title: [Production of chitosan used for flocculant in medium scale].
abstract: After the preparing chitosan in laboratory scale, the production of chitosan used for flocculant in medium scale was carried out. The optimum processes for producing chitosan in the three steps of reaction including removal calcium, removal protein and deacetylation were obtained. Comparing with the other methods for producing chitosan, the cost of this method cut down 22%, the production period shortened 66%, and the main properties were closed to or exceeded the commercial chitosan products.
authors: State Key Joint Laboratory of Environment Simulation and Pollution Control, Dept. of Environmental Science & Engineering, Tsinghua University, Beijing 100084, China.
authors: Defang
authors: D
authors: Zeng
authors: Gang
authors: G
authors: Yu
authors: Pengyi
authors: P
authors: Zhang
authors: Zhiwei
authors: Z
authors: Feng
mesh_terms: D000107:Acetylation; D001685:Biological Factors / Q000737:chemistry / Q000302:isolation & purification; D002118:Calcium / Q000737:chemistry*; D002686:Chitin / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification*; D048271:Chitosan; D006851:Hydrochloric Acid / Q000737:chemistry; D011506:Proteins / Q000737:chemistry*; D012972:Sodium Hydroxide / Q000737:chemistry; D013672:Technology / Q000379:methods
chemical_list: D001685:Biological Factors; D011506:Proteins; D002686:Chitin; D012972:Sodium Hydroxide; D048271:Chitosan; D006851:Hydrochloric Acid; D002118:Calcium