4 results about "Potassium hydrocarbonate" patented technology

The invention discloses a production method of distiller's grain fermentation liquid fertilizer specially applied to roxburgh rose. The distiller's grain fermentation liquid fertilizer is prepared bythe step of evenly mixing 50 to 80 parts of distiller's grain fermentation extracting solution, 0.5 to 1 part of microelement, 5 to 10 parts of seaweed meal, 5 to 10 parts of natural active organism,2 to 5 parts of potassium bicarbonate, 2 to 5 parts of natural active organism and 2 to 5 parts of natural surface active agent. A preparation method of the distiller's grain fermentation extracting solution comprises the steps: evenly stirring 50 to 80 parts of distiller's grain, 50 to 150 parts of rice washing water, 1 to 2 parts of EM microflora fermentation liquid and 0.5 to 1 part of sugar, performing composting fermentation at the room temperature to obtain a distiller's grain fermentation material, stirring and extracting through a sodium carbonate water solution, filtering and performing evaporation and condensation on obtained filtrate until the density is 1.1 to 1.2 to obtain distiller's grain fermentation extracting solution. The distiller's grain fermentation liquid fertilizerdisclosed by the invention has a good use effect, meanwhile can effectively prevent pest and disease damage to the roxburgh rose and is high-efficiency environment-friendly liquid fertilizer.

The present application relates to the technical field of fertilizer preparation, and provides a kind of instant fertilizer, including disintegrating agent and compound fertilizer, the disintegrating agent is the mixture of one or several of sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, citric acid, polyvinylpyrrolidone K30, sodium carboxymethyl starch, low-substituted hydroxypropyl cellulose, cross-linked polyvinylpyrrolidone, cross-linked sodium carboxymethyl cellulose, sodium carboxymethyl cellulose, and the disintegrating agent is obtained by treating straw as raw material. The instant fertilizer prepared by the method of the present application can provide various nutrients required by crops, has the advantages of rapid dissolution, easy absorption, good fertilizer effect, etc.

This application discloses nalmefene base, its preparation method, and its application, belonging to the field of pharmaceutical technology. The preparation method of nalmefene includes the following steps: mixing nalmefene hydrochloride with water to form an aqueous solution of nalmefene hydrochloride; reacting the aqueous solution of nalmefene hydrochloride with an aqueous solution of an alkaline component to form nalmefene base; the pH of the nalmefene hydrochloride is 4.0-6.5; the alkaline component includes at least one selected from sodium carbonate, sodium bicarbonate, potassium carbonate, potassium bicarbonate, sodium acetate, ammonia, and sodium dihydrogen phosphate. This application uses nalmefene hydrochloride with a pH of 4.0-6.0 to undergo a desalting reaction with an aqueous solution of a strong base-weak acid salt or a weak base, crystallizing out nalmefene base. This effectively controls the particle size and shape of nalmefene base, obtaining small-particle-size, low-content, stable, and poorly soluble tablet-shaped nalmefene base without pulverization. It is less prone to burst release, meeting the requirements for sustained-release formulations, and the reaction is mild, green, and economical.

This invention discloses a process and system for regenerating potassium hydroxide based on the lime slurry method, belonging to the field of alkaline hydrogen production technology. It includes the following steps: 1) pre-treating and purifying spent alkaline solution containing potassium carbonate and / or potassium bicarbonate; 2) subjecting the pre-treated spent alkaline solution to a staged reaction; 3) performing solid-liquid separation on the slurry after the secondary reaction to obtain a clear liquid containing potassium hydroxide and a calcium carbonate filter cake; 4) further purifying the clear liquid to obtain a potassium hydroxide solution. The solid-liquid separation process innovatively employs a two-stage reaction process with gradient temperature control, combined with ultrasonic treatment and solid-liquid separation, achieving a potassium hydroxide recovery rate of over 95%, a potassium hydroxide purity of ≥98% in the regenerated alkaline solution, and a calcium ion residue of ≤5ppm, allowing for direct reuse in an alkaline electrolyzer.