DE1768474A1 - Verfahren zur Abtrennung von p-Xylol - Google Patents
Verfahren zur Abtrennung von p-XylolInfo
- Publication number
- DE1768474A1 DE1768474A1 DE19681768474 DE1768474A DE1768474A1 DE 1768474 A1 DE1768474 A1 DE 1768474A1 DE 19681768474 DE19681768474 DE 19681768474 DE 1768474 A DE1768474 A DE 1768474A DE 1768474 A1 DE1768474 A1 DE 1768474A1
- Authority
- DE
- Germany
- Prior art keywords
- xylene
- toluene
- cake
- liquid
- temperature
- 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
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 title claims description 133
- 238000000034 method Methods 0.000 title claims description 18
- 238000000926 separation method Methods 0.000 title claims description 8
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 114
- 239000007788 liquid Substances 0.000 claims description 37
- 238000005406 washing Methods 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 21
- 238000002425 crystallisation Methods 0.000 claims description 20
- 230000008025 crystallization Effects 0.000 claims description 20
- 239000013078 crystal Substances 0.000 claims description 14
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 claims description 14
- 239000012452 mother liquor Substances 0.000 claims description 14
- 230000005496 eutectics Effects 0.000 claims description 13
- 229930195733 hydrocarbon Natural products 0.000 claims description 8
- 150000002430 hydrocarbons Chemical class 0.000 claims description 8
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 150000003613 toluenes Chemical class 0.000 claims 1
- 239000000047 product Substances 0.000 description 15
- 239000004215 Carbon black (E152) Substances 0.000 description 11
- 125000003118 aryl group Chemical group 0.000 description 9
- 239000007787 solid Substances 0.000 description 7
- 238000005119 centrifugation Methods 0.000 description 6
- 239000000706 filtrate Substances 0.000 description 6
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 5
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 4
- 239000003085 diluting agent Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 239000002956 ash Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000374 eutectic mixture Substances 0.000 description 2
- 229940078552 o-xylene Drugs 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000001640 fractional crystallisation Methods 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000003738 xylenes Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/14—Purification; Separation; Use of additives by crystallisation; Purification or separation of the crystals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US64041767A | 1967-05-22 | 1967-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1768474A1 true DE1768474A1 (de) | 1971-11-11 |
Family
ID=24568145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19681768474 Pending DE1768474A1 (de) | 1967-05-22 | 1968-05-17 | Verfahren zur Abtrennung von p-Xylol |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3462511A (en:Method) |
| BE (1) | BE715490A (en:Method) |
| DE (1) | DE1768474A1 (en:Method) |
| FR (1) | FR1564411A (en:Method) |
| GB (1) | GB1208328A (en:Method) |
| NL (1) | NL6807103A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3662013A (en) * | 1970-02-03 | 1972-05-09 | Mobil Oil Corp | Single stage crystallization process for separating high purity paraxylene |
| US3916018A (en) * | 1973-03-26 | 1975-10-28 | Atlantic Richfield Co | Separation of paraxylene |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA571632A (en) * | 1959-03-03 | M. Powers John | Method for recovering paraxylene | |
| US2795634A (en) * | 1953-05-01 | 1957-06-11 | Standard Oil Co | Recovery of ortho-and para-xylenes from c8 aromatic mixtures |
| GB949161A (en) * | 1959-04-30 | 1964-02-12 | Maruzen Sekiyu Kabushiki Kaish | A process and apparatus for manufacturing high purity p-xylene |
-
1967
- 1967-05-22 US US640417A patent/US3462511A/en not_active Expired - Lifetime
-
1968
- 1968-04-23 GB GB09050/68A patent/GB1208328A/en not_active Expired
- 1968-05-17 DE DE19681768474 patent/DE1768474A1/de active Pending
- 1968-05-20 NL NL6807103A patent/NL6807103A/xx unknown
- 1968-05-21 BE BE715490D patent/BE715490A/xx unknown
- 1968-05-22 FR FR1564411D patent/FR1564411A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1208328A (en) | 1970-10-14 |
| NL6807103A (en:Method) | 1968-11-25 |
| US3462511A (en) | 1969-08-19 |
| FR1564411A (en:Method) | 1969-04-18 |
| BE715490A (en:Method) | 1968-11-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHN | Withdrawal |