Ntchito zosiyanasiyana ndi kugwiritsa ntchito sodium hydroxide

Ntchito zosiyanasiyana ndi kugwiritsa ntchito sodium hydroxide

Malingaliro a kampani YANGZHOU EVERBRIGHT CHEMICAL CO.LTD.

Caustic koloko piritsi ndi mtundu wa caustic koloko, mankhwala dzina sodium hydroxide, ndi sungunuka zamchere, zowononga kwambiri, angagwiritsidwe ntchito ngati asidi neutralizer, ndi masking wothandizira, mpweya wothandizila mpweya masking wothandizila, mtundu wothandizila, saponification wothandizira, peeling wothandizira, detergent ndi zina zotero

Zosinthasintha kwambiri.Kugwiritsa ntchito pafupipafupi kwa mapiritsi a caustic soda kumafupikitsidwa motere:

1, kupanga mapepala:

papermaking zipangizo ndi matabwa kapena udzu zomera, zomera izi kuwonjezera mapadi, komanso muli ndithu kuchuluka kwa sanali mapadi (lignin, chingamu, etc.).Flake alkali imagwiritsidwa ntchito pokongoletsa, ndipo ulusi ukhoza kupezeka pochotsa lignin pamitengo.Chigawo chosakhala cha cellulose chikhoza kusungunuka powonjezera njira yothetsera soda, kotero kuti cellulose monga chigawo chachikulu cha zamkati akhoza kukonzekera.

2, mafuta oyeretsedwa:

Mafuta amafuta akatsukidwa ndi sulfuric acid, zinthu zina za acidic ziyenera kutsukidwa ndi njira ya alkali ya piritsi, kenako kutsukidwa kuti mupeze zoyenga.

3. Zovala:

Nsalu za thonje ndi bafuta zimathandizidwa ndi yankho la sodium hydroxide (caustic soda) kuti lipititse patsogolo ulusi.Ulusi wopanga monga thonje wochita kupanga, ubweya wonyezimira, rayon, etc., nthawi zambiri zimakhala ulusi wa viscose, wopangidwa ndi mapadi (monga zamkati), caustic soda, carbon disulfide (CS2) ngati zopangira, zopangidwa ndi viscose, popota, condensation.

4, kusindikiza ndi utoto:

thonje nsalu mankhwala mankhwala amchere, akhoza kuchotsa yokutidwa thonje nsalu sera, mafuta, wowuma ndi zinthu zina, pamene kuwonjezera mercerization mtundu wa nsalu, kuti utoto kwambiri yunifolomu.

5, kupanga sopo:

chigawo chachikulu cha sopo ndi mchere wa sodium wa mafuta acids apamwamba, omwe nthawi zambiri amapangidwa ndi mapiritsi amafuta ndi alkali monga zopangira pogwiritsa ntchito saponification reaction.Kuphatikiza pa mchere wambiri wamafuta acid, sopo imakhalanso ndi rosin, galasi lamadzi, zonunkhira, utoto ndi zodzaza zina.Mwachilengedwe, mafuta ochulukirapo a sodium ali ndi gawo losakhala polar hydrophobic (gulu la hydrocarbon) ndi gawo la polar hydrophilic (gulu la carboxyl).Gulu la hydrophobic lili ndi oleophilic properties.Pakutsuka, mafuta mu dothi amagwedezeka ndikumwaza m'madontho ang'onoang'ono amafuta, ndipo atatha kukhudzana ndi sopo, gulu la hydrophobic (gulu la hydrocarbon) la mamolekyu apamwamba amafuta a sodium amalowetsedwa m'malovu amafuta, ndipo mamolekyu amafuta amapangidwa. omangidwa pamodzi ndi magulu ankhondo a van der Waals.Gulu la hydrophilic (gulu la carboxyl), lomwe limasungunuka mosavuta m'madzi, limatambasulidwa kunja kwa dontho la mafuta ndikulowetsedwa m'madzi.Chofunikira chachikulu cha sopo ndi NaOH, koma NaOH si sopo.Njira yake yamadzimadzi imakhala yamafuta ndipo imatha kugwiritsidwa ntchito ngati sopo.Sopo ndi emulsifier.Mfundo yake ndi momwe saponification reaction CH3CO0CH2CH3+NaOH=CH3COONA+CH3CH2OH, ndipo CH3COONa ndiye chogwiritsidwa ntchito mu sopo.

6, makampani opanga mankhwala:

kupanga zitsulo sodium, electrolytic madzi ndi ntchito mapiritsi a alkali.Kupanga mchere wambiri, makamaka wokonza mchere wina wa sodium (monga borax, sodium silicate, sodium phosphate, sodium dichromate, sodium sulfite, etc.) amagwiritsidwa ntchito papiritsi zamchere.Amagwiritsidwanso ntchito mu synthesis wa utoto, mankhwala ndi organic intermediates.

7, mafakitale azitsulo:

nthawi zambiri kusintha yogwira chigawo cha ore mu sungunuka sodium mchere, kuti achotse zosafunika insoluble, Choncho, nthawi zambiri ayenera kuwonjezera mapiritsi alkali.Mwachitsanzo, pakusungunula kwa aluminiyamu, kukonzekera kwa cryolite ndi mankhwala a bauxite amagwiritsidwa ntchito.

8, kugwiritsa ntchito laimu kukonza nthaka:

m'nthaka, chifukwa organic zinthu mu kuvunda ndondomeko adzatulutsa organic zidulo, weathering wa mchere kungachititsenso acidic zinthu.Kuphatikiza apo, kugwiritsa ntchito feteleza wachilengedwe monga ammonium sulfate, ammonium chloride, etc., kumapangitsanso nthaka kukhala acidic.Kuthira laimu wochuluka kungathe kufooketsa asidi m’nthaka, kupangitsa nthaka kukhala yoyenera kumera, ndi kulimbikitsa kufalikira kwa tizilombo toyambitsa matenda.Pambuyo pakuwonjezeka kwa Ca2 + m'nthaka, imatha kulimbikitsa kukhazikika kwa colloid ya nthaka, yomwe imathandizira kupanga magulu, ndipo panthawi imodzimodziyo, ikhoza kupereka calcin yofunikira pakukula kwa zomera.

9. Kupanga kwa aluminiyamu:

Njira ya NaOH imatenthedwa kuti isungunuke alumina mu bauxite ndikupeza aluminiyamu ya sodiumanadya solution.Njirayi ikasiyanitsidwa ndi zotsalira (matope ofiira), kutentha kumatsitsidwa, aluminium hydroxide imawonjezeredwa ngati njere ya kristalo, pakapita nthawi yayitali, aluminiyamu ya sodium imawonongeka kukhala aluminium hydroxide, kutsukidwa, ndi calcined pa 950 ~ 1200 ℃ , aluminium oxide yomalizidwa imapezedwa.Njira yothetsera mvula ya aluminiyamu hydroxide imatchedwa mowa wa amayi, womwe umatuluka nthunzi ndikukhazikika ndikusinthidwanso.Chifukwa cha mapangidwe osiyanasiyana a crystalline a diaspore, diaspore ndi diaspore, kusungunuka kwawo mu caustic soda solution ndi kosiyana kwambiri, kotero ndikofunikira kupereka zinthu zosiyanasiyana zowonongeka, makamaka kutentha kosiyana.The diaspore mtundu bauxite akhoza kusungunuka pa 125 ~ 140C, ndi diaspore mtundu bauxite akhoza kusungunuka pa 240 ~ 260 ℃ ndi Kuwonjezera laimu (3 ~ 7%).

10, zoumba:

Soda wa caustic mu gawo lopangira ceramic ali ndi mfundo ziwiri: choyamba, powombera zida zadothi, koloko wa caustic ngati chotsitsa.Chachiwiri, pamwamba pa ceramic yoyaka moto idzakhala yowonongeka kapena yovuta kwambiri, ndipo mutatha kuyeretsa ndi yankho la caustic soda, pamwamba pa ceramic idzakhala yosalala.

11, disinfection:

kuwonongeka kwa protein protein.Izi zimagwiritsidwa ntchito makamaka pakutsuka ndi kupha tizilombo m'mabotolo ogulitsa vinyo.

12, kuwonjezera pa madzi oipa:

amphamvu sodium okusayidi kusintha ph mtengo, zimbudzi mankhwala, kuti chuma yobwezeretsanso.

13, kukonzekera mankhwala, zina mafakitale:

Piritsi zamchere zimagwiritsidwa ntchito kwambiri m'makampani opanga mankhwala kuti azisungunula kapena kusintha pH yamankhwala.

14, electroplating, tungsten kuyenga.:

Mapiritsi a alkali muzitsulo zachitsulo monga njira yothetsera electroplating, sewerani gawo la conductor!

15, kupanga silika, kupanga rayon thonje.

16. Makampani a zikopa (Mawu oyamba a ntchito ziwiri za mapiritsi a alkali):

(1) Pakuti yobwezeretsanso ndondomeko ya zikopa zinyalala phulusa madzi, zilowerere ndi kuwonjezera sodium sulfide amadzimadzi njira alipo Kukula ndondomeko.

Pakati pa masitepe awiri a laimu ufa akuwukha mankhwala, ntchito 30% sodium hydroxide njira ndi tare kulemera 0.3-0.5% ndi kuchuluka kuti khungu CHIKWANGWANI mokwanira kukodzedwa kukwaniritsa ndondomeko zofunika ndi kusintha khalidwe la theka-anamaliza mankhwala.
(2) Monga sing'anga yamchere ndi neutralizer, onjezerani kuchuluka kwa madzi ku riyakitala, ndiyeno kutentha mpaka 90 ° C kupyolera mu nthunzi, chipwirikiti ndikuwonjezera mowa wa polyvinyl, kenako kuziziritsa mpaka 80 ° C pambuyo pa mowa wa polyvinyl. kwathunthu kusungunuka.Mukayambitsa, onjezerani hydrochloric acid mumphindi, pitirizani kusonkhezera kwa mphindi 20 mpaka 30, ndikuwonjezera madzi a formaldehyde.Pitirizani kutentha pa 78 ~ 80 ℃, lolani kuti lichitepo kwa mphindi 40 ~ 50, onjezerani kukhazikitsidwa kwa 10% sodium hydroxide yankho la neutralization, kuziziziritsa mpaka 60 ~ 70 ℃, kenaka yikani formula urea mankhwala amino, ndi fyuluta. njira ya glue kudzera mu ukonde wa ulusi kuti mugwiritse ntchito posungira.

17, makampani opanga mankhwala a polyester:

amagwiritsidwa ntchito popanga formic acid, oxalic acid, borax, phenol, sodium cyanide ndi sopo, mafuta acids opangira, zotsukira zopangira, etc.

18, mafakitale osindikizira nsalu ndi utoto:

amagwiritsidwa ntchito ngati thonje desizing wothandizira, wowiritsa, mercerizing wothandizira ndi kuchepetsa utoto, Haichang blue utoto zosungunulira.

19, makampani osungunula:

amagwiritsidwa ntchito popanga aluminium hydroxide, aluminiyamu okusayidi ndi zitsulo zopangira mankhwala.

20, makampani zida,:

amagwiritsidwa ntchito ngati asidi neutralizer, decolorizing wothandizira, deodorizing wothandizira.

21, makampani zomatira:

amagwiritsidwa ntchito ngati wowuma gelatinizer, neutralizer.

22, kupanga phosphate, kupanga manganeti.

23. Kubadwanso kwa mphira wakale.

24, angagwiritsidwe ntchito ngati citrus, pichesi peeling wothandizira ndi decolorizing wothandizira, deodorant.

25, alkali ya piritsi imagwiritsidwanso ntchito popanga mankhwala ophera tizilombo.