CN109678769A - A method of comprehensive utilization methionine crystalline mother solution produces methionine metal chelate - Google Patents

A method of comprehensive utilization methionine crystalline mother solution produces methionine metal chelate Download PDF

Info

Publication number
CN109678769A
CN109678769A CN201910113862.8A CN201910113862A CN109678769A CN 109678769 A CN109678769 A CN 109678769A CN 201910113862 A CN201910113862 A CN 201910113862A CN 109678769 A CN109678769 A CN 109678769A
Authority
CN
China
Prior art keywords
methionine
potassium
mother solution
crystalline mother
metal chelate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910113862.8A
Other languages
Chinese (zh)
Other versions
CN109678769B (en
Inventor
周荣超
廖常福
粟宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lufeng Tianbao Phosphorus Chemical Co Ltd
Original Assignee
Lufeng Tianbao Phosphorus Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lufeng Tianbao Phosphorus Chemical Co Ltd filed Critical Lufeng Tianbao Phosphorus Chemical Co Ltd
Priority to CN201910113862.8A priority Critical patent/CN109678769B/en
Publication of CN109678769A publication Critical patent/CN109678769A/en
Application granted granted Critical
Publication of CN109678769B publication Critical patent/CN109678769B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C319/00Preparation of thiols, sulfides, hydropolysulfides or polysulfides
    • C07C319/14Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
    • C07C319/20Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides by reactions not involving the formation of sulfide groups
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K20/00Accessory food factors for animal feeding-stuffs
    • A23K20/10Organic substances
    • A23K20/142Amino acids; Derivatives thereof
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/06Preparation of sulfates by double decomposition

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Inorganic Chemistry (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Animal Husbandry (AREA)
  • Zoology (AREA)
  • Materials Engineering (AREA)
  • Food Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The present invention relates to a kind of methods of comprehensive utilization methionine crystalline mother solution production methionine metal chelate, this method is using the methionine crystalline mother solution of extraction as raw material, the following steps are included: the methionine crystalline mother solution of (1) extraction carries out heating concentration, obtain methionine potassium and potassium carbonate mixed liquor, analyze the methionine and potassium content in mixed liquor, a certain amount of methionine is added into obtained mixed liquor, obtains methionine aqueous solutions of potassium;(2) methionine aqueous solutions of potassium is added in metal sulfate saline solution and carries out chelatropic reaction, filtered, washing, drying, obtain methionine metal chelate, concentrating filter liquor, crystallization obtain potassium sulfate crystal.This method makes full use of methionine and saleratus production methionine metal chelate in the methionine crystalline mother solution of extraction, not only solves the aggregation of impurity in methionine production process, and play the comprehensive utilization of waste, has reached economy and environment two-win.

Description

A method of comprehensive utilization methionine crystalline mother solution produces methionine metal chelate
Technical field
The invention belongs to the complex compound preparation field that organises, especially a kind of comprehensive utilization methionine crystalline mother solution produces egg The method of propylhomoserin metallo-chelate, methionine metal chelate are mainly used for animal feed additive.
Background technique
5-(2- methylmercaptoethyl is hydrolyzed under the conditions of the mainstream production method of known methionine is existing for the potassium carbonate)- Hydantoins aqueous solution obtains the methionine aqueous solutions of potassium containing potassium carbonate, then water-soluble to the methionine potassium containing potassium carbonate Being passed through after carbon dioxide neutralizes in liquid makes the crystallization of its methionine be precipitated, separate, and respectively obtains methionine wet product and contains methionine Potassium bicarbonate aqueous solution (filtrate);Potassium bicarbonate aqueous solution (filtrate) containing methionine is back to 5- by concentration (2-methylmercaptoethyl)-hydantoins aqueous hydrolysis process.
United States Patent (USP) US4069251 discloses a kind of methionine continuous producing method, including following production stage: 5-(2- Methylmercaptoethyl)-hydantoins hydrolyzes in alkali carbonate and/or bicarbonate aqueous solution, utilize carbon dioxide separation The methionine of production, and include that the mother liquor of alkali metal hydrogencarbonate and methionine is recycled in production.
Since the mother liquor of alkali metal containing bicarbonate and methionine is recycled, it is therefore necessary to by a certain amount of mother liquor from It is removed in system, that is to say, that carry out so-called part cleaning, such operation purpose is to avoid the impurity in mother liquor system With gathering for coloring matter.However, the mother liquor removed by part cleaning still includes valuable methionine and sylvite component, such as Fruit discharges the mother liquor removed by part cleaning without handling it, is unfavorable from the perspective of economical and environmental-friendly , and usually simple direct processing mode is exactly burning disposal, or in order to separate the methionine of formation and bicarbonate, it will Mother liquor fraction in alap temperature carbon dioxide and, and with 2 to 3 times two of water-soluble solvent such as methanol and acetone and Mixing, its methionine and bicarbonate is precipitated sufficiently, to achieve the purpose that separation and recovery.
United States Patent (USP) US4303621 discloses a kind of method: if isolating mother liquor quilt caused by most of methionine Concentration and cooling carbonating, then methionine and potassium can be easily in the form of filtering from potassium carbonate-methionine carbonating process Circulation fluid in recycle, wherein mother liquor be concentrated at least be containing titratable potassium content 120 can be every liter, and carbonate in dioxy Changing carbon pressure power is that the pressure of 0.5~20 strict atmospheric carries out.
Japan Patent JP-A-5-320124 discloses a kind of method for producing methionine, including from mother liquor point From the filtrate left with collection methionine, isopropanol is added with the amount of 0.5~2 part of weight of every part of weight filtrate into filtrate, Cooling condition carbon dioxide precipitates its methionine and saleratus with 0.5~20 strict atmospheric pressure saturation filtrate and separates Recycle these precipitatings.
However according to these methods, main impurity is methionine dimer in mother liquor, and methionine dimer is in alkalinity Under the conditions of can be converted into methionine, the equivalent for methionine is considered as, only such as two of methionine in fruit mother liquor Aggressiveness accumulation is excessive, other substances such as polyethylene that will affect the crystallization of methionine, however be added in methionine crystallization process Alcohol, sorbitan lauric acid rouge, hydroxypropyl methyl cellulose etc. can be accumulated, either above-mentioned side with the circulation of mother liquor Method is added organic solvent miscible with water and carries out precipitate methionine and potassium and saleratus, and obtained methionine and saleratus are same These impurity can be carried secretly, to can be brought into system again, this method is fundamentally that can't resolve impurity in mother liquor in fact Accumulation, fundamentally solve effective method and be exactly that part extraction mother liquor carries out burning disposal, thus avoid or Solve the aggregation of impurity in systems.Certainly, such processing is carried out under the premise of sacrificialing environment and economy, because burning It burns in the mother liquor of processing also containing valuable considerable methionine and saleratus.
Microelement is highly important nutritive additive, the micro member generally used in feed, premix at present Plain additive is mainly the inorganic salts such as sulfate, chlorate, oxide, they have many defects, such as: in Animal nutrition due to It chemically reacts complicated in digestion process, vulnerable to the influence of the ingredients such as phosphate, phytic acid in feed, and forms infusible precipitate, Biological value is reduced, affects and is absorbed and utilized;Inorganic salts generally have the crystallization water, easy moisture absorption agglomeration in feed processing. Inorganic salts are stronger to destructions such as vitamin and greases.Some feed factories use high manganese high zinc diets, produce effects not high, and serious Pollute environment.
Organic trace element chelating object replace inorganic mineral salt as additive can solve metallic element excess addition with The problems such as absorption rate is low.Organic trace element chelating object refers to what metal ion was formed by coordinate bond and ligands Cyclic compound, molecular weight are usually no more than 800.Research shows that microelement amino acid chelate object is the safer third generation Trace mineral supplement, compared with inorganic mineral salt, microelements aminophenol chelated has the following characteristics that (1) chemical structure Stablize, microelement is not easy to be made to precipitate or be adsorbed;(2) biological value is high, not only absorbs fastly, but also saves energy i (in vivo) and disappear Consumption;(3) improve growth of animals or poultry performance and anti-stress ability effect is fairly obvious;(4) absorption efficiency is high, and usage amount significantly reduces, Heavy metal element can be substantially reduced to be discharged with excrement to pollution caused by environment.
Many experiments confirm the trace element chelated metal salt of methionine with its unique chemical structure, the necessary gold of animal Belong to element and methionine to combine with the molar ratio of 1:2, molecular structure stabilized has highest biological value and excellent change Stability is learned, the drawbacks of not only having avoided the mutual antagonism between minerals, but also eliminated inorganic salts phylloquinone oxide K1.Egg ammonia The trace element chelated metal salt of acid integrates economy, high efficiency, the feature of environmental protection, high, anti-interference with digestibility, The advantages that non-stimulated and nonhazardous, is widely used in feed, food service industry.
It is well known that the preparation method of methionine metal chelate is usually to be with commodity grade methionine and metal inorganic salt The molar ratio of raw material, the pH of sodium hydroxide adjusting reaction system, methionine and metal ion is 2:1, obtained methionine metal Chelate, by-product sodium sulphate.
In view of the above-mentioned deficiencies, by the production practices of inventor's many years, a kind of comprehensive utilization methionine crystallization is developed The method that mother liquor produces methionine metal chelate, this method make full use of methionine and carbon in the methionine crystalline mother solution of extraction Potassium hydrogen phthalate produces methionine metal chelate, plays the comprehensive utilization of waste, has reached economy and environment two-win.
Summary of the invention
In order to solve these problems, present inventor have found one effectively from the mother liquor of discharge recycle methionine and its The method of methionine dimer is widely studied.As a result, it has been found that the egg in the mother liquor that it can by the following method discharged Propylhomoserin and methionine dimer are fully utilized, and reach the two-win on economical and environmentally friendly.Heat is carried out to the mother liquor discharged Processing, makes its methionine dimer be hydrolyzed to methionine, then analyzes the molar ratio of wherein methionine and potassium ion, and egg ammonia is added Acid makes potassium carbonate in its mother liquor after Overheating Treatment be converted into methionine potassium, finally obtains methionine aqueous solutions of potassium, methionine Aqueous solutions of potassium and metal sulfate saline solution carry out chelatropic reaction, respectively obtain methionine metal chelate and potassium sulfate.Sulfuric acid The value of potassium be it is relatively high, can be used as chemical fertilizer processing completely, it is base that the market price of potassium sulfate and potassium carbonate, which is scaled potassium, It is equivalent in sheet.The present invention is accomplished according to above-mentioned discovery, it is such be the discovery that based on to waste comprehensively consider and A large amount of experimental demonstration and its by-product market value consider and obtain.
A kind of side of comprehensive utilization methionine crystalline mother solution production methionine metal chelate provided by according to the present invention Method, this method are using the methionine crystalline mother solution of extraction as raw material, comprising the following steps:
(1) the methionine crystalline mother solution produced carries out heating concentration, obtains methionine potassium and potassium carbonate mixed liquor, analyzes mixed liquor In methionine and potassium content, a certain amount of methionine is added into obtained mixed liquor, obtains methionine aqueous solutions of potassium;
(2) methionine aqueous solutions of potassium is added in metal sulfate saline solution and carries out chelatropic reaction, filtered, washing, drying, obtain To methionine metal chelate, concentrating filter liquor, crystallization obtain potassium sulfate crystal.
The present invention produces the method for methionine metal chelate as a kind of comprehensive utilization methionine crystalline mother solution and is able to Using wherein the methionine crystalline mother solution are as follows: in sylvite technique, be passed through carbon dioxide neutralization, obtained after separation methionine Crystalline mother solution, the mother liquor group become methionine, saleratus, potassium carbonate, methionylmethionine, other organic matters such as polyvinyl alcohol, Sorbitan lauric acid rouge or hydroxypropyl methyl cellulose, wherein methionine is 4.0 wt %~9.0wt%, potassium ion 4.0 Wt %~11.0wt%, methionylmethionine be 0.01 wt %~1.0wt%, other organic impurities be 0.01 wt %~ 0.5wt%, the pH of mother liquor are 7.5~9.0.The extraction of such mother liquor is necessary operation in methionine production process, to prevent Impurity in mother liquor is assembled in system, to influence the quality and methionine crystallization of methionine product.And impurity in order to prevent Accumulate the partial mother liquid of extraction often the measure taken of tradition be carry out burning disposal be either added it is miscible with water organic molten Agent such as methanol, acetone, isopropanol etc. carries out that methionine and saleratus is precipitated, however only burns the real impurity that solves and gather Collection problem, the problem of can burning institute's band are that the methionine and saleratus in mother liquor can not recycle, cause methionine and The loss of saleratus, this is not only economic loss, and burning disposal also brings pollution environmentally, generates dioxy Change the pollutants such as sulphur.
Impurity in mother liquor is partly due to caused by reaction that inevitable methionine dimer is exactly raw material 5-(2- first sulphur Base ethyl) hydrolysis of-hydantoins when endless fully hydrolyzed product, although such impurity is not enough to influence the matter of methionine product Amount, but the enrichment of methionine dimer will lead to methionine crystallization difficulty, when being especially passed through carbon dioxide, occur a large amount of Foamed phenomenon, cause to obtain the disadvantages of methionine bulk density is low, and powder is more.It would be appreciated that methionine dimerization Body can be converted into methionine under alkaline condition, by high temperature.
Therefore, further, in order to make methionine dimer in its mother liquor be converted into methionine, egg ammonia in the step (1) Acid crystal mother liquor heating temperature is 140 DEG C~200 DEG C, preferably 160 DEG C~185 DEG C, particularly preferred 175 DEG C~180 DEG C, described dense Potassium concentration is reduced to as 12.0wt%~20wt%, the molar ratio of potassium ion and methionine is 2~6:1, after methionine is added, potassium The molar ratio of ion and methionine is 0.90~1.0:1, and methionine concentration is 25.0wt%~48.0wt%, methionine aqueous solutions of potassium PH be 12~14.
For additional organic impurities such as such as polyvinyl alcohol, sorbitan lauric acid rouge or hydroxypropyl methyl cellulose Deng these organic matters are added to obtain the methionine crystal of high-bulk-density in methionine crystallization process, prevent excessive Powder occur, it is such must operate cause methionine crystallize after, impurity as part has stayed in mother liquor, so as to form Enrichment.Handling these impurity (including foreign pigment) optimal methods is to carry out active carbon decoloring, and the dosage of active carbon is mother liquor One thousandth of amount or so, bleaching temperature are 40 DEG C~60 DEG C, and bleaching time is 30~60min, and the removal rate of impurity can reach To 90% or more.
In the present invention, the molar ratio of methionine potassium and metal sulfate is 2:1 in the step (2), and chelating is anti- Answer temperature be 40 DEG C~90 DEG C, preferably 60 DEG C~85 DEG C, particularly preferred 65 DEG C~75 DEG C, the chelatropic reaction time be 30~ 180min, preferably 60~120min, particularly preferred 60~90min, addition sequence are that methionine aqueous solutions of potassium is added to metal In sulfate solution, or methionine potassium is added to the water simultaneously with metal sulfate.
Further, metal sulfate is zinc sulfate, ferrous sulfate, manganese sulfate, nickel sulfate, copper sulphate in the step (2) Solid or aqueous solution, preferred saturated aqueous solution, particularly preferred saturated aqueous solution.
Further, the molecular structural formula of the methionine metal chelate is as follows:
In the molecular structural formula of above-mentioned methionine metal-chelating, the molar ratio of methionine and metal M are 2:1, methionine metal chelating Closing object is anhydrous compound or hydrate.
The advantages and positive effects of the present invention are: the method for the present invention makes full use of egg ammonia in the methionine crystalline mother solution of extraction Acid and saleratus produce methionine metal chelate, not only solve the aggregation of impurity in methionine production process, avoid passing Burning disposal of uniting or the wasting of resources of method bring and a large amount of energy consumption that organic solvent processing miscible with water is added, The comprehensive utilization of waste is played, the methionine and its methionine dimer and saleratus in mother liquor have all obtained abundant benefit With having reached economy and environment two-win, production cost is low, and product purity is high, and production is simple easily operated, has very high work Industry application value.
Specific embodiment
The present invention is described in further detail below by specific embodiment, it is not to limit that following embodiment, which is descriptive, Property, this does not limit the scope of protection of the present invention.
Embodiment 1
500 kilograms of methionine crystalline mother solution is added in the autoclave with zirconium material, wherein the quality percentage of methionine Content is 7.5wt%, and the mass percentage of methionine dimer is 0.5wt%, and the mass percentage of potassium ion is 9.5wt%, The mass percentage of other organic matters is 0.02wt%, and the pH of mother liquor is 8.7;Be heated to 185 DEG C to mother liquor, it is heated The carbon dioxide gas that generation is suitably discharged in journey keeps the temperature 30 minutes in 185 DEG C of stirrings, obtains methionine potassium and potassium carbonate is water-soluble Liquid is analyzed wherein methionine dimer, is not detected.
Methionine potassium obtained above and potassium carbonate mixed liquor are cooled to 90 DEG C, carry out the matter for being concentrated under reduced pressure into methionine Amount percentage composition is 15wt%, potassium ion 19wt%, and 142.98 kilograms of methionine of 99wt% are then added, are warming up to 120 DEG C, Stirring completely reaction, obtain 393.0 kilograms of methionine aqueous solutions of potassium, wherein the mass percentage of methionine be 46wt%, potassium from The mass percentage of son is 12.08wt%, and the pH of solution is 13.5.0.4 kilogram of active carbon is added in the aqueous solution to carry out Decolorization, bleaching temperature are 60 DEG C, and bleaching time is 60 minutes, filters active carbon, and it is yellowish for obtaining methionine aqueous solutions of potassium Color.
225.38 kilograms of zinc sulfate saturated aqueous solution (60 DEG C, zinc sulfate 42.98wt%) are added in chelatropic reaction kettle, so It is stirred under state, is slowly added into methionine aqueous solutions of potassium obtained above, after adding, be warming up to 80 DEG C of insulated and stirreds 70 and divide Clock;After having reacted, 25 DEG C are cooled to, then filters, wash, obtain Methionine Chelated Zinc white powder, dried by 110 DEG C Processing obtains 213.63 kilograms of powdered Methionine Chelated Zinc, and yield 97%, purity 99%, the chelation percent of zinc is 99%, Wherein methionine content is 82.1wt%, and the mass percentage of zinc is 17.9wt%;Product is taken to carry out solubility analysis, dissolution Degree is 0.04 gram/100 milliliters water (37 DEG C).Filtrate passes through concentration, and crystallization obtains by-product potassium sulfate.
Embodiment 2
500 kilograms of methionine crystalline mother solution is added in the autoclave with zirconium material, wherein the quality percentage of methionine Content is 8.0wt%, and the mass percentage of methionine dimer is 0.1wt%, and the mass percentage of potassium ion is 9.0wt%, The mass percentage of other organic matters is 0.01wt%, and the pH of mother liquor is 8.5;Be heated to 185 DEG C to mother liquor, it is heated The carbon dioxide gas that generation is suitably discharged in journey keeps the temperature 30 minutes in 185 DEG C of stirrings, obtains methionine potassium and potassium carbonate is water-soluble Liquid is analyzed wherein methionine dimer, is not detected.
Methionine potassium obtained above and potassium carbonate mixed liquor are cooled to 90 DEG C, carry out the matter for being concentrated under reduced pressure into methionine Amount percentage composition is 16wt%, potassium ion 18wt%, and 133.85 kilograms of methionine of 99wt% are then added, are warming up to 120 DEG C, Stirring reaction completely, obtains 400.0 kilograms of methionine aqueous solutions of potassium, and wherein the mass percentage of methionine is 43.6wt%, potassium The mass percentage of ion is 11.25wt%, and the pH of solution is 13.0.In the aqueous solution be added 0.4 kilogram active carbon into Row decolorization, bleaching temperature are 60 DEG C, and bleaching time is 60 minutes, filters active carbon, and it is light for obtaining methionine aqueous solutions of potassium Yellow.
It is public that ferrous sulfate saturated aqueous solution (60 DEG C, ferrous sulfate 28.60wt%) 308.29 are added in chelatropic reaction kettle Jin, is so stirred under state, is slowly added into methionine aqueous solutions of potassium obtained above, after adding, be warming up to 80 DEG C of insulated and stirreds 70 minutes;After having reacted, 25 DEG C are cooled to, then filters, wash, obtain methionine chelate ferrous iron brownish-yellow powder shape, pass through 110 DEG C of drying and processings obtain 203.25 kilograms powdered of methionine chelate ferrous iron, yield 98%, purity 99%, the chela of zinc Conjunction rate is 99%, and wherein methionine content is 84.20wt%, and ferrous mass percentage is 15.80wt%;Product is taken to carry out molten Xie Du analysis, solubility are 0.035 gram/100 milliliters water (37 DEG C).Filtrate passes through concentration, and crystallization obtains by-product sulphur Sour potassium.
Embodiment 3
500 kilograms of methionine crystalline mother solution is added in the autoclave with zirconium material, wherein the quality percentage of methionine Content is 7.5wt%, and the mass percentage of methionine dimer is 0.5wt%, and the mass percentage of potassium ion is 9.5wt%, The mass percentage of other organic matters is 0.02wt%, and the pH of mother liquor is 8.7;Be heated to 185 DEG C to mother liquor, it is heated The carbon dioxide gas that generation is suitably discharged in journey keeps the temperature 30 minutes in 185 DEG C of stirrings, obtains methionine potassium and potassium carbonate is water-soluble Liquid is analyzed wherein methionine dimer, is not detected.
Methionine potassium obtained above and potassium carbonate mixed liquor are cooled to 90 DEG C, carry out the matter for being concentrated under reduced pressure into methionine Amount percentage composition is 15wt%, potassium ion 19wt%, and 142.98 kilograms of methionine of 99wt% are then added, are warming up to 120 DEG C, Stirring completely reaction, obtain 393.0 kilograms of methionine aqueous solutions of potassium, wherein the mass percentage of methionine be 46wt%, potassium from The mass percentage of son is 12.08wt%, and the pH of solution is 13.5.0.4 kilogram of active carbon is added in the aqueous solution to carry out Decolorization, bleaching temperature are 60 DEG C, and bleaching time is 60 minutes, filters active carbon, and it is yellowish for obtaining methionine aqueous solutions of potassium Color.
342.00 kilograms of copper sulphate saturated aqueous solution (60 DEG C, zinc sulfate 28.36wt%) are added in chelatropic reaction kettle, so It is stirred under state, is slowly added into methionine aqueous solutions of potassium obtained above, after adding, be warming up to 80 DEG C of insulated and stirreds 70 and divide Clock;After having reacted, 25 DEG C are cooled to, then filters, wash, obtain Methionine chelate copper blue powder shape, dried by 110 DEG C Processing obtains 218.212 kilograms of powdered Methionine chelate copper, and yield 98%, purity 99%, the chelation percent of copper is 99%, Wherein methionine content is 82.5wt%, and the mass percentage of copper is 17.5wt%;Product is taken to carry out solubility analysis, dissolution Degree is 0.04 gram/100 milliliters water (37 DEG C).Filtrate passes through concentration, and crystallization obtains by-product potassium sulfate.
Embodiment 4
500 kilograms of methionine crystalline mother solution is added in the autoclave with zirconium material, wherein the quality percentage of methionine Content is 8.0wt%, and the mass percentage of methionine dimer is 0.1wt%, and the mass percentage of potassium ion is 9.0wt%, The mass percentage of other organic matters is 0.01wt%, and the pH of mother liquor is 8.5;Be heated to 185 DEG C to mother liquor, it is heated The carbon dioxide gas that generation is suitably discharged in journey keeps the temperature 30 minutes in 185 DEG C of stirrings, obtains methionine potassium and potassium carbonate is water-soluble Liquid is analyzed wherein methionine dimer, is not detected.
Methionine potassium obtained above and potassium carbonate mixed liquor are cooled to 90 DEG C, carry out the matter for being concentrated under reduced pressure into methionine Amount percentage composition is 16wt%, potassium ion 18wt%, and 133.85 kilograms of methionine of 99wt% are then added, are warming up to 120 DEG C, Stirring reaction completely, obtains 400.0 kilograms of methionine aqueous solutions of potassium, and wherein the mass percentage of methionine is 43.6wt%, potassium The mass percentage of ion is 11.25wt%, and the pH of solution is 13.0.In the aqueous solution be added 0.4 kilogram active carbon into Row decolorization, bleaching temperature are 60 DEG C, and bleaching time is 60 minutes, filters active carbon, and it is light for obtaining methionine aqueous solutions of potassium Yellow.
By methionine aqueous solutions of potassium obtained above, manganese sulfate saturated aqueous solution (25 DEG C, manganese sulfate 38.91wt%) 225.08 kilograms are added in chelatropic reaction kettle simultaneously, are so stirred under state, after adding, are warming up to 80 DEG C of insulated and stirreds 70 and divide Clock;After having reacted, 25 DEG C are cooled to, then filters, wash, obtain methionine chelate manganese grey-brown powder shape, dried by 110 DEG C Dry-cure, obtains 202.91 kilograms of powdered methionine chelate manganese, and the chelation percent of yield 98%, purity 99%, manganese is 99%, wherein methionine content is 84.50wt%, and the mass percentage of manganese is 15.50wt%;Product is taken to carry out solubility analysis, Its solubility is 0.04 gram/100 milliliters water (37 DEG C).Filtrate passes through concentration, and crystallization obtains by-product potassium sulfate.
Embodiment 5
500 kilograms of methionine crystalline mother solution is added in the autoclave with zirconium material, wherein the quality percentage of methionine Content is 8.0wt%, and the mass percentage of methionine dimer is 0.1wt%, and the mass percentage of potassium ion is 9.0wt%, The mass percentage of other organic matters is 0.01wt%, and the pH of mother liquor is 8.5;Be heated to 185 DEG C to mother liquor, it is heated The carbon dioxide gas that generation is suitably discharged in journey keeps the temperature 30 minutes in 185 DEG C of stirrings, obtains methionine potassium and potassium carbonate is water-soluble Liquid is analyzed wherein methionine dimer, is not detected.
Methionine potassium obtained above and potassium carbonate mixed liquor are cooled to 90 DEG C, carry out the matter for being concentrated under reduced pressure into methionine Amount percentage composition is 16wt%, potassium ion 18wt%, and 133.85 kilograms of methionine of 99wt% are then added, are warming up to 120 DEG C, Stirring reaction completely, obtains 400.0 kilograms of methionine aqueous solutions of potassium, and wherein the mass percentage of methionine is 43.6wt%, potassium The mass percentage of ion is 11.25wt%, and the pH of solution is 13.0.In the aqueous solution be added 0.4 kilogram active carbon into Row decolorization, bleaching temperature are 60 DEG C, and bleaching time is 60 minutes, filters active carbon, and it is light for obtaining methionine aqueous solutions of potassium Yellow.
By methionine aqueous solutions of potassium obtained above, nickel sulfate saturated aqueous solution (25 DEG C, nickel sulfate 35.73wt%) 251.21 kilograms are added in chelatropic reaction kettle simultaneously, are so stirred under state, after adding, are warming up to 80 DEG C of insulated and stirreds 70 and divide Clock;After having reacted, 25 DEG C are cooled to, then filters, wash, obtain methionine chelate nickel shallow green powder shape, dried by 110 DEG C Dry-cure, obtains 202.94 kilograms of powdered methionine chelate nickel, and the chelation percent of yield 97%, purity 99%, nickel is 99%, wherein methionine content is 84.00wt%, and the mass percentage of nickel is 16.00wt%;Product is taken to carry out solubility analysis, Its solubility is 0.04 gram/100 milliliters water (37 DEG C).Filtrate passes through concentration, and crystallization obtains by-product potassium sulfate.

Claims (7)

1. it is a kind of comprehensive utilization methionine crystalline mother solution production methionine metal chelate method, which is characterized in that including with Lower step:
(1) it is heated and is concentrated as raw material using the methionine crystalline mother solution produced in methionine sylvite production process, obtain egg ammonia Sour potassium and potassium carbonate mixed liquor, are added methionine into obtained mixed liquor, obtain methionine aqueous solutions of potassium;
(2) methionine aqueous solutions of potassium is added in metal sulfate saline solution and carries out chelatropic reaction, filtered, washing, drying, obtain To methionine metal chelate, concentrating filter liquor, crystallization obtain potassium sulfate crystal.
2. a kind of side of comprehensive utilization methionine crystalline mother solution production methionine metal chelate according to claim 1 Method, which is characterized in that the methionine crystalline mother solution are as follows: in sylvite technique, be passed through carbon dioxide neutralization, obtained after separating methionine The crystalline mother solution arrived, the mother liquor group become methionine, saleratus, potassium carbonate, methionylmethionine, other organic matters such as polyethylene Alcohol, sorbitan lauric acid rouge or hydroxypropyl methyl cellulose, wherein methionine is 4.0 wt %~9.0wt%, and potassium ion is 4.0 wt %~11.0wt%, methionylmethionine be 0.01 wt %~1.0wt%, other organic impurities be 0.01 wt %~ 0.5wt%。
3. a kind of side of comprehensive utilization methionine crystalline mother solution production methionine metal chelate according to claim 2 Method, which is characterized in that methionine crystalline mother solution heating temperature is 140 DEG C~200 DEG C in the step (1), described to be concentrated into potassium Ion concentration is 12.0wt%~20wt%, and the molar ratio of potassium ion and methionine is 2~6:1, after methionine is added, potassium ion with The molar ratio of methionine is 0.90~1.0:1, and methionine concentration is 25.0wt%~48.0wt%.
4. a kind of side of comprehensive utilization methionine crystalline mother solution production methionine metal chelate according to claim 2 Method, which is characterized in that the molar ratio of methionine potassium and metal sulfate is 2:1, chelatropic reaction temperature in the step (2) It is 40 DEG C~90 DEG C, the chelatropic reaction time is 30~180min, and addition sequence is that methionine aqueous solutions of potassium is added to metal sulphur In acid salt aqueous solution, or methionine potassium is added to the water simultaneously with metal sulfate.
5. a kind of side of comprehensive utilization methionine crystalline mother solution production methionine metal chelate according to claim 2 Method, which is characterized in that metal sulfate is zinc sulfate, ferrous sulfate, manganese sulfate, nickel sulfate, copper sulphate in the step (2).
6. a kind of side of comprehensive utilization methionine crystalline mother solution production methionine metal chelate according to claim 1 Method, which is characterized in that the molecular structural formula of the methionine metal chelate is as follows:
7. a kind of side of comprehensive utilization methionine crystalline mother solution production methionine metal chelate according to claim 6 Method, which is characterized in that in the molecular structural formula of the methionine metal-chelating, the molar ratio of methionine and metal M are 2:1, egg Propylhomoserin metallo-chelate is anhydrous compound or hydrate.
CN201910113862.8A 2019-02-14 2019-02-14 Method for producing methionine metal chelate by comprehensively utilizing methionine crystallization mother liquor Active CN109678769B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910113862.8A CN109678769B (en) 2019-02-14 2019-02-14 Method for producing methionine metal chelate by comprehensively utilizing methionine crystallization mother liquor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910113862.8A CN109678769B (en) 2019-02-14 2019-02-14 Method for producing methionine metal chelate by comprehensively utilizing methionine crystallization mother liquor

Publications (2)

Publication Number Publication Date
CN109678769A true CN109678769A (en) 2019-04-26
CN109678769B CN109678769B (en) 2024-04-19

Family

ID=66195630

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910113862.8A Active CN109678769B (en) 2019-02-14 2019-02-14 Method for producing methionine metal chelate by comprehensively utilizing methionine crystallization mother liquor

Country Status (1)

Country Link
CN (1) CN109678769B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111606335A (en) * 2020-05-27 2020-09-01 天宝动物营养科技股份有限公司 Method for comprehensively utilizing clean potassium salt-containing mother liquor
CN111978221A (en) * 2020-08-18 2020-11-24 宁夏紫光天化蛋氨酸有限责任公司 Preparation method of feed additive DL-methionine complex copper
CN114249352A (en) * 2020-09-25 2022-03-29 沈阳化工研究院有限公司 Method for treating wastewater generated in production of 6-methoxy tetralone

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101602700A (en) * 2008-06-09 2009-12-16 住友化学株式会社 Produce the method for methionine(Met)
CN102399177A (en) * 2010-09-15 2012-04-04 李宽义 Environment-friendly and clean process method for continuous synthesis of methionine
CN102702050A (en) * 2011-03-28 2012-10-03 住友化学株式会社 Process for producing methionine
CN103224461A (en) * 2013-04-22 2013-07-31 广州天科生物科技有限公司 Preparation method and application of large-particle crystal form methionine metal chelate
CN104058844A (en) * 2014-06-09 2014-09-24 李学春 Method for preparing multielement chelate fertilizer by use of threonine mother liquor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101602700A (en) * 2008-06-09 2009-12-16 住友化学株式会社 Produce the method for methionine(Met)
CN102399177A (en) * 2010-09-15 2012-04-04 李宽义 Environment-friendly and clean process method for continuous synthesis of methionine
CN102702050A (en) * 2011-03-28 2012-10-03 住友化学株式会社 Process for producing methionine
CN103224461A (en) * 2013-04-22 2013-07-31 广州天科生物科技有限公司 Preparation method and application of large-particle crystal form methionine metal chelate
CN104058844A (en) * 2014-06-09 2014-09-24 李学春 Method for preparing multielement chelate fertilizer by use of threonine mother liquor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111606335A (en) * 2020-05-27 2020-09-01 天宝动物营养科技股份有限公司 Method for comprehensively utilizing clean potassium salt-containing mother liquor
CN111978221A (en) * 2020-08-18 2020-11-24 宁夏紫光天化蛋氨酸有限责任公司 Preparation method of feed additive DL-methionine complex copper
CN114249352A (en) * 2020-09-25 2022-03-29 沈阳化工研究院有限公司 Method for treating wastewater generated in production of 6-methoxy tetralone
CN114249352B (en) * 2020-09-25 2023-07-28 沈阳化工研究院有限公司 Method for treating wastewater generated in production of 6-methoxy tetralone

Also Published As

Publication number Publication date
CN109678769B (en) 2024-04-19

Similar Documents

Publication Publication Date Title
CN109678769A (en) A method of comprehensive utilization methionine crystalline mother solution produces methionine metal chelate
CN109678768A (en) A method of methionine metal chelate is produced using methionine crystalline mother solution
CN104041675A (en) Simple preparation method for amino acid microelement chelate
CN110294698A (en) A kind of production method and device of novel environmentally protective methionine hydroxy analog complexing metal salt
CN110143899A (en) A kind of production method and device of the methionine complexing metal salt of clean and environmental protection
CN107118115B (en) Preparation method of ferrous glycinate chelate
CN103145823A (en) Method for preparing feather protein by alkali hydrolysis of animal hairs
US1867357A (en) Method of making coper hydroxide
CN106721058A (en) A kind of feed Chelates of Amino Acids And Trace Elements
CN101786962B (en) Method for producing amino acid chelate iron
CN102060274B (en) Sodium selenite production method
CN111171334A (en) Method for preparing sodium humate from high-calcium magnesium ore source
CN114455631B (en) Environment-friendly method for purifying, desulfurizing and deironing metatitanic acid
CN101531582A (en) Method for preparing sodium diacetate by industrial waste
CN104195331A (en) Method for preparing high-purity manganese sulfate through extracting low-grade pyrolusite by using rice straw
CN110250318B (en) Preparation method of selenium-rich soybean protein
CN113105352A (en) Method for preparing food-grade and feed-grade zinc glycinate and implementation device thereof
CN103833563A (en) Method for increasing yield of iminodiacetic acid
CN103101934A (en) Method for preparing high-purity lithium carbonate
CN112479866B (en) Method for co-producing citric acid complex calcium, malic acid complex calcium and fruit acid chelate calcium products
CN101153006A (en) Gluconic acid cobalt and method of preparing the same
CN221071048U (en) Calcium magnesium liquid processing production system
CN115353472B (en) Copper methionine chelate as well as preparation method and application thereof
CN103497133A (en) Method for preparing N-methylol group-D,L-calcium methionine microelement chelates by means of saponification liquid produced through D,L- methionine
CN115072762B (en) Preparation method of basic copper chloride crystal

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Country or region after: China

Address after: 675000 salon village, Qinfeng Town, Lufeng County, Chuxiong Yi Autonomous Prefecture, Yunnan Province

Applicant after: Tianbao Animal Nutrition Technology Co.,Ltd.

Address before: 675000 salon village, Qinfeng Town, Lufeng County, Chuxiong Yi Autonomous Prefecture, Yunnan Province

Applicant before: LUFENG TIANBAO PHOSPHORUS CHEMICAL Co.,Ltd.

Country or region before: China

GR01 Patent grant
GR01 Patent grant