刘作华

Liu Zuohua is an author with published works in the fields of industrial technology and examination-oriented books. Public information about him is limited, and details of his personal life, educational background, and professional positions remain unclear. Judging from the four works held in the collection, his writing focuses mainly on industrial technology topics such as chemical safety and green manufacturing of wet-process phosphoric acid, as well as high-temperature conversion and resource recycling technologies for electrolytic manganese residue. He has also worked on case-based tutorials concerning chemical safety technology and evaluation, so his output combines technical monographs with teaching references. Overall, his works address engineering practice and professional study, with topics closely tied to real-world needs such as resource recycling and safety in chemical production. They may serve technicians and exam-preparation readers in related fields, while further material is still needed to complete the picture of the author's own experience and academic background.