165 results about "Ammonium glufosinate" patented technology

The invention discloses a glufosinate-ammonium production waste gas treatment device and method, and relates to the technical field of waste gas treatment.The glufosinate-ammonium production waste gas treatment device comprises an adsorption mechanism, an air pipeline and a heating decomposition mechanism, and the adsorption mechanism comprises an adsorption disc and a power structure driving the adsorption disc to rotate; the adsorption disc comprises a plurality of annularly distributed adsorption units; the air pipeline wraps one side of the adsorption disc to form an adsorption area, and the adsorption area is used for adsorbing and filtering pollutants in waste gas in the air pipeline; the heating decomposition mechanism wraps the other side of the adsorption disc to form a desorption area, and the desorption area is used for releasing the adsorbed pollutants from the adsorption unit, decomposing the adsorbed pollutants into harmless substances and recovering the activity of the adsorption unit; the adsorption disc is driven by the power structure to continuously rotate, so that the dynamic switching between the adsorption area and the desorption area is realized, and the continuous operation of waste gas treatment is realized. Dynamic switching between the adsorption area and the desorption area is achieved, pollutants are efficiently captured by adsorption particles in the adsorption unit, shutdown is not needed, and the requirement for continuous operation of glufosinate-ammonium production is met.

The present disclosure relates to processes for the preparation of glufosinate-ammonium or derivatives thereof. In particular, the present disclosure relates to a process for the preparation of glufosinate-ammonium of formula (I) or a salt, enantiomer or a mixture of all proportions of enantiomers thereof, said process comprising preparing a compound of formula (III) from a compound of formula (II) or a salt, enantiomer or a mixture of all proportions of enantiomers thereof; and preparing glufosinate-ammonium as shown in the formula (I) or salts, enantiomers or a mixture of enantiomers in all proportions from the compound as shown in the formula (III). # imgabs0 #

The invention relates to the field of bioengineering, in particular to a mutant, an expression vector, a host and application thereof. The invention provides application of a mutation site as a target spot in preparation of alpha keto acid and / or L-glufosinate-ammonium. The mutation sites comprise one or more of the 52nd site, the 54th site, the 56th site, the 58th site, the 217th site, the 354th site and the 355th site of the D-amino acid oxidase. According to the invention, an active pocket of D-amino acid oxidase is modified, and a D-amino acid oxidase single-point or multi-point combined mutant with significantly enhanced catalytic activity on a catalytic substrate DL-glufosinate-ammonium is screened through multiple rounds of iterative saturated mutation. By utilizing the D-amino acid oxidase mutant provided by the invention, kinetic resolution of racemic glufosinate-ammonium is realized, and the D-amino acid oxidase mutant can be widely applied to production and application of L-glufosinate-ammonium.

A transgenic cotton event, Gh_CSM63718, is provided. Transgenic plant cells, plant parts, plants, seeds, progeny plants, and agricultural and commodity products containing event Gh_CSM63718 are also provided. Recombinant DNA molecules unique to the event Gh_CSM63718, and methods of using and detecting Gh_CSM63718 are also provided. Cotton plants containing the event Gh_CSM63718 exhibit tolerance to glufosinate, B-triketone HPPD inhibitors, dicamba, glyphosate, PPO inhibitors, and combinations of any thereof.

The invention discloses a monocotyledon anti-glufosinate-ammonium herbicide gene, a protein, a method and application, the nucleotide sequence of the monocotyledon anti-glufosinate-ammonium herbicide gene is shown as SEQ ID NO.1, the mutation site of the gene is single base substitution, and the position of the mutation site is LOCOs04g56170 gene; the amino acid sequence coded by the nucleotide sequence SEQ ID NO. 1 is as shown in SEQ ID NO. 2. A new rice germplasm resistant to glufosinate-ammonium herbicide is obtained through experiments, by spraying glufosinate-ammonium, it is confirmed that rice containing the mutant protein has glufosinate-ammonium resistance after glufosinate-ammonium is applied, and the conservative property of the mutant protein is verified in a hybridization mode.

The invention relates to a corn transformation event MN85zN-Ex nucleic acid molecule and a detection method. The corn transformation event MN85zN-Ex nucleic acid molecule comprises a sequence shown in SEQ ID NO: 1 or a reverse complementary sequence thereof, or a sequence shown in SEQ ID NO: 2 or a reverse complementary sequence thereof. The corn transformation event MN85zN-Ex has the characteristics of insect resistance and glufosinate-ammonium herbicide resistance, and the detection method can accurately and quickly identify whether a biological sample contains the DNA molecule of the transgenic corn event MN85zN-Ex or not.

The present application belongs to the field of pesticides, and particularly relates to a herbicidal composition containing a fused ring substituted aromatic compound and application thereof. The composition comprises a herbicidally effective amount of active ingredient A and active ingredient B, wherein the active ingredient A is or a salt / ester thereof; the active ingredient B is selected from one or more of the following compounds and salts / esters thereof: glyphosate, glufosinate-ammonium, glufosinate-P, paraquat, diquat, ACCase inhibitors, PPO inhibitors, etc. The composition can effectively control / eliminate grass weeds and broadleaf weeds, etc., and has the characteristics of expanding the herbicidal spectrum, reducing the application amount, being able to produce a synergistic effect and solving the problem of resistant weeds, etc.

According to the glufosinate-ammonium mother liquor decolorizing device provided by the invention, the glufosinate-ammonium mother liquor is decolorized by arranging the resin adsorption device, and the resin column in the resin adsorption device is filled with the resin, so that the glufosinate-ammonium mother liquor decolorizing device has the characteristics of large treatment capacity, easiness in regeneration and high cyclic utilization rate during decolorizing; the problems that the amount of generated hazardous waste is large and the hazardous waste is not easy to treat due to the fact that the usage amount is large and regeneration is not easy after adsorption saturation when activated carbon is adopted for decolorizing glufosinate-ammonium mother liquor wastewater in the prior art are solved. A first resin column and a second resin column in the resin adsorption device are connected with the mother liquor storage tank, the decolorizing mother liquor storage tank, the backflushing liquid storage tank and the solvent storage tank through a plurality of valves respectively, and the other resin column can continue to work when the first resin column or the second resin column is subjected to backflushing regeneration through control of the valves; and the continuous decoloring process is effectively ensured.

The invention discloses an optically active glufosinate-lysine salt with a structure as shown in a formula (I-IV) as shown in the specification. The invention also discloses a method for preparing the optically active glufosinate-lysine salt, which comprises the following steps: taking D, L-glufosinate or a salt thereof as a raw material, taking D-lysine or L-lysine as a resolving agent, and taking D-lysine or L-lysine as a resolving agent to obtain the optically active glufosinate-lysine salt. And obtaining the L-glufosinate-D-lysine salt, the D-glufosinate-D-lysine salt, the L-glufosinate-L-lysine salt or the D-glufosinate-L-lysine salt through a resolution reaction, crystallization and filtration in a suitable resolving agent system. The D-glufosinate-D-lysine salt or the L-glufosinate-L-lysine salt is prepared by taking the D-glufosinate-D-lysine salt as a resolution solvent of an anhydrous system; and the L-glufosinate-D-lysine salt or the D-glufosinate-L-lysine salt is prepared by using a resolution solvent as an aqueous system.

The present disclosure relates to a method for preparing glufosinate-ammonium or its derivatives.

A process for making L-glufosinate, the process comprising the following steps: a) reacting a compound according to formula (I), (I), wherein R1 is hydrogen, (C1-C12)-alkyl, (C1-C12)-haloalkyl, (C6-C10)-aryl, (C6-C10)-haloaryl, (C7-C10)-aralkyl, (C7-C10)-haloaralkyl, (C4-C10)-cycloalkyl, or (C4-C10)-halocycloalkyl, with a compound according to formula (II), (II), wherein R2 and R3 are independently from each other (C1-C8)-acyloxy, (C1-C8)-alkoxy or hydroxy, or R2 and R3 form together an epoxide group or an ethylene carbonate group, and optional subsequent acidic treatment to form a diol according to formula (III), (III), b) Oxidizing the diol according to formula (III) to form 2-oxo-4-(hydroxy(methyl)phosphinoyl)butyric acid (PPO); and c) aminating the PPO to L-glufosinate.

The invention discloses a kind of crystal formation of L glufosinate ammonium salt and preparation method thereof, the X-ray diffraction pattern of the crystal formation of L glufosinate ammonium salt includes 10.696 ± 0.2 °, 18.34 ± 0.2 °, 18.598 ± 0.2 °, 20.185 ± 0.2 °, 21.893 ± 0.2 ° and 32.428 ± 0.2 ° 2θ at least one characteristic peak, after testing, the crystal formation of this L glufosinate ammonium salt is stored 10 days at room temperature under humidity 65%, mass change is all below 0.5%, without obvious hygroscopicity, and crystal formation has no obvious change, which is conducive to it keeping dry during storage and use, avoids deterioration or activity reduction due to humidity. Meanwhile, the crystal formation performs well in stability test, and after long-term storage, crystal structure also does not change. This high stability ensures the lasting effectiveness of the crystal formation of L glufosinate ammonium salt in herbicidal drug products.

The invention relates to the technical field of pesticide production, and particularly discloses a preparation process of glufosinate-ammonium intermediate 3-(methyl hydroxyl phosphonyl) propionaldehyde. The preparation method comprises the following steps: 1, carrying out addition reaction on diethyl methylphosphonite and acrylic acid in absolute ethyl alcohol to generate 3-[ethyoxyl (methyl) phosphonyl] propionate; in the second step, 3-[ethyoxyl (methyl) phosphonyl] propionate is subjected to a hydrosilylation reaction in an oriented mode, and 3-triethyl siloxy-3-ethyoxyl propyl methyl ethyl phosphonate is generated; and 3, carrying out a simple dilute acid hydrolysis reaction to obtain the 3-(methyl hydroxyl phosphonyl) propionaldehyde. According to the method, a three-step reaction route of addition-hydrosilylation-hydrolysis is adopted, and the acrylic acid is used for replacing the traditional high-toxicity raw material acrolein, so that the toxicity risk is avoided from the source, the yield of the target glufosinate-ammonium intermediate is remarkably improved, the total yield of the three-step reaction can reach 95% or above, and the method is suitable for industrial production. And an efficient and green brand-new technical scheme is provided for large-scale production of glufosinate-ammonium.

The invention discloses a method for synthesizing L-glufosinate-ammonium by using whole cells as a catalyst. The method comprises the following step: carrying out cell catalytic reaction in a water phase system containing microbial cells, L-homoserine and / or activated L-homoserine and a phosphorus donor compound to prepare the L-glufosinate-ammonium. According to the present invention, the microbial cells are adopted as the catalyst, the L-homoserine and / or the activation form thereof are / is adopted as the raw material to directly synthesize the L-glufosinate-ammonium in the pure water system, and the method has advantages of high selectivity, high catalysis efficiency, good stability, cell recycling and the like.

The invention relates to the technical field of pesticides, and particularly discloses a dispersible oil suspending agent containing refined glufosinate-ammonium and a preparation method of the dispersible oil suspending agent. The invention relates to a dispersible oil suspending agent containing refined glufosinate-ammonium. The dispersible oil suspending agent comprises the following raw materials in percentage: 10-15% of a compound of flumioxazin and refined glufosinate-ammonium, 10-15% of an emulsifier, 1-3% of a dispersing agent, 2-5% of a stabilizer, 0.3-0.8% of a thickening agent, 3-5% of an anti-settling agent, 1-5% of an anti-drifting agent and the balance of oily filler, the flumioxazin and the fine glufosinate-ammonium are adopted as main active pharmaceutical ingredients of the suspending agent, the two agents with different action mechanisms and different action modes can complement each other in advantages, the quick-acting property and the persistence of the agent are enhanced, meanwhile, the development of drug resistance of weeds can be effectively overcome or delayed, and the control effect is improved.

The application provides a genetic transformation method of sugarcane variety Liucheng 1541 and belongs to the technical field of plant genetic engineering. The genetic transformation method is that leaf tissues of the sugarcane variety Liucheng 1541 are induced and cultured on a callus induction culture medium containing 2,4-dichlorophenoxyacetic acid and 6-benzylaminopurine; the obtained embryogenic callus is infected by agrobacterium; after co-cultivation and recovery culture, the obtained recovered callus is transferred to a screening culture medium containing glufosinate ammonium for screening culture; then the screened resistant embryogenic callus is inoculated on a differentiation culture medium containing glufosinate ammonium for differentiation culture; and after rooting culture, the transgenic plant of Liucheng 1541 is obtained. The method improves the embryogenic callus induction rate, solves the problem of callus browning in the tissue culture process of the variety Liucheng 1541, determines the glufosinate ammonium screening concentration of the embryogenic callus, and establishes the genetic transformation system of Liucheng 1541.

The application discloses a preparation method of ammonium glufosinate, which comprises the following steps: adding diethyl malonate and liquid bromine into a first solvent to react to obtain intermediate I; adding the intermediate I, potassium phthalimide and a quaternary ammonium salt catalyst into toluene to react to obtain intermediate II; adding the intermediate II, potassium carbonate, 1,2-dibromoethane and a phase transfer catalyst into a second solvent to react to obtain intermediate III; adding the intermediate III and diethyl methyl phosphonite into toluene to react under argon to obtain intermediate IV; adding the intermediate IV into hydrochloric acid to react under reflux; cooling, precipitation, drying to obtain intermediate V; mixing the intermediate V with water, passing in ammonia and adjusting pH value; adding methanol and stirring to react; cooling, filtering and drying to obtain ammonium glufosinate. The method can avoid using sodium cyanide or hydrocyanic acid, and no large amount of difficult-to-separate ammonium chloride is generated, the content of the obtained ammonium glufosinate is 90% to 98%, and the total yield is greater than 68%.

The present invention relates to a process for the preparation of glufosinate comprising the steps of hydrolyzing an N-carbamoyl glufosinate amide with an amidase to form an N-carbamoyl amino acid compound followed by cleavage of the carbamoyl moiety of the N-carbamoyl amino acid compound.

Compositions and methods for the production of L-glufosinate are provided. The method involves converting racemic glufosinate to the L-glufosinate enantiomer or converting PPO to L-glufosinate in an efficient manner. In particular, the method involves the specific amination of PPO to L-glufosinate, using L-glutamate, racemic glutamate, or another amine source as an amine donor. PPO can be obtained by the oxidative deamination of D-glufosinate to PRO (2-oxo-4-(hydroxy (methyl) phosphinoyl) butyric acid) or generated via chemical synthesis. PPO is then converted to L-glufosinate using a transaminase in the presence of an amine donor. When the amine donor donates an amine to PPO. L-glufosinate and a reaction by product are formed. Because the PPO remaining represents a yield loss of L-glufosinate, it is desirable to minimize the amount of PPO remaining in the reaction mixture. Degradation, other chemical modification, extraction, sequestration, binding, or other methods to reduce the effective concentration of the by-product. i.e., the corresponding alpha ketoacid or ketone to the chosen amine donor will shift the reaction equilibrium toward L-glufosinate, thereby reducing the amount of PPO and increasing the yield of L-glufosinate. Therefore, the methods described herein involve the conversion or elimination of the alpha ketoacid or ketone by-product to another product to shift the equilibrium towards L-glufosinate.

The invention discloses a method for purifying refined glufosinate-ammonium, which belongs to the technical field of refined glufosinate-ammonium production, and is characterized in that during crystallization, a solvent is added into a crystallization system for multiple times at different temperatures so as to reduce the crystal nucleus generation speed in the crystallization process, and meanwhile, sufficient time is given to enable crystals to grow, so that the purity of the refined glufosinate-ammonium is improved. The refined glufosinate-ammonium hydrate solid with more regular refined glufosinate-ammonium crystals, higher crystallization rate and lower impurity content is obtained; ultrasonic waves are introduced in the refined glufosinate-ammonium crystallization process, on one hand, crystal nucleation can be promoted, the width of a crystallization metastable region is reduced, meanwhile, the particle size distribution of refined glufosinate-ammonium crystals can be narrowed, the efficiency during solid-liquid separation is higher, on the other hand, the ultrasonic waves can prevent crystal coalescence, the product has a better crystal form and higher product purity, and finally, the purity of the product is improved. The ultrasonic waves can provide energy to destroy hydrogen bonds of the refined glufosinate-ammonium crystalline hydrate, so that refined glufosinate-ammonium without crystal water is obtained, and the product purity is higher.

The invention provides a preparation method of refined glufosinate-ammonium salt soluble granules, which comprises the following steps: S1, crushing raw powder: crushing refined glufosinate-ammonium salt raw powder to obtain crushed raw powder; s2, jet milling: performing rotary cutting and drying on the crushed raw powder by using hot nitrogen, and performing cyclone separation to obtain dry powder; s3, raw material pretreatment: mixing the dry powder with a compound additive and water to form slurry, and adding a pH regulator to adjust the pH of the slurry; and S4, high-tower mixing granulation: atomizing the slurry through a nozzle at the top of a granulation tower, enabling the formed particles to freely fall to the bottom of the granulation tower, and carrying out whole-particle screening to obtain the refined glufosinate-ammonium salt soluble granules. The invention solves the problems of poor stability of active ingredients, strong hygroscopicity of particles, poor solubility, discontinuous production and the like in the prior art.

The present application relates to a kind of methods for preparing L-glufosinate ammonium salt by continuous bioconversion.The method comprises: (1) L-amino acid dehydrogenase wet bacteria and coenzyme regeneration enzyme wet bacteria are mixed, are treated by cell breaking, and solid bacterial residue is separated and removed, to obtain the aqueous solution containing L-amino acid dehydrogenase and coenzyme regeneration enzyme;(2) NAD + And raw material for NAD + / NADH cycle, to obtain biological catalyst solution;(3) PPO aqueous solution is reacted with ammonia solution, then the neutralization reaction liquid is reacted with the biological catalyst solution into microchannel reactor, to obtain the conversion liquid containing L-glufosinate ammonium salt.The present application realizes the continuous efficient conversion of PPO by cell breaking and impurity removing pretreatment and microchannel reaction, shortens reaction time, improves the space-time yield and conversion yield of L-glufosinate ammonium salt, and reduces the production of byproduct.

The invention discloses a method for preparing refined glufosinate-ammonium from glufosinate-ammonium crystallization mother liquor. The method comprises the following steps: (1) desalting the glufosinate-ammonium crystallization mother liquor to 1-3% through electrodialysis; (2) carrying out adsorption decolorization treatment on the mother liquor by using activated carbon; and (3) adjusting the pH value of the treated mother liquor to 7.0-8.0, and dissolving and mixing enzymes and auxiliary materials required by the reaction with deionized water. Adding the treated mother liquor into enzyme and auxiliary materials, introducing oxygen to react at the temperature of 30-40 DEG C, starting to feed glufosinate-ammonium crystallization mother liquor after reacting for 2-4 hours, stopping feeding when the total concentration of glufosinate-ammonium reaches 15-25%, and continuing reacting until the chiral purity gt of L-glufosinate-ammonium is obtained; the concentration of the intermediate PPO is 1t; when the concentration is 1mg / mL, the reaction is terminated. According to the method, the process is simple, special equipment is not needed, the glufosinate-ammonium in the glufosinate-ammonium crystallization mother liquor can be directly converted into the refined glufosinate-ammonium, the chiral purity of the recovered refined glufosinate-ammonium can reach 99% or above, and the method has wide industrial application prospects.

The invention discloses a mutant of glutamate dehydrogenase derived from clostridium symbiosum, and an application of the mutant in synthesis of L-glufosinate-ammonium, and particularly discloses a mutant of glutamate dehydrogenase derived from clostridium symbiosum and an application of the mutant in synthesis of L-glufosinate-ammonium. According to the invention, single-site or multi-site mutation is carried out on wild-type glutamate dehydrogenase derived from clostridium symbiotic as shown in SEQ ID NO.1 by virtue of a mutation transformation method which is designed by carrying out rational analysis on amino acid residues in a binding pocket of glutamate dehydrogenase and a substrate, a geometrical shape in a molecular tunnel and interaction of domains in a structural domain; according to the obtained single-site or multi-site mutant, the catalytic activity to 2-carbonyl-4-(hydroxymethylphosphonyl) butyric acid is remarkably improved, and the mutant has an application prospect in preparation of L-glufosinate-ammonium through biological catalysis.

The present application provides a kind of complex herbicide containing glufosinate-ammonium, which includes effective component and auxiliary material, and the effective component includes glufosinate-ammonium and fluroxypyr-methyl at a mass ratio of 0.5-10:1.The complex herbicide of the present application forms a mutual synergistic effect between glufosinate-ammonium and fluroxypyr-methyl, and the price of fluroxypyr-methyl is significantly lower than that of glufosinate-ammonium raw material.Compared with the same amount of glufosinate-ammonium herbicide, the complex herbicide of the present application can reduce the cost of drug use while improving the weed control effect, and can reduce the drug resistance of weeds to glufosinate-ammonium.The present application also optimizes the formula of different dosage forms, selects the auxiliary material and the components of the complex, uses fewer types of auxiliary materials while ensuring the efficacy of the preparation, and the auxiliary materials are commonly available and can further reduce the cost, so that the complex herbicide of the present application has higher market promotion value and economic benefits.

The invention relates to the technical field of pesticides, in particular to a fine glufosinate-ammonium salt solid preparation and a preparation method thereof.The fine glufosinate-ammonium salt solid preparation is prepared from, by mass, 50-80% of fine glufosinate-ammonium salt slurry, 20-30% of adsorbent and 20-30% of anti-bonding agent. 1-50% of an adsorbent; 1-30% of an anti-adhesive agent; and 0-1% of a defoaming agent. According to the method, the refined glufosinate-ammonium salt slurry is directly used as the raw material for granulation, the complex process and cost of preparing the refined glufosinate-ammonium salt into crystals or other intermediates for re-granulation are abandoned, the production steps are reduced, the generation and emission of pollutants such as waste water and waste residues are correspondingly reduced, the pressure on the environment is reduced, and the method meets the environmental protection requirement.

The invention provides a high-specificity rapid detection method and detector for chiral glufosinate-ammonium pesticide, and the method comprises the following steps: reacting a target solution with a target probe molecule with a target concentration in dimethyl sulfoxide, determining that the target solution is a chiral glufosinate-ammonium solution when a preset reaction requirement is met, and determining that the target solution is a chiral glufosinate-ammonium solution when the preset reaction requirement is met; collecting at least one first digital image after reaction under the target condition; extracting a first RGB value from the at least one first digital image; according to the first RGB value, the ratio between pixel intensity statistical values of the first target color channel is determined, and the pixel intensity statistical values of the first target color channel are pixel intensity statistical values of two color channels selected from an R channel, a G channel and a B channel; and inputting the ratio between the pixel intensity statistical values of the first target color channel into a pre-constructed concentration prediction model to obtain the predicted concentration of the chiral glufosinate-ammonium solution. By implementing the method, the requirements of high specificity and rapidness of chiral glufosinate-ammonium pesticide detection can be met.

The present invention discloses an L - amino acid dehydrogenase mutant, its coding gene, a genetically engineered bacterium and their applications in the preparation of L - glufosinate. The L - amino acid dehydrogenase mutant includes: a mutant obtained by replacing V at the 354th position with G using the wild - type L - amino acid dehydrogenase shown in SEQ ID NO.1 as a template; a mutant obtained by replacing A at the 152nd position with G; a mutant formed by the combined mutation at the 152nd and 354th positions; a mutant formed by the combined mutation of N at the 156th position mutated to A with the 152nd and 354th positions. Through molecular modification, the present invention obtains a class of L - amino acid dehydrogenase mutants with high enzyme activity in the process of catalyzing 2 - oxo - 4 - (hydroxymethylphosphinyl) butyric acid to prepare L - glufosinate. When using whole cells to convert 500 mM substrate PPO, the substrate conversion rate can reach more than 99% within 4 hours, showing strong industrial application prospects.

The invention relates to the technical field of herbicides, and particularly discloses a microemulsion containing glufosinate-ammonium, quizalofop-p-ethyl and fluoroglycofen as well as a preparation method and application of the microemulsion. The invention discloses a microemulsion containing glufosinate-ammonium, quizalofop-p-ethyl and fluoroglycofen as well as a preparation method and application of the microemulsion. The microemulsion comprises the following raw materials in percentage by weight: 21-25% of effective active ingredients, 16-23% of an emulsifier, 6-9% of a dispersant, 18-22% of an organic solvent, 4-6% of suspension microcapsules and the balance of water, wherein the effective active components comprise glufosinate-ammonium, quizalofop-p-ethyl and fluoroethyl; in addition, the preparation method provided by the invention has the advantages that the herbicide is efficient and environment-friendly.

The invention belongs to the technical field of preparation of aluminum-containing compounds, and particularly discloses a method for preparing aluminum hydroxide with high specific surface area based on sodium tetrachloroaluminate. The preparation method comprises the following steps: mixing a sodium tetrachloroaluminate raw material (sodium tetrachloroaluminate solid waste residue as a byproduct in production of glufosinate-ammonium or methyl phosphorus dichloride) with water to obtain a mixed solution; mixing the mixed solution with alkali liquor, and reacting to obtain reaction liquid containing aluminum hydroxide; and sequentially aging, separating and washing to obtain the aluminum hydroxide with high specific surface area. The obtained aluminum hydroxide is a porous material, the specific surface area reaches 300 m < 2 > / g or above, the microstructure is a sheet / block nanoparticle combination, and the aluminum hydroxide has good dispersity and activity and can be used in the fields of catalyst carriers, adsorbents, flame retardants and the like. The method is simple in process and does not involve complex equipment and high energy consumption conditions; and when the treated object is industrial solid waste residue, the method has the advantages of high aluminum recovery rate, thorough impurity removal and no influence of phosphorus.