Soda ea Caustic e ka aroloa ka flake soda, granular soda le soda e tiileng ho latela sebopeho sa eona. Tšebeliso ea soda ea caustic e kenyelletsa likarolo tse ngata, tse latelang ke kenyelletso e qaqileng bakeng sa hau:
1. Peteroleum e hloekisitsoeng.
Kamora ho hlatsuoa ka sulfuric acid, lihlahisoa tsa petroleum li ntse li e-na le lintho tse nang le asiti, tse lokelang ho hlatsuoa ka sodium hydroxide solution ebe li hlatsuoa ka metsi ho fumana lihlahisoa tse hloekisitsoeng.
2.ho hatisa le ho daea
E sebelisoa haholo lidae tsa indigo le lidae tsa quinone. Ts'ebetsong ea ho daea ea lidae tsa vat, tharollo ea caustic soda le sodium hydrosulfite e lokela ho sebelisoa ho li fokotsa ho leuco acid, ebe e kenngoa ka oxidized ho boemo ba pele bo sa tsitsang ka li-oxidants ka mor'a ho daea.
Ka mor'a hore lesela la k'hothone le phekoloe ka tharollo ea soda ea caustic, boka ba boka, mafura, starch le lintho tse ling tse koahetsoeng ka lesela la k'hothone li ka tlosoa, 'me ka nako e ts'oanang, khanya ea mercerized ea lesela e ka eketsoa ho etsa hore ho dae ho be le mokhoa o tšoanang. .
3. Fiber ea masela
1).Seaparo
Masela a k'hothone le a line a phekoloa ka tharollo ea concentrated sodium hydroxide (caustic soda) ho ntlafatsa thepa ea fiber. Likhoele tse entsoeng ke motho tse kang rayon, rayon, rayon, joalo-joalo, hangata ke likhoele tsa viscose. Li entsoe ka cellulose (joalo ka pulp), sodium hydroxide, le carbon disulfide (CS2) e le lisebelisoa tse tala ho etsa mokelikeli oa viscose, o fafatsoang, o entsoeng ka condensation.
2). Fiber ea viscose
Pele, sebelisa 18-20% caustic soda tharollo ho impregnate selulose ho etsa hore e be alkali selulose, ka nako eo omisa le silakanya alkali selulose, eketsa carbon disulfide, 'me qetellong qhala sulfonate le hlapolla lye ho fumana viscose . Ka mor'a ho sefa le ho hloekisa (ho tlosa li-bubble tsa moea), e ka sebelisoa bakeng sa ho ohla.
4. Ho etsa pampiri
Lisebelisoa tse tala bakeng sa ho etsa pampiri ke limela tsa lehong kapa joang, tse nang le palo e ngata ea li-non-cellulose (lignin, gum, joalo-joalo) ho phaella ho selulose. Sodium hydroxide e sebelisoa bakeng sa delignification, 'me feela ha lignin ka lehong e tlosoa moo likhoele li ka fumanoang. Likarolo tse se nang cellulose li ka qhibiliha 'me tsa aroloa ka ho eketsa tharollo ea sodium hydroxide e hlapollang, e le hore makhasi a nang le selulose e le karolo ea mantlha a ka fumanoa.
5. Ntlafatsa mobu ka kalaka.
Mobung, boemo ba leholimo ba liminerale bo ka boela ba hlahisa li-acids ka lebaka la ho thehoa ha organic acid ha lintho tse phelang li senyeha. Ho feta moo, ts'ebeliso ea menontsha ea inorganic joalo ka ammonium sulfate le ammonium chloride le eona e tla etsa hore mobu o be acidic. Ho sebelisa kalaka e lekaneng ho ka fokotsa lintho tse nang le asiti mobung, ho etsa hore mobu o tšoanelehe bakeng sa kholo ea lijalo le ho khothalletsa ho ikatisa ha likokoana-hloko. Keketseho ea Ca2+ mobung e ka khothalletsa ho kopana ha li-colloids tsa mobu, e leng se loketseng ho thehoa ha lihlopha, 'me ka nako e tšoanang e ka fana ka calcium e hlokahalang bakeng sa kholo ea limela.
6. Indasteri ea lik'hemik'hale le li-reagents tsa lik'hemik'hale.
Ka indasteri ea lik'hemik'hale, caustic soda e sebelisoa bakeng sa ho etsa tšepe ea sodium le metsi a electrolyzing. Caustic soda kapa soda molora e sebelisoa tlhahiso ea matsoai a mangata a inorganic, haholo-holo ha ho etsoa matsoai a mang a sodium (joaloka borax, sodium silicate, sodium phosphate, sodium dichromate, sodium sulfite, joalo-joalo). Soda ea Caustic kapa soda ash e boetse e sebelisoa ha ho etsoa lidae, lithethefatsi le li-intermediates tsa manyolo.
7. rabara, letlalo
1). Silika e omileng
Ntlha ea pele: etsa khalase ea metsi (Na2O.mSO2) ka ho arabela sodium hydroxide ka ore ea quartz (SiO2)
Ea bobeli: etsa khalase ea metsi e nang le sulfuric acid, hydrochloric acid, le carbon dioxide ho hlahisa carbon dioxide e tšoeu (silicon dioxide)
Silika e boletsoeng mona ke eona e matlafatsang ka ho fetisisa bakeng sa rabara ea tlhaho le rabara ea maiketsetso
2). Ho tsosolosa rabara ea khale
Ha ho sebelisoa rabara ea khale, phofo ea rabara e tšeloa pele ka tharollo ea sodium hydroxide, ebe e sebetsoa.
3). Letlalo
Tannery: ts'ebetso ea ts'ebetso ea ts'ebetso ea ts'ebetso ea mokelikeli oa litšila tsa letlalo, ka lehlakoreng le leng, lipakeng tsa mehato e 'meli ea tharollo ea metsi a sodium sulfide le ho eketsa kalafo ea lime ea phofo molemong oa katoloso e teng, ts'ebeliso ea boima ba tare e eketseha ka 0.3-0.5. % Mohato oa kalafo oa 30% oa sodium hydroxide o etsa hore fiber ea letlalo e atolohe ka botlalo, e fihlelle litlhoko tsa ts'ebetso, 'me e ntlafatse boleng ba sehlahisoa se felileng.
8. metallurgy, electroplating
Ka indasteri ea metallurgical, hangata hoa hlokahala ho fetola metsoako e sebetsang ka har'a ore hore e be letsoai la sodium e qhibilihang e le ho tlosa litšila tse sa tsitsang. Ka hona, hangata hoa hlokahala ho eketsa molora oa soda (e boetse e le phallo), 'me ka linako tse ling ho sebelisoa soda le ho feta.
9.likarolo tse ling tsa karolo
1). Ho na le mesebetsi e 'meli ea ceramic caustic soda ha ho etsoa lirafshoa. Ntlha ea pele, soda e entsoeng ka caustic e sebelisoa e le ntho e hlapollang ts'ebetsong ea ho chesa lirafshoa. Ea bobeli, bokaholimo ba li-ceramics tse chesitsoeng bo tla be bo hlajoa kapa bo be thata haholo. E hloekise ka tharollo ea soda ea caustic Qetellong, etsa hore bokaholimo ba ceramic bo be boreleli haholoanyane.
2). Ka indasteri ea lisebelisoa, e sebelisoa e le acid neutralizer, decolorizer le deodorizer. Indasteri ea likhomaretsi e sebelisoa e le gelatinizer ea starch le neutralizer. E ka sebelisoa e le moemeli oa peeling, decolorizing agent le deodorant agent ea citrus, perekisi, joalo-joalo.
Nako ea poso: Feb-16-2023