Camphor trees are a specialty tree species in China. Their roots, stems, branches and leaves all contain camphor and camphor oil. Processing camphor and camphor oil is one of the ways for rural areas to get rich. It is mainly obtained through distillation. Its technological process and operation methods are as follows:

The raw materials are selected from the trunk and roots of the camphor tree, each containing 2% to 4% camphor and camphor oil, while the branches and leaves each contain 1% to 3%. The older the tree, the higher the content. Large slices with a bitter taste contain more camphor, while those with a spicy and astringent taste contain more camphor oil. It is best to collect in autumn when the leaves have a high brain content. When picking leaves, leave 16 leaves on each tree, and it is advisable to choose trees that are over 30 years old. The felled branches and roots should be split into thin slices that are 2.5 centimeters wide, 1 centimeter thick and 10 centimeters long.

(2) The steaming pot for the upper distillation should not be made of iron; copper or stainless steel is preferred. A wooden steaming bucket is set on the steaming stove, which is of the same size as the pot's diameter. Put it on the pot. When processing, put the camphor leaves or thin slices of camphor wood into the steaming bucket. The water in the pot is 10 centimeters away from the raw materials. After adding materials, immediately close the pot cover and the loading port, and then check the connection between the distillation pot and the cooler. Only if there is no leakage can the distillation begin. When distilling, the water level in the pot should be maintained to prevent it from burning dry or burning. The water separated from the oil is used as return water and reused in the steamer.

(3) The steam containing camphor and camphor oil is cooled and separated. It passes through the gas guide pipe and enters the multi-ring disc-shaped cooler. After condensation, the camphor and oil float on the water surface. The separated water should be transparent. If it is not transparent, it should be separated again to increase the oil yield. Filter the camphor and camphor oil floating on the water surface with gauze. Crude camphor is obtained. The remaining camphor oil contains most of the camphor, so it is called camphor oil.

(4) When extracting camphor with camphor oil, the camphor oil is placed in a distillation pot for secondary distillation. The distillation liquid collected at 155-200℃ is called white oil. After the white oil is cooled, crystalline camphor precipitates out. Then it is filtered and the filtrate is distilled several times until no camphor precipitates out. What remains is camphor oil.

(5) The finished camphor oil should be packaged in black iron galvanized drums, and proper sealing should be ensured. Camphor is a soft, colorless and transparent crystal with a pungent and fragrant taste. It should be packed in moisture-proof paper or film and placed in a wooden box to prevent moisture. Processing technology of camphor

Camphor trees are a specialty tree species in China. Their roots, stems, branches and leaves all contain camphor and camphor oil. Processing camphor and camphor oil is one of the ways for rural areas to get rich. It is mainly obtained through distillation. Its technological process and operation methods are as follows:

The raw materials are selected from the trunk and roots of the camphor tree, each containing 2% to 4% camphor and camphor oil, while the branches and leaves each contain 1% to 3%. The older the tree, the higher the content. Large slices with a bitter taste contain more camphor, while those with a spicy and astringent taste contain more camphor oil. It is best to collect in autumn when the leaves have a high brain content. When picking leaves, leave 16 leaves on each tree, and it is advisable to choose trees that are over 30 years old. The felled branches and roots should be split into thin slices that are 2.5 centimeters wide, 1 centimeter thick and 10 centimeters long.

(2) The steaming pot for the upper distillation should not be made of iron; copper or stainless steel is preferred. A wooden steaming bucket is set on the steaming stove, which is of the same size as the pot's diameter. Put it on the pot. When processing, put the camphor leaves or thin slices of camphor wood into the steaming bucket. The water in the pot is 10 centimeters away from the raw materials. After adding materials, immediately close the pot cover and the loading port, and then check the connection between the distillation pot and the cooler. Only if there is no leakage can the distillation begin. When distilling, the water level in the pot should be maintained to prevent it from burning dry or burning. The water separated from the oil is used as return water and reused in the steamer.

(3) The steam containing camphor and camphor oil is cooled and separated. It passes through the gas guide pipe and enters the multi-ring disc-shaped cooler. After condensation, the camphor and oil float on the water surface. The separated water should be transparent. If it is not transparent, it should be separated again to increase the oil yield. Filter the camphor and camphor oil floating on the water surface with gauze. Crude camphor is obtained. The remaining camphor oil contains most of the camphor, so it is called camphor oil.

(4) When extracting camphor with camphor oil, the camphor oil is placed in a distillation pot for secondary distillation. The distillation liquid collected at 155-200℃ is called white oil. After the white oil is cooled, crystalline camphor precipitates out. Then it is filtered and the filtrate is distilled several times until no camphor precipitates out. What remains is camphor oil.

(5) The finished camphor oil should be packaged in black iron galvanized drums, and proper sealing should be ensured. Camphor is a soft, colorless and transparent crystal with a pungent and fragrant taste. It should be packed in moisture-proof paper or film and placed in a wooden box to prevent moisture.