Provided is a process for preparing a compound of Formula A (Formula A) or a salt or solvate thereof, the process comprising the step of: a) Reacting the compound 1 (1) with a trialkyl orthoformate to provide a compound of Formula A or a salt or solvate thereof, wherein R is the alkyl moiety of the trialkyl orthoformate. Further provided is the compound 2 or a salt or solvate thereof. (2) The use of these compounds in the synthesis of 3-[5-Amino-4-(3-Cyanobenzoyl)-Pyrazol-1-yl]-N-Cyclopropyl-4-Methylbenzamide is also provided.

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The invention relates to an arrangement of several layers of catalysts arranged in series in a reactor for the hydroisomerisation of hydrocarbons, to a method for the hydroisomerisation of hydrocarbons and to the use of the arrangement for the hydroimerisation of hydrocarbons.

We provide a process to manufacture a base stock, comprising hydrocracking, separating, and dewaxing, wherein the base stock has a ratio of Noack volatility to CCS VIS at −25° C. multiplied by 100 from 0.15 to 0.40. We also provide a base stock made by a process, and a base oil manufacturing plant that produces the base stock.

This invention provides a method for stably producing 2,3,3,3-tetrafluoropropene for a long period of time wherein unreacted materials are reused after distillation without liquid-liquid separation to suppress catalyst deactivation. The method for producing 2,3,3,3-tetrafluoropropene comprises the step of reacting 1233xf or like chloropropene with hydrogen fluoride in the presence of a catalyst, the step of subjecting the reaction mixture obtained in the above step to distillation to separate the mixture into a first stream comprising 2,3,3,3-tetrafluoropropene as a main component and a second stream comprising unreacted hydrogen fluoride and organic matter containing unreacted chloropropene as main components, and the step of recycling the second stream to the above reaction, the distillation being performed under conditions in which the unreacted hydrogen fluoride and the organic matter containing the unreacted chloropropene do not undergo liquid-liquid separation at a portion of a distillation column from which the second stream is withdrawn.

The invention relates to an apparatus for the material treatment of raw materials. The apparatus has a heating system, a distillation unit and a reaction unit to be loaded with the raw materials for treatment. The heating system can be opened and closed to be fitted with the reaction unit. The heating system comprises a top element and a jacket element firmly connected to the top element, and supporting elements. The length of the support elements can be varied in the vertical direction, between two end positions, the heating system can be opened and closed in the vertical direction of movement. The invention further relates to a method for operating an apparatus for the material treatment of raw materials.

The present disclosure relates to a method and an apparatus for decomposing a phenolic by-product generated in a bisphenol A preparation process, the method including: a step (S10) of feeding the phenolic by-product to a multistage reactive distillation column; a step (S20) of separating the phenolic by-product into an upper discharge stream containing an active component, a side discharge stream containing acetophenone, and a bottom discharge stream containing tar by the multistage reactive distillation column; and a step (S30) of mixing the side discharge stream discharged from the multistage reactive distillation column and the bottom discharge stream discharged from the multistage reactive distillation column to form a mixed discharge stream.

Disclosed are an apparatus and a method for removing halogens generated during the preparation of polybutene, which are capable of improving the utilization of polybutene and light polymers by removing halogen components contained in the polybutene and the light polymers. The method for removing halogens generated during the preparation of polybutene comprises the steps of: preparing a reaction product by supplying a catalyst and a reaction raw material to a reactor and polymerizing; removing a catalyst component from the reaction product and neutralizing; separating the reaction product into an organic compound and impurities comprising the catalyst component; heating the organic compound to distill an unreacted material; and removing a halogen component in a remaining polymerization mixture after the distillation using a halogen removing catalyst, or removing a halogen component in polybutene and light polymers obtained from the polymerization mixture using the halogen removing catalyst.

The present invention relates to an improved process for preparing hydrazine hydrate from the azine of methyl ethyl ketone obtained from methyl ethyl ketone by oxidizing ammonia with hydrogen peroxide in the presence of an activator, characterized in that it comprises a step of recycling the methyl ethyl ketone oxime purge.

The present invention relates to an intensification of the synthetic process for the preparation of dialkyl ether from alcohol by using a conical fixed bed reactor integrated with distillation coupled conical polishing reactor.

A method of batch distilling including providing a first substrate that upon distillation releases vapour having deleterious sulfur compounds, providing an inert still, adding the first substrate to the still, installing at least one first reactive article in the still and subsequently performing a first distillation run on the first substrate, such that the installed at least one first reactive article has a first exposed area that is exposed to the distillate, and collecting a first desired fraction from the first run. The distillation during the collection of the first desired fraction is performed at a rate of less than 5 L/(hr*m2) of collected first fraction per first exposed area. Compatible still and kit are also provided.