CN112521359A - Knot sheet packaging method for phthalic anhydride production - Google Patents
Knot sheet packaging method for phthalic anhydride production Download PDFInfo
- Publication number
- CN112521359A CN112521359A CN202011485030.8A CN202011485030A CN112521359A CN 112521359 A CN112521359 A CN 112521359A CN 202011485030 A CN202011485030 A CN 202011485030A CN 112521359 A CN112521359 A CN 112521359A
- Authority
- CN
- China
- Prior art keywords
- phthalic anhydride
- liquid
- mold
- placing
- production
- 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.)
- Pending
Links
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 title claims abstract description 119
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 title claims abstract description 114
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000084 colloidal system Substances 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000009461 vacuum packaging Methods 0.000 claims abstract description 4
- 238000001704 evaporation Methods 0.000 claims description 7
- 230000008020 evaporation Effects 0.000 claims description 7
- 238000012858 packaging process Methods 0.000 claims 4
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 description 4
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 150000001454 anthracenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 235000002639 sodium chloride Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/87—Benzo [c] furans; Hydrogenated benzo [c] furans
- C07D307/89—Benzo [c] furans; Hydrogenated benzo [c] furans with two oxygen atoms directly attached in positions 1 and 3
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B5/00—Packaging individual articles in containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, jars
Abstract
The invention discloses a knot sheet packaging method for phthalic anhydride production, which comprises the following operation steps: s1: placing the rectified phthalic anhydride liquid into a mold, placing the mold on a heating table, heating the mold at a high temperature, and stirring the phthalic anhydride liquid by matching with a stirrer to evaporate and gradually gelatinize the water liquid in the phthalic anhydride liquid; s2: placing the semi-solid phthalic anhydride colloid and the mould on a vibration table, and vibrating for 30 minutes; s3: placing the phthalic anhydride colloid and the mold on a cooling table, surrounding the mold with a liquid cooling pipe, and cooling for 5-8 hours by introducing water; s4: conveying the solid phthalic anhydride to a cutting machine, and cutting; s5: and conveying the cut phthalic anhydride sheets to a packaging machine, and carrying out vacuum packaging on the phthalic anhydride sheets. The invention relates to a knot sheet packaging method for phthalic anhydride production, which is convenient to carry and use by making sheets of phthalic anhydride.
Description
Technical Field
The invention relates to the field of phthalic anhydride production, in particular to a knot sheet packaging method for phthalic anhydride production.
Background
The phthalic anhydride is mainly used for producing phthalate plasticizers, such as dioctyl phthalate (DOP), dibutyl phthalate (DBP), mixed phthalate and the like, and the plasticizers are widely applied to processing of polyvinyl chloride (PVC) plastic products. Its second use is in the production of alkyd resin coatings. The phthalic anhydride can also be used for producing unsaturated polyester, and the unsaturated polyester is one of raw materials for producing glass fiber reinforced plastics. In the dye industry for the synthesis of anthracene esters, phthalocyanine blue in pigments, etc. Phthalic anhydride is used in the pharmaceutical industry for the preparation of phenolphthalein and the like. The method is used for producing intermediates such as phosphorous oxychloride and the like in pesticide manufacture.
In recent years, PVC plastic processing has been rapidly developed in Zhou Zhuang area of Suzhou, tin-free Jiangyin area, sea salt of Zhejiang, Shaoxing area, Yuyao area and Shanghai area, and has become an area where PVC processing and manufacturing industries are concentrated in China, and the demand of phthalic anhydride in the peripheral area is increased year by year in addition to the expansion of the capacity of resin industry. From the current domestic quotation, although the actual yield of the phthalic anhydride can basically meet the requirements of downstream products, the quality of the products is uneven, the occupancy rate of superior phthalic anhydride is not high, and particularly, the phthalic anhydride by the naphthalene method is used.
Disclosure of Invention
The invention mainly aims to provide a knot sheet packaging method for phthalic anhydride production, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a sheeting packaging method for phthalic anhydride production comprises the following operation steps:
s1: placing the rectified phthalic anhydride liquid into a mold, placing the mold on a heating table, heating the mold at a high temperature, and stirring the phthalic anhydride liquid by matching with a stirrer to evaporate and gradually gelatinize the water liquid in the phthalic anhydride liquid;
s2: placing the semi-solid phthalic anhydride colloid and the mould on a vibration table, and vibrating for 30 minutes;
s3: placing the phthalic anhydride colloid and the mold on a cooling table, surrounding the mold with a liquid cooling pipe, and cooling for 5-8 hours by introducing water;
s4: conveying the solid phthalic anhydride to a cutting machine, and cutting;
s5: and conveying the cut phthalic anhydride sheets to a packaging machine, and carrying out vacuum packaging on the phthalic anhydride sheets.
Preferably, the heating method in the step S1 is that the phthalic anhydride liquid is heated for 6 hours in a medium oil bottle at a temperature of 100 ℃ to boil and evaporate water contained in the phthalic anhydride liquid, the phthalic anhydride liquid is further heated for 2 hours in a medium oil bottle at a temperature of 180 ℃ to keep the phthalic anhydride liquid in a liquid state in a state of water vapor evaporation, and the phthalic anhydride liquid is further heated in a medium oil bottle at a temperature of 140 ℃ to cool and gel the dehydrated phthalic anhydride liquid.
Preferably, in the step S2, the vibration frequency of the vibration table is 38 hz/S, and the vibration amplitude of the vibration table is 1-2 mm.
Preferably, the length of the sliced phthalic anhydride sheet in the step S4 is 3 cm, the width of the sliced phthalic anhydride sheet is 1 cm, and the thickness of the sliced phthalic anhydride sheet is 2 mm.
Preferably, the number of the phthalic anhydride sheets per bag in the S5 step is 5.
Compared with the prior art, the invention has the following beneficial effects:
in the invention, the phthalic anhydride is tabletted and is convenient to carry and use, the phthalic anhydride liquid is heated by a medium oil bottle with the temperature of 100 ℃ for 6 hours to boil and evaporate water contained in the phthalic anhydride liquid, the phthalic anhydride liquid is further heated by a medium oil bottle with the temperature of 180 ℃ for 2 hours to keep the phthalic anhydride liquid in a liquid state in a water vapor evaporation state, the phthalic anhydride liquid is further heated by a medium oil bottle with the temperature of 140 ℃ to cool and gelatinize the dehydrated phthalic anhydride liquid, the phthalic anhydride liquid is stirred by a stirrer to quickly evaporate water in the phthalic anhydride, the processing of the phthalic anhydride is efficient and quick, the phthalic anhydride liquid is heated uniformly and stably by heating the medium oil bottle, the evaporation of the phthalic anhydride liquid is quick and stable, the phthalic anhydride colloid is vibrated by a vibration table to disperse bubbles in the phthalic anhydride colloid, the dry piece structure of the prepared phthalic anhydride is compact, and the drying of the phthalic anhydride colloid is fast through the arranged circulating water cooling, so that the processing of the phthalic anhydride is efficient and fast.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the invention relates to a knot sheet packaging method for phthalic anhydride production, which comprises the following operation steps:
s1: placing the rectified phthalic anhydride liquid into a mold, placing the mold on a heating table, heating the mold at a high temperature, and stirring the phthalic anhydride liquid by matching with a stirrer to evaporate and gradually gelatinize the water liquid in the phthalic anhydride liquid;
s2: placing the semi-solid phthalic anhydride colloid and the mould on a vibration table, and vibrating for 30 minutes;
s3: placing the phthalic anhydride colloid and the mold on a cooling table, surrounding the mold with a liquid cooling pipe, and cooling for 5-8 hours by introducing water;
s4: conveying the solid phthalic anhydride to a cutting machine, and cutting;
s5: and conveying the cut phthalic anhydride sheets to a packaging machine, and carrying out vacuum packaging on the phthalic anhydride sheets.
Example 2:
on the basis of example 1, the heating method in the step S1 is to heat the phthalic anhydride liquid for 6 hours through a medium oil bottle with a temperature of 100 ℃ to boil and evaporate the water contained in the phthalic anhydride liquid, further heat the phthalic anhydride liquid for 2 hours through a medium oil bottle with a temperature of 180 ℃ to keep the phthalic anhydride liquid in a liquid state under the state of water vapor evaporation, and further heat the phthalic anhydride liquid through a medium oil bottle with a temperature of 140 ℃ to cool and gel the dehydrated phthalic anhydride liquid.
Example 3:
based on example 1, the vibration frequency of the vibration table in step S2 was 38 hz/sec, and the vibration amplitude of the vibration table was 1-2 mm.
Example 4:
on the basis of example 1, the length of the sliced phthalic anhydride sheet in step S4 was 3 cm, the width of the sliced phthalic anhydride sheet was 1 cm, and the thickness of the sliced phthalic anhydride sheet was 2 mm.
Example 5:
the number of phthalic anhydride chips per bag in the step of S5 was 5 on the basis of example 1.
The invention is convenient to carry and use by flaking phthalic anhydride, the phthalic anhydride liquid is heated by a medium oil-sealed bottle with the temperature of 100 ℃ for 6 hours, so that the water liquid contained in the phthalic anhydride liquid is boiled and evaporated, the phthalic anhydride liquid is further heated by a medium oil-sealed bottle with the temperature of 180 ℃ for 2 hours, so that the phthalic anhydride liquid is kept in a liquid state under the state of water vapor evaporation, the phthalic anhydride liquid is further heated by a medium oil-sealed bottle with the temperature of 140 ℃ so that the dehydrated phthalic anhydride liquid is cooled and gelatinized, the phthalic anhydride liquid is stirred by matching with a stirrer, so that the water in the phthalic anhydride is evaporated quickly, the processing of the phthalic anhydride is efficient and quick, the phthalic anhydride liquid is heated uniformly and stably by heating the phthalic anhydride liquid by using the medium oil-sealed bottle, the evaporation of the phthalic anhydride liquid is quick and stable, the phthalic anhydride colloid is vibrated by a vibration table, so that bubbles in the phthalic anhydride colloid are dispersed, and the structure of the prepared phthalic anhydride dry flake is compact, through the set circulating water cooling, the drying of the phthalic anhydride colloid is fast, and further the processing of the phthalic anhydride is efficient and fast.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A sheeting packaging method for phthalic anhydride production is characterized in that: the method comprises the following operation steps:
s1: placing the rectified phthalic anhydride liquid into a mold, placing the mold on a heating table, heating the mold at a high temperature, and stirring the phthalic anhydride liquid by matching with a stirrer to evaporate and gradually gelatinize the water liquid in the phthalic anhydride liquid;
s2: placing the semi-solid phthalic anhydride colloid and the mould on a vibration table, and vibrating for 30 minutes;
s3: placing the phthalic anhydride colloid and the mold on a cooling table, surrounding the mold with a liquid cooling pipe, and cooling for 5-8 hours by introducing water;
s4: conveying the solid phthalic anhydride to a cutting machine, and cutting;
s5: and conveying the cut phthalic anhydride sheets to a packaging machine, and carrying out vacuum packaging on the phthalic anhydride sheets.
2. The sheeting packaging process for phthalic anhydride production as claimed in claim 1, wherein: the heating method in the step S1 is that the phthalic anhydride liquid is heated for 6 hours through a medium oil bottle at a temperature of 100 ℃ to boil and evaporate water contained in the phthalic anhydride liquid, the phthalic anhydride liquid is further heated for 2 hours through the medium oil bottle at a temperature of 180 ℃ to keep the phthalic anhydride liquid in a liquid state in a state of water vapor evaporation, and the phthalic anhydride liquid is further heated through the medium oil bottle at a temperature of 140 ℃ to cool and gel the dehydrated phthalic anhydride liquid.
3. The sheeting packaging process for phthalic anhydride production as claimed in claim 1, wherein: in the step S2, the vibration frequency of the vibration table is 38 hz/S, and the vibration amplitude of the vibration table is 1-2 mm.
4. The sheeting packaging process for phthalic anhydride production as claimed in claim 1, wherein: the length of the phthalic anhydride slice cut in the step S4 is 3 cm, the width of the phthalic anhydride slice is 1 cm, and the thickness of the phthalic anhydride slice is 2 mm.
5. The sheeting packaging process for phthalic anhydride production as claimed in claim 1, wherein: the number of phthalic anhydride sheets per bag in the step S5 was 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011485030.8A CN112521359A (en) | 2020-12-16 | 2020-12-16 | Knot sheet packaging method for phthalic anhydride production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011485030.8A CN112521359A (en) | 2020-12-16 | 2020-12-16 | Knot sheet packaging method for phthalic anhydride production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112521359A true CN112521359A (en) | 2021-03-19 |
Family
ID=75000567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011485030.8A Pending CN112521359A (en) | 2020-12-16 | 2020-12-16 | Knot sheet packaging method for phthalic anhydride production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112521359A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1330562A (en) * | 1970-02-28 | 1973-09-19 | Basf Ag | Purification of crude phthalic anhydride |
| FR2250755A1 (en) * | 1973-11-10 | 1975-06-06 | Davy Powergas Gmbh | Phthalic acid anhydride continuously pretreated before distn. - in economic annular chamber which reduces heat losses |
| US5214157A (en) * | 1991-05-07 | 1993-05-25 | Exxon Chemical Patents Inc. | Process for the disposal of phthalic anhydride decomposer vapors |
| US20120259131A1 (en) * | 2009-10-26 | 2012-10-11 | De Munck Nicolaas A | Phthalic anhydride process |
-
2020
- 2020-12-16 CN CN202011485030.8A patent/CN112521359A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1330562A (en) * | 1970-02-28 | 1973-09-19 | Basf Ag | Purification of crude phthalic anhydride |
| FR2250755A1 (en) * | 1973-11-10 | 1975-06-06 | Davy Powergas Gmbh | Phthalic acid anhydride continuously pretreated before distn. - in economic annular chamber which reduces heat losses |
| US5214157A (en) * | 1991-05-07 | 1993-05-25 | Exxon Chemical Patents Inc. | Process for the disposal of phthalic anhydride decomposer vapors |
| US20120259131A1 (en) * | 2009-10-26 | 2012-10-11 | De Munck Nicolaas A | Phthalic anhydride process |
Non-Patent Citations (1)
| Title |
|---|
| 包文滁;: "国外苯酐生产概况" * |
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| PB01 | Publication | ||
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Application publication date: 20210319 |