Sabic Global Technologies B.v.

Sabic Innovative Plastics IP B.v.

Saudi Basic Industries Corporation

Nedumbamana Sankaran

Pradeep Jeevaji Nadkarni

Edward Joseph Nesakumar

Abdulaziz Hamad Al-Humydi

Girish Mariswamy Chandra

Jeremy David Hurst

Sharankumar G Shetty

Haif Al-Shammari

Suresh Velate

Kankan Bhaumik

Prashant Shinge

Syed Azhar Hashmi

Vinodkumar Vasudevan

Labeeb A Chaudhary

Prashant Sukumar Shinge

Pradeep Jeeevaji Nadkarni

A process for producing terephthalic acid, comprising: passing a feed stream through a catalytic reactor wherein the feed stream comprises p-xylene; contacting the feed stream with a catalyst within the catalytic reactor to produce an oxidation reaction wherein the catalyst comprises, less than or equal to 10% of a metal component wherein the metal component comprises cobalt ions, manganese ions, or a combination comprising at least one of the foregoing, less than or equal to 15% bromide ions, and less than or equal to 2% silver ions; and producing a product stream comprising terephthalic acid, wherein the product stream exits the catalytic reactor.

Process for producing terephthalic acid

The invention relates to a metallocene complex according to formula (1) wherein M is a metal selected from lanthanides or transition metals from group 3, 4, 5 or 6 of the Periodic System of the Elements, Q is an anionic ligand to M, k is the number of Q groups and equals the valence of M minus 2, Z, Z, Zand Zare identical or different and can be chosen from the group consisting of hydrogen and a hydrocarbon radical with 1-20 carbon atoms, and adjacent substituents Z can form a ring system together with the carbon atoms of the Cp ring to which they are bound. 

Bridged metallocene complex for olefin polymerization

A method of reducing the formation of an impurity in a terephthalic acid (TPA) production process includes: combining in a reactor, a catalyst, a mixture comprising the impurity and the TPA, and a compound comprising an active carbon atom; reacting the impurity with the compound in the presence of the catalyst by a condensation-dehydration reaction process comprising a nucleophilic addition of the active carbon atom of the compound to a carbonyl group of the impurity to form an intermediate followed by a dehydration reaction of the intermediate to form a product mixture comprising a water, the TPA, and an alkene; and recovering the product mixture from the reactor.

Method of producing terephthalic acid

A metallocene complex according to formula 1 wherein

A luminescent solar collector contains a first fluorescent dye and a dye compound of Formula (I) or (II): where R, R', m, and k are as described herein. The luminescent solar collector has improved output.

Luminescent solar collector

Disclosed are fluorescent dye compounds of Formula (I): wherein R, R, and G are as described herein. The fluorescent dyes are suitable for use in luminescent solar collectors or as a colorant. Methods of making the fluorescent dyes and luminescent solar collectors comprising them are also described.

Disclosed are fluorescent dye compounds of Formula (I) or (II): where R, R', m and k are as described herein. The dye compounds are suitable for use in luminescent solar collectors. Methods of making the dye compounds and luminescent solar collectors comprising them are also described.

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Bengaluru, India

Nedumbamana Sankaran