IN-SITU PCC SEQUENTIAL IN-SITU PRECIPITATED CALCIUM CARBONATE PROCESSING METHOD FOR PREPARING HAND SHEETS WITH THE WASTE LIME MUD
An objective of the present invention is to provide a sequential in-situ precipitated calcium carbonate (PCC) processing method for manufacturing hand sheets with waste lime mud, which increases the whiteness of lime mud by calcination and hydration processes and increase papermaking brightness to m...
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| creator | SEONG YOUNG NAM CHUN SIK KIM JI WHAN AHN SEONGHO LEE |
| description | An objective of the present invention is to provide a sequential in-situ precipitated calcium carbonate (PCC) processing method for manufacturing hand sheets with waste lime mud, which increases the whiteness of lime mud by calcination and hydration processes and increase papermaking brightness to manufacture hand sheets. To achieve this, the method comprises: a calcination step of calcining and converting lime mud into calcium oxide; a hydration step of hydrating and converting the calcined calcium oxide into calcium hydroxide; a homogenization step of adding the hydrated calcium hydroxide to a pulp slurry and homogenizing the mixture; an in situ carbonation step of supplying carbon dioxide (CO_2) to the homogenized mixture to convert the calcium hydroxide into calcium carbonate; and a hand sheet manufacturing step of manufacturing hand sheets from the mixture containing PCC and the pulp slurry.
본 발명의 목적은 하소 및 수화 공정에 의해 라임 머드의 백색도를 개선하고, 핸드 시트를 제조하기 위해 제지 명도를 개선하는 폐라임 머드로 핸드 시트를 제조하기 위한 다단계 공정 현장 IN-SITU PCC 처리 방법을 제공하는 것이다. 상기 목적을 달성하기 위해, 본 발명에 따른 폐라임 머드로 핸드 시트를 제조하기 위한 다단계 공정 현장 IN-SITU PCC 처리 방법은, 라임 머드를 하소하여 산화 칼슘으로 전환시키는 하소 단계; 하소된 상기 산화 칼슘을 수화하여 수산화 칼슘으로 전환시키는 수화 단계; 수화된 상기 수산화 칼슘을 펄프 슬러리에 첨가하고 균질화시키는 균질화 단계; 균질화된 혼합물에 이산화탄소(CO2)를 공급하여 상기 수산화 칼슘을 탄산 칼슘으로 전환시키는 현장 탄산화 단계; 및 침전된 상기 탄산 칼슘 및 상기 펄프 슬러리를 함유하는 혼합물로부터 핸드 시트를 제조하는 핸드 시트 제조 단계;를 포함하는 것을 특징으로 한다. |
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본 발명의 목적은 하소 및 수화 공정에 의해 라임 머드의 백색도를 개선하고, 핸드 시트를 제조하기 위해 제지 명도를 개선하는 폐라임 머드로 핸드 시트를 제조하기 위한 다단계 공정 현장 IN-SITU PCC 처리 방법을 제공하는 것이다. 상기 목적을 달성하기 위해, 본 발명에 따른 폐라임 머드로 핸드 시트를 제조하기 위한 다단계 공정 현장 IN-SITU PCC 처리 방법은, 라임 머드를 하소하여 산화 칼슘으로 전환시키는 하소 단계; 하소된 상기 산화 칼슘을 수화하여 수산화 칼슘으로 전환시키는 수화 단계; 수화된 상기 수산화 칼슘을 펄프 슬러리에 첨가하고 균질화시키는 균질화 단계; 균질화된 혼합물에 이산화탄소(CO2)를 공급하여 상기 수산화 칼슘을 탄산 칼슘으로 전환시키는 현장 탄산화 단계; 및 침전된 상기 탄산 칼슘 및 상기 펄프 슬러리를 함유하는 혼합물로부터 핸드 시트를 제조하는 핸드 시트 제조 단계;를 포함하는 것을 특징으로 한다.</description><language>eng ; kor</language><subject>APPARATUS THEREFOR ; CHEMISTRY ; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS ; DISPOSAL OF SOLID WASTE ; INORGANIC CHEMISTRY ; METALLURGY ; PAPER-MAKING ; PERFORMING OPERATIONS ; PRODUCTION OF CELLULOSE ; PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS ; RECLAMATION OF CONTAMINED SOIL SOIL ; REGENERATION OF PULPING LIQUORS ; TEXTILES ; TRANSPORTING</subject><creationdate>2022</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=20220322&DB=EPODOC&CC=KR&NR=20220035580A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220322&DB=EPODOC&CC=KR&NR=20220035580A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SEONG YOUNG NAM</creatorcontrib><creatorcontrib>CHUN SIK KIM</creatorcontrib><creatorcontrib>JI WHAN AHN</creatorcontrib><creatorcontrib>SEONGHO LEE</creatorcontrib><title>IN-SITU PCC SEQUENTIAL IN-SITU PRECIPITATED CALCIUM CARBONATE PROCESSING METHOD FOR PREPARING HAND SHEETS WITH THE WASTE LIME MUD</title><description>An objective of the present invention is to provide a sequential in-situ precipitated calcium carbonate (PCC) processing method for manufacturing hand sheets with waste lime mud, which increases the whiteness of lime mud by calcination and hydration processes and increase papermaking brightness to manufacture hand sheets. To achieve this, the method comprises: a calcination step of calcining and converting lime mud into calcium oxide; a hydration step of hydrating and converting the calcined calcium oxide into calcium hydroxide; a homogenization step of adding the hydrated calcium hydroxide to a pulp slurry and homogenizing the mixture; an in situ carbonation step of supplying carbon dioxide (CO_2) to the homogenized mixture to convert the calcium hydroxide into calcium carbonate; and a hand sheet manufacturing step of manufacturing hand sheets from the mixture containing PCC and the pulp slurry.
본 발명의 목적은 하소 및 수화 공정에 의해 라임 머드의 백색도를 개선하고, 핸드 시트를 제조하기 위해 제지 명도를 개선하는 폐라임 머드로 핸드 시트를 제조하기 위한 다단계 공정 현장 IN-SITU PCC 처리 방법을 제공하는 것이다. 상기 목적을 달성하기 위해, 본 발명에 따른 폐라임 머드로 핸드 시트를 제조하기 위한 다단계 공정 현장 IN-SITU PCC 처리 방법은, 라임 머드를 하소하여 산화 칼슘으로 전환시키는 하소 단계; 하소된 상기 산화 칼슘을 수화하여 수산화 칼슘으로 전환시키는 수화 단계; 수화된 상기 수산화 칼슘을 펄프 슬러리에 첨가하고 균질화시키는 균질화 단계; 균질화된 혼합물에 이산화탄소(CO2)를 공급하여 상기 수산화 칼슘을 탄산 칼슘으로 전환시키는 현장 탄산화 단계; 및 침전된 상기 탄산 칼슘 및 상기 펄프 슬러리를 함유하는 혼합물로부터 핸드 시트를 제조하는 핸드 시트 제조 단계;를 포함하는 것을 특징으로 한다.</description><subject>APPARATUS THEREFOR</subject><subject>CHEMISTRY</subject><subject>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS</subject><subject>DISPOSAL OF SOLID WASTE</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><subject>PAPER-MAKING</subject><subject>PERFORMING OPERATIONS</subject><subject>PRODUCTION OF CELLULOSE</subject><subject>PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS</subject><subject>RECLAMATION OF CONTAMINED SOIL SOIL</subject><subject>REGENERATION OF PULPING LIQUORS</subject><subject>TEXTILES</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNi7EKwjAURbs4iPoPD5wLoaXgGtNX87BNavJCx1IkTqKF-gP-uS2Is9OBc-9ZJ28yqScO0CoFHi8BDZOs4acdKmqJJWMJStaKQjPTHa2Z1Txbhd6TOUGDrG0JlXVL1Eq3SC1NCV4jsoeOWANrhE76Oa2pQWhCuU1Wt-E-xd2Xm2RfISudxvHZx2kcrvERX_3ZZSLLhMiL4iBk_t_rA5fRPSo</recordid><startdate>20220322</startdate><enddate>20220322</enddate><creator>SEONG YOUNG NAM</creator><creator>CHUN SIK KIM</creator><creator>JI WHAN AHN</creator><creator>SEONGHO LEE</creator><scope>EVB</scope></search><sort><creationdate>20220322</creationdate><title>IN-SITU PCC SEQUENTIAL IN-SITU PRECIPITATED CALCIUM CARBONATE PROCESSING METHOD FOR PREPARING HAND SHEETS WITH THE WASTE LIME MUD</title><author>SEONG YOUNG NAM ; CHUN SIK KIM ; JI WHAN AHN ; SEONGHO LEE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_KR20220035580A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; kor</language><creationdate>2022</creationdate><topic>APPARATUS THEREFOR</topic><topic>CHEMISTRY</topic><topic>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS</topic><topic>DISPOSAL OF SOLID WASTE</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>PAPER-MAKING</topic><topic>PERFORMING OPERATIONS</topic><topic>PRODUCTION OF CELLULOSE</topic><topic>PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS</topic><topic>RECLAMATION OF CONTAMINED SOIL SOIL</topic><topic>REGENERATION OF PULPING LIQUORS</topic><topic>TEXTILES</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>SEONG YOUNG NAM</creatorcontrib><creatorcontrib>CHUN SIK KIM</creatorcontrib><creatorcontrib>JI WHAN AHN</creatorcontrib><creatorcontrib>SEONGHO LEE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SEONG YOUNG NAM</au><au>CHUN SIK KIM</au><au>JI WHAN AHN</au><au>SEONGHO LEE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>IN-SITU PCC SEQUENTIAL IN-SITU PRECIPITATED CALCIUM CARBONATE PROCESSING METHOD FOR PREPARING HAND SHEETS WITH THE WASTE LIME MUD</title><date>2022-03-22</date><risdate>2022</risdate><abstract>An objective of the present invention is to provide a sequential in-situ precipitated calcium carbonate (PCC) processing method for manufacturing hand sheets with waste lime mud, which increases the whiteness of lime mud by calcination and hydration processes and increase papermaking brightness to manufacture hand sheets. To achieve this, the method comprises: a calcination step of calcining and converting lime mud into calcium oxide; a hydration step of hydrating and converting the calcined calcium oxide into calcium hydroxide; a homogenization step of adding the hydrated calcium hydroxide to a pulp slurry and homogenizing the mixture; an in situ carbonation step of supplying carbon dioxide (CO_2) to the homogenized mixture to convert the calcium hydroxide into calcium carbonate; and a hand sheet manufacturing step of manufacturing hand sheets from the mixture containing PCC and the pulp slurry.
본 발명의 목적은 하소 및 수화 공정에 의해 라임 머드의 백색도를 개선하고, 핸드 시트를 제조하기 위해 제지 명도를 개선하는 폐라임 머드로 핸드 시트를 제조하기 위한 다단계 공정 현장 IN-SITU PCC 처리 방법을 제공하는 것이다. 상기 목적을 달성하기 위해, 본 발명에 따른 폐라임 머드로 핸드 시트를 제조하기 위한 다단계 공정 현장 IN-SITU PCC 처리 방법은, 라임 머드를 하소하여 산화 칼슘으로 전환시키는 하소 단계; 하소된 상기 산화 칼슘을 수화하여 수산화 칼슘으로 전환시키는 수화 단계; 수화된 상기 수산화 칼슘을 펄프 슬러리에 첨가하고 균질화시키는 균질화 단계; 균질화된 혼합물에 이산화탄소(CO2)를 공급하여 상기 수산화 칼슘을 탄산 칼슘으로 전환시키는 현장 탄산화 단계; 및 침전된 상기 탄산 칼슘 및 상기 펄프 슬러리를 함유하는 혼합물로부터 핸드 시트를 제조하는 핸드 시트 제조 단계;를 포함하는 것을 특징으로 한다.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | APPARATUS THEREFOR CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS DISPOSAL OF SOLID WASTE INORGANIC CHEMISTRY METALLURGY PAPER-MAKING PERFORMING OPERATIONS PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS RECLAMATION OF CONTAMINED SOIL SOIL REGENERATION OF PULPING LIQUORS TEXTILES TRANSPORTING |
| title | IN-SITU PCC SEQUENTIAL IN-SITU PRECIPITATED CALCIUM CARBONATE PROCESSING METHOD FOR PREPARING HAND SHEETS WITH THE WASTE LIME MUD |
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