The present invention relates to an industrial process for the preparation of (5S,10S)-10-benzyl-16-methyl-11,14,18-trioxo-15,17,19-trioxa-2,7,8-trithia-12-azahenicosan-5-aminium (E)-3-carboxyacrylate salt of following formula (I): wherein X is fumarate. This process comprises the following successive key steps: a kinetic resolution, formation of disulfide compound, peptide coupling, and anion exchange reaction to obtain the desired product of formula (I).

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Disclosed are a heat recovery device and a heat recovery method. According to the heat recovery device, it is possible to recovery heat which is discontinuously generated in a batch reactor. In addition, a heat-exchanged heat exchange medium is supplied to a heat storage facility so that various kinds and a great quantity of steams can be produced, if necessary, thereby utilizing these produced steams in various industrial fields.

The present invention relates to a method for manufacturing a chemical adsorbent for removing harmful gases, comprising a step of preparing an aqueous chemical solution, which is a mixture of 5 to 20 parts by weight of a chemical for a neutralization or oxidation-reduction reaction of harmful gases, and 120 to 150 parts by weight of purified water, relative to 100 parts by weight of a carrier as an adsorbent; an impregnation step of immersing the carrier in the aqueous chemical solution of a reaction tank and stirring at 50 to 100 rpm for 1 to 5 hr a resulting mixture obtained by immersing the carrier in the chemical aqueous solution while maintaining a temperature of the reaction tank at 60 to 95? C.; and a drying step of evaporating and removing moisture until a moisture content of the chemical adsorbent is 5 to 25% by stirring the resulting mixture at 100 to 300 rpm for 4 to 10 hr while maintaining the temperature of the reaction tank at 105 to 130? C., wherein the chemical adsorbent is obtained after stirring of the resulting mixture at 50 to 100 rpm for 1 to 5 hr is completed.

The present disclosure provides a process for making trifluoroacetyl iodide (TFAI) in a liquid phase reaction. Specifically, the present disclosure provides a liquid phase reaction of trifluoroacetyl chloride (TFAC) and hydrogen iodide (HI), with or without a catalyst, to form trifluoroacetyl iodide (TFAI). The reaction may be performed at ambient or elevated temperatures.

The invention relates to a method for the preparation of bis(fluorosulfonyl)-imide and its derivatives at elevated temperature.

The present application relates to a method for producing powdered lauroyl peroxide which is characterized in that a reaction mixture is used which comprises water, lauric acid chloride, hydrogen peroxide, an inorganic base and an alkane.

The invention relates to a method for regenerating the extractive potential of an organic hydroxyoxime-based extraction solution used in the recovery of metals by liquid-liquid extraction. The method is two-stage, in which a solid hydroxylamine is used in the reaction stage, and the removal of the undesirable compounds generated in the reaction occurs in the second stage by adsorption purification. The method of the invention is suitable for treatment of degraded oxime metal extractants in various process organic solutions both in aldehyde and ketoxime extractant solutions. The method can also be used to treat a mixture of degraded oxime extractants.

The present invention relates to a system for energy recovery and a polymerization plant having such a system comprising a. an exothermic device operating continuously (exothermic device interpreted as any apparatus able to produce heat and transfer it onto another body), b. a cooling device in fluid communication with said exothermic device, c. an endothermic device operating discontinuously (endothermic device interpreted as any apparatus able to receive heat from another body, i.e. to be heated); said system being characterized in that it comprises a device for the accumulation of the energy produced by the exothermic device in fluid communication with the discontinuous endothermic device, the exothermic device operating continuously and the cooling device using a service fluid.

The present application relates to a method for producing powdered lauroyl peroxide which is characterised in that a reaction mixture is used which comprises water, lauric acid chloride, hydrogen peroxide, an inorganic base and an alkane.

The present invention refers to the use of hydrofoil impellers for the preparation of polymer polyols and to a method for preparing a polymer polyol, which comprises reacting a base polyol, at least one ethylenically unsaturated monomer and a macromer or a preformed stabilizer in the presence of a free-radical initiator and optionally a chain transfer agent in a reactor, wherein said reactor is stirred by means of a stirring system comprising a shaft rotatable about its longitudinal axis, and a plurality of radially extending hydrofoil impellers mounted on the shaft and respectively axially spaced apart and wherein the reactor does not contain baffles.