JPH0228129A - 高純度ホルムアルデヒドの製造法 - Google Patents
高純度ホルムアルデヒドの製造法Info
- Publication number
- JPH0228129A JPH0228129A JP1046623A JP4662389A JPH0228129A JP H0228129 A JPH0228129 A JP H0228129A JP 1046623 A JP1046623 A JP 1046623A JP 4662389 A JP4662389 A JP 4662389A JP H0228129 A JPH0228129 A JP H0228129A
- Authority
- JP
- Japan
- Prior art keywords
- formaldehyde
- column
- methanol
- water
- polyalkylene oxide
- 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.)
- Granted
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1046623A JPH0228129A (ja) | 1988-04-07 | 1989-03-01 | 高純度ホルムアルデヒドの製造法 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8406388 | 1988-04-07 | ||
JP63-84063 | 1988-04-07 | ||
JP1046623A JPH0228129A (ja) | 1988-04-07 | 1989-03-01 | 高純度ホルムアルデヒドの製造法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0228129A true JPH0228129A (ja) | 1990-01-30 |
JPH0532374B2 JPH0532374B2 (enrdf_load_stackoverflow) | 1993-05-14 |
Family
ID=26386729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1046623A Granted JPH0228129A (ja) | 1988-04-07 | 1989-03-01 | 高純度ホルムアルデヒドの製造法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0228129A (enrdf_load_stackoverflow) |
-
1989
- 1989-03-01 JP JP1046623A patent/JPH0228129A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0532374B2 (enrdf_load_stackoverflow) | 1993-05-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU2102379C1 (ru) | Способ получения уксусной кислоты | |
CN101657403B (zh) | 用于回收二氯代醇的多级方法和设备 | |
EP0535949A1 (en) | Purification of propylene oxide by extractive distillation | |
US5214185A (en) | Continuous process for preparing dimethyl carbonate | |
EP1289973B1 (en) | Process for the removal of carbon dioxide from 3,4-epoxy-1-butene process recycle streams | |
EP1409469B1 (en) | Recovery and purification of 3,4-epoxy-1-butene | |
JP2786823B2 (ja) | メチラ−ルの精製法 | |
US4962235A (en) | Process for producing high purity formaldehyde | |
US2780652A (en) | Preparation of high purity formaldehyde | |
JPH0228129A (ja) | 高純度ホルムアルデヒドの製造法 | |
US6060627A (en) | Polyol purification | |
JPH0424335B2 (enrdf_load_stackoverflow) | ||
US6596882B2 (en) | Recovery and purification of 3,4-epoxy-1-butene using water-miscible solvents | |
JP4765165B2 (ja) | 高純度アクリル酸の製造方法 | |
JP3960525B2 (ja) | ジメチルカーボネート及びエチレングリコールの製造方法 | |
US6500970B1 (en) | Recovery and purification of 3,4-epoxy-1-butene using high-boiling solvents | |
JP3166295B2 (ja) | アセタールの分離法 | |
JP3543447B2 (ja) | 二量化アルデヒドの製造方法 | |
JPH0244294B2 (ja) | Metakuroreinnokaishuhoho | |
JP4805429B2 (ja) | 環状ホルマールの製造方法 | |
JPH0325431B2 (enrdf_load_stackoverflow) | ||
JPH06228127A (ja) | トリオキサンの製造方法 | |
JPH10168007A (ja) | 高純度ベンジルアルコールの製造法 | |
US3133870A (en) | Extractive distillation of hydrazine with 1, 2, 6-hexanetriol | |
JPH107608A (ja) | 高純度ベンジルアルコールの製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080514 Year of fee payment: 15 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090514 Year of fee payment: 16 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090514 Year of fee payment: 16 |
|
S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090514 Year of fee payment: 16 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
EXPY | Cancellation because of completion of term |