"Process For Purification Of 6 Nitro 2,2,4,4 Tetrafluorobenzodioxane"

Abstract: The present invention relates to a process for purification of 6-nitro-2,2,4,4-tetrafluorobenzodioxane obtained by recrystallization from hexane. It has been identified in the present invention that use of hexane as a solvent yields 6-nitro-2,2,4,4-tetrafluorobenzodioxane with purity upto 99.8 %. Hexane can be recovered and recycled.

Patent Information

Application #

Filing Date

09 May 2011

Publication Number

22/2017

Publication Type

INA

Invention Field

CHEMICAL

Status

Email

Parent Application

Patent Number

Legal Status

Grant Date

2019-09-21

Renewal Date

Applicants

SRF LIMITED

BLOCK-C, SECTOR 45, UNICREST BUILDING, GURGAON, HARYANA (INDIA);

Inventors

1. DHINGRA, SURENDER

SRF LIMITED, BLOCK-C, SECTOR 45, UNICREST BUILDING, GURGAON, HARYANA (INDIA);

2. KUMAR, SATISH

SRF LIMITED, BLOCK-C, SECTOR 45, UNICREST BUILDING, GURGAON, HARYANA (INDIA);

3. SAXENA, RAHUL

SRF LIMITED, BLOCK-C, SECTOR 45, UNICREST BUILDING, GURGAON, HARYANA (INDIA);

4. ANAND, RAJEEP

SRF LIMITED, BLOCK-C, SECTOR 45, UNICREST BUILDING, GURGAON, HARYANA (INDIA);

Specification

Documents

Application Documents

#	Name	Date
1	1345-del-2011-Form-1-(09-11-2011).pdf	2011-11-09
2	1345-del-2011-Correspondence-Others-(09-11-2011).pdf	2011-11-09
3	1345-del-2011-GPA-(07-12-2011).pdf	2011-12-07
4	1345-del-2011-Correspondence Others-(07-12-2011).pdf	2011-12-07
5	1345-del-2011-Form-5.pdf	2012-01-11
6	1345-del-2011-Form-3.pdf	2012-01-11
7	1345-del-2011-Form-2.pdf	2012-01-11
8	1345-del-2011-Form-1.pdf	2012-01-11
9	1345-del-2011-Description (Complete).pdf	2012-01-11
10	1345-del-2011-Correspondence-others.pdf	2012-01-11
11	1345-del-2011-Claims.pdf	2012-01-11
12	1345-del-2011-Abstract.pdf	2012-01-11
13	1345-del-2011-Form-18-(18-10-2013).pdf	2013-10-18
14	1345-del-2011-Correspondence-Others-(18-10-2013).pdf	2013-10-18
15	1345-DEL-2011-FER.pdf	2018-05-25
16	1345-DEL-2011-RELEVANT DOCUMENTS [23-11-2018(online)].pdf	2018-11-23
17	1345-del-2011-OTHERS [23-11-2018(online)].pdf	2018-11-23
18	1345-DEL-2011-MARKED COPIES OF AMENDEMENTS [23-11-2018(online)].pdf	2018-11-23
19	1345-DEL-2011-FORM-26 [23-11-2018(online)].pdf	2018-11-23
20	1345-DEL-2011-FORM 13 [23-11-2018(online)].pdf	2018-11-23
21	1345-del-2011-FER_SER_REPLY [23-11-2018(online)].pdf	2018-11-23
22	1345-del-2011-CORRESPONDENCE [23-11-2018(online)].pdf	2018-11-23
23	1345-del-2011-CLAIMS [23-11-2018(online)].pdf	2018-11-23
24	1345-DEL-2011-AMENDED DOCUMENTS [23-11-2018(online)].pdf	2018-11-23
25	1345-del-2011-ABSTRACT [23-11-2018(online)].pdf	2018-11-23
26	1345-DEL-2011-PatentCertificate21-09-2019.pdf	2019-09-21
27	1345-DEL-2011-IntimationOfGrant21-09-2019.pdf	2019-09-21

Search Strategy

1	1345srch_23-05-2018.pdf