摘要:
The subject of the invention is a method for obtaining a mixture of ethyl 9-decenoate and 1-decene by ethenolysis reaction from a raw material of technical purity containing fatty acid alkyl esters and ethyl oleate content of at least 70%, comprising the following steps: a) preparation of the substrate - alkyl ester of oleic acid, b) preparation of the catalyst solution, c) contacting the catalyst solution with the substrate in the reactor, d) filling the reactor with ethylene gas, e) mixing the reaction mixture, f) pouring down the reaction mixture from the reactor, g) fractional distillation of the reaction mixture, h) hydrolysis of 9-decenoic acid alkyl esters, characterized in that in step a) the substrate is contacted with magnesol, and in step b) the catalyst solution is prepared by dissolving in toluene a ruthenium complex containing at least one carbene ligand with a five-membered heterocyclic ring containing two tertiary nitrogen atoms in which one of the nitrogen atoms is substituted with a thiophenomethylene substituent and the other nitrogen atom is substituted with an aromatic substituent containing at least one branched alkyl substituent containing at least three carbon atoms in the alkyl chain and the reaction in step e) is carried out for 2 to 8 hours and at a temperature of 50 °C to 80 °C under ethylene pressure 10 bar to 20 bar and in step f) the reaction mixture is contacted with the scavenger solution.
摘要:
The invention relates to a method of obtaining a preparation containing killer toxins, involving yeasts of the Debaryomyces hansenii species, the preparation being useful in an integrated and ecological protection of fruit plants, crops and domesticated plants against development of phytopathogenic fungi.
摘要:
Method to control regulation parameters in internal combustion engine with. spark-ignition, comprising concurrent ignition advance angle and fuel dose control, characterized in that the temperature of exhaust gas is measured in the exhaust duct of each cylinder individually, and on the base of temperature measurement, the ignition advance angle value and fuel dose are adjusted individually for each cylinder in order to maintain required engine working parameters with changes in energetic properties of the supplied fuel.
摘要:
A nutraceutical in the form of ethyl esters of omega 3, 6 and 9 acids retaining from 95% to 100% of the cis- isomers contained in the raw materials (a mixture of plant oils) as well as a a method of producing it using cavitation technology, two evaporators connected cascade-wise, a 5-stage settlement system, purifying and clarifying centrifuges, and the possible reclamation of production waste using a microbiological biological system ( Yarrowia lipolytica yeast).