2. Whale oil can be used in tanning industry, tempering bath (steelmaking) and lubricant. After hydrogenation, it can be used as raw materials for eating and making soap, candles and so on.
3. Whale meat accounts for about half of the whale's weight. In addition to grinding into coarse powder as feed or fertilizer field, it can also be eaten by people after processing.
4. Whale fat is a kind of animal oil rich in fat. It not only contains a lot of glycerol, but also can be used to process nitroglycerin and cigarettes in synthetic explosives, as well as to make soap and refine advanced lubricating oil.
Extended data
There are many kinds of whales, which can be generally divided into two categories: one is baleen whales, which have no teeth; One is the toothed whale, which has sharp teeth. Whales are very big, so baleen whales mainly eat shrimp and small fish.
When they swim in the ocean, they open their mouths, suck many fish and shrimps into their mouths together with seawater, then close their mouths, filter seawater out of their whiskers and swallow them into their stomachs. They can eat more than 2000 kilograms a meal.
Toothed whales mainly eat big fish and marine animals. When they meet big fish and marine animals, they will pounce on them fiercely, bite them with sharp teeth and eat them quickly.
Baidu encyclopedia-whaling
Baidu encyclopedia-whale