when the temperature in digester is down to 65-75 DEG C, it is drawn off simultaneously
Drying is sealed.
2. a kind of method of reclaimed rubber desulfurization according to claim 1, it is characterised in that：The raw material of softening agent is by weight
Part include：8-12 parts of glycerol, 2-4 parts of propylene glycol, 3-6 parts of polysiloxane polyoxyalkylene hydrocarbyl ether, 7-12 parts of isopropyl palmitate, the moon
Alkene 4-6 parts of osmanthus, 2-3 parts of alkyl phenol polyoxyethylene ether, 2-3 parts of eugenol, 14-17 parts of octyl phenol disodium hydrogen phosphate, xylenol 5-7
Part, 3-5 parts of benzene sulfonic acid sodium salt, 3-4 parts of cocoyl isethionate.
3. a kind of method of reclaimed rubber desulfurization according to claim 2, it is characterised in that：The raw material of softening agent is by weight
Part include：8.3 parts of glycerol, 3.4 parts of propylene glycol, 5.7 parts of polysiloxane polyoxyalkylene hydrocarbyl ether, 8.9 parts of isopropyl palmitate, laurel
4.2 parts of alkene, 2.8 parts of alkyl phenol polyoxyethylene ether, 2.3 parts of eugenol, 16.7 parts of octyl phenol disodium hydrogen phosphate, 5.3 parts of xylenol,
4.4 parts of benzene sulfonic acid sodium salt, 3.5 parts of cocoyl isethionate.
4. a kind of method of reclaimed rubber desulfurization according to claim 2, it is characterised in that：The raw material of softening agent is by weight
Part include：9.6 parts of glycerol, 3.8 parts of propylene glycol, 3.3 parts of polysiloxane polyoxyalkylene hydrocarbyl ether, isopropyl palmitate 10.4 part, month
5.2 parts of osmanthus alkene, 2.2 parts of alkyl phenol polyoxyethylene ether, 2.7 parts of eugenol, 15.8 parts of octyl phenol disodium hydrogen phosphate, xylenol 6.8
Part, 4.7 parts of benzene sulfonic acid sodium salt, 3.3 parts of cocoyl isethionate.
5. a kind of method of reclaimed rubber desulfurization according to claim 2, it is characterised in that：The raw material of the softening agent is pressed
Parts by weight include：10.4 parts of glycerol, 2.3 parts of propylene glycol, 4.1 parts of polysiloxane polyoxyalkylene hydrocarbyl ether, isopropyl palmitate 11.6
Part, 4.7 parts of laurene, 2.6 parts of alkyl phenol polyoxyethylene ether, 2.1 parts of eugenol, 15.2 parts of octyl phenol disodium hydrogen phosphate, diformazan
6.2 parts of phenol, 3.3 parts of benzene sulfonic acid sodium salt, 3.7 parts of cocoyl isethionate.
6. a kind of method of reclaimed rubber desulfurization according to claim 1, it is characterised in that：The emission-control equipment packet
Include absorption tower（51）, absorption tower（51）Pass through first pipe（55）Connect adsorption tanks（52）, adsorption tanks（52）Pass through second pipe
（56）Connect respiratory box（53）, in respiratory box（53）It is provided with calcium hydroxide solution, second pipe（56）Penetrate through respiratory box（53）
And protrude into calcium hydroxide solution, in respiratory box（53）Upside is equipped with blow-down pipe（54）, blow-down pipe（54）Lower end and respiratory box
（53）Case connection.
7. a kind of method of reclaimed rubber desulfurization according to claim 6, it is characterised in that：Absorption tower（51）Including tower
Body is successively arranged the first adsorption piece from the bottom to top in tower body（51.1）, the second adsorption piece（51.2）, demister（51.4）, the
One adsorption piece（51.1）The first cavity is formed between tower body inside bottom（51.91）, the second adsorption piece（51.2）It is inhaled with first
Attachment（51.1）Between form the second cavity（51.92）, demister（51.4）With the second adsorption piece（51.2）Between form third
Cavity（51.93）, demister（51.4）The 4th cavity is formed between tower body inside top（51.94）, on tower body be equipped with into
Gas connector（51.7）, exhaust joint（51.71）With waste liquid connector（51.72）, inlet suction port（51.7）, waste liquid connector（51.72）
With first cavity（51.91）It is connected, exhaust joint（51.71）With the 4th cavity（51.94）It is connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810782413.8A CN108841041A (en) | 2018-07-17 | 2018-07-17 | A kind of method of reclaimed rubber desulfurization |
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|---|---|---|---|
| CN201810782413.8A CN108841041A (en) | 2018-07-17 | 2018-07-17 | A kind of method of reclaimed rubber desulfurization |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341920A (en) * | 2013-06-26 | 2013-10-09 | 金轮橡胶（海门）有限公司 | Production process of fine rubber |
| CN104151660A (en) * | 2014-08-06 | 2014-11-19 | 普格三鑫环保资源科技利用开发有限公司 | Preparation method for odorless regenerated rubber |
| CN104289092A (en) * | 2014-09-24 | 2015-01-21 | 重庆市聚益橡胶制品有限公司 | Reclaimed rubber desulfurized tail gas purification device |
| CN107474346A (en) * | 2017-09-20 | 2017-12-15 | 安徽微威环保科技有限公司 | A kind of environment-friendly type regenerated rubber softening agent |
-
2018
- 2018-07-17 CN CN201810782413.8A patent/CN108841041A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341920A (en) * | 2013-06-26 | 2013-10-09 | 金轮橡胶（海门）有限公司 | Production process of fine rubber |
| CN104151660A (en) * | 2014-08-06 | 2014-11-19 | 普格三鑫环保资源科技利用开发有限公司 | Preparation method for odorless regenerated rubber |
| CN104289092A (en) * | 2014-09-24 | 2015-01-21 | 重庆市聚益橡胶制品有限公司 | Reclaimed rubber desulfurized tail gas purification device |
| CN107474346A (en) * | 2017-09-20 | 2017-12-15 | 安徽微威环保科技有限公司 | A kind of environment-friendly type regenerated rubber softening agent |
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Application publication date: 20181120 |