Lethathamo la tšebeliso le tšebeliso ea sodium hydroxide

Lethathamo la tšebeliso le tšebeliso ea sodium hydroxide

YANGZHOU EVERBRIGHT CHEMICAL CO.LTD.

Caustic soda tablet ke mofuta oa caustic soda, k'hemik'hale e bitsoang sodium hydroxide, ke alkali e qhibilihang, e senyang ka ho fetisisa, e ka sebelisoa e le acid neutralizer, e nang le masking agent, precipitating agent, precipitation masking agent, color agent, saponification agent, peeling agent, sesepa le tse ling

E feto-fetoha haholo.Tšebeliso e tloaelehileng ea matlapa a caustic soda e akaretsoa ka tsela e latelang:

1, ho etsa pampiri:

papermaking lihlahisoa tse tala ke lehong kapa joang limela, limela tsena ho phaella ho selulose, empa e boetse e na le palo e khōlō ea non-cellulose (lignin, marenene, joalo-joalo).Flake alkali e sebelisoa bakeng sa delignification, 'me fiber e ka fumanoa feela ka ho tlosa lignin ho tloha lehong.Karolo e seng ea cellulose e ka qhibiliha ka ho eketsa tharollo ea soda ea caustic, e le hore selulose e le karolo e ka sehloohong ea makhasi a ka lokisoa.

2, peterole e hloekisitsoeng:

Kamora hore lihlahisoa tsa peterole li hlatsuoe ka sulfuric acid, lintho tse ling tse nang le asiti li tlameha ho hlatsuoa ka tharollo ea alkali ea letlapa, ebe li hlatsuoa ho fumana lihlahisoa tse hloekisitsoeng.

3. Textile:

masela a k'hothone le a line a tšoaroa ka concentrated sodium hydroxide (caustic soda) tharollo ho ntlafatsa thepa ea fiber.Likhoele tsa maiketsetso tse kang k'hothone ea maiketsetso, boea ba maiketsetso, rayon, joalo-joalo, hangata ke likhoele tsa viscose, li entsoe ka selulose (joalo ka pulp), caustic soda, carbon disulfide (CS2) e le lisebelisoa tse tala, tse entsoeng ka viscose, ka ho ohla, condensation.

4, ho hatisa le ho daea:

k'hothone lesela le alkaline tharollo kalafo, ka tlosa koahetsoeng ka k'hothone lesela boka boka, grease, starch le lintho tse ling, ha a ntse a eketsa mercerization `mala oa lesela, e le hore daea ho feta junifomo.

5, ho etsa sesepa:

karolo e ka sehloohong ea sesepa ke letsoai la sodium la acid e tsoetseng pele ea mafura, hangata e entsoeng ka matlapa a oli le alkali e le lisebelisoa tse tala ka saponification reaction.Ntle le letsoai le nang le mafura a mangata, sesepa e boetse e na le rosin, khalase ea metsi, linoko, lidae le li-fillers tse ling.Ka sebopeho, mafura a mafura a sodium a phahameng a na le karolo e seng polar hydrophobic (sehlopha sa hydrocarbon) le karolo ea polar hydrophilic (sehlopha sa carboxyl).Sehlopha sa hydrophobic se na le thepa ea oleophilic.Nakong ea ho hlatsuoa, mafura a litšila a hlohlelletsoa ebe a qhalakanngoa ka marotholi a manyane a oli, 'me ka mor'a ho kopana le sesepa, sehlopha sa hydrophobic (sehlopha sa hydrocarbon) sa limolek'hule tsa sodium tse mafura li kenngoa ka har'a marotholi a oli,' me limolek'hule tsa oli lia kenngoa. e kopantsoeng ke mabotho a van der Waals.Sehlopha sa hydrophilic (sehlopha sa carboxyl), se qhibilihang habonolo metsing, se atolosoa ka ntle ho lerotholi la oli ebe se kenngoa ka metsing.Motsoako o ka sehloohong oa sesepa ke NaOH, empa NaOH ha se sesepa.Mokelikeli oa eona oa metsi o mafura 'me o ka sebelisoa e le sesepa.Sesepa ke emulsifier.Molao-motheo ke karabelo ea saponification CH3CO0CH2CH3+NaOH=CH3COONA+CH3CH2OH, 'me CH3COONA ke motsoako o sebetsang ka har'a sesepa.

6, indasteri ea lik'hemik'hale:

etsa tšepe ea sodium, metsi a electrolytic a lokela ho sebelisa matlapa a alkali.Tlhahiso ea matsoai a mangata a inorganic, haholo-holo ho lokisoa ha matsoai a mang a sodium (joalo ka borax, sodium silicate, sodium phosphate, sodium dichromate, sodium sulfite, joalo-joalo) li sebelisoa letlapeng la alkali.E boetse e sebelisoa ha ho etsoa li-dyes, lithethefatsi le li-intermediates tsa organic.

7, indasteri ea metallurgic:

hangata ho fetola karolo e sebetsang ea ore ka letsoai la sodium e qhibilihang, e le ho tlosa litšila tse sa tsitsang, ka hona, hangata ho hlokahala ho eketsa matlapa a alkali.Ka mohlala, ts'ebetsong ea ho qhibiliha ha aluminium, ho lokisoa ha cryolite le ho phekola bauxite ho sebelisoa.

8, tšebeliso ea lime ho ntlafatsa mobu:

mobung, hobane lintho tse phelang ka har'a ts'ebetso ea ho bola li tla hlahisa li-organic acid, boemo ba leholimo ba liminerale bo ka boela ba hlahisa lintho tse nang le asiti.Ho phaella moo, tšebeliso ea menontsha e sa tloaelehang e kang ammonium sulfate, ammonium chloride, joalo-joalo, e tla boela e etse hore mobu o be acidic.Ho sebelisa kalaka e lekaneng ho ka fokotsa asiti e mobung, ha etsa hore mobu o tšoanelehe bakeng sa kholo ea lijalo, le ho khothalletsa ho ata ha likokoana-hloko.Ka mor'a ho eketseha ha Ca2+ mobung, e ka khothaletsa condensation ea colloid ea mobu, e leng se loketseng ho thehoa ha lihlopha, 'me ka nako e ts'oanang, e ka fana ka calcin e hlokahalang bakeng sa kholo ea semela.

9. Tlhahiso ea Alumina :

Tharollo ea NaOH e futhumatsoa ho qhibiliha alumina ka bauxite le ho fumana alumini ea sodiume jele tharollo.Kamora hore tharollo e arohane le masala (seretse se sefubelu), mocheso o theoleloa, aluminium hydroxide e eketsoa joalo ka peo ea kristale, kamora nako e telele ea ho sisinyeha, aluminate ea sodium e tšeloa ka aluminium hydroxide, e hlatsuoe, ebe e calcined ho 950 ~ 1200 ℃ , aluminium oxide e felile e fumanoa.Tharollo ka mor'a hore ho be le pula ea aluminium hydroxide e bitsoa joala ba 'mè, bo fetohang mouoane le ho tsepamisa mohopolo le ho tsosolosoa hape.Ka lebaka la mekhoa e fapaneng ea kristale ea diaspore, diaspore le diaspore, ho qhibiliha ha bona ka tharollo ea caustic soda ho fapane haholo, kahoo hoa hlokahala ho fana ka maemo a fapaneng a ho qhibiliha, haholo-holo mocheso o fapaneng oa ho qhibiliha.Mofuta oa bauxite oa diaspore o ka qhibiliha ka 125 ~ 140C, 'me mofuta oa diaspore oa bauxite o ka qhibiliha ho 240 ~ 260 ℃ le ho eketsoa kalaka (3~7%).

10, lirafshoa:

soda ea caustic karolong ea tlhahiso ea ceramic e na le lintlha tse peli: ea pele, ts'ebetsong ea ho chesa lirafshoa, caustic soda e le diluent.Ntlha ea bobeli, bokaholimo ba ceramic bo chesitsoeng bo tla be bo ts'oaroa kapa bo le thata haholo, 'me ka mor'a ho hloekisa ka tharollo ea soda le caustic, bokaholimo ba ceramic bo tla ba boreleli.

11, ho bolaea likokoana-hloko:

tšoaetso ea protheine ea vaerase.Tsena li sebelisoa haholo ho hloekisa le ho bolaea libotlolo indastering ea veine.

12, ntle le metsi a litšila:

oxide e matla ea sodium ho fetola boleng ba ph, kalafo ea likhoerekhoere, e le hore lisebelisoa li boele li sebelisoe.

13, litokisetso tsa lik'hemik'hale, li-additives tsa indasteri:

Letlapa alkali e haholo-holo sebelisoa ka indasteri ea meriana ho alkalize ditharollo kapa ho fetola pH boleng ba tharollo ea meriana.

14, electroplating, ho hloekisa tungsten.:

Matlapa a alkali a plating ea tšepe e le tharollo ea electroplating, bapala karolo ea conductor!

15, etsa silika, etsa k'hothone ea rayon.

16. Indasteri ea letlalo (Selelekela sa tšebeliso e 'meli ea matlapa a alkali):

(1) Bakeng sa ts'ebetso ea ts'ebetso ea ts'ebetso ea mokelikeli oa litšila tsa letlalo, inela 'me u kenye tharollo ea metsi a sodium sulfide ts'ebetsong e teng ea katoloso.

Pakeng tsa mehato e 'meli ea phekolo ea ho noa phofo ea lime, tšebeliso ea 30% ea tharollo ea sodium hydroxide e nang le boima ba tare 0.3-0.5% e eketsoa ho etsa hore fiber ea letlalo e atolosoe ka botlalo ho finyella litlhoko tsa ts'ebetso le ho ntlafatsa boleng ba lihlahisoa tse felileng.
(2) Joaloka setsi sa alkaline le neutralizer, eketsa palo ea metsi ho reactor, 'me u futhumale ho fihlela ho 90 ° C ka mouoane, hlohlelletsa ha u ntse u eketsa joala ea polyvinyl, ebe u pholile ho fihlela ho 80 ° C ka mor'a hore joala ba polyvinyl bo be teng. qhadile ka botlalo.Ka mor'a ho hlohlelletsa, eketsa hydrochloric acid ka mokhoa o fokolang, tsoela pele ho sisinya metsotso e 20 ho isa ho e 30, 'me u kenye foromo ea metsi a formaldehyde.E boloke e futhumetse ho 78 ~ 80 ℃, e lumelle ho itšoara ka metsotso e 40 ~ 50, eketsa tharollo e hlophisitsoeng ea 10% ea sodium hydroxide bakeng sa ho se nke lehlakore, e pholisoe ho 60 ~ 70 ℃, ebe u eketsa foromo ea urea bakeng sa phekolo ea amino, le sefa. tharollo ea sekhomaretsi ka letlooa la khoele bakeng sa tšebeliso ea polokelo.

17, indasteri ea lik'hemik'hale ea polyester:

e sebelisetsoa ho etsa formic acid, oxalic acid, borax, phenol, sodium cyanide le sesepa, mafura a maiketsetso, sesepa sa maiketsetso, joalo-joalo.

18, indasteri ea khatiso ea masela le ho daea:

e sebelisoa e le k'hothone desizing agent, beling agent, mercerizing agent le dae e fokotsang, Haichang blue dye solvent.

19, indasteri ea ho qhibilihisa:

e sebelisetsoang ho etsa aluminium hydroxide, aluminium oxide le setsi sa kalafo sa tšepe holim'a tšepe.

20, indasteri ea lisebelisoa,:

e sebelisoa e le acid neutralizer, decolorizing agent, deodoizing agent.

21, indasteri ea likhomaretsi:

e sebelisoa e le gelatinizer ea starch, neutralizer.

22, etsa phosphate, etsa manganate.

23. Ho tsosolosoa ha rabara ea khale.

24, e ka sebelisoa e le lamunu, morekisi ea peeling ea perekisi le decolorizing, deodorant.

25, alkali ea letlapa e boetse e sebelisoa ho etsa chefo e bolaeang likokoanyana.