roj refining tshuab nrog stainless hlau

Cov txheej txheem tseem ceeb ntawm cov khoom siv roj refinery
Degumming: Lub hom phiaj ntawm Degumming Zaub Roj yog tshem tawm cov pos hniav. Tag nrho cov roj muaj hydratable thiab tsis-hydratable pos hniav.
a. Dej Degumming: Hydratable pos hniav raug tshem tawm los ntawm kev kho cov roj nrog dej thiab cais cov pos hniav. Cov pos hniav tuaj yeem qhuav kom tsim cov lecithin.
b. Acid Degumming: Cov pos hniav uas tsis yog-Hydratable raug tshem tawm los ntawm kev kho cov roj nrog acids thiab cais cov pos hniav.

Neutralizing: Lub hom phiaj ntawm Neutralizing Zaub Roj yog tshem tawm Free-Fatty Acids (FFAs). Kev lig kev cai, FFAs raug kho nrog caustic soda (NaOH). Cov tshuaj tiv thaiv tsim Soaps uas tau cais los ntawm cov roj. Vim tias cov tshuaj xab npum tseem nyob hauv cov roj, cov roj yog ntxuav nrog dej los yog kho nrog Silica.
Qee cov processors nyiam tsis ua caustic neutralizing. Hloov chaw, lawv nyiam Lub Cev Refining uas FFAs tau evaporated los ntawm cov roj nyob rau hauv qhov kub thiab txias. Cov txheej txheem no tuaj yeem ua ke nrog deodorization kauj ruam piav qhia hauv qab FFA stripping.
Cov txheej txheem kev kho lub cev yog qhov zoo dua vim tias (a) nws tsis tsim cov xab npum; (b) nws rov qab cov roj fatty acids uas muab cov nqi rov qab zoo dua; (c) muaj qhov poob qis dua piv rau caustic refining-tshwj xeeb tshaj yog rau cov roj uas muaj FFAs siab dua; thiab (d) nws yog cov txheej txheem tsis muaj tshuaj lom neeg.

Tshuaj dawb: Lub hom phiaj ntawm Bleaching yog tshem tawm cov xim pigments muaj nyob rau hauv Zaub Roj. Cov roj yog kho nrog Bleaching Clays uas adsorb cov xim pigments. Cov av nplaum yog lim thiab cov roj bleached huv yog khaws cia rau kev ua haujlwm ntxiv. Cov txheej txheem khiav daim duab txuas nrog.

Deodorizing: Lub hom phiaj ntawm Deodorizing Zaub Roj yog tshem tawm cov ntxhiab tsw. Cov roj yog raug rau chav distillation nyob rau hauv qhov kub thiab txias thiab lub tshuab nqus tsev kom evaporate tag nrho cov ntxhiab tsw. Lub resulting deodorized roj yuav luag bland thiab tasteless.

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