30results about How to "Enough purity" patented technology

The invention relates to a method for the producton of silicon organic compounds modified by a phosphonic acid ester by reacting at least one silane having formula [(R<3>O) fR<1>3-fSiCR<2>2P (O) (OR<4>) 2] (III) with at least one silicon compound having general formula (R2SiO2 / 2) p (R3SiO1 / 2) q [O1 / 2H] m (IV), wherein R<3> represents hydrogen or a C1-C20-hydrocarbon radical optionally substituted by -CN or a halogen atom, and m represents a whole number of 1 or 2, and R, R<1>, R<2>, R<3>, R<4>, m, p, q, f and s have the meaning cited in the description.

The invention discloses a water-treatment composite microbe continuous culture device and a culture method thereof. The device comprises a tank (1), the tank (1) is separated into four independent culture zones comprising an aerobic zone (3), an anaerobic zone (4), a first transition zone (5) and a second transition zone (6) by separation plates (2), the first transition zone (5) and the second transition zone (6) are positioned between the aerobic zone (3) and the anaerobic zone (4), each of the culture zones is provided with a culture medium inlet (7) and an overflow mouth (8), a culture medium is continuously charged through the culture medium inlet (7), and a cultured bacterial liquid flows to a sewage treatment zone from the overflow mouth (8). The device and the method have the advantages of realization of the simultaneous and continuous culture of a plurality of strains, automatic addition of the culture medium, automatic charging of the bacterial liquid, improvement of the culture efficiency of the bacterial liquid, substantial acceleration of the composite pollution treatment speed, and avoiding of the sewage-treatment intermittent interruption caused by intermittent culture.

The invention relates to a discontinuous crystallization unit for the preparation of spherical crystals, comprising a crystallizer (1) consisting of a metal cylindrical container with a hard material inner surface, with an elliptical shaped or circular cross-section and tapered or arched bottom (12), along the length of said metal cylindrical vessel is mounted a replicator (4) for cooling the solution and / or suspension of solution and crystals; and hard A high-speed stirrer (8) for the material with a drive (9) that achieves speed control and is thus connected to the interior of the vessel with at least 2 hard material baffles (5) The surfaces together control the impact rate of the mechanical action of the stirrer on the crystal roundness in the container, and at the same time at least 1 orifice (10) is installed on the top of the container, and the branch of at least 1 independent circulation loop (11) is connected to the said at least 1 orifice (10) for feeding heated solution and / or heated solution and suspension of crystals via at least 1 circulation pump (2) and via at least 1 heat exchanger (3) , which together with the replicator (4) ensures a controlled periodic variation of the temperature of the crystal suspension around the cooling curve, while connecting the interconnection (13) pipeline to the crystallizer (1) vessel bottom (12), which connects At least one branch to the circulation loop (11).

A benzopyran compound or its salts, their preparing process and their application in preparing medicine for treating B-type diabetes are disclosed.

The invention discloses a new application of thio-taxane derivatives which have the structure shown in formula (1), wherein R is hydrogen, C1-18 are alkyl groups, C1-18 are substituted alkyl groups, C2-10 are alkenyl groups, C2-10 are alkynyl, C3-6 are naphthenic base, C4-6 are cyclenes base, aryl, substituted aryl, heterocyclic groups or substituted heterocyclic groups, and the substituent is one or several types selected from C1-8 alkyl groups, C1-8 alkoxy, C1-8 halogenated alkyl, halogen, aryl, nitryl or amino. The thio-taxane derivative can be used for preparing medicines for treating hepatitis B.

This invention relates to the isolation of iodixanol (1,3-bis(acetamido)-N,N'-bis[3,5-bis(2,3-dihydroxypropylaminocarbonyl)-2,4,6-triiodophenyl]-2-hydroxypropane), more specifically to the isolation of iodixanol from an aqueous solution.

The invention belongs to the technical field of medicinal chemistry, and relates to a novel matrix metal protease inhibitor and medicinal use thereof. The inhibitor is benzamide ilomastat derivative as shown in a formula (1) defined in the description, wherein R1 includes but is not limited to 2-NH2, an amino group is substituted with an acetyl amino group, R2 includes but is not limited to aromatic groups such as hydrogen atoms, fluorine, chlorine, bromine, a methyl group, an ethyl group, NH2, substituted amino, a methoxyl group, an ethoxy group, a trifluoromethyl group, a cyclohexyl group, a phenyl group, substituted phenyl, thiophene, pyrrole, furan, thiazole and pyridine, and the substituted phenyl of R2 includes but is not limited to radical groups such as a methyl group, an ethyl group, a methoxyl group, an ethoxy group, a trifluoromethyl group, a hydroxyl group, fluorine, chlorine, bromine, an acetyl group and benzophenone connected with 4' position of a benzene ring. Experiments show that the benzamide ilomastat derivative can be used for preparing drugs for resisting invasion and diffusion of tumors such as a liver cancer, a lung cancer, a breast cancer and an ovarian cancer.