SU1577244A1 - Process for preparing thermoexpanding graphite - Google Patents

Process for preparing thermoexpanding graphite

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Publication number
SU1577244A1
SU1577244A1 SU4341308/26A SU4341308A SU1577244A1 SU 1577244 A1 SU1577244 A1 SU 1577244A1 SU 4341308/26 A SU4341308/26 A SU 4341308/26A SU 4341308 A SU4341308 A SU 4341308A SU 1577244 A1 SU1577244 A1 SU 1577244A1
Authority
SU
USSR - Soviet Union
Prior art keywords
graphite
thermoexpanding
preparing
carbamide
tbl
Prior art date
Application number
SU4341308/26A
Other languages
Russian (ru)
Inventor
В.В. Шапранов
А.П. Ярошенко
Е.С. Рудаков
В.А. Шабловский
В.А. Кучеренко
В.С. Чуприна
А.П. Фоменко
И.В. Домарев
Г.Г. Житник
В.Л. Мелентьев
Original Assignee
Институт физико-органической химии и углехимии АН УССР
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 Институт физико-органической химии и углехимии АН УССР filed Critical Институт физико-органической химии и углехимии АН УССР
Priority to SU4341308/26A priority Critical patent/SU1577244A1/en
Application granted granted Critical
Publication of SU1577244A1 publication Critical patent/SU1577244A1/en

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Abstract

FIELD: technology of graphite. SUBSTANCE: the process for preparing thermoexpanding graphite comprises heating a graphite powder at 300-600 C for 0.5-2.0 hours in an atmosphere of air and oxygen and subsequently cooling to room temperature and treating graphite with an aqueous solution of chromium anhydride, concentrated sulfuric acid, carbamide and a dry magnesium oxide based neutralizing agent. The expansion coefficients of the resulting thermoexpanding graphite at 1280°C from ГЛ-3, ГЛ-2 and ГЛ-1 are 45, 80-120, 110-120 cm/g, respectively. EFFECT: higher expansion coefficient of graphite. 2 tbl
SU4341308/26A 1987-11-11 1987-11-11 Process for preparing thermoexpanding graphite SU1577244A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4341308/26A SU1577244A1 (en) 1987-11-11 1987-11-11 Process for preparing thermoexpanding graphite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4341308/26A SU1577244A1 (en) 1987-11-11 1987-11-11 Process for preparing thermoexpanding graphite

Publications (1)

Publication Number Publication Date
SU1577244A1 true SU1577244A1 (en) 1995-03-20

Family

ID=60529283

Family Applications (1)

Application Number Title Priority Date Filing Date
SU4341308/26A SU1577244A1 (en) 1987-11-11 1987-11-11 Process for preparing thermoexpanding graphite

Country Status (1)

Country Link
SU (1) SU1577244A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1074747C (en) * 1995-04-28 2001-11-14 V·V·阿吾迪夫 Process and device for obtaining oxidised graphite
US6406612B1 (en) 1999-05-20 2002-06-18 Graftech Inc. Expandable graphite and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1074747C (en) * 1995-04-28 2001-11-14 V·V·阿吾迪夫 Process and device for obtaining oxidised graphite
US6406612B1 (en) 1999-05-20 2002-06-18 Graftech Inc. Expandable graphite and method

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