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(19)

(11)

2 557 000

(13)

(51)

IPC

C07C7/14(2006-01-01)

C07C7/177(2006-01-01)

C07C15/24(2006-01-01)

(21) (22)

Application

2014132980/04, 2014-08-11

(24)

Start date

2014-08-11

(22)

Actual filing date

2014-08-11

(45)

Published

2015-07-20

(72)

Inventor

Nesterov Oleg NikolaevichGil'Manov Khamit KhamisovichSakhabutdinov Anas GaptynurovichShepelin Vladimir AleksandrovichJakupov Almas AjratovichSilitrina Nadezhda AlekseevnaSharifullin Il'Fat GabdulvakhitovichShatilov Vladimir MikhajlovichPonomarev Sergej IvanovichAmirkhanov Akhtjam TalipovichSabirov Ajrat RinatovichChurakov Jurij Nikolaevich

(73)

Holder

Publichnoe Aktsionernoe Obshchestvo

METHOD OF PRODUCING NAPHTHALENE Russian patent published in 2015 - IPC C07C7/14 C07C7/177 C07C15/24

Abstract RU 2557000 C1

FIELD: chemistry.

SUBSTANCE: fraction is held at temperature of 200-300°C, pressure of 0.1-1.0 MPa for 2-10 hours, and the treated fraction is then fed for atmospheric-vacuum simple distillation and the distillate is then fed for extracting naphthalene by crystallisation with an existing method.

EFFECT: use of the present method enables to obtain naphthalene of high purity with a shorter thermal exposure time and a lower temperature.

3 cl, 11 ex, 1 tbl

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RU 2 557 000 C1

Authors

Nesterov Oleg Nikolaevich

Gil'Manov Khamit Khamisovich

Sakhabutdinov Anas Gaptynurovich

Shepelin Vladimir Aleksandrovich

Jakupov Almas Ajratovich

Silitrina Nadezhda Alekseevna

Sharifullin Il'Fat Gabdulvakhitovich

Shatilov Vladimir Mikhajlovich

Ponomarev Sergej Ivanovich

Amirkhanov Akhtjam Talipovich

Sabirov Ajrat Rinatovich

Churakov Jurij Nikolaevich

Dates

2015-07-20—Published

2014-08-11—Filed