FR2200227A1 - - Google Patents

Info

Publication number
FR2200227A1
FR2200227A1 FR7332574A FR7332574A FR2200227A1 FR 2200227 A1 FR2200227 A1 FR 2200227A1 FR 7332574 A FR7332574 A FR 7332574A FR 7332574 A FR7332574 A FR 7332574A FR 2200227 A1 FR2200227 A1 FR 2200227A1
Authority
FR
France
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.)
Granted
Application number
FR7332574A
Other languages
French (fr)
Other versions
FR2200227B1 (OSRAM
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of FR2200227A1 publication Critical patent/FR2200227A1/fr
Application granted granted Critical
Publication of FR2200227B1 publication Critical patent/FR2200227B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
    • C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR7332574A 1972-09-14 1973-09-11 Expired FR2200227B1 (OSRAM)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9250372A JPS563855B2 (OSRAM) 1972-09-14 1972-09-14

Publications (2)

Publication Number Publication Date
FR2200227A1 true FR2200227A1 (OSRAM) 1974-04-19
FR2200227B1 FR2200227B1 (OSRAM) 1976-05-14

Family

ID=14056098

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7332574A Expired FR2200227B1 (OSRAM) 1972-09-14 1973-09-11

Country Status (4)

Country Link
US (1) US3953528A (OSRAM)
JP (1) JPS563855B2 (OSRAM)
FR (1) FR2200227B1 (OSRAM)
GB (1) GB1411870A (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2905374A1 (fr) * 2006-09-04 2008-03-07 Rhodia Recherches & Tech Procede de preparation d'hydroquinone de purete elevee.

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6350921B1 (en) 1998-02-24 2002-02-26 Indspec Chemical Corporation Process for the production of a dihydroxybenzene and dicarbinol from diisopropylbenzene
FR2903098B1 (fr) * 2006-06-29 2012-08-03 Rhodia Recherches & Tech Nouvelle forme d'hydroquinone et son procede d'obtention
CN101225025B (zh) * 2008-02-13 2010-09-29 上海华谊丙烯酸有限公司 一种分离苯酚羟基化反应液中邻/对苯二酚的方法
JP5946252B2 (ja) * 2011-07-19 2016-07-06 株式会社アルバック 精製装置
JP5668988B2 (ja) * 2011-09-15 2015-02-12 有限会社桐山製作所 昇華性物質の精製装置
CN103480174B (zh) * 2013-09-11 2015-09-02 江口县苗药生物科技有限公司 一种高纯度艾片提取装置及其提取方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1446551A (en) * 1920-12-13 1923-02-27 Dissosway Chemical Company Inc Process of purifying resorcin
US1446564A (en) * 1921-01-11 1923-02-27 Dissosway Chemical Company Inc Sublimation apparatus
US3834997A (en) * 1972-07-14 1974-09-10 Dow Chemical Co Method for the separation of ortho-and para-dihydroxy benzene isomers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2905374A1 (fr) * 2006-09-04 2008-03-07 Rhodia Recherches & Tech Procede de preparation d'hydroquinone de purete elevee.
WO2008029018A1 (fr) * 2006-09-04 2008-03-13 Rhodia Operations Procede de preparation d'hydroquinone de purete elevee
US8247620B2 (en) 2006-09-04 2012-08-21 Rhodia Operations Production of highly pure hydroquinone

Also Published As

Publication number Publication date
GB1411870A (en) 1975-10-29
FR2200227B1 (OSRAM) 1976-05-14
JPS4948626A (OSRAM) 1974-05-11
US3953528A (en) 1976-04-27
JPS563855B2 (OSRAM) 1981-01-27

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Legal Events

Date Code Title Description
ST Notification of lapse