nhau

Sulfur dhayizvave zviripo kwemakore anopfuura zana.Madhayi esarufa ekutanga akabudiswa naCroissant naBretonniere muna 1873. Vakashandisa zvinhu zvine organic fibers, zvakadai sehuni chips, humus, bran, tsvina donje, uye tsvina Pepa nezvimwewo, zvakawanikwa nekupisa alkali sulfide uye polysulfide alkali.Iyi dhayi ine rima-ruvara uye kunhuwa-kunhuwa kwehygroscopic ine chimiro chisina kugadziriswa mubhati yealkali uye inonyungudika nyore mumvura.Kana donje rakadhayiwa mubhati yealkali uye yekugezesa sarufa, madhayi egirinhi anogona kuwanikwa.Kana yakafumurwa kumhepo kana makemikari oxidized ne dichromate mhinduro yekugadzirisa ruvara, jira redonje rinogona kutsvuka.Nekuda kwekuti dhayi idzi dzine zvinhu zvakanakisa zvekudhaya uye nemitengo yakaderera, dzinogona kushandiswa muindasitiri yekudhaya donje.
Muna 1893, R. Vikal yakanyungudusa p-aminophenol nesodium sulfide nesarufa kuti ibudise dhayi nhema dzesarufa.Akawana zvakare kuti eutectic yemamwe mabenzene nenaphthalene derivatives ine sarufa uye sodium sulfide inogona kugadzira akasiyana siyana esarufa madhayi matema.Kubva ipapo, vanhu vakagadzira dhayi dzebhuruu dzesarufa, dhayi dzvuku dzeSulfur uye dhayi dzegirini dzesarufa pahwaro uhwu.Panguva imwecheteyo, nzira yekugadzirira uye nzira yekudhaya zvakare yakagadziridzwa zvakanyanya.Dhayi dzesarufa dzinonyungudika nemvura, dhayi dzesarufa dzemvura uye dhayi dzesarufa dzinoenderana nemhoteredzo dzave dzichioneka imwe pashure peimwe, zvichiita kuti dhayi dzesarufa dzigadziriswe zvine simba.
Dhayi dzesarufa ndeimwe yedhayi dzinoshandiswa zvakanyanya.Maererano nemishumo, kubudiswa kwenyika kwedhayi dzesarufa kunosvika mazana ezviuru zvematani, uye rudzi runokosha zvikurusa dema resarufa.Kubuda kwesarufa nhema kunotora 75% -85% yehuwandu hwekubuda kwedhayi dzesarufa.Nekuda kwekugadzirwa kwayo kuri nyore, mutengo wakaderera, kumhanyisa kwakanaka, uye kusaita kenza, inofarirwa nevagadziri vakasiyana-siyana vanodhinda nedhayi.Inoshandiswa zvakanyanya mukudhayiwa kwedonje uye mamwe ma cellulose fiber, ine dema neblue nhevedzano ndiyo inonyanya kushandiswa.

madhayi esarufasarufa nhema brsarufa nhema sarufa nhema


Nguva yekutumira: Kubvumbi-16-2021