On March 15th, 1941, Yongli Soda Factory held a commendation meeting, and named the new soda production method "Hou's soda production method". Hou Debang, a brave man who climbed the peak of science, was not satisfied with what he had achieved. He thinks that although the new alkali production method has made a great breakthrough compared with the Cha 'an method, it is still not ideal. He wants to find a better alkali production method, combine the alkali production industry with the synthetic ammonia industry, and make the alkali production technology more perfect.