CN105523882A - Method for inhibiting explosive polymerization of chloroisopentene and device thereof - Google Patents
Method for inhibiting explosive polymerization of chloroisopentene and device thereof Download PDFInfo
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- CN105523882A CN105523882A CN201510940264.XA CN201510940264A CN105523882A CN 105523882 A CN105523882 A CN 105523882A CN 201510940264 A CN201510940264 A CN 201510940264A CN 105523882 A CN105523882 A CN 105523882A
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- CN
- China
- Prior art keywords
- chloroisoamylene
- isoprene
- chloroisopentene
- implode
- addition reaction
- 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
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000006116 polymerization reaction Methods 0.000 title abstract description 8
- MXVSJNLRVLKAOG-UHFFFAOYSA-N 1-chloro-3-methylbut-1-ene Chemical compound CC(C)C=CCl MXVSJNLRVLKAOG-UHFFFAOYSA-N 0.000 title abstract 5
- 239000002360 explosive Substances 0.000 title abstract 3
- 230000002401 inhibitory effect Effects 0.000 title abstract 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims abstract description 74
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000007259 addition reaction Methods 0.000 claims abstract description 24
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims abstract description 23
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims abstract description 23
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000001301 oxygen Substances 0.000 claims abstract description 18
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 42
- 229910052742 iron Inorganic materials 0.000 claims description 24
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- 230000002045 lasting effect Effects 0.000 claims description 2
- 230000001629 suppression Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 23
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000003786 synthesis reaction Methods 0.000 abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- -1 dichloro esbiothrin Chemical compound 0.000 description 7
- 239000007789 gas Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000012295 chemical reaction liquid Substances 0.000 description 4
- 239000000543 intermediate Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- HNVRRHSXBLFLIG-UHFFFAOYSA-N 3-hydroxy-3-methylbut-1-ene Chemical compound CC(C)(O)C=C HNVRRHSXBLFLIG-UHFFFAOYSA-N 0.000 description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 125000004494 ethyl ester group Chemical group 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- VBPSVYDSYVJIPX-UHFFFAOYSA-N methylbutenol Natural products CCC=C(C)O VBPSVYDSYVJIPX-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- ASUAYTHWZCLXAN-UHFFFAOYSA-N prenol Chemical compound CC(C)=CCO ASUAYTHWZCLXAN-UHFFFAOYSA-N 0.000 description 2
- UHEPJGULSIKKTP-UHFFFAOYSA-N sulcatone Chemical compound CC(C)=CCCC(C)=O UHEPJGULSIKKTP-UHFFFAOYSA-N 0.000 description 2
- FPIPGXGPPPQFEQ-UHFFFAOYSA-N 13-cis retinol Natural products OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-UHFFFAOYSA-N 0.000 description 1
- WIQMOFSSJHPXIK-UHFFFAOYSA-N 2,2-dichloro-3-methylbutane Chemical compound CC(C)C(C)(Cl)Cl WIQMOFSSJHPXIK-UHFFFAOYSA-N 0.000 description 1
- 235000007516 Chrysanthemum Nutrition 0.000 description 1
- 244000189548 Chrysanthemum x morifolium Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 description 1
- FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 description 1
- 229960001901 bioallethrin Drugs 0.000 description 1
- 235000021466 carotenoid Nutrition 0.000 description 1
- 150000001747 carotenoids Chemical class 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- MKLKDUHMZCIBSJ-UHFFFAOYSA-N methyl 3,3-dimethylpent-4-enoate Chemical compound COC(=O)CC(C)(C)C=C MKLKDUHMZCIBSJ-UHFFFAOYSA-N 0.000 description 1
- IUGYQRQAERSCNH-UHFFFAOYSA-M pivalate Chemical compound CC(C)(C)C([O-])=O IUGYQRQAERSCNH-UHFFFAOYSA-M 0.000 description 1
- 239000002728 pyrethroid Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/07—Preparation of halogenated hydrocarbons by addition of hydrogen halides
- C07C17/08—Preparation of halogenated hydrocarbons by addition of hydrogen halides to unsaturated hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/06—Filters making use of electricity or magnetism
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to a method for inhibiting explosive polymerization of chloroisopentene and a device thereof, and belongs to the technical field of water reducer synthesis. When isoprene and hydrogen chloride are subjected to an addition reaction to generate chloroisopentene, a few rust doped in the raw material isoprene is removed by the use of a magnetic filter before isoprene enters a reactor, N2 is used for replacement in the reactor until oxygen content in the system is 10-100 ppm, pressure is kept at 0.02-1.0 bar, and then feeding continues to carry out the reaction. By the above technical scheme, explosive polymerization of chloroisopentene can be effectively inhibited during the addition reaction between isoprene and hydrogen chloride for generation of chloroisopentene, the addition reaction is carried out smoothly, and rapid rising of temperature and pressure is eliminated.
Description
Technical field
The present invention relates to a kind of method and the device thereof that suppress chloroisoamylene implode, in particular to preparing in chloroisoamylene process carrying out addition reaction by isoprene and hydrogenchloride, remove a small amount of iron rust of raw material isoprene entrained with by arranging a magnetic filter at reactor inlet place and keep reactor to be that malleation to carry out in guarantee system oxygen level at below 100ppm, realizing the method suppressing chloroisoamylene implode.
Background technology
Chloroisoamylene is a kind of very useful fine-chemical intermediate raw material, and it can obtain the mixture of 3-M2BOL (prenol) and 2-M3BOL (methyl butenol) through direct hydrolysis reaction.Prenol is mainly used in and original trimethyl acetate or ethyl ester Reactive Synthesis 3,3-dimethyl-4-pentenoic acid methyl ester or ethyl ester, and it is the important source material preparing pyrethroid key intermediate high-cis dichloro esbiothrin.Methyl butenol is then mainly used as the raw material producing Sulcatone, can be used for synthesis DV-chrysanthemumic acid or chrysanthemum monocarboxylate, different vegetable alcohol, vitamin A, carotenoid, terpenes series fragrance intermediates etc. in addition.
Chloroisoamylene can be obtained by addition reaction by hydrogen chloride gas and isoprene.The addition reaction of hydrogenchloride and isoprene generates 3-methyl-2-butene-1-chlorine and 3-methyl-2-butene-2-chlorine simultaneously, and both are referred to as chloroisoamylene.
From existing technique, usual addition reaction hydrogen chloride gas is excessive adding, and this addition reaction is thermopositive reaction, temperature of reaction need be controlled below 5 DEG C, controls the generation of dichloro-iso-pentane, improves the yield of chloroisoamylene.In hydrogenchloride and isoprene addition process, the content of adduct chloroisoamylene raises gradually, after chloroisoamylene content acquires a certain degree, very easily there is the rapid polymerization of chloroisoamylene under certain conditions, the heat produced makes the temperature and pressure of reactor sharply rise, cause runaway reaction, security incident occurs.
Based on this, make subject application.
Summary of the invention
The invention provides a kind of method and the device thereof that suppress chloroisoamylene implode, in particular to preparing in chloroisoamylene process carrying out addition reaction by isoprene and hydrogenchloride, remove a small amount of iron rust of raw material isoprene entrained with by arranging a magnetic filter at reactor inlet place and keep reactor to be that malleation to carry out in guarantee system oxygen level at below 100ppm, realizing the method suppressing chloroisoamylene implode.
For achieving the above object, the technical scheme taked of the present invention is as follows:
Suppress a method for chloroisoamylene implode, when isoprene and hydrogenchloride generate chloroisoamylene through addition reaction, raw material isoprene removes a small amount of iron rust of its entrained with before entering the reactor with magnetic filter, reactor N
2replace to oxygen level in system at 10 ~ 100ppm, and keep pressure to be after 0.02 ~ 1.0bar, more lasting charging is reacted.The mol ratio of isoprene and hydrogenchloride is 1:0.95, and temperature is-10 ~ 5 DEG C, and stir speed (S.S.) is 60 revs/min.The transformation efficiency of general isoprene is X%, and the selectivity of chloroisoamylene is X%.
Further, as preferably;
Described raw material isoprene removes a small amount of iron rust of its entrained with before entering the reactor with magnetic filter; In reactor, oxygen level is preferably 30 ~ 80ppm; Pressure is preferably 0.03 ~ 0.5bar.
Simultaneously, in the application, suppress in the method for chloroisoamylene implode for removing the magnetic filter that iron rust adopts, its installation site is on isoprene feeding pipe, the structure of this magnetic filter is made up of shell, strut member, bar magnet, bar magnet arranges in the shape of a spiral, can be connected in series 2 or multiple according to iron rust removal effect.
Key of the present invention is that raw material isoprene removes a small amount of iron rust of its entrained with before entering the reactor with magnetic filter, reactor N when isoprene and hydrogenchloride generate chloroisoamylene through addition reaction
2displacement is to oxygen level in system at 10 ~ 100ppm, and pressure is 0.02 ~ 1.0bar, and when keeping temperature to be-10 ~ 5 DEG C, can effectively suppress chloroisoamylene implode, addition reaction is steadily carried out, eliminates the zooming phenomenon of temperature and pressure.
Contriver is found by great many of experiments, carrying out addition at isoprene and hydrogenchloride generates in chloroisoamylene process, iron ion contained in reaction system and the implode of oxygen level and chloroisoamylene have relation closely, infer after a small amount of iron rust enters reaction system with raw material, be converted into iron ion in acid condition, by generating with oxygen reaction, the effective catalyzer of tool is polymerized to chloroisoamylene again, after in reaction system, chloroisoamylene concentration reaches a certain degree, the violent polymerization of catalysis chloroisoamylene.The prerequisite generating polymerizing catalyst owing to there is iron ion and oxygen level in reaction system, as long as therefore raw material isoprene is removed before entering the reactor a small amount of iron rust of its entrained with magnetic filter, and with nitrogen by after addition reaction liquid and air exclusion, the polymerization of addition reaction liquid just effectively can be controlled.
Advantage of the present invention is that raw material isoprene removes a small amount of iron rust of its entrained with before entering the reactor with magnetic filter, reactor N when isoprene and hydrogenchloride generate chloroisoamylene through addition reaction
2displacement is to oxygen level in system at 10 ~ 100ppm, and pressure is 0.02 ~ 1.0bar, and when keeping temperature to be-10 ~ 5 DEG C, can effectively suppress chloroisoamylene implode, addition reaction is steadily carried out, eliminates the zooming phenomenon of temperature and pressure.
Below by embodiment, details of the present invention is further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of magnetic filter in the present invention.
Number in the figure: 1. flange shell; 2. pipe fitting; 3. strut member; 4. bar magnet.
Embodiment
Because distinguishing characteristics of the present invention is mainly that raw material isoprene removes a small amount of iron rust of its entrained with before entering the reactor with magnetic filter, reactor N
2displacement is to oxygen level in system at 10 ~ 100ppm, and pressure is 0.02 ~ 1.0bar, and other parts are then substantially identical with prior art, and therefore embodiment will focus on enumerating of reaction experiment data.In an embodiment, isoprene transformation efficiency and chloroisoamylene selectivity are calculated by following formula.
Wherein, composition graphs 1, magnetic filter is made up of flange shell 1, pipe fitting 2, strut member 3 and bar magnet 4, and in magnetic filter, bar magnet 4 arranges in the shape of a spiral, and the pressure-losses is little.
[embodiment 1]
Addition reaction is carried out in 1000 milliliters of glass there-necked flasks with mechanical stirring and refrigerating unit.Isoprene 500 grams not containing iron rust is added in there-necked flask, uses N
2displacement is to oxygen level in system at 10 ~ 100ppm, and start and to stir and that reaction solution is cooled to is temperature required, then at such a temperature anhydrous hydrogen chloride gas is passed into reactor by bottom, maintenance reactor pressure is 0.02bar, enters in reactor to stop air.Because addition reaction is exothermic process, control hydrogen chloride gas feed rate to maintain temperature of reaction is-10 ~ 5 DEG C.Other reaction conditions is: the mol ratio of isoprene and hydrogenchloride is 1:0.95, and stir speed (S.S.) is 60 revs/min.
Along with hydrogenchloride continue pass into, isoprene is converted into chloroisoamylene, and after the hydrogenchloride of metering has added, continue stirring reaction 30 minutes, sampling utilizes GC to analyze, and the transformation efficiency calculating isoprene is the selectivity of X% and chloroisoamylene is X%.Addition reaction is steadily carried out, and implode phenomenon does not occur.
[comparative example]
Addition reaction is carried out in 1000 milliliters of glass there-necked flasks with mechanical stirring and refrigerating unit.The isoprene 500 grams and 0.1 gram of iron rust that do not contain iron rust are added in there-necked flask, at ambient pressure, starts and stir and make reaction solution be cooled to temperature required-10 ~ 5 DEG C, then at such a temperature anhydrous hydrogen chloride gas is passed into reactor by bottom.Other reaction conditions is: the mol ratio of isoprene and hydrogenchloride is 1:0.95, and stir speed (S.S.) is 60 revs/min.
Passing into the hydrogenchloride initial stage, reacting controlled, now chloroisoamylene content is X%.Along with hydrogenchloride continue add, temperature of reaction starts to rise to fast, and material sprays from reaction system.
Carrying out addition at isoprene and hydrogenchloride generates in chloroisoamylene process, iron ion contained in reaction system and the implode of oxygen level and chloroisoamylene have relation closely, infer after a small amount of iron rust enters reaction system with raw material, be converted into iron ion in acid condition, by generating with oxygen reaction, the effective catalyzer of tool is polymerized to chloroisoamylene again, after in reaction system, chloroisoamylene concentration reaches a certain degree, the violent polymerization of catalysis chloroisoamylene.The prerequisite generating polymerizing catalyst owing to there is iron ion and oxygen level in reaction system, as long as therefore raw material isoprene is removed before entering the reactor a small amount of iron rust of its entrained with magnetic filter, and with nitrogen by after addition reaction liquid and air exclusion, the polymerization of addition reaction liquid just effectively can be controlled.
In the above-described embodiments, raw material isoprene removes a small amount of iron rust of its entrained with before entering the reactor with magnetic filter, reactor N
2displacement is to oxygen level in system at 10 ~ 100ppm, and pressure is 0.02 ~ 1.0bar, and when keeping temperature to be-10 ~ 5 DEG C, can effectively suppress chloroisoamylene implode, addition reaction is steadily carried out, eliminates the zooming phenomenon of temperature and pressure.
Above content is the further description done provided technical scheme in conjunction with the preferred embodiment of the present invention; can not assert that the present invention specifically implements to be confined to these explanations above-mentioned; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (5)
1. suppress a method for chloroisoamylene implode, it is characterized in that: when isoprene and hydrogenchloride generate chloroisoamylene through addition reaction, raw material isoprene removes the iron rust of its entrained with, and uses N
2displacement at 10 ~ 100ppm, keeps pressure to be after 0.02 ~ 1.0bar to oxygen level in system, more lasting charging is reacted, and the mol ratio of isoprene and hydrogenchloride is 1:0.95, and temperature is-10 ~ 5 DEG C, and stir speed (S.S.) is 60 revs/min.
2. a kind of method suppressing chloroisoamylene implode as claimed in claim 1, is characterized in that: N
2after displacement, in described system, oxygen level is at 30 ~ 80ppm.
3. a kind of method suppressing chloroisoamylene implode as claimed in claim 1, is characterized in that: N
2after displacement, described pressure is 0.03 ~ 0.05bar.
4. in the method for the suppression chloroisoamylene implode as described in any one of claim 1-3 the equipment that adopts, it is characterized in that: using magnetic filter as primary device, the structure of described magnetic filter is made up of flange shell, pipe fitting, strut member, bar magnet, and bar magnet is arranged in pipe fitting in the shape of a spiral.
5. a kind of equipment suppressing chloroisoamylene quick-fried as claimed in claim 4, is characterized in that: described bar magnet is connected in series 2 or multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940264.XA CN105523882B (en) | 2015-12-16 | 2015-12-16 | A kind of method and its device for inhibiting chloroisoamylene implode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940264.XA CN105523882B (en) | 2015-12-16 | 2015-12-16 | A kind of method and its device for inhibiting chloroisoamylene implode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105523882A true CN105523882A (en) | 2016-04-27 |
| CN105523882B CN105523882B (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510940264.XA Active CN105523882B (en) | 2015-12-16 | 2015-12-16 | A kind of method and its device for inhibiting chloroisoamylene implode |
Country Status (1)
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50160207A (en) * | 1974-06-14 | 1975-12-25 | ||
| EP0679438A1 (en) * | 1994-04-28 | 1995-11-02 | Wacker-Chemie GmbH | Catalyst for the preparation of 1-chloro-3-methyl-2-butene |
| CN101000327A (en) * | 2006-12-22 | 2007-07-18 | 上海博爱化工有限公司 | Analysing method for investigating content of chlorinated isopentene product component |
| CN201807237U (en) * | 2010-06-10 | 2011-04-27 | 龙口联合化学有限公司 | Magnetic filter |
| CN102367219A (en) * | 2011-07-19 | 2012-03-07 | 赵明江 | Preparation method of chloroisopentene |
| CN102381940A (en) * | 2011-07-19 | 2012-03-21 | 赵明江 | Production method of C5 enol |
| CN102584519A (en) * | 2012-01-17 | 2012-07-18 | 山东高新润农化学有限公司 | Preparation method of chloroisoamylene |
| CN102924224A (en) * | 2012-11-02 | 2013-02-13 | 南通天泽化工有限公司 | Preparation technique of 1-chloro-3-methyl-2-butene |
-
2015
- 2015-12-16 CN CN201510940264.XA patent/CN105523882B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50160207A (en) * | 1974-06-14 | 1975-12-25 | ||
| EP0679438A1 (en) * | 1994-04-28 | 1995-11-02 | Wacker-Chemie GmbH | Catalyst for the preparation of 1-chloro-3-methyl-2-butene |
| CN101000327A (en) * | 2006-12-22 | 2007-07-18 | 上海博爱化工有限公司 | Analysing method for investigating content of chlorinated isopentene product component |
| CN201807237U (en) * | 2010-06-10 | 2011-04-27 | 龙口联合化学有限公司 | Magnetic filter |
| CN102367219A (en) * | 2011-07-19 | 2012-03-07 | 赵明江 | Preparation method of chloroisopentene |
| CN102381940A (en) * | 2011-07-19 | 2012-03-21 | 赵明江 | Production method of C5 enol |
| CN102584519A (en) * | 2012-01-17 | 2012-07-18 | 山东高新润农化学有限公司 | Preparation method of chloroisoamylene |
| CN102924224A (en) * | 2012-11-02 | 2013-02-13 | 南通天泽化工有限公司 | Preparation technique of 1-chloro-3-methyl-2-butene |
Non-Patent Citations (1)
| Title |
|---|
| 邵锡宸: "氯代异戊烯的异构化及其与分馏装置材料的关系", 《化学世界》 * |
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| CN105523882B (en) | 2018-07-06 |
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Denomination of invention: A Method and Device for Inhibiting Explosion Polymerization of Chloroisopentene Effective date of registration: 20230325 Granted publication date: 20180706 Pledgee: Zhejiang Shaoxing Hengxin Rural Commercial Bank Co.,Ltd. Mashan sub branch Pledgor: SHAOXING MINGYE CHEMICAL FIBER Co.,Ltd. Registration number: Y2023980035873 |
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Granted publication date: 20180706 Pledgee: Zhejiang Shaoxing Hengxin Rural Commercial Bank Co.,Ltd. Mashan sub branch Pledgor: SHAOXING MINGYE CHEMICAL FIBER Co.,Ltd. Registration number: Y2023980035873 |
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Denomination of invention: A method and device for inhibiting the explosion polymerization of chlorinated isopentene Granted publication date: 20180706 Pledgee: Zhejiang Shaoxing Hengxin Rural Commercial Bank Co.,Ltd. Mashan sub branch Pledgor: SHAOXING MINGYE CHEMICAL FIBER Co.,Ltd. Registration number: Y2024980010370 |
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