Emergency treatment method of chlorine effusion during producing beta-hydroxyl-beta-methyl butyric acid

Abstract

The invention relates to an emergency treatment method of chlorine effusion during producing a beta-hydroxyl-beta-methyl butyric acid. The method for emergently treating the chlorine effusion during the production of the beta-hydroxyl-beta-methyl butyric acid and derivatives thereof by a diacetone alcolol method comprises the following steps of: once chlorine effuses, immediately stopping dropping a sulfuric acid or hydrochloric acid solution, immediately adding sodium bisulfite, stirring for 0.5-1 hour; and then continuing dropping the sulfuric acid or the hydrochloric acid solution till a complete acidification, wherein the weight ratio of the sodium bisulfite to the diacetone alcolol as the raw material is 1:6-1:8. The chlorine effusion is caused by excessive sodium hypochlorite (NaOCl) aqueous solution during a haloform reaction and the chlorine is then generated by the reaction between the sodium hypochlorite and the sulfuric acid (hydrochloric acid) during the acidification. In the invention, the sodium bisulfite is used for neutralizing the excessive sodium hypochlorite, and generated sulfate and hydrochloride do not influence the extraction of HMB, thus the product quality is not influenced.

Description

(1) Technical field [0001] The invention provides a kind of diacetone alcohol method to produce HMB (being β-hydroxyl-β-methylbutyric acid, also known as 3-hydroxyl-3-methylbutyric acid) and derivatives thereof when chlorine gas escapes The emergency treatment method belongs to the field of fine chemical production. (2) Background technology [0002] HMB (that is, β-hydroxy-β-methylbutyric acid, also known as 3-hydroxy-3-methylbutyric acid) is a metabolite of leucine in the human body. HMB and its derivatives can be used to promote animal muscle growth, It can enhance the immune ability of mammals, reduce cholesterol and low-density lipoprotein (LDL) levels in the human body to reduce the occurrence of coronary heart disease and cardiovascular disease, and can also help enhance the body's ability to fix nitrogen and maintain protein levels in the body, so it is widely used. [0003] The industrialized production of HMB and its derivatives generally adopts the diacetone alco...

AI Technical Summary

Problems solved by technology

In the production process, sometimes chlorine gas escapes during acidification, which will cause environmental pollution in the production workshop. If measures are not taken in time, the mild one will make the operator cough and have difficulty breathing, and the severe one will make the operator feel sick, vomit, faint or even life-threatening

When this happens, the general measure is to open the windows and start the exhaust fan to keep the air in the production workshop unobstructed, which cannot solve the problem fundamentally.