5 results about "Lithium methoxide" patented technology

The present invention relates to a method of preparing a heterogeneous linear carbonate, the method including performing a transesterification reaction of dimethyl carbonate (DMC) and ethanol (EtOH) in the presence of a catalyst, wherein the catalyst is one or more selected from the group consisting of lithium methoxide (LME), lithium ethoxide (LEE), sodium methoxide (SME), sodium hydroxide (NaOH), and a mixture thereof, and the catalyst is input in a state of being dissolved in a sulfoxide-based solvent.

The application discloses a synthetic method of a composite coating and application of the composite coating to a surface of an artificial bone, and belongs to the technical field of biomaterials.The synthetic steps of the composite coating are as follows: firstly, the artificial bone substrate is cleaned and subjected to oxygen plasma activation pretreatment; secondly, polyether ether ketone is dissolved in N-methyl pyrrolidone, mixed with tantalum-doped lithium zirconate nanowires and a dispersing agent, and subjected to ultrasonic treatment to form a coating slurry; the coating slurry is formed into a wet film on the substrate by dip-coating; and finally, the wet film is subjected to step-by-step heat treatment and solidification to obtain the composite coating.The preparation steps of the nanowires are as follows: zirconium ethoxide, tantalum ethoxide and lithium methoxide are used as precursors, and a precursor sol is obtained through a sol-gel reaction under the control of water quantity; the nanowires are grown through a hydrothermal reaction combined with a morphology directing agent; and finally, the nanowires are washed, dried and calcined to obtain the final product.The method has simple process, and the obtained coating has excellent biocompatibility, mechanical strength and potential bioactivity, is suitable for surface modification of an artificial bone implant, and can effectively promote bone integration.

The application discloses a preparation method of lithium saccharin, which comprises the following steps: 1, under the condition of a polar organic solvent, adding saccharin and an alkaline organic lithium reagent, controlling the temperature to form a homogeneous phase reaction system, and performing an acid-base neutralization reaction; the alkaline organic lithium reagent is selected from one of the following: methanolate, ethanolate, diisopropylaminolithium, hexamethyldisilazanide, n-butyllithium and methyllithium; 2, after the reaction is completed, cooling and crystallization or adding an inert solvent for recrystallization, and then washing and drying to obtain the lithium saccharin product. The method has the advantages of simple process route, convenient post-treatment, high yield and high product purity.

The invention relates to the field of synthesis of chemical raw materials, in particular to a cyclohexanehexol metal salt and a synthesis method thereof. According to the method, inositol and lithium methoxide or sodium methoxide are used as raw materials and react in a methanol environment to obtain high-purity inositol hexa-lithium or inositol hexa-sodium, and the method is simple to operate, mild in reaction condition and suitable for industrial popularization; the method is carried out in a manner of excessive lithium methoxide or sodium methoxide, the excessive lithium methoxide or sodium methoxide and solvent methanol can be repeatedly recycled, no other by-products are generated, and the method is environment-friendly.