Council of Scientific and Industrial Research

Mohammed Akram Khan

Sarika Verma

Sudhir Sitaram Amritphale

Avanish Kumar Srivastava

Satyabrata Das

Sanjai Kumar Singh Rathore

Avneesh Anshul

Sunil Kumar Sanghi

Barada Kanta Mishra

Ramesh Kumar Chouhan

Manish Mudgal

Syed Azhar Rasheed Hashmi

Deepti Mishra

Navin Chandra

Medha Mili

Prabha Padmakaran

Swati Lahiri

The novel process enables designing of raw materials and processing parameters, enabling synergistic and simultaneous chemical reactions among the various reactants of the design mix of chemical precursor of brine sludge which includes barium sulphate, magnesium hydroxide, calcium carbonate, sodium chloride, silica, aluminum containing compounds necessary for developing highly efficient shielding phases leading to homogenous matrix of shielding materials.

Advanced lead-free radiation protection materials utilizing modified brine sludge composition and the process thereof

The present invention relates to advanced multi-functional asbestos-free thermal insulating materials utilizing appropriate matrixes comprising nano thermal insulating precursor powder predominantly comprising calcium silicate and calcium magnesium silicate prepared from marble waste powder, rice husk and calcium hexametaphosphate; crushed silica fiberglass and a supporting matrix.

Advanced multi-functional asbestos free thermal insulating material and the process for preparation thereof

The present invention relates to advanced cement free composition for concrete and panels useful in construction industry and the method of preparation thereof. Particularly the present invention relates to advanced cement free composition constituting Sea sand, Fly Ash, Seawater, NaOH and NaSiO(sodium meta silicate). More particularly the present invention relates to advanced cement free composition for concrete and panels with comprehensive strength of 15 to 30 MPa and flexural strength of 1.5-3.0 MPa.

Advanced cement free composition for concrete and panels and method of preparation thereof

Conventional shielding materials are based on single material either toxic lead or barium based compounds and any matrix made therefrom contains only single phased barium based compounds, thereby posing limited radiation shielding capacity. Since brine sludge, an industrial toxic waste product, generated in chloralkali industry contains multiple compounds; there is a need to provide a process which enables the preparation of multi-phase based radiation shielding materials. In view of the above, the present invention provides advanced non-toxic radiation shielding materials utilizing tailored brine sludge and a process that enables conversion of toxic elements like chromium, zinc, copper and vanadium present in brine sludge into non-toxic shielding phases, thereby enabling to convert a toxic waste material into highly value added advanced radiation shielding materials possessing homogeneous radiation shielding matrix.

Advanced non-toxic radiation shielding materials from tailored brine sludge and a process for the preparation thereof

The present invention provides a composition for advanced hybrid geopolymeric functional materials possessing very broad application spectrum ranging from cementitious materials to advanced functional materials having 'Inorganic-Organic Hybrid' matrix in contrast to the limited application of conventional geopolymeric materials having 'Inorganic matrix' only. The invention further relates to a process for the preparation of these materials. The process obviates the need of external addition of sodium silicate which is one of the costliest and main raw materials in conventional geopolymerisation processes. Interestingly, in the present invention the sodium silicate has been synthesized in situ by designing of conditions for synergistic and simultaneous mechano-chemical reactions among the selected raw materials viz. inorganic and organic wastes under alkaline environment. This results in the formation of &#x201c;Hybrid inorganic-organic frame work&#x201d; of sodium silicate, which facilitates uniform dispersion of reacting species, thus resulting in the formation of homogeneous geopolymeric matrix with improved characteristics.

Composition for advanced hybrid geopolymeric functional materials and a process for the preparation thereof

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Madhya Pradesh, India

Mohammed Akram Khan