titanium dioxide for coatings

In conclusion, paint pigment factories are more than just manufacturing plants; they are the crucibles of color, where science and art intertwine to create the palette of our world. They symbolize the fusion of technology and creativity, playing a crucial role in shaping the visual aesthetics of our society. From the subtle shades of a Monet canvas to the bold hues of a modern skyscraper, the work of these factories is ever-present, often unnoticed but always essential.

...

, 2. The herein-described process for manufacturing lithopone of various grades and a by-product of sodium hydrosulfid, which consists in preparing separate solutions of zinc sulfate and barium sulfid, which solutions are mixed with each other and with that of sodium bisulfate, all in equivalent and calculated amounts to produce and precipitate the desired grade of lithopone and leave the so dium hydrosulfid in solution, substantially as described.

...