Lithopone filter press

Lithopone introduction

Lithopone is a white pigment, zinc sulfide and barium sulfate mixture. The reaction derived from the precipitate by filtration, dried and pulverized, and then calcined to red heat, and poured into water to quench derived from the sulfuric acid solution of zinc sulfide and barium sulfate. Hiding power is inferior to titanium dioxide. Not acid. Can be applied to all plastics, paints, coatings, thermoplastics, thermosetting plastics and paper. And pigment industry, cosmetics industry.Also used in rubber, paper, linoleum, linoleum, leather, watercolor paints, paper, enamel coloring. Used as a binding agent in the production of bulb.

Lithopone Synthesis

1. Roasting Leaching. The equation is as follows: 2C + O2 → 2CO2 BaSO4 + C → BaS +4 CO BaSO4 +4 CO → BaS +4 CO2 BaS + ZnSO4 → ZnS · BaSO4 The reaction solution by a plate and frame filter press to obtain a cake-like lithopone, the moisture content is not more than 45%, into the dry roaster roasting to change lithopone polymorph, then pickling with sulfuric acid in a temperature of 80 ° C. Finally, after washing, reinforcement toner, pressure filtration, drying and milling made. 2 barite calcination the preparation of barium sulfide solution. The reaction of sulfuric acid and zinc oxide, potassium permanganate and zinc powder was purified zinc sulfate solution obtained after compression. Further added in the preparation of barium sulfide solution are mixed to carry out the metathesis reaction, the mixture of zinc sulfide and barium sulfate precipitate, then by pressure filtration, the precipitate was calcined, wet milling, drying, crushing, Built lithopone finished product. Its ZnSO4 + BaS → ZnS + BaSO4

Lithopone filter press manufacturer

Zhengzhou Toper Industrial Equipment Co., Ltd. is a professional filter press, the filter product development, production, sales and technical service enterprises.Our products have a jack compaction filter,plate and frame filter press ， mechanical compaction filter, hydraulic pressure filter, programmable PLC automatically pull plate filter press, high temperature cast iron filter press, stainless steel filter press, membrane filter pressand so on. Lithopone filter press, your price of Lithopone filter press, manufacturers, models, pictures have any questions, please contact your supplier or vendor Zhengzhou Toper Industrial Equipment Co., Ltd. is a device complete.