Abstract:
The present disclosure provides a process for the reduction of residual acidity of halogenated polymer. The process involves treating the halogenated polymer to a physical process such as rotary vacuum drying and then neutralizing the treated halogenated polymer with alkaline metal salt solutions. The process requires less quantity of an economic neutralizing agent/base during chemical treatment, thus improving process economy without prejudicing quality of the final halogenated polymer.
Abstract:
The present disclosure relates to a surface modified zeolite having formed pores therein, with apertures on the surface of the zeolite of diameter less than 4.4° A without reduction of the pore volume. The present disclosure also relates to a process for the preparation of the surface modified zeolite and a method of selectively removing substances with molecular size below 4.4 A° from fluids by using the surface modified adsorbents.
Abstract:
The present disclosure relates to a process for the preparation of an organo-polysulfide from a chlorinated hydrocarbon and an elemental sulfur waste. The organo-polysulfide of the present disclosure has a coke inhibition ability.
Abstract:
The present disclosure relates to a process to reduce total acid number (TAN) of a heat transfer fluid. The process comprises contacting the heat transfer fluid with an adsorbent composition at a temperature in the range of 50° C. to 350° C. and a pressure in the range of 1 bar to 10 bar to obtain a treated heat transfer fluid having total acid number (TAN) in the range of 0.003 to 0.03 and pH in the range of 6 to 7.5, wherein the adsorbent composition is provided in a fixed bed and the heat transfer fluid is passed through the fixed bed comprising the adsorbent composition at a liquid hourly space velocity (LHSV) in the range of 0.5 per hour to 10 per hour.
Abstract:
The present disclosure provides a process for the chlorination of polyvinyl chloride. PVC obtained during the suspension polymerization reaction is directly used for chlorination without filtration, drying and re-slurrying. The present process is carried out in the absence of additional chemicals/reagents; also reheating during the chlorination reaction is not required. CPVC manufactured using the process of the present disclosure has whiteness index greater than 85, yellowness index lower than 4 and thermal stability in the range of 300 to 550 seconds at 210° C.
Abstract:
The present disclosure relates to a process for the production of crude bio-oil which involves heating a mixture of biomass slurry and a mixed catalyst system in the presence of a hydrogen source at a temperature ranging from 200 to 350° C. and at a pressure ranging from 70 to 250 bars to obtain a mass containing crude bio-oil. The crude bio-oil can then be separated from said mass containing crude bio-oil. The mixed catalyst system remains in solid form and can be easily separated and reused in the next cycle of hydrothermal conversion of biomass to crude bio-oil.
Abstract:
In the present disclosure an easily processable ultrahigh molecular weight polyethylene and a process for preparation thereof is disclosed wherein the easy processable ultrahigh molecular weight polyethylene is prepared by melt mixing a first ultrahigh molecular weight polyethylene having poor process-ability and a second ultrahigh molecular weight polyethylene along with a minimal amount of solvent. The easily processable ultrahigh molecular weight polyethylene is melt processable below its melting point and requires lesser compression molding time as compared to the first ultrahigh molecular weight polyethylene.