Council of Scientific and Industrial Research

Other

Vasant Ramchandra Choudhary

Amarjeet M Rajput

Subhash Dwarkanath Sansare

Suman Kumar Jana

Balu Shivaji Uphade

Ajit Singh Mamman

Abaji Govind Gaikwad

Vilas Hari Rane

Prabhas Jana

Shafeek Abdul Mulla

Tushar Vasant Choudhary

Sopan T Chaudhari

Nilesh Sudhir Patil

Subhabrata Banerjee

Kartick Chandra Mondal

B-Phani Kiran

Bathula Prabhakar

Anil Kisan Kinage

Kshudiram Mantri

Shafeek Abdul Rashid Mulla

Meenakshi Y Pandit

Rani Jha

Chancal Samanta

Vijay S Narkhede

Chanchal Samanta

Jayant R Indurkar

This invention discloses a high temperature stable, supported, non-noble metal catalyst, represented by a general formula: NiCoCeMgYO(y)/S, wherein S is a low surface area, macroporous, highly sintered, solid support comprising zirconium and hafnium oxides with less than 3 wt % silica and/or alumina having a surface area less than 1.0 m/g and pore diameter greater than 0.1 micron, in the form of pellet, ring, monolith or granules; a is from 0.01 to 10; b is from 0.001 to 10; c is from 0.001 to 10; d is from 0.005 to 5; x is number of oxygen atoms required to fulfill the valance requirement of the metallic elements; and y is weight percent loading of the active catalyst mass, on the support, S, in the range from 0.7% to 70%. The invention also discloses a process for the partial oxidation of hydrocarbon(s) to syngas using the thermally stable catalyst.

High temperature stable non-noble metal catalyst, process for production of syngas using said catalyst

A method for improving drastically both the selectivity and yield of hydrogen peroxide in the direct oxidation of hydrogen to hydrogen peroxide over a solid catalyst comprising palladium, which comprises:

Method for production of hydrogen peroxide with improved yield and selectivity by direct oxidation of hydrogen over palladium containing catalyst

The present invention relates to a catalytic process for the continuous production of carbon monoxide-free hydrogen from methane or methane-rich hydrocarbons using a solid catalyst comprising at least one group VIII metal in two parallel catalytic reactors.

Process for the continuous production of carbon monoxide-free hydrogen from methane or methane-rich hydrocarbons

The present invention discloses a process for the production of hydrogen peroxide from hydrazine hydrate or hydrazine salt, represented by a general formula:NH.nX,wherein, X is HO, HSO, HNO, HCl, HBr, HI or CHCOOH; n is 0.5, 1 or 2; N is nitrogen; H is hydrogen; S is sulfur; Cl is chlorine; Br is bromine; and I is iodine, by its liquid phase oxidation with oxygen, using a solid catalyst comprising palladium but with or without halogen promoter, in an aqueous reaction medium with or without comprising a mineral acid and/or halide anions, which comprises:

Process for preparing hydrogen peroxide

The present invention relates to a biphasic process for the epoxidation of an organic compound by organic compound by organic hydroperoxide. More particularly, the present invention relates to a biphasic process for the epoxidation of an organic compound by organic hydroperoxide to the corresponding epoxide, using chromate or dichromate anions as the catalyst in aqueous medium.

Biphasic process for epoxidation of olefinic compound using chromate or dichromate catalyst

The present invention relates to a method for gas-solid contacting in a bubbling fluidized bed reactor by:

Method for gas&#x2014;solid contacting in a bubbling fluidized bed reactor

A process for the non-oxidative conversion of methane simultaneously with the conversion of an organic oxygenate, represented by a general formula: CHOCH, wherein C, H and O are carbon, hydrogen and oxygen elements, respectively; n is an integer having a value between 1 and 4; and m is an integer having a value between zero and 4, to Chydrocarbons, particularly to gasoline range C&#x2013;Chydrocarbons and hydrogen, using a bifunctional pentasil zeolite catalyst, having strong acid and dehydrogenation functions, at a temperature below 700&#xb0; C. is disclosed. In this process the moles of methane converted per mole of oxygenate converted is above 1.0, depending upon the process conditions.

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This invention particularly relates to a process for the acylation of aromatic compounds by an acylating agent for preparing corresponding acylated aromatic compounds, using a solid catalyst.

Acylation of aromatic compounds

The present invention relates to a process for the liquid phase epoxidation of a normally liquid olefinic compound to corresponding organic epoxide compound using aqueous or anhydrous organic hydroperoxide as an oxidizing agent in the presence of a supported nano-gold catalysts at the effective organic hydroperoxide/olefinic compound mole ratio, catalyst/olefinic compound weight ratio and temperature to yield the epoxide.

Process for epoxidation of a liquid olefinic organic compound using a supported nano-gold catalyst

The present invention relates to a process for the preparation of aromatic carbonyl compound with carbonyl group attached to its aromatic ring, particularly relates to a process for the preparation of aromatic carbonyl compound with carbonyl group attached to its aromatic ring, by oxidizing with molecular oxygen the methylene or alcoholic group attached to aromatic ring of an aromatic compound, using a polyoxotnetallate(s) anion exchanged hydrotalcite catalyst.

Process for the preparation of carbonyl compounds with a carbonyl group attached to the aromatic ring

Process for the preparation of substituted aromatic compound employing friedel-crafts reaction using a reusable basic anionic clay catalyst

This invention provides a process for the activation of a metallic palladium containing catalyst which is useful for the direct oxidation of hydrogen by oxygen to hydrogen peroxide, by treating the catalyst with an oxidising agent in order to at least partially oxidise the metallic palladium contained in the catalyst to palladium (TT) oxide. The selectivity and yield of the catalyst for hydrogen peroxide are observed to increase substantially and the hydrogen peroxide decomposition activity of the catalyst is drastically reduced.

Process for the activation of a metallic palladium based catalyst useful for the direct oxidation of hydrogen to hydrogen peroxide

A process for the continuous production of hydrogen from methane and/or natural gas and/or methane-rich hydrocarbons and steam at low temperature, using a solid catalyst comprising group VIII metal oxide(s) in two parallel reactors, comprising reducing the solid catalyst in both the reactors by contacting the catalyst with a gaseous feed comprising a reducing agent, contacting a first gaseous feed comprising methane and/or natural gas and/or methane rich hydrocarbons, simultaneously contacting a second gaseous feed comprising steam called Feed-B with the solid catalyst reduced in step-i in a second reactor. while regularly switching over the two feeds, Feed-A arid Feed-B, between the two parallel reactors to obtain a mixed product stream comprising hydrogen from the two reactors.

Low temperature process for the production of hydrogen

The present invention provides a liquid phase process for the acylation of aromatic compound by an acylating agent of the formula (R R R )&mdash;Y&mdash;Z to obtain the corresponding acylated compound using a solid catalyst comprising a metal oxide of the formula AO with or without a catalyst support, wherein A is a metallic element selected from Ga, In, Ti, Fe and a mixture of two or more thereof, and x is the number of oxygen atoms required to fulfil the valance requirement of A, wherein the catalyst is pretreated with a dry gas comprising a hydrogen halide in the presence or absence of the aromatic compound to be acylated, contacting the hydrogen halide pretreated catalyst with a liquid reaction mixture comprising the aromatic compound and the acylating agent, cooling the reaction mixture, removing the catalyst from the reaction mixture and then separating the reaction products from the reaction mixture.

Process for the liquid phase acylation of aromatic compounds

A hydrophobic composite Pd-membrane catalyst, useful for the non-hazardous direct oxidation of hydrogen by oxygen to hydrogen peroxide, without a gas phase mixing of hydrogen and oxygen or air, having the general formula: HPM (c)/SOMF (b)/M Pd (a)/IPM wherein, IPM is an inorganic porous membrane, M Pd is a metal alloy, permeable only to hydrogen gas, Pd is a palladium metal; M is a metal other than palladium, or a mixture of two or more thereof; x is a mole fraction of the metal M in the metal alloy (M Pd ), a, in the round bracket, is a weight of the metal alloy per unit area of IPM; SOMF is a surface oxidized thin metal film comprising palladium b, in the round bracket, is a thickness of SOMF; HPM is a hydrophobic polymer membrane and c, in the round bracket , is a weight of the HPM per unit area of SOMF and a process for producing the said catalyst.

Hydrophobic composite Pd-membrane catalyst useful for non-hazardous direct oxidation of hydrogen by oxygen to hydrogen peroxide and method of its preparation

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Pune, India

Vasant Ramchandra Choudhary