Method of preparing precipitation method white carbon black by improved dropwise adding process
The invention provides a method of preparing precipitation method white carbon black by an improved dropwise adding process. The method comprises the following steps: preparing a base solution in a reaction kettle and controlling the content of water glass; controlling the stirring speed and the rea...
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| creator | JIANG DAMING TANG RENZHI ZHOU MIN TANG ZHIFAN LIU CUIJIE FU ZHOUPING PENG LINGJUN |
| description | The invention provides a method of preparing precipitation method white carbon black by an improved dropwise adding process. The method comprises the following steps: preparing a base solution in a reaction kettle and controlling the content of water glass; controlling the stirring speed and the reaction temperature according to different generated products, spraying sulfuric acid from the bottomof the reaction kettle and spraying a water glass solution from the bottom or top of the reaction kettle till the water glass solution is sprayed over; raising the temperature, spraying sulfuric acidfrom the bottom of the reaction kettle, controlling the pH of the reaction system, and carrying out acidification and curing till the reaction is completed; and carrying out filter pressing, washing,pulpifying and drying on the obtained synthesized liquid to obtain the precipitation method white carbon black. Compared with an existing precipitation method, as white carbon black of different specifications is prepared by sp |
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The method comprises the following steps: preparing a base solution in a reaction kettle and controlling the content of water glass; controlling the stirring speed and the reaction temperature according to different generated products, spraying sulfuric acid from the bottomof the reaction kettle and spraying a water glass solution from the bottom or top of the reaction kettle till the water glass solution is sprayed over; raising the temperature, spraying sulfuric acidfrom the bottom of the reaction kettle, controlling the pH of the reaction system, and carrying out acidification and curing till the reaction is completed; and carrying out filter pressing, washing,pulpifying and drying on the obtained synthesized liquid to obtain the precipitation method white carbon black. 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The method comprises the following steps: preparing a base solution in a reaction kettle and controlling the content of water glass; controlling the stirring speed and the reaction temperature according to different generated products, spraying sulfuric acid from the bottomof the reaction kettle and spraying a water glass solution from the bottom or top of the reaction kettle till the water glass solution is sprayed over; raising the temperature, spraying sulfuric acidfrom the bottom of the reaction kettle, controlling the pH of the reaction system, and carrying out acidification and curing till the reaction is completed; and carrying out filter pressing, washing,pulpifying and drying on the obtained synthesized liquid to obtain the precipitation method white carbon black. Compared with an existing precipitation method, as white carbon black of different specifications is prepared by sp</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS |
| title | Method of preparing precipitation method white carbon black by improved dropwise adding process |
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