Council of Scientific and Industrial Research

National Mineral Development Corporation Limited

Bharat Petroleum Corporation Limited

Hari Chand Bajaj

Raksh Vir Jasra

Rajesh Shantilal Somani

Haresh Mahipatlal Mody

Jatin Rameshchandra Chunawala

Pushpito Kumar Ghosh

Suresh Chandra

Kamlesh Kumar

Devendra Lalijibhai Ghelani

Hemal Narendrakumar Ranpara

Dipti Jivanbhai Barochiya

Maheshkumar Ramniklal Gandhi

Pratyush Maiti

Rukhsana Ilyas Kureshy

Arvindkumar Balvantrai Boricha

Keshav Rao

Maharaj Kishen Dhar

Himanshu Labhshanker Joshi

Hasina Hajibhai Deraiya

Bharat Lakshman Newalkar

Sumesh Chandra Upadhyay

Mathew John

Nettem Venkateswarlu Choudary

Noor-ul Hasan Khan

Ram Sajeevan Shukla

Upendra Padmakant Saraiya

Sayed Hasan Razi Abdi

Vishal Jitendrabhai Mayani

Noor-Ui H Khan

Phani Brahma Rallapalli

Dipak Balwantrai Shukla

Maharaj Kishan Dhar

Pushipito Kumar Ghosh

Pradyut Ghosh

Sharad D Bhatt

Vivek K Srivastava

C Kesava Rao

Dinesh Patil

Karikkethu Prabhakaran Prasanth

Checkalazhikathu Raj Manoj

Rajendra Singh Thakur

Aasif Asharafbhai Dabbawala

Tamal Roy

Niraj Rameshchandra Vyas

Arpan K Shah

Sayed H R Abdi

Phani Brahma Somayajulu Rallapalli

Ram Sambhar Shukla

Sharad Durgashamkerbhai Bhatt

The present invention discloses activated carbon-metal organic framework composite materials (AC@MOF) with enhanced gas adsorption capacity. The present invention also discloses a process for the preparation of carbon-metal organic framework composite materials (AC@MOF). The present invention involves the use of 'void space filling method' in metal organic frameworks (MOFs), which have been accomplished by in-situ addition of selected type and appropriate amount of activated carbon during the synthesis of MOF such as Cu-BTC, in the storage of gases such as methane. The gas adsorption capacity of these AC@MOF composite materials is significantly increased through this method.

Activated carbon-metal organic framework composite materials with enhanced gas adsorption capacity and process for the preparation thereof

A method of producing soda ash and ammonium sulphate by recycling by-products of Merseberg and Solvay processes includes treating brine with soda ash distiller waste for desulphatation of the brine to obtain gypsum, recovering pure salt from the desulphated brine and utilizing it in manufacture of soda ash in a Solvay process, washing the gypsum and reacting it with liquor ammonia and carbon dioxide to obtain CaCOand ammonium sulphate, separating the CaCOfrom the ammonium sulphate solution and recovering solid ammonium sulphate, washing the CaCOfollowed by calcination to generate COand lime, recycling the COin the Solvay process to obtain soda ash, recycling the lime with ammonium chloride generated in the Solvay process to recover ammonia and obtain distiller waste containing CaClas a by-product, recycling the by-product distiller waste for the desulphatation of the brine, and recycling the ammonia recovered.

Method of recycling of by-products for the production of soda ash and ammonium sulphate

A process for preparation of 2-phenyl ethanol by catalytic hydrogenation of styrene oxide using a catalyst consisting of Pd (II) on basic inorganic support is investigated. The present invention comprises development of new Pd based catalysts. The present method yields 2-phenyl ethanol in 98% selectivity at total conversion of styrene oxide. The present process represents an environment friendly alternative to conventionally used methods in industry and eliminates the reduction step for catalyst preparation. In the present invention the active catalyst is generated in situ during the hydrogenation of styrene oxide. In addition, Pd (II) supported catalysts do not catch fire (non pyrophoric), can be stored under ambient conditions and produce very less or no dust which makes said catalysts suitable for industrial application.

Hydrogenation of styrene oxide forming 2-phenyl ethanol

Kainite mixed salt is treated with water to obtain solid schoenite and a schoenite end liquor. The latter is desulphated using recycled CaCland thereafter evaporated to obtain camallite crystals, from which KCl is recovered, and a liquor rich in MgCl. Gypsum produced during desulphatation is reacted with aqueous ammonia and COto produce ammonium sulphate and calcium carbonate. The calcium carbonate is calcined to obtained CaO and CO. The CaO is slaked and reacted with the MgCl-rich liquor generated above to produce slurry of Mg(OH)in aqueous CaCl. To this surface modifying agent is added while hot and, after cooling, the slurry yields surface modified Mg(OH). The filtrate rich in CaClis recycled for desulphatation process above. The solid surface modified Mg(OH)may he calcined to produced MgO. The schoenite and KCl are reacted to produce solid sulphate of potash.

Process for simultaneous production of potassium sulphate, ammonium sulfate, magnesium hydroxide and/or magnesium oxide from kainite mixed salt and ammonia

The present invention relates to the preparation of highly efficient chiral heterogeneous catalyst for asymmetric nitroaldol reaction, wherein Henry reactions of various aldehydes such as aromatic, aliphatic, &#x3b1;,&#x3b2;-unsaturated aldehydes, alicyclic aldehydes and nitroalkenes were carried out to produce optically active &#x3b2;-nitroalcohols in high yield, with moderate to excellent enantioselectivity (ee up to &#x3e;99%) in presence of a base and an optically active chiral heterogeneous catalyst.

Chiral heterogeneous catalyst for assymmetric nitroaldol reaction

The present invention provides a process for the preparation of finely divided precipitated silica. Finely divided precipitated silica is prepared by neutralization of alkali silicate solution, under continuous stirring, at 60&#xb0; to 90&#xb0; C. in presence of alkali metal salt as coagulating agent, in various neutralization steps during which neutralization is interrupted for specific time. Further acidic silica sol, is added until 60 to 80% of total alkali is neutralized. The reaction mixture is then aged at least for 3 minute under continuous agitation, followed by circulation through centrifugal pump at an appropriate rate.

Process for the preparation of finely divided precipitated silica

The present invention provides a process for the preparation of detergent builder Zeolite-A from Kimberlite tailing generated as solid waste during diamond mining is disclosed. The process comprises, reacting an acid treated Kimberlite tailing with alkali solution to obtain sodium silicate and reacting it with alkaline aluminum source at room temperature and crystallizing at higher temperature to obtain Zeolite-A. The product is useful as builder in detergent formulation.

Process for preparing detergent builder Zeolite-A from Kimberlite tailings

The present invention relates to an improved process for the recovery of palladium from spent catalyst. The present invention particularly relates to a suitable method of catalyst recovery of precious metals from spent catalysts or inorganic waste and more specifically the process concerns with the recovery of palladium that is anchored on carbon and is used as catalyst for the hydrogenation of nitro aromatics or as a catalyst for many other organic transformations.

Process for recovery of palladium from spent catalyst

In the present invention a process for the preparation of sodium silicate from Kimberlite tailing generated as solid waste during diamond mining is disclosed. The process comprises, reacting Kimberlite tailing with mineral acid to remove acid soluble impurities followed by digesting acid treated Kimberlite tailing with alkali solution in a open or closed system to obtain sodium silicate useful for commercial applications.

Process for the preparation of sodium silicate from Kimberlite tailing

The present invention provides a novel eco-friendly multi-functional catalyst system useful to obtain Caldol-derivative from C-alkenes where n ranges from 2 to 10 in a single step under hydroformylation reaction conditions and adol formation conditions.

Process for preparing aldol derivatives from alkenes using catalyst

The present invention provides a provides a process for the recovery of precious metals from spent catalysts or adsorbent or inorganic waste, more specifically the process relates to recovery of Pd from silica, which is used as an adsorbent in column chromatography or as a catalyst support in many catalysts.

Process for the recovery of palladium from spent silica

A new process is described for the preparation of free flowing hydrated amorphous silica from kimberlite tailing&#x2014;a waste in diamond mining. The process comprises treating of kimberlite with acid, further reacting it with alkali solution to obtain soluble metal silicate solution, which is subsequently neutralized with mineral acid to polymerize silica as insoluble precipitates. The products is useful in rubber, paints as abrasive etc.

Process for preparing amorphous silica from kimberlite tailing

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Bhavnagar, India

Hari Chand Bajaj