Method for preparing plant jatropha curcas insecticide
An insecticide and plant technology, applied in the field of insecticide preparation, can solve the problems of rare comprehensive utilization of Jatropha japonica, and achieve the effects of simple and easy equipment and preparation method, good use effect and remarkable insecticidal effect.
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[0022] A. Weigh 2kg of jatropha seeds and dry them naturally (if possible, they can be dried in a dryer at 98 or 102 or 105°C for 2 or 3 or 4 or 5 hours). Make the moisture lower than 10% of the seed, remove the seed shell to obtain the seed kernel, weigh 1 kg of the seed kernel, crush it into a paste with a pulverizer, and put it in a container.
[0023] B. Pour 5~7kg of petroleum ether {60-90℃} into the container and mix evenly, put it into the ultrasonic instrument, and ultrasonically in the ultrasonic instrument for 25 or 28 or 30 or 35 minutes to dissolve the fatty oil into the solvent . Suction filter the fatty oil-containing solution into the solvent recovery container to recover the solvent, and pump the recovered solvent back into the ultrasonic instrument container.
[0024] C. Repeat the process in step B for 3 to 5 times; the fatty oil in Jatropha seeds is separated by sherwood oil.
[0025] D. Merge the fatty oil, the fatty oil is 450g-600g, put the residue in a...
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