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A process for recovery of valuable materials and waterfrom the aqueous effluent from purification of polycarboxyhc acidscomprising:a) precipitating heavy metals like cobalt and manganese in the aqueous effluent by adjusting the pH of the effluent to 10 to 12 with an alkali / alkaline earth metal hydroxide and cooling the effluent to 35 to 40°C followed by separation of the precipitate from the effluent; andb) further adjusting the pH of the effluent to 9 -10.2 with an acid followed by subjecting the effluent to ultrafiltration and reverse osmosis to recover demineralised water therefrom.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
22 March 2002
Publication Number
Publication Type
Invention Field
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2005-09-30
Renewal Date
Applicants
RELIANCE INDUSTRIES LIMITED
MAKER CHAMBER IV,
NARIMAN POINT,
MUMBAI 400021,
MAHARASHTRA,
INDIA.
Inventors
1. THOMAS MATHEW
RELIANCE INDUSTRIES LIMITED,
B-4, MIDC INDUSTRIAL AREA,
PATALGANGA 410220,
RAIGAD,
MAHARASHTRA,
INDIA.
2. FOTEDAR SUNIL
RELIANCE INDUSTRIES LIMITED,
B-4, MIDC INDUSTRIAL AREA,
PATALGANGA 410220,
RAIGAD,
MAHARASHTRA,
INDIA.
3. DAFE SHATANU
RELIANCE INDUSTRIES LIMITED,
B-4, MIDC INDUSTRIAL AREA,
PATALGANGA 410220,
RAIGAD,
MAHARASHTRA,
INDIA.
4. BHATKHANDE RAJESH MADHAV
RELIANCE INDUSTRIES LIMITED,
B-4, MIDC INDUSTRIAL AREA,
PATALGANGA 410220,
RAIGAD,
MAHARASHTRA,
INDIA.
5. MALSHE VINOD CHITAMANI
CHEMICAL TECHNOLOGY,
MATUNGA,
MUMBAI 400019,
MAHARASHTRA,
INDIA.
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 288-mum-2002-correspondence(ipo)-(22-03-2002).pdf | 2002-03-22 |
| 2 | 288-mum-2002-form 26(12-11-2003).pdf | 2003-11-12 |
| 3 | 288-mum-2002-form 13(12-11-2003).pdf | 2003-11-12 |
| 4 | 288-mum-2002-correspondence(24-12-2004).pdf | 2004-12-24 |
| 5 | 288-MUM-2002-CORRESPONDENCE(RENEWAL PAYMENT LETTER)-(20-12-2006).pdf | 2006-12-20 |
| 6 | 288-MUM-2002-CORRESPONDENCE(RENEWAL PAYMENT LETTER)-(18-03-2011).pdf | 2011-03-18 |
| 7 | Form 27 [30-03-2016(online)].pdf | 2016-03-30 |
| 8 | Form 27 [24-03-2017(online)].pdf | 2017-03-24 |
| 9 | 288-MUM-2002-RELEVANT DOCUMENTS [27-03-2018(online)].pdf | 2018-03-27 |
| 10 | Form 27_IN196252.pdf | 2018-08-08 |
| 11 | abstract1.jpg | 2018-08-08 |
| 12 | 288-mum-2002-form 3(22-3-2002).pdf | 2018-08-08 |
| 13 | 288-mum-2002-form 26(22-3-2002).pdf | 2018-08-08 |
| 14 | 288-mum-2002-form 2(granted)-(12-1-2004).pdf | 2018-08-08 |
| 16 | 288-mum-2002-form 19(22-7-2003).pdf | 2018-08-08 |
| 17 | 288-mum-2002-form 1(22-3-2002).pdf | 2018-08-08 |
| 18 | 288-mum-2002-drawing(22-3-2002).pdf | 2018-08-08 |
| 19 | 288-MUM-2002-CORRESPONDENCE(RENEWAL PAYMENT LETTER)-(5-3-2012).pdf | 2018-08-08 |
| 20 | 288-MUM-2002-CORRESPONDENCE(RENEWAL PAYMENT LETTER)-(21-3-2014).pdf | 2018-08-08 |
| 21 | 288-mum-2002-claims(granted)-(12-1-2004).pdf | 2018-08-08 |
| 23 | 288-mum-2002-cancelled pages(12-2-2004).pdf | 2018-08-08 |
| 24 | 288-MUM-2002-RELEVANT DOCUMENTS [28-03-2019(online)].pdf | 2019-03-28 |
| 25 | 288-MUM-2002-RELEVANT DOCUMENTS [31-03-2020(online)].pdf | 2020-03-31 |