Flat sheet membrane equipment spiral-wound membrane equipment Ceramic membrane / Tube membrane equipment Hollow fiber membrane / MBR equipment Disk-tube membrane (DTRO) equipment Continuous ion-exchange(SMB)/Chromatographic separation equipment Forward osmosis(FO)/Continuous dialysis equipment Electrodialysis(ED)/ Bipolar membrane electrodialysis(BMED) equipment Customized experimental equipment Membrane selection and other Membrane performance testing equipment
Membrane separation Continuous ion-exchange / Chromatographic separation Electrodialysis(ED)/ Bipolar membrane electrodialysis(BMED) Equipment accessories / consumables Customized engineering equipment
Application area Engineering case Industry information Membrane separation technology
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維生素又名維他命,是生物體內(nèi)一類量微、化學(xué)結(jié)構(gòu)各異,具有特殊功能的小分子有機(jī)化合物。在維生素的工業(yè)生產(chǎn)中,維生素的提取純化方法包括:化學(xué)合成法、發(fā)酵法、離子交換法等。
維生素(vitamin)是人和動物為維持正常的生理功能而必需從食物中獲得的一類微量有機(jī)物質(zhì),在人體生長、代謝、發(fā)育過程中發(fā)揮著重要的作用。
維生素是人和動物營養(yǎng)、生長所必需的某些少量有機(jī)化合物,對機(jī)體的新陳代謝、生長、發(fā)育、健康有極重要作用。如果長期缺乏某種維生素,就會引起生理機(jī)能障礙而發(fā)生某種疾病。一般由食物中取得?,F(xiàn)在發(fā)現(xiàn)的有幾十種,如維生素A、維生素B、維生素C等。
多數(shù)維生素都能直接從食物中獲取,隨著人們生活品質(zhì)的不斷提高,維生素的用量也越來越大,單純從食物攝取維生素已經(jīng)滿足不了人們的需求;進(jìn)而從動植物中提取或微生物代謝等采用多種手段生產(chǎn)維生素。
中國是維生素生產(chǎn)大國,其中維生素C更是壟斷了全球市場。中國維生素C行業(yè)的崛起與連續(xù)離子交換系統(tǒng)的應(yīng)用有著密不可分的關(guān)系。
維生素C典型提取工藝:
VC.Na轉(zhuǎn)VC的工藝流程圖如下:
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