KR910019913A - 폴리비닐알콜의 분리방법 - Google Patents
폴리비닐알콜의 분리방법 Download PDFInfo
- Publication number
- KR910019913A KR910019913A KR1019910007832A KR910007832A KR910019913A KR 910019913 A KR910019913 A KR 910019913A KR 1019910007832 A KR1019910007832 A KR 1019910007832A KR 910007832 A KR910007832 A KR 910007832A KR 910019913 A KR910019913 A KR 910019913A
- Authority
- KR
- South Korea
- Prior art keywords
- polyvinyl alcohol
- separation method
- separate
- solution
- polyvinyl
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/908—Organic
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도, 제2도 및 제3도는 섬유산업에서의 폐수와 같은 물에서 PVA를 분리하기 위한 본 발명의 방법에 사용되는 각각의 장치의 실시예를 도시하는 것이다.
Claims (4)
- 폴리비닐알콜수용액에 피옥소이황산염을 첨가하고, 얻어진 용액을 70°C이상의 온도로 가열하여 폴리비닐알콜을 분리시키는 폴리비닐알콜의 분리방법.
- 제1항에 있어서, 폴리비닐알콜의 분리를 황산을 첨가한 산성조건하에서 행하는 것을 특징으로 하는 폴리비닐알콜의 분리방법.
- 제1항 또는 제2항에 있어서, 피옥소이황산염으로 피옥소이황산암모니옴을 사용하는 것을 특징으로 하는 폴리비닐알콜의 분리방법.
- 제1항 또는 제2항에 있어서, 폴리비닐알콜수용액은 폴리비닐알콜을 사용하는 직물제품의 전처리에서 얻은 폴리비닐알콜을 함유하는 폐수로 이루어지는 것을 특징으로 하는 폴리비닐알콜의 분리방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12772090A JPH0630770B2 (ja) | 1990-05-17 | 1990-05-17 | ポリビニールアルコールの分離方法 |
| JP2-127720 | 1990-05-17 | ||
| JP17787490A JPH0630771B2 (ja) | 1990-07-05 | 1990-07-05 | ポリビニールアルコールの分離方法 |
| JP2-177874 | 1990-07-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR910019913A true KR910019913A (ko) | 1991-12-19 |
| KR940000558B1 KR940000558B1 (ko) | 1994-01-24 |
Family
ID=26463605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019910007832A KR940000558B1 (ko) | 1990-05-17 | 1991-05-15 | 폴리비닐알콜의 분리방법 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5110481A (ko) |
| KR (1) | KR940000558B1 (ko) |
| DE (1) | DE4115290A1 (ko) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4141777A1 (de) * | 1991-12-18 | 1993-06-24 | Hoechst Ag | Verfahren zur faellung waessriger, polyvinylalkoholhaltiger kunststoffdispersionen |
| US7147787B2 (en) * | 1999-11-19 | 2006-12-12 | Microtek Medical Holdings, Inc | Process for treatment of aqueous environments containing a water-soluble polymer |
| US6623643B2 (en) * | 1999-11-19 | 2003-09-23 | Microtek Medical Holdings, Inc. | Process for treatment of aqueous environments containing a water soluble polymer |
| WO2003074432A1 (en) * | 2001-05-22 | 2003-09-12 | Microtek Medical Holdings, Inc. | Process and system for treatment of aqueous environments containing water soluble polymers |
| MX337449B (es) | 2009-11-17 | 2016-03-07 | Hana Inspection & Engineering Co Ltd | Disposicion y descontaminacion de productos radioactivos de alcohol polivinilico. |
| CN102887577A (zh) * | 2012-09-25 | 2013-01-23 | 江苏红旗印染机械有限公司 | 一种印染退浆废水pva浆回收*** |
| CN112707580A (zh) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | 一种含聚乙烯醇废水的处理方法及*** |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3232869A (en) * | 1963-04-04 | 1966-02-01 | Andrew J Gard | Method of purifying aqueous liquid |
| US3318856A (en) * | 1964-03-23 | 1967-05-09 | Du Pont | Process of gelling polyvinyl alcohol |
| US3518242A (en) * | 1966-03-30 | 1970-06-30 | Du Pont | Polyvinyl alcohol and derivatives crosslinked with titanium,permanganate,or vanadyl ions |
| JPS5173756A (en) * | 1974-12-20 | 1976-06-25 | Shikibo Ltd | Suiyoekikara horibiniruarukooruo bunrisuruhoho |
| US4202745A (en) * | 1978-07-07 | 1980-05-13 | The Dow Chemical Company | Method for treating a desizing waste stream |
| DE3013925A1 (de) * | 1980-04-11 | 1981-10-22 | Basf Ag, 6700 Ludwigshafen | Verfahren zum reinigen von schlichteregeneatflotten |
| DE3125452C2 (de) * | 1981-06-29 | 1985-09-12 | Degussa Ag, 6000 Frankfurt | Verfahren zum Entgiften und zum Absenken des CSB und des BSB in kontinuierlichen Abwasserströmen mit wechselnden Gehalten verschiedener oxidierbarer Inhaltsstoffe mit Wasserstoffperoxid |
| US5026485A (en) * | 1990-03-30 | 1991-06-25 | General Electric Company | Method of treating wastewater from polymerization process |
-
1991
- 1991-05-10 US US07/698,670 patent/US5110481A/en not_active Expired - Fee Related
- 1991-05-10 DE DE4115290A patent/DE4115290A1/de not_active Withdrawn
- 1991-05-15 KR KR1019910007832A patent/KR940000558B1/ko not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US5110481A (en) | 1992-05-05 |
| KR940000558B1 (ko) | 1994-01-24 |
| DE4115290A1 (de) | 1991-11-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| G160 | Decision to publish patent application | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 19971227 Year of fee payment: 5 |
|
| LAPS | Lapse due to unpaid annual fee |