JPS54125643A - Decolorization of decabromobiphenyl - Google Patents

Decolorization of decabromobiphenyl

Info

Publication number
JPS54125643A
JPS54125643A JP3304678A JP3304678A JPS54125643A JP S54125643 A JPS54125643 A JP S54125643A JP 3304678 A JP3304678 A JP 3304678A JP 3304678 A JP3304678 A JP 3304678A JP S54125643 A JPS54125643 A JP S54125643A
Authority
JP
Japan
Prior art keywords
bromine
decabromobiphenyl
unreactive
discolored
biphenyl
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.)
Pending
Application number
JP3304678A
Other languages
Japanese (ja)
Inventor
Katsuyoshi Sasagawa
Eiichi Noda
Yoshiaki Noguchi
Masao Imai
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP3304678A priority Critical patent/JPS54125643A/en
Publication of JPS54125643A publication Critical patent/JPS54125643A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To decolorize the title compound useful as a flame retardant, by heating a discolored decabromobiphenyl obtained from bromination of biphenyl with an excess of bromine in the presence of an aqueous solution of a reducing agent and a specific solvent which is unreactive with the bromine in the presence of water.
CONSTITUTION: Discolored decabromobiphenyl, obtained by brominating biphenyl with bromine in an amount more than that theretically required in the presence of a catalyst, e.g. AlCl3, and by removing the bromine,is heated in the presence of an aqueous solution of a reducing agent, e.g. NaSO3 or KSO3, and an organic solvent, e.g. hexane or heptane, unreactive with the bromine in the presence of water, and decolorized.
EFFECT: No by-product is formed from decolorization step, and large-scale reactor or solvent recovery units are unnecessary.
COPYRIGHT: (C)1979,JPO&Japio
JP3304678A 1978-03-24 1978-03-24 Decolorization of decabromobiphenyl Pending JPS54125643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3304678A JPS54125643A (en) 1978-03-24 1978-03-24 Decolorization of decabromobiphenyl

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3304678A JPS54125643A (en) 1978-03-24 1978-03-24 Decolorization of decabromobiphenyl

Publications (1)

Publication Number Publication Date
JPS54125643A true JPS54125643A (en) 1979-09-29

Family

ID=12375831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3304678A Pending JPS54125643A (en) 1978-03-24 1978-03-24 Decolorization of decabromobiphenyl

Country Status (1)

Country Link
JP (1) JPS54125643A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010509346A (en) * 2006-11-09 2010-03-25 アルベマール・コーポレーシヨン Treatment of solid brominated aromatic organic compounds containing occluded bromine.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010509346A (en) * 2006-11-09 2010-03-25 アルベマール・コーポレーシヨン Treatment of solid brominated aromatic organic compounds containing occluded bromine.

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