GB1411870A - Process for purification of hydroquinone - Google Patents

Process for purification of hydroquinone

Info

Publication number
GB1411870A
GB1411870A GB4338573A GB4338573A GB1411870A GB 1411870 A GB1411870 A GB 1411870A GB 4338573 A GB4338573 A GB 4338573A GB 4338573 A GB4338573 A GB 4338573A GB 1411870 A GB1411870 A GB 1411870A
Authority
GB
United Kingdom
Prior art keywords
sublimation
pipe
porous plate
passed
gas
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
GB4338573A
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.)
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 GB1411870A publication Critical patent/GB1411870A/en
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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
GB4338573A 1972-09-14 1973-09-14 Process for purification of hydroquinone Expired GB1411870A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1411870A true GB1411870A (en) 1975-10-29

Family

ID=14056098

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4338573A Expired GB1411870A (en) 1972-09-14 1973-09-14 Process for purification of hydroquinone

Country Status (4)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103480174A (zh) * 2013-09-11 2014-01-01 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

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
FR2905374B1 (fr) 2006-09-04 2008-11-14 Rhodia Recherches & Tech Procede de preparation d'hydroquinone de purete elevee.
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

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103480174A (zh) * 2013-09-11 2014-01-01 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
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

Also Published As

Publication number Publication date
JPS4948626A (https=) 1974-05-11
US3953528A (en) 1976-04-27
FR2200227A1 (https=) 1974-04-19
FR2200227B1 (https=) 1976-05-14
JPS563855B2 (https=) 1981-01-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee