JPH0425969B2 - - Google Patents
Info
- Publication number
- JPH0425969B2 JPH0425969B2 JP3542584A JP3542584A JPH0425969B2 JP H0425969 B2 JPH0425969 B2 JP H0425969B2 JP 3542584 A JP3542584 A JP 3542584A JP 3542584 A JP3542584 A JP 3542584A JP H0425969 B2 JPH0425969 B2 JP H0425969B2
- Authority
- JP
- Japan
- Prior art keywords
- polyethylene glycol
- acid
- alkali catalyst
- added
- alkali
- 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
- 239000002202 Polyethylene glycol Substances 0.000 claims description 22
- 229920001223 polyethylene glycol Polymers 0.000 claims description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000003513 alkali Substances 0.000 claims description 15
- 239000003054 catalyst Substances 0.000 claims description 14
- 239000002253 acid Substances 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000003463 adsorbent Substances 0.000 claims description 7
- 235000019441 ethanol Nutrition 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000002845 discoloration Methods 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 6
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 238000004040 coloring Methods 0.000 description 3
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 3
- 239000000391 magnesium silicate Substances 0.000 description 3
- 229910052919 magnesium silicate Inorganic materials 0.000 description 3
- 235000019792 magnesium silicate Nutrition 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Polyethers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3542584A JPS60181126A (ja) | 1984-02-28 | 1984-02-28 | ポリエチレングリコ−ルの熱着色防止法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3542584A JPS60181126A (ja) | 1984-02-28 | 1984-02-28 | ポリエチレングリコ−ルの熱着色防止法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60181126A JPS60181126A (ja) | 1985-09-14 |
| JPH0425969B2 true JPH0425969B2 (da) | 1992-05-06 |
Family
ID=12441511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3542584A Granted JPS60181126A (ja) | 1984-02-28 | 1984-02-28 | ポリエチレングリコ−ルの熱着色防止法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60181126A (da) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5220100A (en) * | 1992-07-28 | 1993-06-15 | Shell Oil Company | Method of removing lithium compounds from a polymer |
| JP6023766B2 (ja) * | 2013-09-09 | 2016-11-09 | 三洋化成工業株式会社 | 血漿分画用ポリエチレングリコール又は血漿分画用ポリエチレングリコールのモノメチルエーテル及びその製造方法 |
| CN109232878A (zh) * | 2018-07-13 | 2019-01-18 | 南京卡邦科技有限公司 | 一种聚乙二醇醚的纯化方法 |
-
1984
- 1984-02-28 JP JP3542584A patent/JPS60181126A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60181126A (ja) | 1985-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2011520948A (ja) | エチレン性不飽和酸またはそのエステルの製造 | |
| EP0498346A1 (en) | Nitrosamine inhibition | |
| DK162762B (da) | Stabiliserede oploesninger af hydroxylamin eller salte deraf i vand eller alkoholer samt fremgangsmaade til fremstilling af saadanne oploesninger | |
| JPH0425969B2 (da) | ||
| JPS61293948A (ja) | カルボン酸の製法 | |
| JP6180717B2 (ja) | ヨウ化リチウム水溶液の製造方法及びその利用 | |
| JP2002363132A (ja) | ２，２，４−トリメチル−１，３−ペンタンジオールジイソブチレートの製造方法 | |
| JPS632430B2 (da) | ||
| US3903117A (en) | Color stabilization of refined maleic acid anhydride | |
| US2559612A (en) | Method of stabilizing the foam of malt beverages | |
| JPH0859205A (ja) | ヨウ化水素酸の製造方法 | |
| SU688119A3 (ru) | Способ получени стабильных водных суспензий формальдегида | |
| US4492788A (en) | Partially deacylated ultra-high molecular weight poly(N-propionylethylenimines) | |
| JPH06279401A (ja) | Ｎ−メチル−２−ピロリドンの精製方法 | |
| US4487987A (en) | Method of decolorizing mixtures of aminoethylpiperazine, a polyoxypropylenediamine and alkylphenols with N,N-diethylhydroxylamine | |
| JP3008374B2 (ja) | ジヒドロキシジフエニルメタンの着色防止方法 | |
| EP0718033A2 (en) | Emulsifier | |
| SU376413A1 (ru) | Способ получения стабилизированных полиамидов | |
| US4140686A (en) | Method for purifying α-amino-ε-caprolactam | |
| JPS63303937A (ja) | プロピノールの製造方法 | |
| US3903121A (en) | Telomers containing 1,3-dioxane, vinyl acetate, chlorine and vinyl alcohol | |
| JPH05117195A (ja) | ポリグリセリンの精製方法 | |
| JPH04108781A (ja) | ポリオキシアルキレンソルビタンエステルの安定化法 | |
| SU810734A1 (ru) | Состав дл диффузионной стабили-зАции пОлиАМидОВ | |
| US3684797A (en) | Purification of laurolactam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |