7 results about "Guanidine Sulfate" patented technology

The invention discloses a preparation method and antibacterial application of a cationic polymer rich in guanidyl, and belongs to the field of medical polymer materials. The preparation method of the cationic polymer rich in guanidyl comprises the following steps: dissolving thiolactone acrylamide in a solvent, and adjusting the pH value to be alkaline to obtain a thiolactone acrylamide solution; and adding an amine compound into the thiolactone acrylamide solution, reacting, and dialyzing to obtain the cationic polymer rich in guanidyl, wherein the amine compound is a primary amine compound or a secondary amine compound, and the amine compound contains agmatine sulfate. According to the invention, through molecular design and synthesis condition optimization, and screening of antimicrobial performance, biocompatibility and the like, the guanidyl cationic antibacterial polymer with excellent comprehensive performance of antibacterial effect and safety is finally obtained. The guanidyl cationic polymer shows good broad-spectrum antibacterial activity and biofilm resistance activity.

Provided is a carbon dioxide capture method, including: absorbing carbon dioxide in a gas with a guanidine sulfate aqueous solution to produce an inclusion complex of the carbon dioxide and the guanidine sulfate, whereby the carbon dioxide is captured from the gas. This application also provides a carbon dioxide capture composition and a use of a guanidine sulfate aqueous solution in capture, purification, storage, and transportation of carbon dioxide.

The application belongs to the technical field of carbon dioxide adsorbent preparation, and particularly relates to a composite adsorbent for carbon capture and a preparation method thereof. The composite adsorbent for carbon capture comprises guanidine sulfate and a carbon capture adsorption material, the carbon capture adsorption material comprises a porous solid adsorbent, efficient capture of carbon dioxide is realized through synergistic effect of chemical adsorption and physical adsorption, and the composite adsorbent has excellent comprehensive performance, mainly manifested as follows: the composite adsorbent cannot be decomposed and oxidized at 280 DEG C, and has outstanding thermal stability; under the condition of 1.6 MPa and 5% carbon dioxide concentration, the dynamic adsorption capacity reaches 12wt%-15wt%, and the composite adsorbent has high dynamic adsorption capacity; and the composite adsorbent also has high selectivity and high gas separation and purification rate.

The invention relates to a preparation method of 2-aminobenzimidazole, and belongs to the technical field of compound synthesis. The preparation method comprises the following steps: adding water into a reactor, adding o-phenylenediamine, and uniformly dispersing; slowly adding guanidine salt, uniformly dispersing, and controlling the temperature of the system in the feeding process to be not higher than 70 DEG C; and adding alkali liquor to adjust the pH value of the system to be alkalescent, then heating and carrying out a heat preservation reaction, and after the reaction is finished, carrying out post-treatment to obtain the 2-aminobenzimidazole product. The guanidine salt is at least one of guanidine hydrochloride, guanidine sulfate and guanidine nitrate. The molar ratio of the o-phenylenediamine to the guanidine salt is 1: (1.1-1.5). When the o-phenylenediamine and the guanidine salt react, the reaction temperature is 60-90 DEG C, and the reaction time is 6-10 hours. The preparation method has the advantages of cheap and easily available raw materials, high conversion rate, high atom utilization rate and better industrial application prospect.

The present application relates to a kind of 2-amino benzimidazole preparation method, belong to compound synthesis technical field.The preparation method is: in reactor, water is added, and o-phenylenediamine is uniformly dispersed;Then slowly add guanidine salt and uniformly dispersed, control the temperature of system during feeding process not higher than 70 DEG C;Add lye to adjust the pH of system to weak alkaline, then heat and keep warm reaction, after reaction is finished, 2-amino benzimidazole product is obtained after post-processing.The guanidine salt is at least one of guanidine hydrochloride, guanidine sulfate, guanidine nitrate.The molar ratio of o-phenylenediamine used and guanidine salt is 1: (1.1-1.5).When the o-phenylenediamine and guanidine salt react, the reaction temperature is 60-90 DEG C, and the reaction time is 6-10h.The raw material of the preparation method is cheap and easy to obtain, conversion rate is high, atom utilization rate is high, and has better industrial application prospect.

The application discloses a method for carbon dioxide capture, storage and transportation. The method uses guanidine sulfate powder to selectively absorb carbon dioxide in a gas mixture or pure carbon dioxide. When carbon dioxide under a certain pressure is contacted with guanidine sulfate, the carbon dioxide reacts with the guanidine sulfate to form a carbon dioxide-guanidine sulfate clathrate. The application uses guanidine sulfate powder to achieve efficient and low-energy carbon dioxide capture. The obtained carbon dioxide-guanidine sulfate clathrate can realize carbon dioxide storage and transportation at normal temperature and pressure. Moreover, the carbon dioxide separated by the method has extremely high purity, and the carbon dioxide purity can reach 100% in theory.

An anti-anxiety composition includes 2 grams of Beta Alanine; 0.75 grams of agmatine sulfate; 0.75 grams of taurine; 0.75 grams of magnesium citrate; and 100 mg of l-theanine. A method for decreasing anxiety in a subject includes administering to the subject a drinkable liquid that includes 0.25-2 grams of Beta Alanine.