Patents by Inventor Pavankumar Aduri
Pavankumar Aduri has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11602737Abstract: The present disclosure relates to an ionic liquid composition and a process for its preparation. The process of the present disclosure is simple, single pot and efficient process for preparing the ionic liquid composition which is effective in a Friedel Craft reaction like, alkylation reaction, trans-alkylation, and acylation. The present disclosure envisages an ionic liquid composition comprising at least one metal hydroxide; at least one metal halide; and at least one solvent. Also envisaged is a process for preparing an ionic liquid composition. The process comprises mixing in a reaction vessel, at least one metal hydroxide and at least one metal halide in the presence of at least one solvent under a nitrogen atmosphere and continuous stirring followed by cooling under continuous stirring to obtain the ionic liquid composition.Type: GrantFiled: April 4, 2020Date of Patent: March 14, 2023Assignee: RELIANCE INDUSTRIES LIMITEDInventors: Vibhuti Dukhande, Parasu Veera Uppara, Pavankumar Aduri, Vivek Prabhakar Raje, Prathmesh Pradeep Salvi, Viswanath Kotra, Mangesh Sakhalkar, Uday Meghashyam Ratnaparkhi
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Patent number: 11370723Abstract: The present disclosure relates to a process for preparing linear alkyl benzne (LAB). The process comprises alkylation of benzene with an alkylating agent in the presence of an ionic liquid to obtain a first product mixture comprising a first organic phase and a first aqueous phase comprising first partially spent ionic liquid. The first organic phase is deacidified and fractionally distilled to obtain a fraction comprising LAB and a fraction comprising HAB. The fraction comprising HAB is transalkylated with benzene in the presence of the ionic liquid to obtain a second product mixture comprising a second organic phase comprising LAB and a second aqueous phase comprising second partially spent ionic liquid. The partially spent ionic liquids are regenerated, and reused in the steps of alkylation or transalkylation for at least 6 cycles.Type: GrantFiled: December 9, 2019Date of Patent: June 28, 2022Assignee: RELIANCE INDUSTRIES LIMITEDInventors: Viswanath Kotra, Pavankumar Aduri, Vibhuti Dhukande, Mangesh Raghunath Sakhalkar, Uday Meghashyam Ratnaparkhi, Rahul Kumbhar, Suresh Iyengar, Rahul Mahadeo Dhawade, Romal Chafle, Parasuveera Uppara, Gordhan Das Goyal
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Publication number: 20220033323Abstract: The present disclosure relates to a process for preparing linear alkyl benzne (LAB). The process comprises alkylation of benzene with an alkylating agent in the presence of an ionic liquid to obtain a first product mixture comprising a first organic phase and a first aqueous phase comprising first partially spent ionic liquid. The first organic phase is deacidified and fractionally distilled to obtain a fraction comprising LAB and a fraction comprising HAB. The fraction comprising HAB is transalkylated with benzene in the presence of the ionic liquid to obtain a second product mixture comprising a second organic phase comprising LAB and a second aqueous phase comprising second partially spent ionic liquid. The partially spent ionic liquids are regenerated, and reused in the steps of alkylation or transalkylation for at least 6 cycles.Type: ApplicationFiled: December 9, 2019Publication date: February 3, 2022Applicant: Reliance Industries LimitedInventors: Viswanath Kotra, Pavankumar Aduri, Vibhuti Dhukande, Mangesh Raghunath Sakhalkar, Uday Meghashyam Ratnaparkhi, Rahul Kumbhar, Suresh Iyengar, Rahul Mahadeo Dhawade, Romal Chafle, Parasuveera Uppara, Gordhan Das Goyal
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Publication number: 20200238261Abstract: The present disclosure relates to an ionic liquid composition and a process for its preparation. The process of the present disclosure is simple, single pot and efficient process for preparing the ionic liquid composition which is effective in a Friedel Craft reaction like, alkylation reaction, trans-alkylation, and acylation. The present disclosure envisages an ionic liquid composition comprising at least one metal hydroxide; at least one metal halide; and at least one solvent. Also envisaged is a process for preparing an ionic liquid composition. The process comprises mixing in a reaction vessel, at least one metal hydroxide and at least one metal halide in the presence of at least one solvent under a nitrogen atmosphere and continuous stirring followed by cooling under continuous stirring to obtain the ionic liquid composition.Type: ApplicationFiled: April 4, 2020Publication date: July 30, 2020Applicant: RELIANCE INDUSTRIES LIMITEDInventors: Vibhuti DUKHANDE, Parasu Veera UPPARA, Pavankumar ADURI, Vivek Prabhakar RAJE, Prathmesh Pradeep SALVI, Viswanath KOTRA, Mangesh SAKHALKAR, Uday Meghashyam RATNAPARKHI
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Publication number: 20190336959Abstract: The present disclosure provides a process for treatment a spent ionic liquid, comprising: mixing the spent ionic liquid with a first fluid medium and water to obtain slurry comprising a solid fraction and a liquid fraction; separating the solid fraction from slurry to obtain a filtrate and a residue comprising hydrated ionic solids; followed by drying the residue comprising the hydrated ionic solids at a temperature in the range of 60° C. to 120° C. to obtain treated ionic solids; and evaporating the filtrate to recover the fluid medium. The process of the present disclosure further comprises a step of contacting the treated ionic solids with at least one second fluid medium to separate an active ionic liquid.Type: ApplicationFiled: December 6, 2017Publication date: November 7, 2019Applicant: Reliance Industries LimitedInventors: Vibhuti DUKHANDE, Visvanath KOTRA, Parasuveera UPPARA, Pavankumar ADURI, Suresh IYENGAR, Prashant TANGADE, Akhilesh YADAV
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Publication number: 20190060883Abstract: Described herein are magnetic particle-ionic liquid composite materials, and methods of making and use thereof. The magnetic particle-ionic liquid composite materials can comprise an ionic liquid conjugated to a magnetic particle, wherein the ionic liquid comprises at least one cation and at least one metal halide anion; and wherein the ionic liquid is not covalently bound to the magnetic particle.Type: ApplicationFiled: August 27, 2018Publication date: February 28, 2019Inventors: Robin D. Rogers, Rajkumar Kore, Anand D. Sawant, Pavankumar Aduri
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Publication number: 20180318808Abstract: The present disclosure relates to an ionic liquid composition and a process for its preparation. The process of the present disclosure is simple, single pot and efficient process for preparing the ionic liquid composition which is effective in a Friedel Craft reaction like, alkylation reaction, trans-alkylation, and acylation. The present disclosure envisages an ionic liquid composition comprising at least one metal hydroxide; at least one metal halide; and at least one solvent. Also envisaged is a process for preparing an ionic liquid composition. The process comprises mixing in a reaction vessel, at least one metal hydroxide and at least one metal halide in the presence of at least one solvent under a nitrogen atmosphere and continuous stirring followed by cooling under continuous stirring to obtain the ionic liquid composition.Type: ApplicationFiled: November 4, 2016Publication date: November 8, 2018Applicant: RELIANCE INDUSTRIES LIMITEDInventors: Vibhuti DUKHANDE, Parasu Veera UPPARA, Pavankumar ADURI, Vivek Prabhakar RAJE, Prathmesh Pradeep SALVI, Viswanath KOTRA, Mangesh SAKHALKAR, Uday Meghashyam RATNAPARKHI
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Patent number: 9932287Abstract: The present disclosure provides a process for oxidation of p-xylene to terephthalic acid. Recovery of fluid medium and valuable chemicals in carried out using p-xylene as fluid medium which is also the starting material. The recovered stream containing p-xylene, acetic acid and other valuable chemicals is recycled to the oxidation step. The process disclosed in the present disclosure is energy efficient and cost effective.Type: GrantFiled: February 19, 2015Date of Patent: April 3, 2018Assignee: Reliance Industries LimitedInventors: Vivek Shankaranarayanan, Suresh Shantilal Jain, Pavankumar Aduri, Rajesh Ratnakar Terdalkar, Nitin Haribhau Patil, Parasuveera Uppara
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Patent number: 9776943Abstract: The present disclosure provides a process for recovering and recycling a catalyst from the mother liquor generated during the production of aromatic carboxylic acids. The process comprises treating the mother liquor with an alkyl aromatic compound and further treating the first aqueous layer obtained with an ionic liquid to obtain a catalyst rich aqueous mixture. The catalyst rich aqueous mixture is recycled to the oxidation reactor.Type: GrantFiled: February 19, 2015Date of Patent: October 3, 2017Assignee: Reliance Industries LimitedInventors: Suresh Shantilal Jain, Pavankumar Aduri, Vivek Shankaranarayanan, Parasuveera Uppara
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Patent number: 9725394Abstract: The present disclosure provides a composition for preparing terephthalic acid; said composition comprises p-Toluic acid in an amount of 0.05% to 4% with respect to the total mass of the composition; at least one catalyst in an amount of 0.02% to 2.5% with respect to the total mass of the composition; at least one ionic liquid in an amount of 0.04% to 50% with respect to the total mass of the composition; at least one carboxylic acid solvent; and p-xylene. The present disclosure also provides a process for preparing terephthalic acid.Type: GrantFiled: April 17, 2014Date of Patent: August 8, 2017Assignee: RELIANCE INDUSTRIES LIMITEDInventors: Suresh Shantilal Jain, Pavankumar Aduri, Parasu Veera Uppara, Prashant Sudhakar Tangade
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Publication number: 20170203286Abstract: The present disclosure relates to preparation of liquid salt including but not limiting to ionic liquid and applications thereof. More particularly, the present disclosure provides a process for preparing ionic liquid which comprises reacting at least one electron-pair acceptor and at least one electron-pair donor to form an adduct, and reacting the adduct with at least one electron-pair acceptor to prepare said salt. The present disclosure also provides for applications of the ionic liquid prepared in the present disclosure.Type: ApplicationFiled: July 9, 2015Publication date: July 20, 2017Applicant: RELIANCE INDUSTRIES LIMITEDInventors: Parasuveera UPPARA, Vivek RAJE, Pavankumar ADURI, Vibhuti DUKHANDE, Prathmesh Pradeep SALVI
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Publication number: 20170182485Abstract: The present disclosure relates to ionic liquid-solvent complex comprising cation and anion and are prepared in the presence of a solvent. The present disclosure also relates to the process for preparing ionic liquid-solvent complex and also to a process for producing linear alkyl benzene using the ionic liquid-solvent complex. The present disclosure also relates to various applications of the ionic liquid-solvent complex.Type: ApplicationFiled: July 10, 2015Publication date: June 29, 2017Applicant: RELIANCE INDUSTRIES LIMITEDInventors: Parasuveera Uppara, Vivek RAJE, Pavankumar ADURI, Vibhuti DUKHANDE
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Publication number: 20170166508Abstract: The present disclosure provides a process for recovering and recycling a catalyst from the mother liquor generated during the production of aromatic carboxylic acids. The process comprises treating the mother liquor with an alkyl aromatic compound and further treating the first aqueous layer obtained with an ionic liquid to obtain a catalyst rich aqueous mixture. The catalyst rich aqueous mixture is recycled to the oxidation reactor.Type: ApplicationFiled: February 19, 2015Publication date: June 15, 2017Applicant: Reliance Industries LimitedInventors: Suresh Shantilal Jain, Pavankumar Aduri, Vivek Shankaranarayanan, Parasuveera Uppara
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Patent number: 9624248Abstract: The present disclosure provides an ionic liquid compound of Formula (I) and its application in reactions such as alkylation, arylation, acylation, diels alder and oligomerization, The present disclosure also provides a process for preparing the ionic liquid compound of Formula (I) which involves preparing an ionic salt complex represented by Formula [(NR1R2R3)iM1]n+[Xj]n? by mixing an amine represented by Formula NR1R2R3 and a metal salt represented by formula M1Xj; and mixing the ionic salt complex and a metal salt represented by formula M2Yk to obtain the ionic liquid compound.Type: GrantFiled: April 21, 2014Date of Patent: April 18, 2017Assignee: Reliance Industries LimitedInventors: Pavankumar Aduri, Parasu Veera Uppara, Viswanath Kotra, Mangesh Sakhalkar, Vibhuti Dukhande
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Patent number: 9604897Abstract: The present disclosure provides a composition for preparing aryl carboxylic acid; said composition comprising: at least one ionic liquid, at least one catalyst, at least one non-oxidizable polar solvent, and at least one oxidizable multi-alkylated arylene compound with no two successive ring positions bearing alkyl group. The present disclosure also provides a process for preparing aryl carboxylic acid.Type: GrantFiled: April 25, 2014Date of Patent: March 28, 2017Assignee: Reliance Industries LimitedInventors: Suresh Shantilal Jain, Pavankumar Aduri, Uday Ratnaparkhi, Parasu Veera Uppara
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Patent number: 9561499Abstract: The present disclosure provides a process for regenerating the deactivated ionic compound. The process involves mixing a deactivated ionic compound with at least one solvent such as ethyl acetate and neutralizing with at least one base such as triethylamine and tert-butyl amine to obtain a precipitate. The obtained precipitate is filtered to obtain a residue which is then washed with a solvent such as dichloromethane to obtain the ionic compound.Type: GrantFiled: April 21, 2014Date of Patent: February 7, 2017Assignee: RELIANCE INDUSTRIES LIMITEDInventors: Pavankumar Aduri, Parasu Veera Uppara, Viswanath Kotra, Mangesh Sakhalkar, Vibhuti Dukhande, Vivek Prabhakar Raje
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Publication number: 20160367976Abstract: The present disclosure provides an ionic fluid pre-cursor being a reaction product of at least one compound of formula (I) and at least one hydrogen donor and having a softening point less than the melting point or softening point of said compound of formula (I) MxAy.zH2O The present disclosure also provides a process for preparing the ionic fluid pre-cursor. The present disclosure further provides an ionic fluid and a process for preparing the same.Type: ApplicationFiled: September 6, 2016Publication date: December 22, 2016Applicant: RELIANCE INDUSTRIES LIMITEDInventors: Parasu Veera UPPARA, Pavankumar ADURI, Subarna SHYAMROY
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Publication number: 20160347700Abstract: The present disclosure provides a process for oxidation of p-xylene to terephalic acid. Recovery of fluid medium and valuable chemicals in carried out using p-xylene as fluid medium which is also the starting material. The recovered stream containing p-xylene, acetic acid and other valuable chemicals is recycled to the oxidation step. The process disclosed in the present disclosure is energy efficinnt and cost effective.Type: ApplicationFiled: February 19, 2015Publication date: December 1, 2016Applicant: RELIANCE INDUSTRIES LIMITEDInventors: Vivek SHANKARANARAYANAN, Suresh Shantilal JAIN, Pavankumar ADURI, Rajesh Ratnakar TERDALKAR, Nitin Haribhau PATIL, Parasuveera UPPARA
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Publication number: 20160107972Abstract: The present disclosure provides a composition for preparing aryl carboxylic acid; said composition comprising: at least one ionic liquid, at least one catalyst, at least one non-oxidizable polar solvent, and at least one oxidizable multi-alkylated arylene compound with no two successive ring positions bearing alkyl group. The present disclosure also provides a process for preparing aryl carboxylic acid.Type: ApplicationFiled: April 25, 2014Publication date: April 21, 2016Applicant: RELIANCE INDUSTRIES LIMITEDInventors: Suresh Shantilal JAIN, Pavankumar ADURI, Uday RATNAPARKHI, Parasu Veera UPPARA
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Publication number: 20160083325Abstract: The present disclosure provides a composition for preparing terephthalic acid; said composition comprises p-Toluic acid in an amount of 0.05% to 4% with respect to the total mass of the composition; at least one catalyst in an amount of 0.02% to 2.5% with respect to the total mass of the composition; at least one ionic liquid in an amount of 0.04% to 50% with respect to the total mass of the composition; at least one carboxylic acid solvent; and p-xylene. The present disclosure also provides a process for preparing terephthalic acid.Type: ApplicationFiled: April 17, 2014Publication date: March 24, 2016Inventors: Suresh Shantilal JAIN, Pavankumar ADURI, Parasu Veera UPPARA, Prashant Sudhakar TANGADE