GB1368178A - Process for isolating alpha,alpha,alpha ,alpha -tetrachloro-p- xylene - Google Patents
Process for isolating alpha,alpha,alpha ,alpha -tetrachloro-p- xyleneInfo
- Publication number
- GB1368178A GB1368178A GB5682572A GB5682572A GB1368178A GB 1368178 A GB1368178 A GB 1368178A GB 5682572 A GB5682572 A GB 5682572A GB 5682572 A GB5682572 A GB 5682572A GB 1368178 A GB1368178 A GB 1368178A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alpha
- xylene
- tetrachloro
- isolating
- dec
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title abstract 2
- 239000000203 mixture Substances 0.000 abstract 3
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 abstract 2
- 229910052801 chlorine Inorganic materials 0.000 abstract 2
- 239000008096 xylene Substances 0.000 abstract 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 125000001309 chloro group Chemical group Cl* 0.000 abstract 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- 239000012452 mother liquor Substances 0.000 abstract 1
- 150000002938 p-xylenes Chemical class 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 150000003738 xylenes Chemical class 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
- C07C17/14—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms in the side-chain of aromatic compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
- C07C17/392—Separation; Purification; Stabilisation; Use of additives by crystallisation; Purification or separation of the crystals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712161006 DE2161006A1 (de) | 1971-12-09 | 1971-12-09 | Verfahren zur isolierung von reinem alpha,alpha,alpha',alpha'-tetrachlor-pxylol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1368178A true GB1368178A (en) | 1974-09-25 |
Family
ID=5827451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5682572A Expired GB1368178A (en) | 1971-12-09 | 1972-12-08 | Process for isolating alpha,alpha,alpha ,alpha -tetrachloro-p- xylene |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS4864035A (https=) |
| CH (1) | CH577442A5 (https=) |
| DE (1) | DE2161006A1 (https=) |
| FR (1) | FR2162616B1 (https=) |
| GB (1) | GB1368178A (https=) |
| NL (1) | NL7216711A (https=) |
-
1971
- 1971-12-09 DE DE19712161006 patent/DE2161006A1/de active Pending
-
1972
- 1972-12-04 CH CH1759472A patent/CH577442A5/xx not_active IP Right Cessation
- 1972-12-08 NL NL7216711A patent/NL7216711A/xx not_active Application Discontinuation
- 1972-12-08 GB GB5682572A patent/GB1368178A/en not_active Expired
- 1972-12-08 FR FR7243829A patent/FR2162616B1/fr not_active Expired
- 1972-12-09 JP JP12385872A patent/JPS4864035A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2162616A1 (https=) | 1973-07-20 |
| CH577442A5 (https=) | 1976-07-15 |
| FR2162616B1 (https=) | 1976-08-20 |
| JPS4864035A (https=) | 1973-09-05 |
| DE2161006A1 (de) | 1973-06-14 |
| NL7216711A (https=) | 1973-06-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |