JPH0372060B2 - - Google Patents
Info
- Publication number
- JPH0372060B2 JPH0372060B2 JP18659783A JP18659783A JPH0372060B2 JP H0372060 B2 JPH0372060 B2 JP H0372060B2 JP 18659783 A JP18659783 A JP 18659783A JP 18659783 A JP18659783 A JP 18659783A JP H0372060 B2 JPH0372060 B2 JP H0372060B2
- Authority
- JP
- Japan
- Prior art keywords
- imidazole
- aqueous solution
- crystals
- anion exchange
- exchange resin
- 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
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 99
- 239000007864 aqueous solution Substances 0.000 claims description 30
- 239000013078 crystal Substances 0.000 claims description 22
- 239000003957 anion exchange resin Substances 0.000 claims description 16
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 14
- LEQAOMBKQFMDFZ-UHFFFAOYSA-N glyoxal Chemical compound O=CC=O LEQAOMBKQFMDFZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 238000002425 crystallisation Methods 0.000 claims description 10
- 230000008025 crystallization Effects 0.000 claims description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- 239000012452 mother liquor Substances 0.000 claims description 8
- 229940015043 glyoxal Drugs 0.000 claims description 7
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 238000001953 recrystallisation Methods 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000004821 distillation Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000012736 aqueous medium Substances 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 125000001453 quaternary ammonium group Chemical group 0.000 description 2
- 238000005292 vacuum distillation Methods 0.000 description 2
- 241001550224 Apha Species 0.000 description 1
- 229920001890 Novodur Polymers 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229920001429 chelating resin Polymers 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920001467 poly(styrenesulfonates) Polymers 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012609 strong anion exchange resin Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18659783A JPS6078970A (ja) | 1983-10-04 | 1983-10-04 | イミダゾ−ルの精製方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18659783A JPS6078970A (ja) | 1983-10-04 | 1983-10-04 | イミダゾ−ルの精製方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6078970A JPS6078970A (ja) | 1985-05-04 |
| JPH0372060B2 true JPH0372060B2 (enrdf_load_stackoverflow) | 1991-11-15 |
Family
ID=16191335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18659783A Granted JPS6078970A (ja) | 1983-10-04 | 1983-10-04 | イミダゾ−ルの精製方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6078970A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6177575B1 (en) * | 1998-06-12 | 2001-01-23 | E. I. Du Pont De Nemours And Company | Process for manufacture of imidazoles |
-
1983
- 1983-10-04 JP JP18659783A patent/JPS6078970A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6078970A (ja) | 1985-05-04 |
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