Rudzi rwekushandisa uye kushandiswa kwesodium hydroxide

Rudzi rwekushandisa uye kushandiswa kwesodium hydroxide

YANGZHOU EVERBRIGHT CHEMICAL CO.LTD.

Caustic soda piritsi imhando ye caustic soda, kemikari zita sodium hydroxide, inonyungudika alkali, inoparadza zvakanyanya, inogona kushandiswa se acid neutralizer, ine masking agent, precipitating agent, precipitation masking agent, color agent, saponification agent, peeling agent, detergent uye zvichingodaro

Zvakasiyana-siyana.Kushandiswa kwakajairika kwecaustic soda mapiritsi kunopfupikiswa sezvizvi:

1, kugadzira mapepa:

papermaking raw materials ndeye huni kana uswa zvinomera, izvi zvinomera kuwedzera kune cellulose, asiwo zvine huwandu hwakati wandei husiri cellulose (lignin, chingamu, nezvimwewo).Flake alkali inoshandiswa pakugadzirisa, uye fiber inogona kuwanikwa chete nekubvisa lignin kubva muhuni.Iyo isiri-cellulose chikamu chinogona kunyungudika nekuwedzera dilute caustic soda mhinduro, kuitira kuti cellulose sechikamu chikuru che pulp inogona kugadzirirwa.

2, peturu yakanatswa:

Mushure mokunge zvigadzirwa zvepetroleum zvashambidzwa ne sulfuric acid, zvimwe zvinhu zvine acidic zvinofanira kushambidzwa nepiritsi alkali solution, uye zvino kugezwa kuti uwane zvigadzirwa zvakanatswa.

3. Textile:

machira edonje nerineni anobatwa neconcentrated sodium hydroxide (caustic soda) mhinduro yekuvandudza mafiber properties.Mafibhi ekugadzira akadai sedonje rekugadzira, makushe ekugadzira, rayon, nezvimwewo, anonyanya kuve maviscose fibers, anogadzirwa necellulose (senge pulp), caustic soda, kabhoni disulfide (CS2) semidziyo mbishi, yakagadzirwa ne viscose, nekuruka, condensation.

4, kudhinda uye kudhaya:

jira redonje rine alkaline mhinduro kurapwa, rinogona kubvisa rakavharwa nedonje jira wakisi, girisi, starch uye zvimwe zvinhu, apo kuwedzera mercerization ruvara rwejira, kuitira kuti dhayi zvakawanda yunifomu.

5, kugadzira sipo:

chikamu chikuru chesipo munyu wesodium yemafuta acids epamusoro, anowanzo gadzirwa nemafuta nemapiritsi ealkali semidziyo yakabikwa kuburikidza nesaponification reaction.Mukuwedzera kune yakakwira mafuta acid munyu, sipo inewo rosin, girazi remvura, zvinonhuwira, dhayi uye mamwe mafiritsi.Zvimiro, iyo yakakwirira mafuta acid sodium ine isiri-polar hydrophobic chikamu (hydrocarbon boka) uye polar hydrophilic chikamu (carboxyl boka).Iro hydrophobic boka rine oleophilic properties.Panguva yekugeza, girizi mutsvina inomutswa uye inoparadzirwa mumadonhwe madiki emafuta, uye mushure mekusangana nesipo, boka rehydrophobic (hydrocarbon group) repamusoro fatty acid sodium mamorekuru anopinzwa mumadonhwe emafuta, uye mamorekuru emafuta anoiswa. vakasungwa pamwechete nemauto evan der Waals.Iro hydrophilic boka (carboxyl boka), iro rinonyungudika nyore nyore mumvura, rinowedzerwa kunze kwekudonha kwemafuta uye rinopinzwa mumvura.Chinhu chikuru chesipo iNaOH, asi NaOH haisi sipo.Mushonga wayo une aqueous wakakora uye unogona kushandiswa sesipo.Sipo inonzi emulsifier.Nheyo yacho ndeye saponification reaction CH3CO0CH2CH3+NaOH=CH3COONA+CH3CH2OH, uye CH3COONA ndiyo inoshandiswa mu sipo.

6, indasitiri yemakemikari:

kugadzira simbi sodium, electrolytic mvura ndeye kushandisa mapiritsi ealkali.Kugadzirwa kwemainorganic salts akawanda, kunyanya kugadzirwa kweimwe sodium munyu (senge borax, sodium silicate, sodium phosphate, sodium dichromate, sodium sulfite, nezvimwewo) inoshandiswa muhwendefa alkali.Inoshandiswawo mukugadzirwa kwedhayi, zvinodhaka uye organic intermediates.

7, metallurgical indasitiri:

kazhinji kushandura chikamu chinoshanda che ore mu soluble sodium munyu, kuitira kuti ubvise tsvina isina kunyungudika, saka, kazhinji inoda kuwedzera alkali mapiritsi.Semuenzaniso, mukunyunguduka kwealuminium, kugadzirira kwekriyolite uye kurapwa kwebauxite kunoshandiswa.

8, kushandiswa kwe lime kuvandudza ivhu:

muvhu, nekuti iyo organic matter mukuora inoburitsa organic acids, weathering yemaminerari inogonawo kugadzira acidic zvinhu.Mukuwedzera, kushandiswa kwemafetereza asina kusimba akadai seammonium sulfate, ammonium chloride, nezvimwewo, kuchaitawo kuti ivhu rive neacidic.Kuisa chiyero chakafanira che lime kunogona kuita kuti asidhi iri muvhu isaite, kuita kuti ivhu rikodzere kukura kwembesa, uye kukurudzira kupararira kweutachiona.Mushure mekuwedzera kweCa2 + muvhu, inogona kukurudzira kuderedzwa kwevhu colloid, iyo inobatsira pakuumbwa kwezvikwata, uye panguva imwechete, inogona kupa calcin inodiwa pakukura kwemiti.

9. Kugadzirwa kwealuminium:

Mhinduro yeNaOH inopisa kunyungudutsa alumina mu bauxite uye kuwana sodium aluminiumate solution.Mushure mekunge mhinduro yapatsanurwa kubva kune zvakasara (dhaka dzvuku), tembiricha inodzikiswa, aluminium hydroxide inowedzerwa sembeu yekristaro, mushure menguva yakareba yekubvongodza, sodium aluminate inosvibiswa kuita aluminium hydroxide, yakashambidzwa, uye yakarukwa pa950 ~ 1200 ℃ , iyo yakapedzwa aluminium oxide inowanikwa.Mhinduro mushure mekunaya kwealuminium hydroxide inodaidzwa kunzi doro raamai, iro rinoputika uye rinoiswa uye rinoshandiswazve.Nekuda kwezvakasiyana crystalline zvimiro zve diaspore, diaspore uye diaspore, solubility yavo mu caustic soda mhinduro yakasiyana kwazvo, saka zvinodikanwa kupa akasiyana mamiriro ekunyungudika, kunyanya akasiyana tembiricha yekunyungudika.Iyo diaspore type bauxite inogona kunyungudika pa125 ~ 140C, uye iyo diaspore type bauxite inogona kunyungudutswa pa240 ~ 260 ℃ uye kuwedzera lime (3~7%).

10, Ceramics:

caustic soda mubasa rekugadzira ceramic ine mapoinzi maviri: chekutanga, mukupfuta kwekeramics, caustic soda se diluent.Chechipiri, pamusoro pekeramic yakadzingwa ichave yakakwenya kana yakashata kwazvo, uye mushure mekuchenesa necaustic soda solution, iyo ceramic surface ichava yakapfava.

11, disinfection:

hutachiona hweprotein denaturation.Aya anonyanya kushandiswa kuchenesa uye kuuraya utachiona mabhodhoro muindasitiri yewaini.

12, kuwedzera kumvura yakasviba:

yakasimba sodium oxide kugadzirisa iyo ph kukosha, sewage kurapwa, kuitira kuti zviwanikwa zvidzoke zvakare.

13, kugadzirira kwemakemikari, maindasitiri ekuwedzera:

Tablet alkali inonyanya kushandiswa muindasitiri yemishonga kuita alkalize mhinduro kana kugadzirisa pH kukosha kwemishonga mhinduro.

14, electroplating, tungsten kunatsa.:

Mapiritsi eAlkali mune simbi plating se electroplating mhinduro, tamba basa re conductor!

15, kugadzira sirika, kugadzira rayon donje.

16. Indasitiri yematehwe (Kusuma mashandisirwo maviri emapiritsi ealkali):

(1) Yekudzokorodza maitiro etannery tsvina ash liquid, soak uye wedzera sodium sulfide aqueous solution mune iripo yekuwedzera maitiro.

Pakati pematanho maviri e lime poda yekunyorovesa kurapwa, kushandiswa kwe30% sodium hydroxide solution ine tare uremu 0.3-0.5% inowedzerwa kuita kuti ganda fiber riwedzere kuzadzisa zvinodiwa nemaitiro uye kuvandudza kunaka kwehafu-yakapera zvigadzirwa.
(2) Senge alkaline medium uye neutralizer, wedzera huwandu hwemvura kune reactor, uye wobva wapisa kusvika 90 ° C kuburikidza nehutsi, kurunga uchiwedzera polyvinyl doro, uye wozotonhorera pasi kusvika 80 ° C mushure mekunge polyvinyl doro rave. yakanyungudika zvachose.Mushure mekukurudzira, wedzera hydrochloric acid muchidimbu, ramba uchikurudzira kwemaminitsi makumi maviri kusvika makumi matatu, uye wobva wawedzera huwandu hwemvura ye formaldehyde.Chengetedza ichidziya pa78 ~ 80 ℃, bvumira kuti iite kwe40 ~ 50 maminetsi, wedzera iyo yakagadziriswa 10% sodium hydroxide solution yekusagadzikana, itonhodze kusvika pa60 ~ 70 ℃, wobva wawedzera formula urea yekurapwa amino, uye sefa. mushonga weglue kuburikidza neshinda mambure kuitira kushandiswa kwekuchengetedza.

17, polyester kemikari indasitiri:

inoshandiswa kugadzira formic acid, oxalic acid, borax, phenol, sodium cyanide nesipo, synthetic fatty acids, synthetic detergent, nezvimwe.

18, indasitiri yekudhinda machira uye kudhaya:

inoshandiswa sedonje desizing agent, mercerizing agent uye dhayi yekuderedza, Haichang blue dye solvent.

19, indasitiri yekunyungudutsa:

inoshandiswa kugadzira aruminiyamu hydroxide, aluminium oxide uye simbi pamusoro pekurapa mumiririri.

20, indasitiri yezviridzwa,:

inoshandiswa seasidhi neutralizer, decolorizing agent, deodorizing agent.

21, indasitiri yekunamatira:

inoshandiswa se starch gelatinizer, neutralizer.

22, kugadzira phosphate, kugadzira manganeti.

23. Kuberekwazve kwerabha yekare.

24, inogona kushandiswa se citrus, peach peeling agent uye decolorizing agent, deodorant.

25, piritsi alkali rinoshandiswawo mukugadzira mishonga yezvipembenene.