Insect repellant with stalks as main material and its prepn

Abstract

The present invention is insect repellant with stalks as main material and its preparation. The insect repellant consists of mainly circulating liquid 750-850 weight portions, plant ash 120-160 weight portions, calcium hydroxide 5-25 weight portions, purifying agent 15-45 weight portions, active carbon 0.5-0.7 weight portions, and the purifying agent consists of mainly calcium hydroxide 3-4 weight portions, sodium bicarbonate 1-1.5 weight portions, potassium carbonate 1.5-2 weight portions, borax 0.5-1 weight portions, magnesium chloride 0.5-1.5 weight portions, sodium dodecyl sulphonate 1.5-2.5 weight portions. The circulating liquid is produced during treating stalk gas with the water solution of the purifying agent to eliminate tar, corrosive gas, non-flammable gas and other impurity; and the plant ash is the solid residue of burning stalk. The insect repellant may be used in promoting the growth of crop.

Description

technical field

[0001] The invention mainly relates to an insect repellent, in particular to an insect repellent with straw as the main raw material. Background technique

[0002] Straw gas is a large amount of combustible gas mainly composed of carbon monoxide produced by crushing biomass materials such as crop straws and insufficient combustion in an oxygen-deficient state. The generation of straw gas is often accompanied by the generation of carbon dioxide, sulfur dioxide, wood tar, wood acetic acid and other impurity components, so in the production process of straw gas, there is a chemical treatment of tar, corrosive gas, non-combustible gas and impurities. The process is to make the circulating liquid generated by absorbing these substances in water, after detection and analysis, there are alkaloids of straw in these circulating liquids, as well as trace elements such as boron, potassium, nitrogen, iron, calcium, etc. required by agricultural plants. Discharging these...