Yanayin aikace-aikace da amfani da sodium hydroxide

Yanayin aikace-aikace da amfani da sodium hydroxide

Abubuwan da aka bayar na YANGZHOU EVERBRIGHT CHEMICAL CO. LTD.

Caustic soda kwamfutar hannu wani irin caustic soda, sinadaran sunan sodium hydroxide, shi ne mai soluble alkali, musamman lalata, za a iya amfani da matsayin acid neutralizer, tare da masking wakili, precipitating wakili, hazo masking wakili, launi wakili, saponification wakili, peeling wakili, wanka da sauransu

M sosai.An taƙaita yawan amfani da allunan caustic soda kamar haka:

1, yin takarda:

kayan da ake yin takarda su ne itace ko ciyayi, waɗannan tsire-tsire ban da cellulose, amma kuma sun ƙunshi adadi mai yawa na waɗanda ba cellulose ba (lignin, danko, da sauransu).Ana amfani da flake alkali don lalata, kuma za'a iya samun fiber ta hanyar cire lignin daga itace.Za'a iya narkar da bangaren da ba na cellulose ba ta hanyar ƙara bayani na caustic soda, ta yadda za a iya shirya cellulose a matsayin babban ɓangaren ɓangaren litattafan almara.

2, tace mai:

Bayan an wanke kayan man fetur da sulfuric acid, dole ne a wanke wasu abubuwa masu acidic tare da maganin alkali na kwamfutar hannu, sannan a wanke don samun samfurori masu ladabi.

3. Yadi:

Ana kula da yadudduka na lilin tare da maida hankali sodium hydroxide (caustic soda) bayani don inganta abubuwan fiber.Zaɓuɓɓuka na wucin gadi irin su auduga na wucin gadi, ulu na wucin gadi, rayon, da dai sauransu, yawancin zaruruwan viscose ne, an yi su ne da cellulose (kamar ɓangaren litattafan almara), soda caustic, carbon disulfide (CS2) azaman albarkatun ƙasa, wanda aka yi da viscose, ta hanyar juyawa, kumburi.

4, bugu da rini:

auduga masana'anta da alkaline bayani magani, iya cire rufe a auduga masana'anta kakin zuma, man shafawa, sitaci da sauran abubuwa, yayin da kara mercerization launi na masana'anta, sabõda haka, dyeing more uniform.

5, yin sabulu:

Babban bangaren sabulu shine gishirin sodium na ci-gaban fatty acid, yawanci ana yin shi da mai da allunan alkali azaman albarkatun ƙasa ta hanyar saponification.Baya ga gishiri mai kitse mai kitse, sabulun kuma yana dauke da rosin, gilashin ruwa, kayan kamshi, rini da sauran abubuwan da suka dace.A tsari, sodium fatty acid mafi girma yana ƙunshe da ɓangaren hydrophobic mara iyaka (ƙungiyar hydrocarbon) da ɓangaren hydrophilic na polar (kungiyar carboxyl).Ƙungiyar hydrophobic tana da kaddarorin oleophilic.A lokacin wanke-wanke, man da ke cikin datti yana motsawa kuma a watsa shi cikin ƙananan ɗigon mai, kuma bayan an haɗa shi da sabulu, ƙungiyar hydrophobic (hydrocarbon group) na mafi girman fatty acid sodium molecules a cikin ɗigon mai, kuma kwayoyin mai suna sojojin van der Waals sun daure tare.Ƙungiyar hydrophilic (ƙungiyar carboxyl), wanda ke narkewa cikin sauƙi a cikin ruwa, an shimfiɗa shi a waje da digon mai kuma a saka shi cikin ruwa.Babban sinadarin sabulu shine NaOH, amma NaOH ba sabulu bane.Maganin ruwan sa yana da maiko kuma ana iya amfani dashi azaman sabulu.Sabulu shine emulsifier.Ka'idar ita ce amsawar saponification CH3CO0CH2CH3+NaOH=CH3COONa+CH3CH2OH, kuma CH3COONa shine sinadari mai aiki a cikin sabulu.

6, masana'antar sinadarai:

yi karfe sodium, electrolytic ruwa ne don amfani da Allunan alkali.Samar da yawancin gishirin inorganic, musamman shirye-shiryen wasu gishirin sodium (irin su borax, sodium silicate, sodium phosphate, sodium dichromate, sodium sulfite, da sauransu) ana amfani da su a cikin alkali na kwamfutar hannu.Har ila yau, ana amfani da shi a cikin kira na dyes, kwayoyi da tsaka-tsakin kwayoyin halitta.

7, masana'antar ƙarfe:

sau da yawa don canza sashin aiki na ma'adinai zuwa gishiri mai soyayyen sodium, don cire ƙazantattun abubuwan da ba za a iya narkewa ba, don haka, sau da yawa suna buƙatar ƙara allunan alkali.Alal misali, a cikin tsarin narkewar aluminum, ana amfani da shirye-shiryen cryolite da maganin bauxite.

8, amfani da lemun tsami don inganta ƙasa:

a cikin ƙasa, saboda kwayoyin halitta a cikin tsarin rushewa zai samar da kwayoyin acid, yanayin yanayi na ma'adanai na iya haifar da abubuwa na acidic.Bugu da kari, yin amfani da takin zamani irin su ammonium sulfate, ammonium chloride da sauransu, shi ma zai sa kasar ta zama acidic.Yin amfani da lemun tsami daidai yana iya kawar da acid ɗin da ke cikin ƙasa, sa ƙasa ta dace da haɓakar amfanin gona, da haɓaka yaduwar ƙwayoyin cuta.Bayan haɓakar Ca2 + a cikin ƙasa, yana iya haɓaka haɓakar ƙwayar ƙasa colloid, wanda ke haifar da haɓakar aggregates, kuma a lokaci guda, yana iya samar da calcin da ake buƙata don ci gaban shuka.

9. Alumina samar:

Maganin NaOH yana zafi don narkar da alumina a cikin bauxite kuma ya sami sodium aluminci bayani.Bayan an raba maganin daga ragowar (laka mai ja), ana saukar da zafin jiki, ana ƙara aluminum hydroxide azaman iri na crystal, bayan dogon lokaci na motsawa, sodium aluminate yana bazu cikin aluminum hydroxide, wanke, da calcined a 950 ~ 1200 ℃. , Ƙarshen aluminum oxide yana samuwa.Maganin bayan hazo na aluminium hydroxide ana kiransa giya uwar, wanda aka ƙafe kuma a maida hankali kuma a sake yin fa'ida.Saboda daban-daban crystalline tsarin na diaspore, diaspore da diaspore, su solubility a caustic soda bayani ne sosai daban-daban, don haka wajibi ne a samar da daban-daban narkar da yanayi, yafi daban-daban narkar da yanayin zafi.Za a iya narkar da nau'in diaspore bauxite a 125 ~ 140C, kuma nau'in diaspore bauxite za a iya narkar da shi a 240 ~ 260 ℃ da ƙari na lemun tsami (3 ~ 7%).

10, yumbu:

caustic soda a cikin aikin masana'anta yumbu yana da maki biyu: na farko, a cikin aikin harbe-harbe na yumbu, soda caustic a matsayin diluent.Na biyu, farfajiyar yumbun da aka kora za a yi tagulla ko kuma mai tsanani sosai, kuma bayan tsaftacewa tare da maganin soda na caustic, farfajiyar yumbura zai zama mai laushi.

11, maganin kashe kwayoyin cuta:

denaturation na furotin na kwayar cutar.Ana amfani da waɗannan galibi don tsaftacewa da tsabtace kwalabe a cikin masana'antar giya.

12, ban da sharar ruwa:

sodium oxide mai ƙarfi don daidaita ƙimar ph, kula da najasa, don sake amfani da albarkatun.

13, sinadaran shirye-shirye, masana'antu Additives:

Allunan alkali aka yafi amfani a Pharmaceutical masana'antu to alkalize mafita ko daidaita pH darajar Pharmaceutical mafita.

14, electroplating, tungsten refining.

Allunan Alkali a cikin plating karfe azaman maganin electroplating, suna taka rawar madugu!

15, ƙera siliki, ƙera rayon auduga.

16. Fatar fata (Gabatarwa na amfani biyu na allunan alkali):

(1) Don aikin sake yin amfani da ruwan sharar tannery, jiƙa kuma ƙara maganin ruwa na sodium sulfide a cikin tsarin faɗaɗa da ke akwai.

Tsakanin matakai biyu na jiyya na lemun tsami foda, yin amfani da 30% sodium hydroxide bayani tare da nauyin tare da nauyin 0.3-0.5% yana karuwa don sa fiber na fata ya fadada sosai don saduwa da bukatun tsari da kuma inganta ingancin samfurori da aka gama.
(2) A matsayin matsakaiciyar alkaline da neutralizer, ƙara yawan ruwa zuwa ga reactor, sa'an nan kuma zafi har zuwa 90 ° C ta tururi, motsawa yayin ƙara polyvinyl barasa, sa'an nan kuma kwantar da shi zuwa 80 ° C bayan polyvinyl barasa. narkar da gaba daya.Bayan yin motsawa, ƙara hydrochloric acid a cikin maɗaukaki, ci gaba da motsawa na tsawon minti 20 zuwa 30, kuma ƙara adadin adadin ruwan formaldehyde.Rike shi dumi a 78 ~ 80 ℃, ba da damar shi don amsawa na 40 ~ 50 minutes, ƙara 10% sodium hydroxide bayani don neutralization, kwantar da shi zuwa 60 ~ 70 ℃, sa'an nan kuma ƙara da dabara urea don maganin amino, da kuma tace. Maganin manne ta hanyar layin yarn don amfani da ajiya.

17, Polyester sunadarai masana'antu:

ana amfani da shi don samar da formic acid, oxalic acid, borax, phenol, sodium cyanide da sabulu, fatty acids, kayan wanka na roba, da dai sauransu.

18, masana'antar bugu da rini:

amfani da matsayin auduga desizing wakili, tafasar wakili, mercerizing wakili da rage rini, Haichang blue rini ƙarfi.

19, masana'antar narkewa:

ana amfani da shi don kera aluminum hydroxide, aluminum oxide da kuma karfe surface jiyya wakili.

20, masana'antar kayan aiki,

amfani da matsayin acid neutralizer, decolorizing wakili, deodorizing wakili.

21, masana'antar m:

Ana amfani dashi azaman gelatinizer sitaci, neutralizer.

22, yi phosphate, yi manganate.

23. Sabunta tsohon roba.

24, ana iya amfani dashi azaman citrus, peach peeling agent da deodorant wakili.

25, Tablet alkali kuma ana amfani dashi a masana'antar magungunan kashe qwari.