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Preparation of organic acids by bipolar membrane electrodialysis
1000.0 USD ($)
Product Details:
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Preparation of organic acids by bipolar membrane electrodialysis Price And Quantity
- 1 Units
- 1000.0 USD ($)
Preparation of organic acids by bipolar membrane electrodialysis Trade Information
- Telegraphic Transfer (T/T) Letter of Credit (L/C)
- Yes
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- Ion exchange method is used in the downstream processing of traditional organic acid fermentation production. The ion exchange method is to make the organic acid salt solution through the acid type cation exchange column, in which the metal ion is exchanged with the hydrogen on the cation exchange resin, so as to convert the organic acid. The ion exchange column used in this method is large in volume, the ion exchange resin needs to be regenerated repeatedly, the operation is complicated, and a lot of acid base and washing water are consumed, and a lot of waste liquid is generated. If organic acids are produced directly from the fermentation liquid by bipolar membrane, the organic acids in the fermentation liquid are converted to organic acids by means of H+ of the bipolar membrane, and the dissociated OH- is combined with the cations in the fermentation liquid to form a base, which is then used for fermentation. This greatly reduces waste discharge, environmental pollution, chemical raw materials and energy consumption, and has significant industrial application value and environmental benefits; The process is simple, the product recovery rate and purity are high, and the economic benefits brought by the improvement of product quality are more significant. Bipolar membrane electrodialysis process has the advantages of high integration and energy saving, and has a wide range of application prospects in chemical production, biotechnology, food industry, environmental protection and other fields, such as: Organic salt production organic acid base/inorganic salt production inorganic acid base Ferrate preparation Chemical synthesis in organic phase Treatment of uranium processing wastewater Regeneration of sodium sulfate in rayon production Gas absorption Extraction and transformation of organic acid salts from fermentation broth Precipitation separation of soybean protein isolate Caseinic acid production
Product Description
Bipolar membrane is a new type of ion exchange composite membrane. The electrodialysis technology of bipolar membrane is applied to prepare the corresponding acid (HX) and base (MOH) from salt solution (MX). Under the action of direct current electric field, the salt anion (X-) enters the acid chamber through the anion exchange membrane, and then produces acid (HX) from the hydrogen ion dissociated from the bipolar membrane. The salt cation (M ) enters the alkali chamber through the cation exchange membrane, where it forms a base (MOH) with hydroxide ions dissociated from the bipolar membrane.
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