Chlorine-free lignosulfonate as well as preparation method and application thereof
The invention discloses chlorine-free lignosulfonate as well as a preparation method and application thereof, and relates to the technical field of biochemical engineering. The preparation method specifically comprises the following steps: (1) adding alkali into production water at the temperature o...
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| creator | GAO JIAN BAI WEI FAN CHANGJIANG WANG PENGXU QI ZHOUQI SHEN CHAO WANG YANBIN LIANG ZHICHENG WANG YUZHI MA XIN QI SHANLONG REN XIAOBIN LIU LIYANG SUI YANFEI BIAN CHUNFENG ZHANG SONG LUO ANLIANG WANG CHUANG PEI YU ZHAO QINGQIANG |
| description | The invention discloses chlorine-free lignosulfonate as well as a preparation method and application thereof, and relates to the technical field of biochemical engineering. The preparation method specifically comprises the following steps: (1) adding alkali into production water at the temperature of 75-85 DEG C to adjust the pH value to 12-13; (2) adding wood powder into the production water after the pH value is adjusted, and stirring at a constant temperature; and (3) adding industrial anhydrous sodium sulfite into the solution obtained in the step (2), and stirring at a constant temperature to finish the operation. According to the method, the lignosulfonate solution without chloride ions is extracted, the lignosulfonate solution is suitable for being used as a dispersing agent for oxygen pressure leaching of the zinc sulfide concentrate, chloride ions brought into an all-wet-process zinc system are reduced, and the pressure of chloride ion removal of the all-wet-process zinc smelting system is relieved. |
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The preparation method specifically comprises the following steps: (1) adding alkali into production water at the temperature of 75-85 DEG C to adjust the pH value to 12-13; (2) adding wood powder into the production water after the pH value is adjusted, and stirring at a constant temperature; and (3) adding industrial anhydrous sodium sulfite into the solution obtained in the step (2), and stirring at a constant temperature to finish the operation. According to the method, the lignosulfonate solution without chloride ions is extracted, the lignosulfonate solution is suitable for being used as a dispersing agent for oxygen pressure leaching of the zinc sulfide concentrate, chloride ions brought into an all-wet-process zinc system are reduced, and the pressure of chloride ion removal of the all-wet-process zinc smelting system is relieved.</description><language>chi ; eng</language><subject>ADHESIVES ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS ; DYES ; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; ORGANIC MACROMOLECULAR COMPOUNDS ; PAINTS ; POLISHES ; THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240705&DB=EPODOC&CC=CN&NR=118290764A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76419</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240705&DB=EPODOC&CC=CN&NR=118290764A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GAO JIAN</creatorcontrib><creatorcontrib>BAI WEI</creatorcontrib><creatorcontrib>FAN CHANGJIANG</creatorcontrib><creatorcontrib>WANG PENGXU</creatorcontrib><creatorcontrib>QI ZHOUQI</creatorcontrib><creatorcontrib>SHEN CHAO</creatorcontrib><creatorcontrib>WANG YANBIN</creatorcontrib><creatorcontrib>LIANG ZHICHENG</creatorcontrib><creatorcontrib>WANG YUZHI</creatorcontrib><creatorcontrib>MA XIN</creatorcontrib><creatorcontrib>QI SHANLONG</creatorcontrib><creatorcontrib>REN XIAOBIN</creatorcontrib><creatorcontrib>LIU LIYANG</creatorcontrib><creatorcontrib>SUI YANFEI</creatorcontrib><creatorcontrib>BIAN CHUNFENG</creatorcontrib><creatorcontrib>ZHANG SONG</creatorcontrib><creatorcontrib>LUO ANLIANG</creatorcontrib><creatorcontrib>WANG CHUANG</creatorcontrib><creatorcontrib>PEI YU</creatorcontrib><creatorcontrib>ZHAO QINGQIANG</creatorcontrib><title>Chlorine-free lignosulfonate as well as preparation method and application thereof</title><description>The invention discloses chlorine-free lignosulfonate as well as a preparation method and application thereof, and relates to the technical field of biochemical engineering. 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The preparation method specifically comprises the following steps: (1) adding alkali into production water at the temperature of 75-85 DEG C to adjust the pH value to 12-13; (2) adding wood powder into the production water after the pH value is adjusted, and stirring at a constant temperature; and (3) adding industrial anhydrous sodium sulfite into the solution obtained in the step (2), and stirring at a constant temperature to finish the operation. According to the method, the lignosulfonate solution without chloride ions is extracted, the lignosulfonate solution is suitable for being used as a dispersing agent for oxygen pressure leaching of the zinc sulfide concentrate, chloride ions brought into an all-wet-process zinc system are reduced, and the pressure of chloride ion removal of the all-wet-process zinc smelting system is relieved.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | Chlorine-free lignosulfonate as well as preparation method and application thereof |
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