Pane maitiro maviri ekugadzira karusiyamu chloride, imwe inzira yeasidhi uye imwe inzira yealkali.
Iyo asidhi nzira inonyanya kugadzirirwa nemakemikari maitiro e limestone uye hydrochloric acid. Inenge 22% dilute hydrochloric acid inoshandiswa kuita nelimestone (ine inenge 52% calcium) kugadzira 27% liquid calcium chloride. Mushure mekusefa uye kuparadzaniswa, iyo sefa yakasara inoraswa. Iyo filtrate haina neutralized ne lime mukaka kugadzirisa pH = 8.9-9. Kusachena mumushonga wecalcium chloride senge ini, Fe, al1, nezvimwewo zvinoumba insoluble me (OH) 2, Fe (OH) 3, A1 (OH) 3, zvichingodaro kudonha. Iyo sefa keke imarara akasimba, Iyo filtrate inoiswa kune matatu-mhedzisiro inomanikidza kutenderera vacuum evaporation kuti iwedzere 27% calcium chloride mhinduro kusvika 68-69%, uye yobva yaiswa muflaker yekugadzira. Iyo flake calcium chloride yakaomeswa mumubhedha wakazara mvura kuti ibudise 74% calcium chloride dihydrate.
Alkali nzira inogadzira calcium chloride: 1. Direct evaporation process yecalcium chloride: kazhinji, zviri mukati me calcium chloride mumarara edoro resoda i76.8g/l. Mushure mekucheneswa, inotanga kuiswa, kuparadzaniswa kunze kwemakristasi asina maturo, uyezve kuisa pfungwa kuti iwane calcium chloride.
2. Calcium chloride munyu pre evaporation process: kazhinji, nzvimbo yemunyu inopararira inoshandiswa kupepetesa soda ash tsvina yemvura. Munyu uri mumvura inorasa inogadzikiswa, uye munyu uri mumvura inorasa uchatanga kunaya. Nekuwedzera kwekubuda kwemhepo, munyu wakawanda uchave wakawedzera. Iyo yakasara calcium chloride fluid ichaunganidzwa mumidziyo yekubuda, uye calcium chloride ichawanikwa.
Musiyano uripo pakati pemagadzirirwo maviri ekugadzira ndewekuti kuoma kwecalcium chloride inogadzirwa neasidhi nzira yakakwira kupfuura iyo nenzira yealkali, asi kune yakawanda tsvina, isina kugadzikana ruvara uye flavour, uye nzira yeasidhi yakachipa kupfuura nzira yealkali. Mapiritsi eCalcium chloride anowanikwa nealkali process akatetepa uye asina kusimba, ane kuchena kwepamusoro, kusvibiswa kushoma uye ruvara ruchena kwazvo.
Nguva yekutumira: Aug-09-2022