CN117603039A - Synthesis method of copper acetate - Google Patents
Synthesis method of copper acetate Download PDFInfo
- Publication number
- CN117603039A CN117603039A CN202311338757.7A CN202311338757A CN117603039A CN 117603039 A CN117603039 A CN 117603039A CN 202311338757 A CN202311338757 A CN 202311338757A CN 117603039 A CN117603039 A CN 117603039A
- Authority
- CN
- China
- Prior art keywords
- reaction
- copper
- copper acetate
- waste liquid
- acetic acid
- 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.)
- Pending
Links
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 title claims abstract description 80
- 238000001308 synthesis method Methods 0.000 title claims abstract description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims abstract description 157
- 238000006243 chemical reaction Methods 0.000 claims abstract description 104
- 239000007788 liquid Substances 0.000 claims abstract description 85
- 239000002699 waste material Substances 0.000 claims abstract description 79
- 238000000034 method Methods 0.000 claims abstract description 29
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 21
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims abstract description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 48
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 36
- 229910001431 copper ion Inorganic materials 0.000 claims description 36
- 239000003513 alkali Substances 0.000 claims description 25
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 22
- 239000005751 Copper oxide Substances 0.000 claims description 22
- 229910000431 copper oxide Inorganic materials 0.000 claims description 22
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 18
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 18
- 239000012295 chemical reaction liquid Substances 0.000 claims description 16
- 239000007800 oxidant agent Substances 0.000 claims description 14
- 230000001590 oxidative effect Effects 0.000 claims description 13
- 239000002351 wastewater Substances 0.000 claims description 13
- 239000002253 acid Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 9
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 9
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 9
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 239000000706 filtrate Substances 0.000 claims description 7
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- 239000000376 reactant Substances 0.000 claims description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 229910002651 NO3 Inorganic materials 0.000 claims description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 3
- 239000011790 ferrous sulphate Substances 0.000 claims description 3
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 3
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 23
- 239000010949 copper Substances 0.000 abstract description 23
- 229910052802 copper Inorganic materials 0.000 abstract description 23
- 238000004519 manufacturing process Methods 0.000 abstract description 23
- 238000003912 environmental pollution Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 229960000583 acetic acid Drugs 0.000 description 46
- 239000000243 solution Substances 0.000 description 31
- 238000002360 preparation method Methods 0.000 description 10
- 239000000047 product Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 239000011259 mixed solution Substances 0.000 description 6
- 238000004065 wastewater treatment Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 239000002585 base Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012452 mother liquor Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 description 2
- 239000005750 Copper hydroxide Substances 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- 229910001956 copper hydroxide Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000012362 glacial acetic acid Substances 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000001632 sodium acetate Substances 0.000 description 2
- 235000017281 sodium acetate Nutrition 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- LTXPJHHNLLTWOH-UHFFFAOYSA-L [Cu].[Cu](O)O Chemical compound [Cu].[Cu](O)O LTXPJHHNLLTWOH-UHFFFAOYSA-L 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- NWFNSTOSIVLCJA-UHFFFAOYSA-L copper;diacetate;hydrate Chemical compound O.[Cu+2].CC([O-])=O.CC([O-])=O NWFNSTOSIVLCJA-UHFFFAOYSA-L 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000001640 fractional crystallisation Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/41—Preparation of salts of carboxylic acids
- C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention relates to a method for synthesizing copper acetate, which fully utilizes valuable resources in waste, takes copper in microetching waste liquid as a copper source, utilizes acetic acid resources in acetic acid waste liquid to provide acetate ions, reasonably controls each reaction step to prepare a copper acetate product with high added value, well realizes the cooperative treatment and comprehensive utilization of the two wastes of the microetching waste liquid and the acetic acid waste liquid, effectively reduces the production cost, reduces the environmental pollution, saves the resources and improves the economic benefit. Meanwhile, the copper acetate has high purity, good fluidity and good clarity, and has better product quality. In addition, the synthesis method can be used for reaction at normal temperature and normal pressure, so that the production energy consumption can be further reduced, and the production cost is saved.
Description
Technical Field
The invention relates to the technical field of industrial wastewater treatment, recovery and reuse, in particular to a method for synthesizing copper acetate by taking microetching waste liquid and acetic acid waste liquid as raw materials.
Background
Copper acetate, also known as copper acetate, has been widely used as analytical reagents, organic synthesis catalysts, paint quick-drying agents, pesticide auxiliaries, enamel pigment raw materials and the like, and has great market demands.
In recent years, the circuit board manufacturing industry is actively developed, but the capacity of the circuit board manufacturing industry is increased year by year, and simultaneously, the waste liquid discharge amount of each procedure in the circuit board production process is also increased year by year, so that great environmental pollution and resource waste are caused. Wherein, the microetching process can generate a large amount of microetching waste liquid, and the waste liquid has low copper ion content, high oxidant content, high Chemical Oxygen Demand (COD) and great recovery treatment difficulty. Meanwhile, the treatment method of acetic acid waste liquid generated in the current industrial production mainly comprises adding liquid alkali to deposit copper, so that an industrial copper oxide product is prepared, the added value of the product is low, and a large amount of acetic acid in mother liquor is wasted.
Disclosure of Invention
Based on the above, it is necessary to provide a method for synthesizing copper acetate, which uses copper in microetching waste liquid as copper source, provides acetate ions by using acetic acid resources in the acetic acid waste liquid, and prepares copper acetate with high added value, and simultaneously reduces environmental pollution, saves resources, improves economic benefit, reduces production cost, and realizes efficient recycling of microetching waste liquid and acetic acid waste liquid.
The invention provides a method for synthesizing copper acetate, which comprises the following steps:
carrying out a first reaction on the microetching waste liquid and acid to prepare a first reaction liquid;
carrying out a second reaction on the first reaction liquid, a reducing agent and alkali to prepare a second reaction liquid;
mixing the second reaction liquid with acetic acid waste liquid, performing a third reaction with alkali, performing solid-liquid separation on the obtained reactant, and collecting copper acetate solids;
the molar ratio of copper ions to acetate ions in the solution obtained by mixing the second reaction solution and the acetic acid waste solution is 1: (2-5);
in the third reaction, the alkali is added to enable the pH value of the reaction system to be 3.5-5.5.
In some of these embodiments, the microetching waste fluid comprises at least one of the following features:
(1) The copper ion content is 20 g/L-30 g/L;
(2) The content of the oxidant is 5 g/L-10 g/L; optionally, the oxidant comprises one or more of hydrogen peroxide and persulfate;
(3) The chemical oxygen demand is 1 g/L-3 g/L.
In some of these embodiments, the acetic acid waste stream comprises at least one of the following features:
(1) The copper ion content is 5 g/L-15 g/L;
(2) The mass percentage of the acetic acid is 20% -30%.
In some of these embodiments, the first reaction satisfies at least one of the following conditions:
(1) The acid is selected from one or more of sulfuric acid, hydrochloric acid and nitric acid;
(2) Adding the acid to enable the pH value of the reaction system to be 0-1.5;
(3) The time of the first reaction is 1-2 h;
(4) The temperature of the first reaction is normal temperature.
In some of these embodiments, the first reaction further includes a step of adjusting the copper ion content, the step of adjusting the copper ion content including:
copper oxide is added into the microetching waste liquid, so that the copper ion content in the obtained solution is 40 g/L-60 g/L.
In some of these embodiments, the second reaction satisfies at least one of the following conditions:
(1) The reducing agent is selected from one or more of ferrous sulfate, ferrous hydrochloride and ferrous nitrate;
(2) The alkali is selected from one or more of sodium hydroxide, sodium carbonate and sodium bicarbonate;
(3) Adding the alkali to enable the pH value of the reaction system to be 3.0-3.5;
(4) The second reaction time is 2-3 h;
(5) The temperature of the second reaction is normal temperature;
(6) The mass ratio of the reducing agent to the oxidant in the first reaction liquid is 1: (3-5).
In some of these embodiments, the third reaction satisfies at least one of the following conditions:
(1) The alkali is selected from one or more of sodium hydroxide, sodium carbonate and sodium bicarbonate;
(2) The time of the third reaction is 2-3 h;
(3) The temperature of the third reaction is normal temperature.
In some embodiments, the method further comprises a step of post-treating the wastewater obtained by the solid-liquid separation, wherein the post-treating step comprises: adding alkali into the wastewater to perform a fourth reaction, and performing solid-liquid separation on the obtained reactant to prepare copper oxide and filtrate.
In some embodiments, the copper oxide is added to the microetching waste liquid, so that the copper ion content of the obtained solution is 40 g/L-60 g/L.
In some of these embodiments, the step of post-processing satisfies at least one of the following conditions:
(1) The alkali is selected from one or more of sodium hydroxide, sodium carbonate and sodium bicarbonate;
(2) Adding the alkali to enable the pH of the reaction system to be 10-12;
(3) The temperature of the fourth reaction is normal temperature.
Compared with the prior art, the invention has the following beneficial effects:
the invention fully utilizes valuable resources in the waste, reduces environmental pollution, saves resources and improves economic benefit. According to the method, copper in the microetching waste liquid is used as a copper source, acetate ions are provided by utilizing acetic acid resources in the acetic acid waste liquid, and each reaction step is reasonably controlled, so that a copper acetate product with high added value can be prepared, the cooperative treatment and comprehensive utilization of the microetching waste liquid and the acetic acid waste liquid are well realized, and the production cost is effectively reduced. Meanwhile, the copper acetate has high purity, good fluidity, good clarity and excellent product quality.
In addition, the synthesis method can be used for reacting at normal temperature and normal pressure, so that the production energy consumption is further reduced, and the production cost is saved.
Detailed Description
The method for synthesizing copper acetate according to the present invention will be described in further detail with reference to specific examples. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Terminology
Unless otherwise indicated or contradicted, terms or phrases used herein have the following meanings:
herein, "one or more" refers to any one, any two, or any two or more of the listed items.
As used herein, the term "and/or," and/or, "and/or" includes any one of the two or more of the associated listed items and also includes any and all combinations of the associated listed items, including any two or more of the associated listed items, or all combinations of the associated listed items.
Herein, "preferred", "better", etc. are merely embodiments or examples that describe better results, and it should be understood that they do not limit the scope of the invention.
Herein, "further," "still further," "particularly," and the like are used for descriptive purposes and are not to be construed as limiting the scope of the invention.
Herein, "first aspect," "second aspect," "third aspect," "fourth aspect," etc. are for descriptive purposes only and are not to be construed as indicating or implying a relative importance or quantity, nor as implying an importance or quantity of a technical feature being indicated. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for non-exhaustive list of descriptive purposes only and are not to be construed as limiting the number of closed forms. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. In the description of the present invention, the meaning of "several" means at least one, such as one, two, etc., unless specifically defined otherwise.
In the present invention, the numerical ranges are referred to as continuous, and include the minimum and maximum values of the ranges, and each value between the minimum and maximum values, unless otherwise specified. Further, when a range refers to an integer, each integer between the minimum and maximum values of the range is included. Further, when multiple range description features or characteristics are provided, the ranges may be combined. In other words, unless otherwise indicated, all ranges disclosed herein are to be understood to include any and all subranges subsumed therein.
Only a few numerical ranges are specifically disclosed herein. However, any lower limit may be combined with any upper limit to form a range not explicitly recited; and any lower limit may be combined with any other lower limit to form a range not explicitly recited, and any upper limit may be combined with any other upper limit to form a range not explicitly recited. Furthermore, each separately disclosed point or individual value may itself be combined as a lower limit or upper limit with any other point or individual value or with other lower limit or upper limit to form a range not explicitly recited. The use of numerical ranges by endpoints includes all numbers subsumed within that range and any range within that range, e.g., 1 to 5 includes 1, 1.1, 1.3, 1.5, 2, 2.75, 3, 3.80, 4, 5, and the like.
The percentage content referred to in the present invention refers to mass percentage for both solid-liquid mixing and solid-solid mixing and volume percentage for liquid-liquid mixing unless otherwise specified.
The percentage concentrations referred to in the present invention refer to the final concentrations unless otherwise specified. The final concentration refers to the ratio of the additive component in the system after the component is added.
The temperature parameter in the present invention is not particularly limited, and may be a constant temperature treatment or a treatment within a predetermined temperature range. The constant temperature process allows the temperature to fluctuate within the accuracy of the instrument control. The normal temperature in the invention means that no temperature control operation is applied, and generally means 4 ℃ to 35 ℃, preferably 20+/-5 ℃.
In the invention, the technical characteristics described in an open mode comprise a closed technical scheme composed of the listed characteristics and also comprise an open technical scheme comprising the listed characteristics.
The invention provides a method for synthesizing copper acetate, which comprises the following steps:
carrying out a first reaction on the microetching waste liquid and acid to prepare a first reaction liquid;
carrying out a second reaction on the first reaction liquid, a reducing agent and alkali to prepare a second reaction liquid;
mixing the second reaction liquid with acetic acid waste liquid, performing a third reaction with alkali, performing solid-liquid separation on the obtained reactant, and collecting copper acetate solids;
the molar ratio of copper ions to acetate ions in the solution obtained by mixing the second reaction solution and the acetic acid waste solution is 1: (2-5);
in the third reaction, the alkali is added to enable the pH value of the reaction system to be 3.5-5.5.
In one specific example, the molar ratio of copper ions to acetate ions in the solution obtained by mixing the second reaction solution and the acetic acid waste solution is 1: (2-5). It will be appreciated that the molar ratio of copper ions to acetate ions in the solution includes, but is not limited to: 1:2.0, 1:2.1, 1:2.2, 1:2.3, 1:2.4, 1:2.5, 1:2.6, 1:2.7, 1:2.8, 1:2.9, 1:3.0, 1:3.1, 1:3.2, 1:3.3, 1:3.4, 1:3.5, 1:3.6, 1:3.7, 1:3.8, 1:3.9, 1:4.0, 1:4.1, 1:4.2, 1:4.3, 1:4.4, 1:4.5, 1:4.6, 1:4.7, 1:4.8, 1:4.9, 1:5.0. specifically, the molar ratio of copper ions to acetate ions in the solution obtained by mixing the second reaction solution and the acetic acid waste solution is controlled to be 1: (2-5), the defect that the purity of the copper acetate is influenced due to the too high content of copper ions can be avoided.
In one specific example, in the third reaction, the alkali is added to make the pH of the reaction system 3.5 to 5.5. It is understood that the pH of the reaction system of the third reaction includes, but is not limited to: 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5. Specifically, in the third reaction, the pH value of the reaction system is controlled to be 3.5-5.5, so that copper acetate can be precipitated in a solid form, and the problem that copper acetate solid cannot be formed due to too low pH value or copper hydroxide copper sludge is generated due to too high pH value, and the clarity of copper acetate is affected can be avoided.
In a specific example thereof, the microetching waste liquid contains copper ions, an oxidizing agent, chemical oxygen demand, and the like. Specifically, the main chemical components in the microetching waste liquid are shown in table 1.
TABLE 1
In a specific example thereof, the acetic acid waste liquid contains copper ions, acetic acid, and the like, and specifically, the main chemical components of the acetic acid waste liquid are shown in table 2.
TABLE 2
The invention develops a copper acetate synthesis method, which takes copper in microetching waste liquid as a copper source, utilizes acetic acid resources in the acetic acid waste liquid to provide acetate ions, can react at normal temperature and normal pressure to prepare a copper acetate product with high purity, good fluidity, good clarity and high added value, and well realizes the cooperative treatment and comprehensive utilization of the microetching waste liquid and the acetic acid waste liquid while fully utilizing valuable resources in the waste, reducing environmental pollution, saving resources and improving economic benefit, and effectively reduces production cost.
Further, the current synthesis method of copper acetate mainly comprises the following steps: generating crude copper acetate by utilizing the reaction of pure copper, acetic acid and oxidant, and recrystallizing to obtain a copper acetate product; or copper oxide or copper hydroxide reacts with acetic acid to synthesize a copper acetate product, and most of the problems of high production cost, high energy consumption, complex production process and the like exist. If the method provides a production process of copper acetate, pure oxygen is introduced to lead copper scraps and acetic acid to directly react in an oxygen atmosphere to produce the copper acetate; the method also provides a preparation method of the copper acetate, which comprises the steps of placing acetic acid and mother liquor in a reactor, adding a certain amount of copper oxide or copper hydroxide, stirring, gradually heating the temperature in the reactor from normal temperature to 50-150 ℃ for reaction, cooling the temperature in the reactor to 40 ℃ to crystallize the copper acetate, injecting the reaction solution into a centrifuge, separating the copper acetate crystal from the mother liquor through the centrifuge, and drying; the method comprises the steps of repeatedly and circularly reacting mixed acid liquid of nitric acid and acetic acid with copper in the presence of oxygen to obtain saturated copper acetate solution, and recrystallizing and filtering to obtain copper acetate; the method comprises the steps of preparing industrial grade glacial acetic acid into a dilute acetic acid solution with the concentration of 18% -20% as a leaching solution, taking a certain amount of copper material, putting the copper material into the microbubble oxidation tank, adjusting the temperature of the oxidation tank to 80 ℃ -85 ℃, enabling the solution to flow circularly through a circulating pump in the reaction process, continuously sucking air through a jet pipe due to negative pressure, mixing the air micro-bubbles with the solution, and enabling the air micro-bubbles to react with the copper material quickly. When the concentration of free acid in the leaching solution is reduced to 13% -15%, starting a cyclone separator in microbubble oxidation to perform solid-liquid separation to obtain solid particles and filtrate, and filtering, concentrating and crystallizing the filtrate to obtain a copper acetate monohydrate crystal; the method also provides a method for preparing the high-purity copper acetate crystal by taking the acidic etching waste liquid as the raw material, which comprises the following steps: adding acid etching waste liquid into a reactor with a stirring and heating device, heating to 40-60 ℃, sequentially adding a reaction activator, a suspending agent and potassium acetate, continuously heating, increasing the temperature to 90-95 ℃, keeping the temperature at a rate of 2-5 ℃/h, and keeping the temperature for 1-1.5 h; closing the heater when the volume of the solution in the system is 1/4-1/8 of the original volume, and cooling in a water bath to obtain crude copper acetate; adding the obtained crude product into a crystallizer, heating to 60-80 ℃, keeping the temperature at a heating rate of 4-5 ℃ per hour, preserving the temperature for 1-2 hours, naturally cooling and crystallizing after the heat preservation is finished, ageing for 2-4 hours when cooling to room temperature, and filtering and separating under reduced pressure to obtain copper acetate. In addition, the following problems exist in the copper acetate production process: the traditional copper acetate production process needs glacial acetic acid with the purity of 99 percent to provide acetate ions, or needs to be heated and even added with oxidant or pressurized in the production process.
The invention can synthesize copper acetate by using the acetic acid waste liquid with lower acetic acid content, thereby changing waste into valuable; meanwhile, the invention can carry out reaction at normal temperature and normal pressure, does not need to add an oxidant, and saves production cost.
In one specific example, the microetching waste fluid includes at least one of the following features:
(1) The copper ion content is 20 g/L-30 g/L;
(2) The content of the oxidant is 5 g/L-10 g/L; optionally, the oxidant comprises one or more of hydrogen peroxide and persulfate;
(3) The chemical oxygen demand is 1 g/L-3 g/L.
In one specific example, the acetic acid waste solution includes at least one of the following features:
(1) The copper ion content is 5 g/L-15 g/L;
(2) The mass percentage of the acetic acid is 20% -30%.
In one specific example, in the first reaction, the acid is selected from one or more of sulfuric acid, hydrochloric acid, and nitric acid.
In one specific example, in the first reaction, the acid is added to make the pH of the reaction system be 0 to 1.5. It is understood that the pH of the reaction system of the first reaction includes, but is not limited to: 0. 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5.
In one specific example, the time of the first reaction is 1 h to 2 h. It is understood that the time of the first reaction includes, but is not limited to: 1.0 h, 1.1 h, 1.2 h, 1.3 h, 1.4 h, 1.5 h, 1.6 h, 1.7 h, 1.8 h, 1.9 h, 2.0 h.
In one specific example, the temperature of the first reaction is a normal temperature. It is understood that the temperature of the first reaction includes, but is not limited to: 4. DEG C, 5 ℃, 6 ℃, 7 ℃, 8 ℃, 9 ℃, 10 ℃, 11 ℃, 12 ℃, 13 ℃, 14 ℃, 15 ℃, 16 ℃, 17 ℃, 18 ℃, 19 ℃, 20 ℃, 21 ℃, 22 ℃, 23 ℃, 24 ℃, 25 ℃, 26 ℃, 27 ℃, 28 ℃, 29 ℃, 30 ℃, 31 ℃, 32 ℃, 33 ℃, 34 ℃ and 35 ℃.
In one specific example, the first reaction further includes a step of adjusting the content of copper ions, where the step of adjusting the content of copper ions includes:
copper oxide is added into the microetching waste liquid, so that the copper ion content in the obtained solution is 40 g/L-60 g/L. It will be appreciated that the copper ion content of the solution includes, but is not limited to: 40 g/L, 40.5/L, 41/L, 41.5/L, 42/L, 42.5/L, 43/L, 43.5/L, 44/L, 44.5/L, 45/L, 45.5/L, 46/L, 46.5/L, 47/L, 47.5/L, 48/L, 48.5/L, 49/L, 49.5/L, 50/L, 50.5/L, 51/L, 51.5/L, 52/L, 52.5/L, 53/L, 53.5/L, 54/L, 54.5/L, 55/L, 55.5/L, 56/L, 56.5/L, 57/L, 57.5/L, 58/L, 58.5/L, 59/L, 59.5/L, 60/L.
Without limitation, the copper oxide includes one or more of copper oxide recovered from wastewater treatment, commercially available copper oxide, and copper oxide obtained from other manufacturing processes. In one specific example, the copper oxide is copper oxide recovered from wastewater treatment. Specifically, the copper oxide recovered from the wastewater treatment can be used as one of copper sources, and the copper ion content of the first reaction liquid is adjusted, namely, the copper ion content in the microetching waste liquid is adjusted by utilizing the copper oxide recovered from the wastewater treatment, and then the microetching waste liquid and the acetic acid waste liquid are reacted at normal temperature and normal pressure.
In one specific example, in the second reaction, the reducing agent is selected from one or more of ferrous sulfate, ferrous hydrochloride, and ferrous nitrate.
In one specific example, in the second reaction, the base is selected from one or more of sodium hydroxide, sodium carbonate, and sodium bicarbonate.
In one specific example, in the second reaction, the alkali is added to make the pH of the reaction system 3.0 to 3.5. It is understood that the pH of the reaction system of the second reaction includes, but is not limited to: 3.0, 3.1, 3.2, 3.3, 3.4, 3.5.
In one specific example, the second reaction time is 2-3 h. It is understood that the time of the second reaction includes, but is not limited to: 2.0 h, 2.1 h, 2.2 h, 2.3 h, 2.4 h, 2.5 h, 2.6 h, 2.7 h, 2.8 h, 2.9 h, 3.0 h.
In one specific example, the temperature of the second reaction is a normal temperature. It is understood that the temperature of the second reaction includes, but is not limited to: 4. DEG C, 5 ℃, 6 ℃, 7 ℃, 8 ℃, 9 ℃, 10 ℃, 11 ℃, 12 ℃, 13 ℃, 14 ℃, 15 ℃, 16 ℃, 17 ℃, 18 ℃, 19 ℃, 20 ℃, 21 ℃, 22 ℃, 23 ℃, 24 ℃, 25 ℃, 26 ℃, 27 ℃, 28 ℃, 29 ℃, 30 ℃, 31 ℃, 32 ℃, 33 ℃, 34 ℃ and 35 ℃.
In one specific example, in the second reaction, the mass ratio of the reducing agent to the oxidizing agent in the first reaction liquid is 1: (3-5). It is understood that the mass ratio of the reducing agent to the oxidizing agent in the first reaction liquid includes, but is not limited to: 1:3.0, 1:3.1, 1:3.2, 1:3.3, 1:3.4, 1:3.5, 1:3.6, 1:3.7, 1:3.8, 1:3.9, 1:4.0, 1:4.1, 1:4.2, 1:4.3, 1:4.4, 1:4.5, 1:4.6, 1:4.7, 1:4.8, 1:4.9, 1:5.0.
in one specific example, the chemical oxygen demand in the second reaction solution is reduced to 0.1 g/L-0.3 g/L. Specifically, the chemical oxygen demand in the second reaction liquid is reduced to 0.1 g/L-0.3 g/L, so that the treatment difficulty of the subsequent wastewater can be effectively reduced, and the production cost is reduced.
In one specific example, in the third reaction, the base is selected from one or more of sodium hydroxide, sodium carbonate, and sodium bicarbonate.
In one specific example, the time of the third reaction is 2 h to 3 h. It is understood that the time of the third reaction includes, but is not limited to: 2.0 h, 2.1 h, 2.2 h, 2.3 h, 2.4 h, 2.5 h, 2.6 h, 2.7 h, 2.8 h, 2.9 h, 3.0 h
In one specific example, the temperature of the third reaction is a normal temperature. It is understood that the temperature of the third reaction includes, but is not limited to: 4. DEG C, 5 ℃, 6 ℃, 7 ℃, 8 ℃, 9 ℃, 10 ℃, 11 ℃, 12 ℃, 13 ℃, 14 ℃, 15 ℃, 16 ℃, 17 ℃, 18 ℃, 19 ℃, 20 ℃, 21 ℃, 22 ℃, 23 ℃, 24 ℃, 25 ℃, 26 ℃, 27 ℃, 28 ℃, 29 ℃, 30 ℃, 31 ℃, 32 ℃, 33 ℃, 34 ℃ and 35 ℃.
In one specific example, the method further comprises the step of post-treating the wastewater obtained by solid-liquid separation, and the post-treatment step comprises the following steps: adding alkali into the wastewater to perform a fourth reaction, and performing solid-liquid separation on the obtained reactant to prepare copper oxide and filtrate.
Optionally, the copper oxide is added into the microetching waste liquid, so that the copper ion content in the obtained solution is 40 g/L-60 g/L. It will be appreciated that the copper ion content of the resulting solution includes, but is not limited to: 40 g/L, 40.5/L, 41/L, 41.5/L, 42/L, 42.5/L, 43/L, 43.5/L, 44/L, 44.5/L, 45/L, 45.5/L, 46/L, 46.5/L, 47/L, 47.5/L, 48/L, 48.5/L, 49/L, 49.5/L, 50/L, 50.5/L, 51/L, 51.5/L, 52/L, 52.5/L, 53/L, 53.5/L, 54/L, 54.5/L, 55/L, 55.5/L, 56/L, 56.5/L, 57/L, 57.5/L, 58/L, 58.5/L, 59/L, 59.5/L, 60/L.
The invention has simple post-treatment of wastewater generated by preparing copper acetate, the copper oxide which is an effective substance after the wastewater is treated can be reused for production, for example, the wastewater returns to the front end to be used as a copper source in the first reaction, the maximum recycling of resources is realized, the filtrate enters a wastewater station to be treated together with other wastewater, sodium acetate contained in the filtrate can be used as a carbon source of denitrifying bacteria, or sodium acetate and sodium sulfate are recycled in a fractional crystallization and separation mode, thereby avoiding the waste of valuable resources.
In one specific example, in the step of post-treating, the base is selected from one or more of sodium hydroxide, sodium carbonate, and sodium bicarbonate.
In one specific example, in the step of post-treatment, the alkali is added to make the pH of the reaction system of the fourth reaction be 10 to 12. It is understood that the pH of the reaction system of the fourth reaction includes, but is not limited to: 10.0, 10.1, 10.2, 10.3, 10.4, 10.5, 10.6, 10.7, 10.8, 10.9, 11.0, 11.1, 11.2, 11.3, 11.4, 11.5, 11.6, 11.7, 11.8, 11.9, 12.0.
In one specific example, the temperature of the fourth reaction is a normal temperature. It is understood that the temperature of the fourth reaction includes, but is not limited to: 4. DEG C, 5 ℃, 6 ℃, 7 ℃, 8 ℃, 9 ℃, 10 ℃, 11 ℃, 12 ℃, 13 ℃, 14 ℃, 15 ℃, 16 ℃, 17 ℃, 18 ℃, 19 ℃, 20 ℃, 21 ℃, 22 ℃, 23 ℃, 24 ℃, 25 ℃, 26 ℃, 27 ℃, 28 ℃, 29 ℃, 30 ℃, 31 ℃, 32 ℃, 33 ℃, 34 ℃ and 35 ℃.
Without limitation, the filtrate may be further subjected to a process such as ion exchange resin to recover copper, to reduce the copper ion content to below 2 mg/L, and then to a wastewater station for treatment with other wastewater.
The following examples are further illustrative, and the raw materials used in the following examples, unless otherwise specified, are commercially available; the instruments used, unless otherwise specified, may be commercially available; the processes involved, unless otherwise specified, are routine choices by those skilled in the art.
In the microetching waste liquid used in the example, the copper ion content was 25 g/L, the oxidant content was 8 g/L, and the chemical oxygen demand was 2 g/L.
In the acetic acid waste liquid adopted in the example, the copper ion content is 10 g/L, and the acetic acid mass percentage is 25%.
Example 1
(1) Concentrating microetching waste liquid: taking microetching waste liquid 1000 kg, adding copper oxide to enable the copper content in the obtained solution to be 50 g/L, then adding sulfuric acid to adjust and maintain the pH value to 1.5, reacting at normal temperature and normal pressure to 1 h, and carrying out solid-liquid separation to obtain concentrated liquid.
(2) Impurity removal of concentrated liquor: adding FeSO into the concentrate 4 ·7H 2 O, feSO 4 ·7H 2 And (3) adding sodium hydroxide to adjust and maintain the pH to 3.0, reacting at normal temperature and normal pressure for 2 h, and carrying out solid-liquid separation to obtain the impurity-removing liquid.
(3) Synthesizing copper acetate: adding acetic acid waste liquid into the impurity removal liquid to enable the molar ratio of copper ions to acetate ions in the reaction system to reach 1:2, obtaining a mixed solution. And adding sodium hydroxide into the mixed solution at normal temperature and normal pressure, regulating and maintaining the reaction pH to 3.5, reacting 2.2 h, separating solid from liquid, washing, centrifuging and drying to obtain copper acetate.
(4) Wastewater treatment: adding sodium hydroxide into the wastewater to regulate and maintain the pH value to 10, precipitating, separating solid from liquid to obtain copper oxide, and returning to the step (1) for concentrating microetching waste liquid; recovering copper from the filtrate by ion exchange resin method, and reducing copper ion content in the ion exchange liquid to below 2 mg/L; the ion exchange liquid enters a wastewater station to be treated together with other wastewater.
Example 2
The copper acetate preparation was performed as in example 1, with the main differences: in the microetching solution concentrating step, copper oxide is added to ensure that the copper content in the obtained solution is 60 g/L.
Example 3
The copper acetate preparation was performed as in example 1, with the main differences: in the step of synthesizing copper acetate, adding acetic acid waste liquid into the impurity removing liquid to enable the molar ratio of copper ions to acetate ions in the reaction system to be 1:4.
Example 4
The copper acetate preparation was performed as in example 1, with the main differences: in the copper acetate synthesis step, sodium hydroxide was added to the mixed solution and the pH was maintained at 5.5.
Example 5
The copper acetate preparation was performed as in example 1, with the main differences: in the microetching waste liquid concentration step, copper oxide is added to make the copper content in the obtained solution 40 g/L.
Example 6
The copper acetate preparation was performed as in example 1, with the main differences: in the step of synthesizing copper acetate, adding acetic acid waste liquid into the impurity removing liquid to enable the molar ratio of copper ions to acetate ions in the reaction system to be 1:5.
Example 7
The copper acetate preparation was performed as in example 1, with the main differences: the microetching waste liquid concentrating step is not performed.
Comparative example 1
The copper acetate preparation was performed as in example 1, with the main differences: in the step of synthesizing copper acetate, adding acetic acid waste liquid into the impurity removing liquid to enable the molar ratio of copper ions to acetate ions in the reaction system to be 1:1.
Comparative example 2
The copper acetate preparation was performed as in example 1, with the main differences: in the copper acetate synthesis step, sodium hydroxide was added to the mixed solution and the pH was maintained at 3.0.
Comparative example 3
The copper acetate preparation was performed as in example 1, with the main differences: in the copper acetate synthesis step, sodium hydroxide was added to the mixed solution and the pH was maintained at 6.0.
The copper acetates prepared in examples 1 to 6 and comparative examples 1 to 3 were tested according to the technical index values described in the group standard copper acetate (copper acetate) (T-CPCIF 0209-2022), and the corresponding test results are shown in Table 3.
TABLE 3 Table 3
As can be seen from the results in Table 3, according to the embodiment of the invention, by reasonably designing the reaction steps and controlling the reaction conditions of the reactions of each step, copper acetate with high purity, good fluidity and good clarity, which meets the requirements of the group standard copper acetate (copper acetate) (T-CPCIF 0209-2022), can be prepared, and the cooperative treatment and comprehensive utilization of two wastes, namely microetching waste liquid and acetic acid waste liquid, are well realized. In the comparative example, the molar ratio of copper ions to acetate ions in the reaction system in the step of synthesizing copper acetate was adjusted to 1:1. after sodium hydroxide is added into the mixed solution and the pH value is maintained to be less than 3.5 or more than 5.5, the indexes of the prepared copper acetate are not in accordance with the standard, and even copper acetate cannot be synthesized.
The invention relates to a novel method for synthesizing copper acetate, which takes copper in microetching waste liquid as a copper source, provides acetate ions by utilizing acetic acid resources in the acetic acid waste liquid, can react at normal temperature and normal pressure to prepare a copper acetate product with high purity, good fluidity, good clarity and high added value, has mild reaction conditions, is simple to operate, saves production cost, reduces environmental pollution, saves resources and improves economic benefit, well realizes the cooperative treatment and efficient recycling of two wastes, namely microetching waste liquid and acetic acid waste liquid, and effectively reduces production cost.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. The synthesis method of the copper acetate is characterized by comprising the following steps of:
carrying out a first reaction on the microetching waste liquid and acid to prepare a first reaction liquid;
carrying out a second reaction on the first reaction liquid, a reducing agent and alkali to prepare a second reaction liquid;
mixing the second reaction liquid with acetic acid waste liquid, performing a third reaction with alkali, performing solid-liquid separation on the obtained reactant, and collecting copper acetate solids;
the molar ratio of copper ions to acetate ions in the solution obtained by mixing the second reaction solution and the acetic acid waste solution is 1: (2-5);
in the third reaction, the alkali is added to enable the pH value of the reaction system to be 3.5-5.5.
2. The method of synthesizing copper acetate according to claim 1, wherein the microetching waste liquid comprises at least one of the following features:
(1) The copper ion content is 20 g/L-30 g/L;
(2) The content of the oxidant is 5 g/L-10 g/L; optionally, the oxidant comprises one or more of hydrogen peroxide and persulfate;
(3) The chemical oxygen demand is 1 g/L-3 g/L.
3. The method of synthesizing copper acetate according to claim 1, wherein the acetic acid waste liquid comprises at least one of the following features:
(1) The copper ion content is 5 g/L-15 g/L;
(2) 20-30% of acetic acid.
4. The method of synthesizing copper acetate according to claim 1, wherein the first reaction satisfies at least one of the following conditions:
(1) The acid is selected from one or more of sulfuric acid, hydrochloric acid and nitric acid;
(2) Adding the acid to enable the pH value of the reaction system to be 0-1.5;
(3) The time of the first reaction is 1-2 h;
(4) The temperature of the first reaction is normal temperature.
5. The method of synthesizing copper acetate according to claim 1, further comprising a step of adjusting a copper ion content in the first reaction, the step of adjusting the copper ion content comprising:
copper oxide is added into the microetching waste liquid, so that the copper ion content in the obtained solution is 40 g/L-60 g/L.
6. The method of synthesizing copper acetate according to claim 1, wherein the second reaction satisfies at least one of the following conditions:
(1) The reducing agent is selected from one or more of ferrous sulfate, ferrous hydrochloride and ferrous nitrate;
(2) The alkali is selected from one or more of sodium hydroxide, sodium carbonate and sodium bicarbonate;
(3) Adding the alkali to enable the pH value of the reaction system to be 3.0-3.5;
(4) The second reaction time is 2-3 h;
(5) The temperature of the second reaction is normal temperature;
(6) The mass ratio of the reducing agent to the oxidant in the first reaction liquid is 1: (3-5).
7. The method of synthesizing copper acetate according to claim 1, wherein the third reaction satisfies at least one of the following conditions:
(1) The alkali is selected from one or more of sodium hydroxide, sodium carbonate and sodium bicarbonate;
(2) The time of the third reaction is 2-3 h;
(3) The temperature of the third reaction is normal temperature.
8. The method for synthesizing copper acetate according to any one of claims 1 to 7, further comprising a step of post-treating wastewater obtained by solid-liquid separation, the post-treatment step comprising: adding alkali into the wastewater to perform a fourth reaction, and performing solid-liquid separation on the obtained reactant to prepare copper oxide and filtrate.
9. The method for synthesizing copper acetate according to claim 8, wherein the copper oxide is added to the microetching waste liquid so that the copper ion content in the obtained solution is 40 g/L to 60 g/L.
10. The method of synthesizing copper acetate according to claim 8, wherein the step of post-treating satisfies at least one of the following conditions:
(1) The alkali is selected from one or more of sodium hydroxide, sodium carbonate and sodium bicarbonate;
(2) Adding the alkali to enable the pH of the reaction system to be 10-12;
(3) The temperature of the fourth reaction is normal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311338757.7A CN117603039A (en) | 2023-10-17 | 2023-10-17 | Synthesis method of copper acetate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311338757.7A CN117603039A (en) | 2023-10-17 | 2023-10-17 | Synthesis method of copper acetate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117603039A true CN117603039A (en) | 2024-02-27 |
Family
ID=89956796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311338757.7A Pending CN117603039A (en) | 2023-10-17 | 2023-10-17 | Synthesis method of copper acetate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117603039A (en) |
-
2023
- 2023-10-17 CN CN202311338757.7A patent/CN117603039A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108341424B (en) | Method for producing copper sulfate | |
| CN103922416B (en) | A kind of method of Separation and Recovery iron from red mud | |
| CN109536720A (en) | The removal methods of chlorine in a kind of copper-bath | |
| CN109368612A (en) | Method for preparing battery-grade iron phosphate by using iron phosphate production wastewater and iron phosphate prepared by method | |
| CN109319823B (en) | Method for treating copper-containing etching waste liquid | |
| CN110002649B (en) | Method for resource utilization of graphene waste acid | |
| CN110923462A (en) | Resourceful treatment method for white smoke | |
| CN109055757A (en) | A method of manganese dioxide and lead in the anode slag of recycling electrolytic manganese or electrolytic zinc | |
| CN111424280A (en) | Regeneration system and method for tin stripping waste liquid | |
| CN103693672B (en) | A kind of cupric acid waste liquid not containing ammonia nitrogen prepares the method for plating level cupric sulfate pentahydrate | |
| CN104843790A (en) | Method for preparing sodium chromate from chromite by acid dissolution oxygenation | |
| CN105907972B (en) | A kind of method of a variety of valuable metals of the synthetical recovery from electroplating sludge | |
| CN112408472A (en) | Method for co-producing artificial rutile and polymeric ferric sulfate by using sulfuric acid waste acid | |
| CN112359224B (en) | Method for purifying cadmium-containing nickel-cobalt solution to remove cadmium | |
| CN117603039A (en) | Synthesis method of copper acetate | |
| CN116463508A (en) | Method for treating nickel cobalt hydroxide | |
| CN113912130B (en) | Iron oxide red and preparation method thereof | |
| CN112897771B (en) | Treatment device and treatment method for rare earth smelting wastewater | |
| CN110272063B (en) | Method for producing high-purity sodium metaaluminate by using waste liquid from titanium dioxide production | |
| CN108996752B (en) | Method for recovering low-concentration nickel from nickel extraction waste water | |
| CN107381646B (en) | The method for preparing mangano-manganic oxide using acid-soluble manganese ore recycled based on sulphur, ammonia | |
| CN114956189B (en) | Preparation method of battery-grade manganese sulfate | |
| CN115611311B (en) | Method for treating chromium-containing sludge generated by vanadium extraction wastewater | |
| CN113460976B (en) | Purification method of tin-containing tellurium dioxide | |
| CN115403055B (en) | Method for recycling ammonia nitrogen in electrolytic manganese slag |
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 |