Aluminum phosphide fumigant convenient to handle

Abstract

The invention discloses an aluminum phosphide fumigant convenient to handle, comprising aluminum phosphide raw powder, ammonium carbamate, a binding agent, a disintegrating agent and an inertial filler, wherein among the materials, by weight, the binding agent accounts for 3-8% and includes one or more of polyethylene glycol, povidone and hydroxypropyl cellulose; the disintegrating agent accountsfor 2-6% and includes sodium carboxymethyl. The aluminum phosphide fumigant has no influence on the fumigating effect, and has high slag treatment rate; the binding agent and the disintegrating agentare harmless to the environment and human body, is more environmentally friendly, has stable properties, is easy to obtain, and has low cost.

Description

technical field [0001] The invention relates to the technical field of fumigation, in particular to an aluminum phosphide fumigant which is convenient to handle. Background technique [0002] The method of using toxic gases such as fumigants to prevent and control pests in storage has been widely used in the pest control treatment of food, Chinese medicinal materials, tobacco, fur, agricultural and sideline products, books, archives, and import and export quarantine treatment. Aluminum phosphide is the most commonly used fumigant for pest control of stored materials, especially in the grain and tobacco industries, because of its high insecticidal efficiency and economical convenience. As the only fumigant allowed to be used in the world at present-aluminum phosphide, its preparation process is a research hotspot in recent years. [0003] At present, tablets with an aluminum phosphide content of 56% are commonly used in the industry. According to the aluminum phosphide produ...

AI Technical Summary

Problems solved by technology

The aluminum phosphide residue is a hazardous waste: the product is difficult to completely react in the air, and the aluminum phosphide residue often contains a small amount of aluminum phosphide. The aluminum phosphide residue is serious and the residue is difficult to handle.

When the aluminum phosphide residue encounters open water, acid-base, oxidant and other substances, it will continue to react and release highly toxic phosphine gas, which may cause fire, explosion, human and animal poisoning and other accidents

At present, the water wet method is generally used to add water to the residue to promote the rapid reaction between aluminum phosphide and water to completely release phosphine gas, but at present, this method cannot release 100% phosphine gas from traditional aluminum phosphide tablets. gas, so there is still a lot of phosphine gas remaining in the residue

[0005] In order to solve the problem of aluminum phosphide residue treatment, our company has conducted many explorations on the treatment of aluminum phosphide residue, and successively used strong acid, strong alkali and high temperature to treat aluminum phosphide residue, which has high processing cost, difficult processing, and complicated process. question

After analysis and research, it is found that paraffin wax and magnesium stearate are the main factors that affect the treatment effect in the aluminum phosphide residue. aluminum

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