BE858649A - Separation de selenium a partir de solutions d'urethane - Google Patents
Separation de selenium a partir de solutions d'urethaneInfo
- Publication number
- BE858649A BE858649A BE180866A BE180866A BE858649A BE 858649 A BE858649 A BE 858649A BE 180866 A BE180866 A BE 180866A BE 180866 A BE180866 A BE 180866A BE 858649 A BE858649 A BE 858649A
- Authority
- BE
- Belgium
- Prior art keywords
- selenium
- separation
- urethane solutions
- urethane
- solutions
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B19/00—Selenium; Tellurium; Compounds thereof
- C01B19/001—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Extraction Or Liquid Replacement (AREA)
- Physical Water Treatments (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/727,811 US4038377A (en) | 1976-09-29 | 1976-09-29 | Removal of selenium from urethane solutions |
Publications (1)
Publication Number | Publication Date |
---|---|
BE858649A true BE858649A (fr) | 1978-03-13 |
Family
ID=24924168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE180866A BE858649A (fr) | 1976-09-29 | 1977-09-13 | Separation de selenium a partir de solutions d'urethane |
Country Status (8)
Country | Link |
---|---|
US (1) | US4038377A (fr) |
JP (1) | JPS5343031A (fr) |
BE (1) | BE858649A (fr) |
CA (1) | CA1088275A (fr) |
DE (1) | DE2743912A1 (fr) |
ES (1) | ES462016A1 (fr) |
GB (1) | GB1571243A (fr) |
NL (1) | NL7709436A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2413322A1 (fr) * | 1977-12-27 | 1979-07-27 | Atlantic Richfield Co | Separation du selenium de solutions d'urethane |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2904929A1 (de) * | 1979-02-09 | 1980-08-21 | Bayer Ag | Verfahren zur abtrennung von selen, selenverbindungen, schwefel und/oder schwefelverbindungen aus diese elemente bzw. verbindungen aufweisenden polyurethanen |
US4321402A (en) * | 1980-08-18 | 1982-03-23 | Exxon Research & Engineering Co. | Carbamate process |
US8765518B1 (en) | 2013-03-12 | 2014-07-01 | International Business Machines Corporation | Chalcogenide solutions |
CN109319746B (zh) * | 2018-11-14 | 2020-05-26 | 昆明理工大学 | 一种真空蒸馏-亚硫酸钠联合法提纯粗硒的方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1915703A (en) * | 1932-05-18 | 1933-06-27 | Texas Co | Recovery of spent selenium |
US2406666A (en) * | 1945-06-16 | 1946-08-27 | Canadian Copper Refiners Ltd | Process for making selenium dioxide |
FR1441618A (fr) * | 1965-04-26 | 1966-06-10 | Electrochimie Soc | Perfectionnements à la fabrication d'acides éthylèniques à partir d'aldéhydes non saturés |
US3268294A (en) * | 1965-06-10 | 1966-08-23 | Edward S Roberts | Process for producing selenium dioxide |
FR1509084A (fr) * | 1966-11-29 | 1968-01-12 | Electro Chimie Soc D | Procédé de récupération de sélénium iv utilisé comme catalyseur d'oxydation en solution |
-
1976
- 1976-09-29 US US05/727,811 patent/US4038377A/en not_active Expired - Lifetime
-
1977
- 1977-07-28 CA CA283,666A patent/CA1088275A/fr not_active Expired
- 1977-08-26 NL NL7709436A patent/NL7709436A/xx not_active Application Discontinuation
- 1977-08-31 ES ES462016A patent/ES462016A1/es not_active Expired
- 1977-09-07 JP JP10767077A patent/JPS5343031A/ja active Pending
- 1977-09-13 BE BE180866A patent/BE858649A/fr unknown
- 1977-09-28 GB GB40370/77A patent/GB1571243A/en not_active Expired
- 1977-09-29 DE DE19772743912 patent/DE2743912A1/de not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2413322A1 (fr) * | 1977-12-27 | 1979-07-27 | Atlantic Richfield Co | Separation du selenium de solutions d'urethane |
Also Published As
Publication number | Publication date |
---|---|
CA1088275A (fr) | 1980-10-28 |
NL7709436A (nl) | 1978-03-31 |
US4038377A (en) | 1977-07-26 |
JPS5343031A (en) | 1978-04-18 |
GB1571243A (en) | 1980-07-09 |
DE2743912A1 (de) | 1978-03-30 |
ES462016A1 (es) | 1978-06-16 |
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