FR70742E - Procédé pour l'obtention de polymères d'oxydes d'alkylène - Google Patents

Procédé pour l'obtention de polymères d'oxydes d'alkylène

Info

Publication number
FR70742E
FR70742E FR70742DA FR70742E FR 70742 E FR70742 E FR 70742E FR 70742D A FR70742D A FR 70742DA FR 70742 E FR70742 E FR 70742E
Authority
FR
France
Prior art keywords
alkylene oxides
obtaining polymers
polymers
obtaining
alkylene
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
Application number
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Petrochemicals Ltd
Original Assignee
Petrochemicals Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Petrochemicals Ltd filed Critical Petrochemicals Ltd
Application granted granted Critical
Publication of FR70742E publication Critical patent/FR70742E/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
    • C01B21/16—Hydrazine; Salts thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
    • C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
    • C08G65/08—Saturated oxiranes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyethers (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
FR70742D 1949-05-31 1956-08-20 Procédé pour l'obtention de polymères d'oxydes d'alkylène Expired FR70742E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US96165A US2698286A (en) 1949-05-31 1949-05-31 Dehydration of hydrazine solutions

Publications (1)

Publication Number Publication Date
FR70742E true FR70742E (fr) 1959-07-10

Family

ID=22255966

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1019168D Expired FR1019168A (fr) 1949-05-31 1950-05-30 Procédé pour la production d'hydrazine
FR70742D Expired FR70742E (fr) 1949-05-31 1956-08-20 Procédé pour l'obtention de polymères d'oxydes d'alkylène

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR1019168D Expired FR1019168A (fr) 1949-05-31 1950-05-30 Procédé pour la production d'hydrazine

Country Status (7)

Country Link
US (1) US2698286A (fr)
BE (2) BE496059A (fr)
CH (1) CH291184A (fr)
DE (1) DE1150206B (fr)
FR (2) FR1019168A (fr)
GB (1) GB703065A (fr)
NL (2) NL109561C (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1016687B (de) * 1952-02-06 1957-10-03 Olin Mathieson Verfahren zur Konzentrierung waessrigen Hydrazins
DE1020007B (de) * 1952-02-06 1957-11-28 Olin Mathieson Verfahren zur Konzentrierung waessrigen Hydrazins
BE528536A (fr) * 1953-04-02
US2963407A (en) * 1953-10-06 1960-12-06 Olin Mathieson Dehydration of hydrazine
US3138545A (en) * 1955-05-10 1964-06-23 Fmc Corp Dehydration of nu, nu-dimethylhydrazine by distillation in the presence of an alkali
DE1095794B (de) * 1956-11-28 1960-12-29 Olin Mathieson Extraktionsverfahren zur Dehydratisierung von waessrigem Hydazin
DE1098924B (de) * 1957-02-08 1961-02-09 Olin Mathieson Verfahren zur Dehydratisierung waessriger Loesungen von Hydrazin
BE566483A (fr) * 1957-04-05
NL105668C (fr) * 1957-07-31
DE1049833B (de) * 1957-08-01 1959-02-05 Farbenfabriken Bayer Aktiengesellschaft, Leverkusen-Bayerwerk Verfahren zur Entfernung von Aceton aus acetonhaltigen wäßrigen Hydrazinlösungen
NL246334A (fr) * 1958-12-16
US3284374A (en) * 1960-03-05 1966-11-08 Nippon Carbide Kogyo Kk Process for polymerizing olefin oxides with a catalyst consisting of an organozinc compound and an amine
US3433788A (en) * 1966-04-27 1969-03-18 Union Carbide Corp Process for recovery of amines from aqueous solutions by solvent treatment and distillation
FR2354965A1 (fr) * 1976-06-15 1978-01-13 Anvar Procede et dispositif pour la purification poussee de l'eau et produit obtenu
US4124452A (en) * 1978-05-22 1978-11-07 The United States Of America As Represented By The Secretary Of The Navy Distillation technique for removal of UDMH from water
US4154658A (en) * 1978-07-03 1979-05-15 The United States Of America As Represented By The Secretary Of The Navy Purification of 1,1-dimethyl hydrazine (UDMH) containing formaldehyde dimethyl hydrazone
US4804442A (en) * 1986-07-31 1989-02-14 Olin Corporation Ultrapure hydrazine production
US5035775A (en) * 1986-07-31 1991-07-30 Olin Corporation Ultrapure hydrazine production
FR2815956B1 (fr) * 2000-10-26 2003-05-23 Atofina Procede d'obtention d'hydrazine anhydre et dispositif pour sa mise en oeuvre
CN105254527A (zh) * 2015-11-17 2016-01-20 宜宾海丰和锐有限公司 一种制备高浓度水合肼的方法
SG11201903618UA (en) * 2016-11-08 2019-05-30 Matheson Tri Gas Inc Removal of moisture from hydrazine
CN115837260B (zh) * 2023-02-23 2023-05-30 大庆华理生物技术股份有限公司 油酸酰胺化脱胺回收装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1416206A (en) * 1922-05-16 Wilbert j
US910858A (en) * 1907-10-31 1909-01-26 Friedrich Raschig Production of hydrazin.
US1833717A (en) * 1927-01-13 1931-11-24 Heat Treating Company Purification and concentration of liquids
FR744157A (fr) * 1931-10-17
US2290636A (en) * 1940-12-24 1942-07-21 Shell Dev Distillation process
US2465959A (en) * 1946-06-28 1949-03-29 Commercial Solvents Corp Recovery of nitromethane from aqueous alcoholic mixtures thereof
US2537791A (en) * 1946-08-17 1951-01-09 Edwal Lab Inc Method for production of hydrazine and/or hydrazine hydrate

Also Published As

Publication number Publication date
BE496059A (fr)
GB703065A (en) 1954-01-27
DE1150206B (de) 1963-06-12
NL209951A (fr)
BE550445A (fr)
NL109561C (fr)
FR1019168A (fr) 1953-01-19
US2698286A (en) 1954-12-28
CH291184A (fr) 1953-06-15

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