A pyrazole metal complex for absorption of carbon dioxide, a method for preparing the pyrazole metal complex, and a method for absorbing carbon dioxide are provided; wherein the product produced by reacting pyrazole metal complex and carbon dioxide may be transformed into several economically valuable compounds.

A pyrazole metal complex for absorption of carbon dioxide, a method for preparing the pyrazole metal complex, and a method for absorbing carbon dioxide are provided; wherein the product produced by reacting pyrazole metal complex and carbon dioxide may be transformed into several economically valuable compounds.

The present invention relates to a method for preparing a modification polymerization initiator with a high conversion ratio by minimizing side reactions. According to the method for preparing a modification polymerization initiator, a modification polymerization initiator which may easily initiate polymerization and provide a polymer with a functional group having affinity with a filler, may be prepared. Particularly, by performing the method using a continuous reactor, the production of by-products may be decreased, and as a result, the conversion ratio may be increased and a modification polymerization initiator with high purity may be prepared in a high yield.

The present invention relates to a method for preparing a modification polymerization initiator with a high conversion ratio by minimizing side reactions. According to the method for preparing a modification polymerization initiator, a modification polymerization initiator which may easily initiate polymerization and provide a polymer with a functional group having affinity with a filler, may be prepared. Particularly, by performing the method using a continuous reactor, the production of by-products may be decreased, and as a result, the conversion ratio may be increased and a modification polymerization initiator with high purity may be prepared in a high yield.

Provided in the present invention is a preparation method for a nano organometallic carboxylate which effectively solves the problems of a complex washing process, and cumbersome, dangerous and uneconomical preparation of lye in traditional methods for producing organometallic carboxylates. A new method for preparing high-quality organometallic carboxylates by using a carboxylic acid, caustic soda, a metal oxide or a hydroxide as starting materials, and using ball milling to assist reaction thereof. The present invention not only efficiently utilizes lye, it also obtains high-quality organometallic carboxylates, which overcomes the technical prejudice that the prior art uses calcium chloride, sodium chloride and other salts for poor reaction efficiency. The problem in environmental pollution caused by the washing waste liquid in the existing process is fundamentally solved. At the same time, addition of non-ionic surfactants makes ball milling more efficient and significantly reduces the particle size of the product.

Provided in the present invention is a preparation method for a nano organometallic carboxylate which effectively solves the problems of a complex washing process, and cumbersome, dangerous and uneconomical preparation of lye in traditional methods for producing organometallic carboxylates. A new method for preparing high-quality organometallic carboxylates by using a carboxylic acid, caustic soda, a metal oxide or a hydroxide as starting materials, and using ball milling to assist reaction thereof. The present invention not only efficiently utilizes lye, it also obtains high-quality organometallic carboxylates, which overcomes the technical prejudice that the prior art uses calcium chloride, sodium chloride and other salts for poor reaction efficiency. The problem in environmental pollution caused by the washing waste liquid in the existing process is fundamentally solved. At the same time, addition of non-ionic surfactants makes ball milling more efficient and significantly reduces the particle size of the product.

A technique that can synthesize an aromatic sodium compound easily, in a short time, and efficiently through a small number of steps is constructed. The invention comprises a step A in which, in a reaction solvent, an alkyl halide compound represented by general formula I (R.sup.1—X.sup.1) (wherein R.sup.1 is an alkyl group and X.sup.1 is a halogen atom) is reacted with a dispersion that is obtained by dispersing sodium into a dispersion solvent, thereby obtaining an alkyl sodium compound represented by general formula II (R.sup.1—Na) (wherein R.sup.1 is the same as R.sup.1 of general formula I); and a step B in which, a halogenated aromatic compound represented by general formula III (R.sup.2—X.sup.2) (wherein, in the formula, R.sup.2 is an aromatic group that may have a substituent that does not react with sodium, and X.sup.2 is a halogen atom) is added into the reaction solvent after the step A to react with the alkyl sodium compound represented by general formula II (R.sup.1—Na), which has been obtained in the step A, thereby performing halogen-sodium exchange and obtaining an aromatic sodium compound represented by general formula IV (R.sup.2—Na).

A technique that can synthesize an aromatic sodium compound easily, in a short time, and efficiently through a small number of steps is constructed. The invention comprises a step A in which, in a reaction solvent, an alkyl halide compound represented by general formula I (R.sup.1—X.sup.1) (wherein R.sup.1 is an alkyl group and X.sup.1 is a halogen atom) is reacted with a dispersion that is obtained by dispersing sodium into a dispersion solvent, thereby obtaining an alkyl sodium compound represented by general formula II (R.sup.1—Na) (wherein R.sup.1 is the same as R.sup.1 of general formula I); and a step B in which, a halogenated aromatic compound represented by general formula III (R.sup.2—X.sup.2) (wherein, in the formula, R.sup.2 is an aromatic group that may have a substituent that does not react with sodium, and X.sup.2 is a halogen atom) is added into the reaction solvent after the step A to react with the alkyl sodium compound represented by general formula II (R.sup.1—Na), which has been obtained in the step A, thereby performing halogen-sodium exchange and obtaining an aromatic sodium compound represented by general formula IV (R.sup.2—Na).

The present invention relates to a composition for clearing a biotissue and a method for clearing a biotissue using thereof.

The present invention relates to a composition for clearing a biotissue and a method for clearing a biotissue using thereof.