CN106967192B - A kind of technique of calcium carbide production PVC - Google Patents
A kind of technique of calcium carbide production PVC Download PDFInfo
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- CN106967192B CN106967192B CN201710209232.1A CN201710209232A CN106967192B CN 106967192 B CN106967192 B CN 106967192B CN 201710209232 A CN201710209232 A CN 201710209232A CN 106967192 B CN106967192 B CN 106967192B
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- acetylene
- calcium carbide
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- 238000000034 method Methods 0.000 title claims abstract description 55
- 239000005997 Calcium carbide Substances 0.000 title claims abstract description 36
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims abstract description 67
- 230000008569 process Effects 0.000 claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 239000002351 wastewater Substances 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 25
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000002002 slurry Substances 0.000 claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims abstract description 7
- 239000002893 slag Substances 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 33
- 239000004800 polyvinyl chloride Substances 0.000 claims description 25
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 25
- 238000006477 desulfuration reaction Methods 0.000 claims description 11
- 230000023556 desulfurization Effects 0.000 claims description 11
- 239000004568 cement Substances 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 5
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 5
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 5
- 238000007259 addition reaction Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000012267 brine Substances 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 3
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000006228 supernatant Substances 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 230000003009 desulfurizing effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- WHBHBVVOGNECLV-OBQKJFGGSA-N 11-deoxycortisol Chemical compound O=C1CC[C@]2(C)[C@H]3CC[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 WHBHBVVOGNECLV-OBQKJFGGSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241001062009 Indigofera Species 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001345 alkine derivatives Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F114/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
- C08F114/02—Monomers containing chlorine
- C08F114/04—Monomers containing two carbon atoms
- C08F114/06—Vinyl chloride
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Treating Waste Gases (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses the techniques of calcium carbide production PVC a kind of, it is characterized in that the carbide slag slurries overflow come out from acetylene generator is entered in settling tank to settle, slurry discharge in bottom separately uses it for anything else, and upper clear supernate returns in acetylene generator after cooling down and prepares acetylene with reaction water as calcium carbide；It is returned in acetylene generator for acetylene gas dedusting waste water after cooling and prepares acetylene with reaction water as calcium carbide；The hot water come out from converter shell enters after the heat that vapor absorption tower top absorption hot water storgae evaporates after heat exchanger exchanges heat from hot water storgae is flowed into, and heat exchanger uses in other process.The present invention adequately achieves the effective use of water resource, while avoiding environmental pollution caused by discharge of wastewater, and the conversion heat of vinyl chloride is rationally utilized, energy-saving.
Description
Technical field
The present invention relates to the techniques of calcium carbide production PVC a kind of, belong to polymer material science and field of engineering technology.
Background technique
Polyvinyl chloride, abbreviation PVC are the thermoplastic resins being polymerized under initiator effect by vinyl chloride, are chloroethenes
The homopolymer of alkene, physical appearance are white powder, and nontoxic, odorless, chemical stability is very high, have good plasticity.It is poly-
Vinyl chloride resin is the maximum kind of dosage in five big resins for universal use, is widely used in building, automobile, high-speed rail, ship, aviation boat
The numerous areas such as it and defence and military have very important status in national economy and social development.It generallys use at present
The technique for preparing PVC there are two types of, i.e. carbide acetylene method and petroleum process for oxychlorination of ethylene.
Currently, global overwhelming majority of countries is all made of petroleum process for oxychlorination of ethylene to prepare PVC, China is due to by " oil-poor "
The limitation of status makes ethylene process route Arrested Development, and China Midwest indigo plant carbon, lime stone, rock salt reserves are larger in addition, using electricity
Stone acetylene method technique locality is founded the factory advantage of lower cost, so domestic many newly-built and enlarging PVC engineerings are still mostly calcium carbide second
Alkynes method technique.Currently, China accounts for the 80% of total output using the PVC of carbide acetylene method production.
Carbide acetylene method prepare PVC process route be with calcium carbide reacted with water generation acetylene gas, acetylene again with hydrogen chloride
Addition reaction generates vinyl chloride (VCM), and finally polymerization obtains PVC.And meeting in this preparation section of acetylene is generated in calcium carbide and water
A large amount of carbide slag slurries are generated, after machinery press dry, the alternative lime comprehensive utilization of solid carbide slag is in highway construction etc., clear liquid
Partially (supernatant) alkalinity is high and the chemical components such as sulfur-bearing, phosphorus, direct emission can cause large effect, while acetylene to environment
Gas needs again with hcl reaction after the processes such as dedusting, desulfurization, purification, these processes can generate a large amount of waste water, traditional
Technique is by its direct emission, and still containing the great substance of environmental pollutions such as sulphur, phosphorus in these waste water, therefore traditional handicraft
The processing of middle waste water not only causes the waste of great lot of water resources, but also has seriously polluted the environment.It converts and closes in vinyl chloride simultaneously
At link, acetylene and hydrogen chloride complete the synthesis of vinyl chloride in converter, and the heat that conversion generates passes through converter shell
Hot water is taken away, and generates vaporization after importing hot water storgae, not only causes the waste of heat, simultaneously because the hot water temperature imported is excessively high
Evaporate hot water storgae excessively, to considerably increase the rate of water make-up of hot water storgae desalted water.
Summary of the invention
In view of this, adequately achieving effective benefit of water resource the present invention provides the technique of calcium carbide production PVC a kind of
With, while environmental pollution caused by discharge of wastewater is avoided, and the conversion heat of vinyl chloride is rationally utilized, it is energy-saving.
In order to solve the above technical problems, the technical scheme is that producing the technique of PVC, including electricity using a kind of calcium carbide
Shi Yushui reacts in acetylene generator generates acetylene gas, and acetylene gas successively enters after dedusting cooling, desulfurization, peace and quiet process
Converter generates thick vinyl chloride gas with hydrogen chloride gas addition reaction, thick vinyl chloride gas through demercuration, recovery acid, alkali cleaning,
Smart vinyl chloride gas is obtained after rectifying, then smart vinyl chloride gas, which enters in polymeric kettle, occurs polymerization reaction and obtains polyvinyl chloride,
It is characterized by: entering in settling tank to be settled from the carbide slag slurries overflow that acetylene generator comes out, slurry discharge in bottom is separately made
It is used, and upper clear supernate returns in acetylene generator after cooling down and prepares acetylene with reaction water as calcium carbide；For acetylene
Gas dedusting waste water after cooling, which returns in acetylene generator, prepares acetylene with reaction water as calcium carbide；It is come out from converter shell
Hot water through heat exchanger exchange heat after enter vapor absorption tower top absorb hot water storgae evaporation heat after from flow into hot water storgae,
Heat exchanger uses in other process.
Further, the waste water that the acetylene gas desulfurization process generates, which returns in acetylene generator, prepares acetylene as calcium carbide
With reaction water.
Further, the waste water that the peace and quiet process of the acetylene gas generates, which returns in acetylene generator, prepares acetylene as calcium carbide
With reaction water.
Further, waste water a part that the peace and quiet process of the acetylene gas generates returns to dedusting cooling process and desulfurization process
As dedusting cooling water and desulfurization water, a part returns in acetylene generator and prepares acetylene with reaction water as calcium carbide.
Further, the envelope of machine used in all process steps waste water can be used as the supplement use that calcium carbide prepares acetylene reaction water
Water.
Further, bottom slurry discharge, which separately uses it for anything else, refers to and is sent to cement plant cement.
Further, the mode of the upper clear supernate cooling down is cooling tower air cooling, avoids water is cooling from introducing more
Water resource.
Further, the heat exchanger uses the primary brine for referring to that heat exchanger is used in chlorine industry in other process
Heat is provided in preparatory phase for it.
Compared with prior art, the present invention is reasonably recycled waste water caused by acetylene is produced, no
Needing again additional industry water is that can guarantee being normally carried out for reaction, improves the utilization rate of water resource, avoids waste water outlet to ring
It is polluted caused by border, while the heat of converter shell hot water is used to other needs through heat exchanger in vinyl chloride preparation link to make
After the process of the mount of using heat, hot water enter vapor absorption tower top with absorb hot water storgae flash distillation steam after from flow into hot water storgae, this
Sample both ensure that the temperature of hot water storgae met the temperature requirement (90~100 DEG C) of conversion process, also avoid the excess of hot water storgae
Evaporation, to achieve the purpose that energy-saving.
Detailed description of the invention
Fig. 1 is the schematic diagram of present invention process process.
Marginal data:
1, acetylene generator；2, dedusting cooling tower；3, desulfurizing tower；4, gas holder；5, peace and quiet tower；6, converter；7, mercury eliminator；
8, water scrubber；9, caustic wash tower；10, rectifier unit；11, polymeric kettle；12. centrifuge；13, drier；101, settling tank；102, wind
Cold cooling tower；601, heat exchanger；602, vapor absorption tower；603, hot water storgae.
Specific embodiment
It is with reference to the accompanying drawing and specific real in order to make those skilled in the art more fully understand technical solution of the present invention
Applying mode, the present invention is described in further detail.
The present invention provides the techniques of calcium carbide production PVC a kind of, and referring to Fig. 1, calcium carbide reacts in acetylene generator 1 with water
Generate acetylene gas, acetylene gas successively after dedusting cooling tower 2, desulfurizing tower 3, gas holder 4, peace and quiet tower 5 enter converter 6 in with
Hydrogen chloride gas addition reaction generates thick vinyl chloride gas, and thick vinyl chloride gas is successively recycled through 7 demercuration of mercury eliminator, water scrubber 8
Smart vinyl chloride gas is obtained after acid, 10 rectifying of 9 alkali cleaning of caustic wash tower and rectifier unit, then smart vinyl chloride gas enters polymeric kettle 11
Interior generation polymerization reaction obtains polyvinyl chloride monomer, obtains finished product PVC, this hair after the separation of centrifuge 12, drier 13 are dry
It is bright be characterized in being that the carbide slag slurries overflow for coming out acetylene generator 1 enters and settled in settling tank 101 after, bottom slurry
Cement plant cement is sent in discharge, and upper clear supernate is returned in acetylene generator 1 after air-cooled 102 cooling down of cooling tower as electricity
Standby acetylene reaction water made of stones；The waste water that dedusting cooling tower 2 is discharged simultaneously, which returns, is used as reaction water in acetylene generator 1.
Supernatant and dedusting cooling waste water are recycled and are reacted instead of industry water and calcium carbide by the present invention, in order to avoid reaction water
The waste water of the waste water of desulfurizing tower 3 and peace and quiet tower 5 is further also returned to conduct in acetylene generator 1 by the deficiency of amount, the present invention
Reaction water, while the waste water that peace and quiet tower 5 generates is the useless liquor natrii hypochloritis of strong oxidizer, it can be by S2-It is heavy to be converted into simple substance S
The waste water for forming sediment, therefore peace and quiet tower 5 being added in supernatant can reduce the concentration of sulphur in supernatant, avoid sulphion in supernatant
Enrichment, which generates bad smell and slows down acetylene, instead gives birth to reaction rate.And in order to avoid the waste water of addition is anti-beyond the anti-raw device of acetylene
Using water, waste water a part that peace and quiet tower 5 generates can return to dedusting cooling process and desulfurization process as dedusting cooling water
With desulfurization water, a part returns in acetylene generator and prepares acetylene with reaction water as calcium carbide.Further, all process steps
Used in machine envelope waste water can be used as calcium carbide and prepare acetylene with the supplement water of reaction water.
Another feature of the present invention is will be laggard from the hot water feeding exchange heat of heat exchanger 601 of 6 shell of converter out
Enter after 602 top of vapor absorption tower absorbs the heat that hot water storgae 603 evaporates and flow into hot water storgae 603 certainly, both ensure that hot water in this way
The temperature of slot meets the temperature requirement (90~100 DEG C) of conversion process, the excessive evaporation of hot water storgae is also avoided, to reach section
The purpose that can be lowered consumption.Heat is provided in the primary brine preparatory phase that heat exchanger 601 can be used in chlorine industry for it.
The above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
Limitation of the invention, protection scope of the present invention should be defined by the scope defined by the claims..For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change
It also should be regarded as protection scope of the present invention into retouching.
Claims (7)
1. the technique of calcium carbide production PVC a kind of, including calcium carbide react generation acetylene gas with water in acetylene generator, acetylene gas according to
It is secondary to enter converter and the thick vinyl chloride gas of hydrogen chloride gas addition reaction generation after dedusting cooling, desulfurization, peace and quiet process,
Thick vinyl chloride gas obtains smart vinyl chloride gas after demercuration, recovery acid, alkali cleaning, rectifying, and then smart vinyl chloride gas enters poly-
It closes generation polymerization reaction in kettle and obtains polyvinyl chloride, it is characterised in that: it is heavy that the carbide slag slurries overflow come out from acetylene generator enters
Drop is settled in pond, and slurry discharge in bottom separately uses it for anything else, and upper clear supernate returns to conduct in acetylene generator after cooling down
Calcium carbide prepares acetylene with reaction water；It returns in acetylene generator for acetylene gas dedusting waste water after cooling and is prepared as calcium carbide
Acetylene reaction water；The hot water come out from converter shell enters vapor absorption tower top after heat exchanger exchanges heat and absorbs
From hot water storgae is flowed into after the heat of hot water storgae evaporation, heat exchanger uses in other process；The peace and quiet process of acetylene gas generates useless
Water returns in acetylene generator and prepares acetylene with reaction water as calcium carbide.
2. the technique of calcium carbide production PVC according to claim 1 a kind of, it is characterised in that: the acetylene gas desulfurization process
The waste water of generation returns in acetylene generator and prepares acetylene with reaction water as calcium carbide.
3. the technique of calcium carbide production PVC according to claim 1 a kind of, it is characterised in that: the peace and quiet process of acetylene gas
Waste water a part of generation returns to dedusting cooling process and desulfurization process as dedusting cooling water and desulfurization water, and a part is returned
It returns in acetylene generator and prepares acetylene with reaction water as calcium carbide.
4. the technique of calcium carbide production PVC according to claim 1 a kind of, it is characterised in that: machine seals waste water and is used as calcium carbide system
The standby acetylene supplement water of reaction water.
5. the technique of calcium carbide production PVC according to claim 1 a kind of, it is characterised in that: the bottom slurry discharge is another
It uses it for anything else and refers to and be sent to cement plant cement.
6. the technique of calcium carbide production PVC according to claim 1 a kind of, it is characterised in that: the upper clear supernate cooling is cold
But mode is cooling tower air cooling.
7. the technique of calcium carbide production PVC according to claim 1 a kind of, it is characterised in that: the heat exchanger is in other works
Using referring to heat exchanger for providing heat in the primary brine preparatory phase in chlorine industry for it in sequence.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710209232.1A CN106967192B (en) | 2017-03-31 | 2017-03-31 | A kind of technique of calcium carbide production PVC |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710209232.1A CN106967192B (en) | 2017-03-31 | 2017-03-31 | A kind of technique of calcium carbide production PVC |
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| CN106967192A CN106967192A (en) | 2017-07-21 |
| CN106967192B true CN106967192B (en) | 2019-06-04 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112358559A (en) * | 2020-10-20 | 2021-02-12 | 山东朗晖石油化学股份有限公司 | Novel PVC polymerization is retrieved and is adjusted device |
| CN114163299B (en) * | 2021-10-23 | 2023-04-14 | 新疆天业（集团）有限公司 | Production system and method for co-production of polyvinyl chloride by coal-based ethylene method and calcium carbide acetylene method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6282900B1 (en) * | 2000-06-27 | 2001-09-04 | Ealious D. Bell | Calcium carbide power system with waste energy recovery |
| CN101041528A (en) * | 2007-03-19 | 2007-09-26 | 贵州绿色环保设备工程有限责任公司 | Treatment technique for 'calcium carbide acetylene method PVC production wastewater' by aeration flocculation process |
| CN205700498U (en) * | 2016-04-25 | 2016-11-23 | 新疆兵团现代绿色氯碱化工工程研究中心(有限公司) | The waste-heat recovery device that a kind of polymerization deionized water heats up |
-
2017
- 2017-03-31 CN CN201710209232.1A patent/CN106967192B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6282900B1 (en) * | 2000-06-27 | 2001-09-04 | Ealious D. Bell | Calcium carbide power system with waste energy recovery |
| CN101041528A (en) * | 2007-03-19 | 2007-09-26 | 贵州绿色环保设备工程有限责任公司 | Treatment technique for 'calcium carbide acetylene method PVC production wastewater' by aeration flocculation process |
| CN205700498U (en) * | 2016-04-25 | 2016-11-23 | 新疆兵团现代绿色氯碱化工工程研究中心(有限公司) | The waste-heat recovery device that a kind of polymerization deionized water heats up |
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