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A platform for research: civil engineering, architecture and urbanism
Stone material coloring environment-friendly process
The invention discloses a stone material coloring environment-friendly process. The stone material coloring environment-friendly process comprises the following steps of (a) reducing the temperature of dried stones to be lower than 50 DEG C-60 DEG C and then soaking the stones in a coloring agent; (b) using clear water to wash or soak the colored and soaked stones; (c) boiling the stones subjected to water processing in high-temperature water under the alkaline condition for 20 to 40 minutes or more than 40 minutes. By means of the stone material coloring environment-friendly process, the stones are boiled in the high-temperature water under the alkaline condition after being soaked in the coloring agent, Fe(OH)3 and other precipitates produced by metal salts contained in the coloring agent can be recovered through precipitate filtering and other existing simple recovery devices, other reactants can be also recovered for reuse, and when boiled waste residues are recovered, the coloring agent can be deployed by adding HNO3 and other acids for activating treatment. In conclusion, compared with the mode that air serves as a heating medium, the stone material coloring environment-friendly process adopt alkaline water boiling, no harmful gas is produced in the alkaline water boiling process, and the environment-friendly economic benefit and social benefit are very remarkable.
Stone material coloring environment-friendly process
The invention discloses a stone material coloring environment-friendly process. The stone material coloring environment-friendly process comprises the following steps of (a) reducing the temperature of dried stones to be lower than 50 DEG C-60 DEG C and then soaking the stones in a coloring agent; (b) using clear water to wash or soak the colored and soaked stones; (c) boiling the stones subjected to water processing in high-temperature water under the alkaline condition for 20 to 40 minutes or more than 40 minutes. By means of the stone material coloring environment-friendly process, the stones are boiled in the high-temperature water under the alkaline condition after being soaked in the coloring agent, Fe(OH)3 and other precipitates produced by metal salts contained in the coloring agent can be recovered through precipitate filtering and other existing simple recovery devices, other reactants can be also recovered for reuse, and when boiled waste residues are recovered, the coloring agent can be deployed by adding HNO3 and other acids for activating treatment. In conclusion, compared with the mode that air serves as a heating medium, the stone material coloring environment-friendly process adopt alkaline water boiling, no harmful gas is produced in the alkaline water boiling process, and the environment-friendly economic benefit and social benefit are very remarkable.
Stone material coloring environment-friendly process
ZHUO QINGMING (author)
2015-04-08
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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