Unlock instant, AI-driven research and patent intelligence for your innovation.
Process for extracting lysine by ion exchange method
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
An ion exchange method and ion exchange resin technology are applied in the field of extracting lysine, which can solve the problems of wasting sulfuric acid and ammonia water, environmental pollution, etc., and achieve the effects of improving economic benefits and reducing the difficulty of environmental protection treatment.
Inactive Publication Date: 2006-06-21
魏凤鸣
View PDF0 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
This not only wastes a large amount of sulfuric acid and ammonia water, but also causes serious environmental pollution.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0017] A lysine production plant with an annual output of 10,000 tons. Fermentationacid production is calculated at 10%. The annual production is 330 days, and the daily output of fermentation and filtered clear liquid is 300m 3 , containing 30 tons of lysine.
[0018] After the fermentation of lysine is completed, it is directly heated to 84°C in the fermenter for 16 minutes, then filtered, and the slag is removed to obtain the clear liquid, which is stored in 400m 3 volume storage tank.
[0019] 30 strongly acidic hydrogen-type neutral ion exchange columns for adsorption, each column contains 10m of ion exchange resin 3 , flow rate 0.5~15m 3 / m 3 Resin per hour, after the adsorption is saturated, wash with water to remove impurities, and then elute with 2 molarcalcium chloride solution, the flow rate is 0.5 ~ 15m 3 / m 3 resin hours.
[0020] Pour the high-concentration components of the eluted effluent into the treatment tank, under stirring, adjust the pH to 6-7 wit...
[0024] After the fermentation is completed, heat it to 85°C in the tank, keep it for 15 minutes, filter the clear liquid, and store it in 200m 3 volume storage tank.
[0025] 15 strongly acidic hydrogen-type neutral ion exchange columns for adsorption, each column contains 10m of ion exchange resin 3 , flow rate 0.5~15m 3 / m 3 Resin per hour, after adsorption is saturated, rinse with water to remove impurities, then elute with 3 molar calcium chloride solution, flow rate 0.5 ~ 15m 3 / m 3 resin hours.
[0026] Put the high-concentration components of the eluate into the treatment tank, add sodiumcarbonate to adjust the pH to 6-7 under stirring, remove calcium plasma, then add 1-4% powdered activated carbon, continue stirring for 30 minutes, and...
Embodiment 3
[0028] Embodiment 3: as described in embodiment 1, the difference is that the eluent is 1.5 molar sodium chloride solution.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention discloses a method for extracting lysine by an ion exchange method, which belongs to the technical field of biochemical industry. Including heating and filtering the fermentation broth, the obtained filtrate is directly adsorbed by a strong acidic hydrogen-type neutral ion exchange resin column, after the adsorption is saturated, it is washed with water to remove impurities, and eluted with a metalchloride solution, while lysine is eluted That is to convert into hydrochloride, and then use sodiumcarbonate to remove metal ions from the effluent eluent, then concentrate and crystallize to obtain the finished product of lysine. The method of the invention does not need to acidify the filtrate, and does not need to be eluted with ammonia water, and the eluent is concentrated and crystallized after removing calcium ions. The eluted ion exchange column is regenerated with hydrochloric acid, and the outflowing chloride solution such as calciumchloride is adjusted and reused, forming a virtuous circle. It can significantly reduce the difficulty of environmental protection treatment of wastewater and greatly improve economic benefits.
Description
(1) Technical field [0001] The invention relates to a method for extracting lysine by an ion exchange method, which belongs to the technical field of biochemical industry. (2) Background technology [0002] In the lysine production process, after the fermentation is completed, the lysine in the fermentation broth needs to be extracted and recovered. The existing method for extracting lysine is an acidic ion exchange method, and the specific method includes heating the fermentation broth to 80°C Maintain for 15 minutes, filter to obtain the filtrate, use hydrochloric acid or sulfuric acid to adjust the pH below 2 to obtain an acidified solution, use a strong acidic hydrogen type acidic ion exchange resin column to adsorb the lysine in the acidified solution, after the adsorption is saturated, use 2~ 2.5 molarammonia water for elution. Then the high-concentration component of concentrated crystallization will be acidified for the second time with hydrochloric acid to make it...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More