Quicklime yog cov khoom siv feem ntau siv los tshem tawm cov dej vapor siv tshuaj nqus dej. Nws kuj tseem siv rau hauv cov hlau, tshuaj tua kab, tshuaj, tshuaj desiccant, tawv, thiab cawv dehydration industries. Nws yog tshwj xeeb tshaj yog haum rau cov khoom nyob rau hauv puffed zaub mov, shiitake nceb, ntoo pob ntseg nceb, thiab lwm yam hauv zos specialties, raws li zoo raws li cov khoom nyob rau hauv lub instrumentation, kws, khaub ncaws, electronics thiab telecommunications, tawv, thiab textile industries.
Txiv qaub thiab limestone yog dav siv los ua cov khoom siv hauv tsev thiab tseem yog cov ntaub ntawv tseem ceeb rau ntau qhov kev lag luam. Limestone tuaj yeem ua tiav ncaj qha rau hauv pob zeb los yog hlawv rau hauv quicklime. Txiv qaub muaj nyob rau hauv ob hom: quicklime thiab slaked txiv qaub. Lub ntsiab tseem ceeb ntawm quicklime yog CaO. Nws yog feem ntau nyob rau hauv lumps; ntshiab quicklime yog dawb, thaum quicklime muaj impurities yog lub teeb grey los yog lub teeb daj. Quicklime absorbs noo noo los yog slaked txiv qaub thaum dej ntxiv. Slaked txiv qaub, tseem hu ua hydrated txiv qaub, muaj Ca (OH) 2 ua nws cov khoom tseem ceeb. Slaked txiv qaub yog tov rau hauv txiv qaub slurry, txiv qaub paste, txiv qaub mortar, thiab lwm yam, thiab siv los ua cov khoom siv txheej thiab cib / pobzeb nplaum. Soda tshauv yog tsim los ntawm limestone, ntsev, ammonia, thiab lwm yam raw cov ntaub ntawv los ntawm ib tug multi{10}} cov txheej txheem tshuaj tiv thaiv kab mob (Solvay txheej txheem). Caustic soda yog tsim los ntawm reacting slaked txiv qaub thiab soda tshauv (causticization txheej txheem). Muaj tag nrho ntawm 1,286 mineral deposits, suav nrog 257 loj deposits, 481 nruab nrab- deposits loj, thiab 486 me deposits (loj deposits muaj ore reserves ntau tshaj 80 lab tons, nruab nrab deposits muaj 40-80 lab tons, thiab me deposits muaj tsawg tshaj li 40 lab tons), nrog rau ib tug tag nrho cov ntaub ntawv pov thawj. yog 50.4 billion tons, accounting rau 93%, thiab marble reserves yog 3.8 billion tons, accounting rau 7%. Cov reserves ntawm quicklime yog dav faib nyob rau hauv 29 lub xeev, lub nroog, thiab autonomous cheeb tsam, tsis suav nrog Shanghai. Shaanxi Province boasts qhov loj tshaj plaws reserves ntawm 4.9 billion tons, ua raws li Anhui xeev, Guangxi Zhuang Autonomous Region, thiab Sichuan Province (xws li Chongqing nroog), txhua tus muaj reserves ntawm 3.4-3 billion tons. Shandong, Hebei, Henan, Guangdong, Liaoning, Hunan, thiab Hubei xeev txhua tus tuav 3-2 billion tons. Heilongjiang, Zhejiang, Jiangsu, Guizhou, Jiangxi, Yunnan, Fujian, Shanxi, Xinjiang, Jilin, Inner Mongolia, Qinghai, thiab Gansu xeev txhua tus tuav 2-1 billion tons. Beijing, Ningxia, Hainan, Tibet, thiab Tianjin xeev txhua tus tuav 200-500 lab tons.
Kev kho mob ceev ceev hauv cov dej khib nyiab tau dhau los ua qhov teeb meem loj txog kev sib haum xeeb ntawm kev lag luam thiab tib neeg. Lub xeev tau txais kev ntsuas nruj los tswj kev loj hlob ntawm kev lag luam muaj kuab paug emissions, nce kev kho mob thiab txhim kho kev siv zog hauv papermaking, brewing, chemical, thiab printing thiab dyeing industries, thiab tshem tawm cov txheej txheem dhau los thiab cov khoom siv uas siv dej ntau thiab ua rau muaj kuab paug hnyav. Raws li kuv lub teb chaws kev lag luam thiab kev tsim kho hauv nroog txuas ntxiv mus, kev tso dej pov tseg los ntawm kev lag luam ceev thiab cov dej phwj hauv nroog tau nce zuj zus txhua xyoo. Cov kev tso tawm tsis zoo tau ua rau muaj kev ntxhov siab loj thiab ua rau muaj kev puas tsuaj rau ib puag ncig. Quicklime yog siv rau hauv kev lag luam tseem ceeb xws li hlau, fais fab, tshuaj, thiab thee los txhawb kev rov ua dua dej khib nyiab thiab txhim kho tus nqi rov siv dua ntawm cov dej ua haujlwm. Nyob rau tib lub sijhawm, cov txheej txheem thiab thev naus laus zis los kho cov dej khib nyiab los ntawm kev lag luam quicklime tau txhim kho tas li, uas tseem nthuav tawm cov kev xav tau tshiab rau quicklime -raws li flocculants siv hauv kev kho dej.
