| 摘要 |
<p>Light ceramic proppants made from a mixture of clays, characterised in that they are manufactured from a mixture of raw materials consisting of: -illite-beidellite-kaolinite high-plastic clays of the Poznan series in the amount of 10% to 40% by weight; -kaoliniteclays in the amount of 30% to 45% by weight; -kaolin in the amount of 30% to 40% by weight; -fly ash from brown coal combusted in a power plantin the amount of 10% to 35% by weight; -and treatment agents in the amount of up to 10%by weight.</p> |
