High-temperature resistant anti-corrosion clay special for acid pressure oxidative leaching high-pressure autoclave and preparation method thereof

The invention discloses a high-temperature resistant anti-corrosion clay special for an acid pressure oxidative leaching high-pressure autoclave, which is characterized by being prepared from the following raw materials in percentage by weight: 20-40 percent of vinyl epoxy synthetic resin and 60-80 percent of padding, wherein the padding contains the following raw materials in percentage by weight: silica fume, glass flake, titanium dioxide powder, graphite powder, aluminum oxide and barium sulfate. A preparation method of the high-temperature resistant anti-corrosion clay special for the acid pressure oxidative leaching high-pressure autoclave comprises the following concrete process: adding the vinyl epoxy synthetic resin and the padding into a reaction kettle, heating, and stirring andrubbing in vacuum sufficiently until no dry powder or bubbles exist, and finally obtaining the high-temperature resistant anti-corrosion clay special for the acid pressure oxidative leaching high-pressure autoclave. The clay prepared by the invention can meet the requirements of high temperature resistance, anticorrosion, abrasion resistance, low permeability and extremely high heat stability when carrying out direct acid pressure oxidative leaching on zinc sulfide concentrate in the high-pressure autoclave and is simple in process and convenient to manufacture.