Preparation of cadmium selenide sulfide powder for electrophotography
专利汇可以提供Preparation of cadmium selenide sulfide powder for electrophotography专利检索，专利查询，专利分析的服务。并且PURPOSE: To obtain the titled uniform powder having high crystallizability and narrow particle size distribution, by blending an aqueous solution of Cd salt with an S source and an Se source, emulsifying them in an organic solvent, reacting them under heating to give powder, blending the powder with a flux, calcining the blend.
CONSTITUTION: An aqueous solution of Cd
2+ ion optionally containing ions of impurities such as Cu
2+ , In
3+ , Cl
- , etc. is blended with a sulfur source (e.g., thiourea, etc.) capable of evolving H
2 S by heating and a selenium source evolving H
2 Se, the aqueous solution is emulsifying with a surface active agent (e.g., nonionic surface active agent such as sorbitan ester, etc.) in an organic solvent (e.g., xylene, etc.), and reacted under heating to give CdS.CdSe mixed powder. This mixture is blended with 20W65wt% flux (e.g., CdCl
2 , etc.), calcined primarily at a temperature ≥50°C higher than the melting point of the flux, and calcined secondarily at a temperature lower than it. The titled uniform powder having high crystallizability and narrow particle size distribution is prepared.
COPYRIGHT: (C)1984,JPO&Japio，下面是Preparation of cadmium selenide sulfide powder for electrophotography专利的具体信息内容。
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