JPH0210811B2 - - Google Patents
Info
- Publication number
- JPH0210811B2 JPH0210811B2 JP10486281A JP10486281A JPH0210811B2 JP H0210811 B2 JPH0210811 B2 JP H0210811B2 JP 10486281 A JP10486281 A JP 10486281A JP 10486281 A JP10486281 A JP 10486281A JP H0210811 B2 JPH0210811 B2 JP H0210811B2
- Authority
- JP
- Japan
- Prior art keywords
- parts
- aqueous solution
- dipentaerythritol
- pentaerythritol
- separating
- 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
- 239000007864 aqueous solution Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 26
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 18
- 238000002425 crystallisation Methods 0.000 claims description 17
- 230000008025 crystallization Effects 0.000 claims description 17
- 239000000243 solution Substances 0.000 claims description 17
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 claims description 10
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 3
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 claims description 3
- 239000013078 crystal Substances 0.000 description 25
- 239000007788 liquid Substances 0.000 description 21
- 238000000926 separation method Methods 0.000 description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000012535 impurity Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000004817 gas chromatography Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000006884 silylation reaction Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000011550 stock solution Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- PTJWCLYPVFJWMP-UHFFFAOYSA-N 2-[[3-hydroxy-2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)COCC(CO)(CO)CO PTJWCLYPVFJWMP-UHFFFAOYSA-N 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 235000008504 concentrate Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000004675 formic acid derivatives Chemical class 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 1
- 235000019254 sodium formate Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 238000002061 vacuum sublimation Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10486281A JPS588028A (ja) | 1981-07-03 | 1981-07-03 | ジペンタエリスリト−ルの分離方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10486281A JPS588028A (ja) | 1981-07-03 | 1981-07-03 | ジペンタエリスリト−ルの分離方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS588028A JPS588028A (ja) | 1983-01-18 |
| JPH0210811B2 true JPH0210811B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1990-03-09 |
Family
ID=14392054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10486281A Granted JPS588028A (ja) | 1981-07-03 | 1981-07-03 | ジペンタエリスリト−ルの分離方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS588028A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5254749A (en) * | 1990-01-09 | 1993-10-19 | Mitsui Toatsu Chemicals, Inc. | Process for producing dipentaerythritol |
| JP3368957B2 (ja) * | 1993-12-14 | 2003-01-20 | 三井化学株式会社 | ジペンタエリスリトールの製造方法 |
| JP4727158B2 (ja) | 2004-03-23 | 2011-07-20 | オリンパス株式会社 | 内視鏡システム |
| CN100457701C (zh) * | 2005-06-28 | 2009-02-04 | 湖北宜化化工股份有限公司 | 利用高温缩合和串级重结晶分离制备单、双季戊四醇及其副产品的方法 |
-
1981
- 1981-07-03 JP JP10486281A patent/JPS588028A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS588028A (ja) | 1983-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0552255B1 (en) | Manufacture of high-purity hydroxyacetic acid | |
| JP2012188437A (ja) | 高純度のモノペンタエリスリトールを製造する方法 | |
| CN111423373B (zh) | 硫酸羟氯喹的制备方法 | |
| US5264624A (en) | Process for the recovery of adipic acid | |
| JPH0210811B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| EP0032816B1 (en) | Process for purifying monochloroacetic acid | |
| US6140498A (en) | Process for the continuous production of high purity L-ribose | |
| EP0678501B1 (en) | Process for producing N-chloroacetylglutamine | |
| US5424477A (en) | Preparation process of α-aspartyl-L-phenylalanine methyl ester | |
| US5684174A (en) | Method for purifying O, S-dimethyl N-acetylphosphoramidothioate | |
| JP2988019B2 (ja) | Ｎ−アルキルアミノエタンスルホン酸ナトリウムの製造方法 | |
| JP2863296B2 (ja) | ジペンタエリスリトールの製造方法 | |
| JP2748170B2 (ja) | Ｏ―メチルイソ尿素塩の製法 | |
| WO1991010633A1 (en) | Process for producing dipentaerythritol | |
| US2780655A (en) | Recovery of pentaerythritol by formalin extraction | |
| US3819699A (en) | Purification of lysine amide or carboxylate salts thereof | |
| JP4668393B2 (ja) | ４−アミノウラゾールの製造方法 | |
| US4810483A (en) | Process for producing anhydrous alkali metal hydrosulfites | |
| JPH10316646A (ja) | 高純度の結晶質ｏ−メチルイソ尿素酢酸塩の製造方法及び該方法で得られた結晶質ｏ−メチルイソ尿素酢酸塩 | |
| FI78454C (fi) | Foerfarande foer framstaellning av zinkglukonattrihydrat. | |
| JP3167516B2 (ja) | タウリン精製に使用したアルコールの回収方法 | |
| AU3609493A (en) | Acetic acid recovery | |
| JP2002322166A (ja) | エポキシド結晶の製造法 | |
| JP2770512B2 (ja) | アミノエチルスルホン酸アルカリ金属塩類の精製方法 | |
| CN118005549A (zh) | （2s）-1-（叔丁氧羰基）-4-（甲氧基甲基）-吡咯烷-2-羧酸的精制方法 |