SU389067A1 - METHOD OF STABILIZATION OF DIVINILACETYLENE - Google Patents
METHOD OF STABILIZATION OF DIVINILACETYLENEInfo
- Publication number
- SU389067A1 SU389067A1 SU1681396A SU1681396A SU389067A1 SU 389067 A1 SU389067 A1 SU 389067A1 SU 1681396 A SU1681396 A SU 1681396A SU 1681396 A SU1681396 A SU 1681396A SU 389067 A1 SU389067 A1 SU 389067A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- stabilization
- divinilacetylene
- butyliminoxyl
- divinylacetylene
- weight
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 5
- 230000006641 stabilisation Effects 0.000 title description 2
- 238000011105 stabilization Methods 0.000 title description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- AUBDSFLQOBEOPX-UHFFFAOYSA-N hexa-1,5-dien-3-yne Chemical group C=CC#CC=C AUBDSFLQOBEOPX-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000003112 inhibitor Substances 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- WFYPICNXBKQZGB-UHFFFAOYSA-N butenyne Chemical group C=CC#C WFYPICNXBKQZGB-UHFFFAOYSA-N 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- -1 peroxide compounds Chemical class 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
1one
Изобретение относитс к способу стабилизации дивинилацет.илена против самопроизвольного окислени , что обеспечивает безопасность проведени технологических процессов, в частности процесса получени винилацетилена ..The invention relates to a method for stabilizing divinyl acetylene against spontaneous oxidation, which ensures the safety of technological processes, in particular the process of producing vinyl acetylene.
Див«нилацетилен - побочный продукт производства винилацетилена, на отдельных стади х которого (абсорбци -десорбци , ректификаци , регенераци абсорбента) дл предотвращени образовани взрывоопасных перекисных соединений ввод т ингибиторы, налример гетероциклические им.иноксильные соедииени , такие, как 2,2,6,6-тетраметил-4-оксопиперидин-1-оксил . Однако известные ингибиторы вл ютс дефицитными малодоступными продуктами.DIVYlacetylene is a by-product of the production of vinylacetylene, at some stages of which (absorption, desorption, rectification, regeneration of the absorbent), inhibitors are added to prevent the formation of explosive peroxide compounds, narymer heterocyclic named after kinetic compounds, such as 2.2.6, 6-tetramethyl-4-oxopiperidine-1-oxyl. However, known inhibitors are scarce, inaccessible products.
С целью расширени ассортимента инпибиторОВ предлагаетс в -качестве последнего использовать дитретичный бутилилипюксил в количестве 0,1 - 1% от веса дивинилацетилена.In order to expand the range of inpibitorov, it is proposed to use, as the latter, di-tertiary butyl-lipyuksil in an amount of 0.1-1% by weight of divinylacetylene.
Алифатический устойчивый иминоксильный радикал - дитретичный бутилиминоксил эффективно предотвращает окисление дивинилацетилена , а следовательно, и образование взрывоопасных нерекисиых соединений.The aliphatic stable iminoxyl radical, ditertiynum butyliminoxyl, effectively prevents the oxidation of divinylacetylene, and hence the formation of explosive non-oxidized compounds.
Кроме того, дитретичный бутилиминоксил способен частично предотвраш,ать полимеризацию дивинилацетилена, из которого получа2In addition, di-tertiary butyliminoxyl is capable of partially preventing polymerization of divinylacetylene, from which it was obtained
ют лак этиполь, примен ющийс в качестве защитных покрытий.Lac ethifol applied as a protective coating.
Пример 1. В 50%-ный раствор дивинилацетилена (ДВА) В бензоле (ксилоле, хлорбензоле ) ввод т 0,1% от веса ДВу д третичного бутилиминоксила и насыщают кислородом при 50°С и общем давлении в системе 680 мм рт. ст. (сумма парциальных давлений паров ДВА, растворител и кислорода). В течение 16 час указанное -количество ингибитора полностью предотвращает окисление ДВА.Example 1. In a 50% solution of divinylacetylene (TWO) In benzene (xylene, chlorobenzene), 0.1% of the weight of DVu of tertiary butyliminoxyl is introduced and saturated with oxygen at 50 ° C and a total pressure in the system of 680 mm Hg. Art. (the sum of the partial vapor pressures of TWO, solvent and oxygen). Within 16 hours, the indicated amount of inhibitor completely prevents the oxidation of TWO.
В тех же услови х указанный раствор без стабилизатора поглощает кислород со скоростью 9 см /час1г ДВА с ипдукциоиным периодом всего лишь 10 мин.Under the same conditions, the specified solution without a stabilizer absorbs oxygen at a rate of 9 cm / hour 1g TWO with an adduction period of only 10 minutes.
Пример 2. В услови х примера 1 провод т опыт и устанавливают, что введение 0,5% от веса ДВА дитретичного бутилиминоксила полпостью предотвращает окисление ДВА в течение 50 час.Example 2. Under the conditions of Example 1, the experiment was carried out and it was established that the introduction of 0.5% by weight of TWO di-tertiary butyliminoxyl completely prevented the oxidation of TWO for 50 hours.
Пример 3. В 50%-иый раствор ДВА в бензоле ввод т 0,1% от веса ДВА дитретичного бутилиминоксила, насыщают кислородом при и парциальном давлении кислорода 420 мм рт. ст.Example 3. A 50% solution of TWO in benzene is injected with 0.1% of the weight of TWO di-tertiary butyliminoxyl, saturated with oxygen at an oxygen partial pressure of 420 mm Hg. Art.
В течение 5 час образуетс 0,02% полимера ДВА.Within 5 hours, 0.02% polymer TWO is formed.
В контрольном опыте без введени стабилизатора в тех же услови х образуетс 0,2% полимера ДВА.In the control experiment, without the introduction of a stabilizer, under the same conditions, 0.2% polymer TWO is formed.
3434
Предмет изобретени ки, отличающийс тем, что, с целью расширеСпособ стабилизации дивинилацетилена пу- следнего используют дитретичный бутилимитем введени .ингибитора в .готовый .продукт нокоил в кол.ичестве 0,1-1% от веса дивинил .или в .раствор продукта в органическом рас- 5 ацетилена, творителе -в услови х хранени и переработзаме .The subject matter of the invention, characterized in that, in order to expand the method of stabilization of divinylacetylene, the latter uses a ditertillum injection of the inhibitor into the prepared product. Nokoyl in a quantity of 0.1-1% by weight of divinyl. Or a solution of the product in an organic 5 acetylene, solvent, under storage conditions and processing.
ни ассортимента ингибиторов, в качестве поno range of inhibitors, as by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1681396A SU389067A1 (en) | 1971-07-08 | 1971-07-08 | METHOD OF STABILIZATION OF DIVINILACETYLENE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1681396A SU389067A1 (en) | 1971-07-08 | 1971-07-08 | METHOD OF STABILIZATION OF DIVINILACETYLENE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU389067A1 true SU389067A1 (en) | 1973-07-05 |
Family
ID=20482954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1681396A SU389067A1 (en) | 1971-07-08 | 1971-07-08 | METHOD OF STABILIZATION OF DIVINILACETYLENE |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU389067A1 (en) |
-
1971
- 1971-07-08 SU SU1681396A patent/SU389067A1/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS54154707A (en) | Telomerization of tetrafluoroethylene | |
| SU389067A1 (en) | METHOD OF STABILIZATION OF DIVINILACETYLENE | |
| ES445675A1 (en) | Apparatus for the manufacture of vinyl chloride polymers | |
| KR890009991A (en) | Continuous process including recycle flow treatment to produce high impact polystyrene | |
| Capon et al. | Mixed ethyl bromide and ethyl chloride pyrolyses | |
| US3015677A (en) | Process for the stabilization of chloroprene | |
| DE1944233A1 (en) | Process for stabilizing butadiene | |
| US2907801A (en) | Inhibiting polymer precipitation in acetylene purification process | |
| Armstrong et al. | Mechanisms of antioxidant action: the pro-oxidant stage in the function of thiodipropionate esters as antioxidants | |
| US4061858A (en) | Purifying acrylonitrile for the manufacture of acrylonitrile polymers | |
| US3200087A (en) | Polymerization of carbodimides to solid polymers | |
| US2412504A (en) | Treating styrene and other monomers used in polymerization processes | |
| US3048639A (en) | Process for stabilizing chloroprene | |
| US3049408A (en) | Stabilization of hydrogen cyanide | |
| SU356271A1 (en) | METHOD OF STABILIZATION OF DIVINILACETYLENE | |
| US2461735A (en) | Process of treating interpolymers of styrene, allylic fumarate, and allylic alcohol | |
| ES361365A1 (en) | A PROCEDURE FOR THE STABILIZATION OF METHYLCLOROFORM. | |
| SU386886A1 (en) | METHOD OF STABILIZATION OF DIVINILACETYLENE | |
| US2420862A (en) | Stabilization of vinyl aromatic compounds with gaseous diolefins or acetylenes | |
| US3057912A (en) | Production of trimeric lower alkyl ketenes | |
| GB875558A (en) | Process for the production of eupolyoxymethylenes | |
| SU386910A1 (en) | METHOD FOR OBTAINING R-CHLOROCRYLIC ACID | |
| SU149218A1 (en) | Method of stabilizing polyolefins | |
| US3192268A (en) | Stabilized formaldehyde solutions | |
| SU138040A1 (en) | Ethylene Polymerization Process |