WO2024138533A1 - 一种高纯度碱式碳酸铜的制备方法 - Google Patents
一种高纯度碱式碳酸铜的制备方法 Download PDFInfo
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- WO2024138533A1 WO2024138533A1 PCT/CN2022/143410 CN2022143410W WO2024138533A1 WO 2024138533 A1 WO2024138533 A1 WO 2024138533A1 CN 2022143410 W CN2022143410 W CN 2022143410W WO 2024138533 A1 WO2024138533 A1 WO 2024138533A1
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- copper
- basic copper
- carbonate
- copper carbonate
- purity
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- 229940116318 copper carbonate Drugs 0.000 title claims abstract description 63
- GEZOTWYUIKXWOA-UHFFFAOYSA-L copper;carbonate Chemical compound [Cu+2].[O-]C([O-])=O GEZOTWYUIKXWOA-UHFFFAOYSA-L 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000010949 copper Substances 0.000 claims abstract description 45
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910052802 copper Inorganic materials 0.000 claims abstract description 44
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000001099 ammonium carbonate Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910001868 water Inorganic materials 0.000 claims abstract description 31
- 235000012501 ammonium carbonate Nutrition 0.000 claims abstract description 29
- 239000002243 precursor Substances 0.000 claims abstract description 23
- JCRJMSQFBRGSSX-UHFFFAOYSA-L copper;azane;carbonate Chemical compound N.[Cu+2].[O-]C([O-])=O JCRJMSQFBRGSSX-UHFFFAOYSA-L 0.000 claims abstract description 16
- 150000001875 compounds Chemical class 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 11
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 8
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 claims description 5
- 239000005750 Copper hydroxide Substances 0.000 claims description 5
- 229910001956 copper hydroxide Inorganic materials 0.000 claims description 5
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 4
- 239000005751 Copper oxide Substances 0.000 claims description 4
- 229910000431 copper oxide Inorganic materials 0.000 claims description 4
- 239000002994 raw material Substances 0.000 abstract description 9
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000000354 decomposition reaction Methods 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 23
- 229910021529 ammonia Inorganic materials 0.000 description 10
- 239000012535 impurity Substances 0.000 description 9
- 238000001914 filtration Methods 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011133 lead Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 150000001879 copper Chemical class 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 238000004626 scanning electron microscopy Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000005749 Copper compound Substances 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 101000827703 Homo sapiens Polyphosphoinositide phosphatase Proteins 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
- 102100023591 Polyphosphoinositide phosphatase Human genes 0.000 description 1
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 1
- 101100233916 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) KAR5 gene Proteins 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003619 algicide Substances 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 239000003674 animal food additive Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 150000001880 copper compounds Chemical class 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical class [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 239000003171 wood protecting agent Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G3/00—Compounds of copper
Definitions
- the concentration of the ammonium carbonate solution is 50-900 g/L.
- S1 further includes adjusting the pH of the ammonium carbonate solution to 8-10.
- the copper-containing compound includes one or more of copper oxide, copper hydroxide and common basic copper carbonate.
- the molar ratio of the ammonium carbonate solution to the copper-containing compound is 1.1:1 to 4.5:1.
- the water bath temperature is 10-70°C.
- the water bath stirring rate is 100-600 r/min, and the stirring time is 15-300 min.
- the negative pressure of S3 and S4 is -0.001 to -0.1 MPa.
- the high-purity basic copper carbonate prepared by the present invention has a high yield, with a yield as high as 82%;
- the present invention uses low-cost copper-containing compounds to replace high-purity basic copper carbonate of metallic copper, thereby reducing the cost of raw materials and not increasing the capital investment of additional equipment.
- the operation method is simple and suitable for industrialization.
- Fig. 1 is a schematic diagram of a process of the present invention
- FIG2 is a SEM image of the copper-based precursor in Example 1;
- compositions, processes, methods, articles, or apparatus that comprises the listed elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.
- the ammonium carbonate solution can be prepared by directly dissolving ammonium carbonate solid in water, or by reacting ammonia water, carbon dioxide, ammonium bicarbonate and water to obtain the ammonium carbonate solution.
- the copper carbonate ammonia solution is heated under negative pressure to evaporate the ammonia gas, and then the solid-liquid separation is performed to obtain common basic copper carbonate.
- the basic copper carbonate obtained by the above steps has a high yield, with a yield of up to 82%, and can improve the purity of the basic copper carbonate.
- the obtained common basic copper carbonate can also be added as a raw material of a copper-containing compound to remove impurities and purify the basic copper carbonate.
- the present invention uses a low-priced copper-containing compound to replace metallic copper to obtain high-purity basic copper carbonate, reduces the cost of raw materials, does not increase the capital investment of additional equipment, has a simple operation method, and is suitable for industrialization.
- the molar ratio of the ammonium carbonate solution to the copper-containing compound is 1.1:1 to 4.5:1.
- the stirring rate of the water bath is 100 to 600 r/min, and the stirring time is 15 to 300 min.
- the weight ratio of water to the copper-based precursor is 2:1 to 10:1.
- the negative pressure of S3 and S4 is -0.001 to -0.1 MPa.
- the copper carbonate ammonia solution is heated under a negative pressure of -0.005 MPa to evaporate ammonia, and a green solid powder is precipitated. After washing and filtering, ordinary basic copper carbonate is obtained.
- Example 1 As shown in FIG. 2 , the copper-based precursor in Example 1 was subjected to scanning electron microscopy (SEM) analysis. FIG. 2 shows a 100X image.
- the copper-based precursor in Example 1 is a square columnar substance.
- the high-purity basic copper carbonate in Example 1 was subjected to scanning electron microscopy (SEM) analysis and XRD analysis.
- Figure 2 shows an image at 1.00KX.
- the high-purity basic copper carbonate is uniform in size, has no impurities, and has a high purity.
- the XRD diagram of Figure 4 can further confirm that the obtained product is basic copper carbonate.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
Abstract
本发明涉及化工产品制备的技术领域,更具体地说,它涉及一种高纯度碱式碳酸铜的制备方法,其技术方案要点是,包括以下步骤:S1、获得碳酸铵溶液;S2、将含铜化合物加入至所述碳酸铵溶液中,水浴搅拌,反应完全后分离固液,获得铜基前驱体和碳酸铜氨液;S3、将所述铜基前驱体加入至水中,负压加热分解,获得高纯度碱式碳酸铜;S4、将所述碳酸铜氨液负压加热分解,获得普通碱式碳酸铜。本发明具有降低原料成本、提高碱式碳酸铜的纯度和产量的优点。
Description
本发明涉及化工产品制备的技术领域,更具体地说,它涉及一种高纯度碱式碳酸铜的制备方法。
碱式碳酸铜是一种重要铜盐产品,在无机盐工业中用于制备各种铜化合物,在有机工业中用作有机合成的催化剂,在电镀铜锡合金工业中用作铜的添加剂,也可用作烟火制造、颜料、黑穗病的防止剂、电子陶瓷、原油贮存的脱碱剂等;此外,在英美等国,碱式碳酸铜可用于木材防腐剂、水体杀藻剂、容器育苗、农作物杀真菌剂和饲料添加剂。碱式碳酸铜具有广泛的用途。
目前,碱式碳酸铜最常用的生产方法有酸碱中和法和氨法。
酸碱中和法以铜盐和碱金属碳酸盐为原料,控制反应温度在40-70℃、pH为弱酸条件下制备得到碱式碳酸铜。此方法成本低、操作简单;但产生大量废水,且产品中含有较多的难以去除的杂质。
氨法以金属铜和碳酸铵盐为原料,通入空气或氧气氧化金属铜,控制pH值和反应温度,通过吹脱、汽提、负压蒸氨等方式将溶液中多余的碳酸根和氨分离,得到碱式碳酸铜。此种方法获取的碱式碳酸铜品质高且废水少,但设备投资大、原料成本高。
发明内容
针对现有技术存在的不足,本发明的目的在于提供一种高纯度碱式碳酸铜的制备方法,具有提高碱式碳酸铜的纯度和降低成本的优点。
本发明的上述技术目的是通过以下技术方案得以实现的,一种高纯度碱式碳酸铜的制备方法,包括以下步骤:
S1、获得碳酸铵溶液;
S2、将含铜化合物加入至所述碳酸铵溶液中,水浴搅拌,反应完全后分离固液,获得铜基前驱体和碳酸铜氨液;
S3、将所述铜基前驱体加入至水中,负压加热分解,获得高纯度碱式碳酸铜;
S4、将所述碳酸铜氨液负压加热分解,获得普通碱式碳酸铜。
在其中一个实施例中,所述碳酸铵溶液浓度为50~900g/L。
在其中一个实施例中,所述S1还包括调节所述碳酸铵溶液的pH为8~10。
在其中一个实施例中,所述含铜化合物包括氧化铜、氢氧化铜和所述普通碱式碳酸铜的一种或多种。
在其中一个实施例中,所述碳酸铵溶液与所述含铜化合物的摩尔比为1.1:1~4.5:1。
在其中一个实施例中,所述水浴温度为10~70℃。
在其中一个实施例中,所述水浴搅拌速率为100~600r/min,搅拌时间为15~300min。
在其中一个实施例中,水与所述铜基前驱体的重量比为2:1~10:1。
在其中一个实施例中,所述S3与S4的负压压强均为-0.001~-0.1MPa。
上述一种高纯度碱式碳酸铜的制备方法,具有以下有益效果:
其一,通过本发明制备所得的高纯度碱式碳酸铜产量高,收率高达82%;
其二,本发明采用配位沉积法可显著降低碱式碳酸铜的杂质,提高碱式碳酸铜的纯度,同时,通过本发明制得的普通碱式碳酸铜亦可作为含铜化合物原料加入,对碱式碳酸铜进行除杂提纯;
其三,本发明使用价格低廉的含铜化合物替代金属铜指的高纯度碱式碳酸铜,降低原料成本,且不增加额外设备的资金投入,操作方法简单,适用于产业化。
图1是本发明的流程示意图;
图2是实施例1中铜基前驱体的SEM图;
图3是实施例1中高纯度碱式碳酸铜的SEM图;
图4是实施例1中高纯度碱式碳酸铜的XRD对照图;
下面结合实施例对本发明作进一步详细描述,需指出的是,以下所述实施例旨在便于对本发明的理解,而对其不起任何限定作用。除非另有限定,本文使用的所有技术以及科学术语具有与本发明所属领域普通技术人员通常理解的相同的含义。当存在矛盾时,以本说明书中的定义为准。
如本文所用术语“由…制备”与“包含”同义。本文中所用的术语“包含”、“包括”、“具有”、“含有”或其任何其它变形,意在覆盖非排它性的包括。例如,包含所列要素的组合物、步骤、方法、制品或装置不必仅限于那些要素,而是可以包括未明确列出的其它要素或此种组合物、步骤、方法、制品或装置所固有的要素。
连接词“由…组成”排除任何未指出的要素、步骤或组分。如果用于权利要求中,此短语将使权利要求为封闭式,使其不包含除那些描述的材料以外的材料,但与其相关的常规杂质除外。当短语“由…组成”出现在权利要求主体的子句中而不是紧接在主题之后时,其仅限定在该子句中描述的要素;其它要素并不被排除在作为整体的所述权利要求之外。
当量、浓度、或者其它值或参数以范围、优选范围、或一系列上限优选值和下限优选值限定的范围表示时,这应当被理解为具体公开了由任何范围上限或优选值与任何范围下限或优选值的任一配对所形成的所有范围,而不论该范围是否单独公开了。例如,当公开了范围“1至5”时,所描述的范围 应被解释为包括范围“1至4”、“1至3”、“1至2”、“1至2和4至5”、“1至3和5”等。当数值范围在本文中被描述时,除非另外说明,否则该范围意图包括其端值和在该范围内的所有整数和分数。
下面结合附图和实施例,对本发明进行详细描述。
参阅图1,一种高纯度碱式碳酸铜的制备方法,包括以下步骤:
S1、获得碳酸铵溶液;
在实际操作中,可直接使用水溶解碳酸铵固体配制得到碳酸铵溶液,亦可使用氨水、二氧化碳、碳酸氢铵和水组合反应制得碳酸铵溶液。
S2、将含铜化合物加入至碳酸铵溶液中,水浴搅拌,反应完全后分离固液,获得铜基前驱体和碳酸铜氨液;
在实际操作中,通过观察反应中蓝紫色或深紫色晶体是否完全形成以判断是否反应完全。
S3、将铜基前驱体加入至水中,负压加热分解,获得高纯度碱式碳酸铜;
在实际操作中,铜基前驱体与水混合进行打浆,通过负压加热以蒸发氨气,而后固液分离获得高纯度碱式碳酸铜。
S4、将碳酸铜氨液负压加热分解,获得普通碱式碳酸铜;
碳酸铜氨液通过负压加热以蒸发氨气,而后固液分离获得普通碱式碳酸铜。
本发明的原理为:作为原料的含铜化合物含有氯化物、硫酸盐和重金属离子如铁、铅、锌、镍等杂质,反应时,上述杂质溶于碳酸铜氨液中,无法通过过滤截留。通过配位沉积法,使得铜离子与碳酸铵在溶液反应生成铜基前驱体固体,即可分离杂质,铜基前驱体在水中加热分解即可制备碱式碳酸铜。
通过上述步骤得到的碱式碳酸铜产量高,收率高达82%,且可提高碱式 碳酸铜的纯度,同时制得的普通碱式碳酸铜亦可作为含铜化合物原料加入,对碱式碳酸铜进行除杂提纯。本发明使用价格低廉的含铜化合物替代金属铜制得高纯度碱式碳酸铜,降低原料成本,且不增加额外设备的资金投入,操作方法简单,适用于产业化。
具体的,碳酸铵溶液浓度为50~900g/L。
具体的,S1还包括调节碳酸铵溶液的pH为8~10。
具体的,含铜化合物包括氧化铜和氢氧化铜的一种或多种。
具体的,碳酸铵溶液与含铜化合物的摩尔比为1.1:1~4.5:1。
具体的,水浴温度为10~70℃。
具体的,水浴搅拌速率为100~600r/min,搅拌时间为15~300min。
具体的,水与铜基前驱体的重量比为2:1~10:1。
具体的,S3与S4的负压压强均为-0.001~-0.1MPa。
以下为具体示例:
实施例1
一种高纯度碱式碳酸铜的制备方法,步骤如下:
S1、取200g碳酸铵溶于400ml水中,获得碳酸铵溶液;
S2、将150g氢氧化铜加入至碳酸铵溶液中,在50℃的温度下水浴搅拌120min,分离固液,获得铜基前驱体和碳酸铜氨液;
S3、将铜基前驱体加入到水中打浆,在负压为-0.005MPa的条件下加热蒸氨,析出绿色固体粉末,水洗过滤后得到高纯度碱式碳酸铜;
S4、将碳酸铜氨液在负压为-0.005MPa的条件下加热蒸氨,析出绿色固体粉末,水洗过滤后得到普通碱式碳酸铜。
如图2所示,对实施例1中的铜基前驱体进行扫描电镜(SEM)分析,图2显示为100X的图像,实施例1中的铜基前驱体为方形柱状物质。
如图3-4所示,对实施例1中的高纯度碱式碳酸铜进行扫描电镜(SEM)分析和XRD分析,图2显示为1.00KX的图像,高纯度碱式碳酸铜大小均匀,未见杂质,纯度较高;同时从图4的XRD图可进一步确认得到产物为碱式碳酸铜。
实施例2
S1、取100g碳酸氢铵溶于400ml水中,加入质量浓度为25%氨水调节pH值为9.5,获得碳酸铵溶液;
S2、将80g氢氧化铜加入至碳酸铵溶液中,在20℃的温度下水浴搅拌60min,分离固液,获得铜基前驱体和碳酸铜氨液;
S3、将铜基前驱体加入到水中打浆,在负压为-0.06MPa的条件下加热蒸氨,析出绿色固体粉末,水洗过滤后得到高纯度碱式碳酸铜;
S4、将碳酸铜氨液在负压为-0.06MPa的条件下加热蒸氨,析出绿色固体粉末,水洗过滤后得到普通碱式碳酸铜。
实施例3
(1)取300ml、质量浓度为25%氨水和100ml水于反应釜中密封搅拌,通入二氧化碳,直至pH至8.7,得到碳酸铵溶液;
(2)将50g氧化铜加入到碳酸铵溶液中,在60℃的温度下水浴搅拌300min,分离固液,获得铜基前驱体和碳酸铜氨液;
(3)将铜基前驱体加入到水中打浆,在负压为-0.02MPa的条件下加热蒸氨,析出绿色固体粉末,水洗过滤后得到高纯度碱式碳酸铜;
(4)将碳酸铜氨液在负压为-0.02MPa的条件下加热蒸氨,析出绿色固体粉末,水洗过滤后得到普通碱式碳酸铜。
本发明实施例1-3制得的高纯度碱式碳酸铜的各项化学指标如下表所示:
检测项目(%) | 实施例1 | 实施例2 | 实施例3 |
检测项目(%) | 实施例1 | 实施例2 | 实施例3 |
铜(Cu) | 56.08 | 55.91 | 56.2 |
钠(Na) | <0.0010 | <0.0010 | <0.0010 |
铁(Fe) | 0.0006 | 0.0005 | 0.0006 |
铅(Pb) | <0.0005 | <0.0005 | <0.0005 |
锌(Zn) | <0.0001 | <0.0001 | <0.0001 |
钙(Ca) | <0.0005 | <0.0005 | <0.0005 |
铬(Cr) | 0.0001 | 0.0004 | 0.00003 |
镉(Cd) | <0.00001 | <0.00001 | <0.00001 |
砷(As) | <0.000002 | 0.000007 | 0.000004 |
盐酸不溶物 | 0.007 | 0.006 | 0.006 |
氯化物(以Cl计) | 0.0067 | 0.004 | 0.0081 |
硫酸盐(以SO 4计) | <0.05 | <0.05 | <0.05 |
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对本发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。
Claims (9)
- 一种高纯度碱式碳酸铜的制备方法,其特征在于,包括以下步骤:S1、获得碳酸铵溶液;S2、将含铜化合物加入至所述碳酸铵溶液中,水浴搅拌,反应完全后分离固液,获得铜基前驱体和碳酸铜氨液;S3、将所述铜基前驱体加入至水中,负压加热分解,获得高纯度碱式碳酸铜;S4、将所述碳酸铜氨液负压加热分解,获得普通碱式碳酸铜。
- 根据权利要求1所述的一种高纯度碱式碳酸铜的制备方法,其特征在于:所述碳酸铵溶液浓度为50~900g/L。
- 根据权利要求1所述的一种高纯度碱式碳酸铜的制备方法,其特征在于:所述S1还包括调节所述碳酸铵溶液的pH为8.0~10.0。
- 根据权利要求1所述的一种高纯度碱式碳酸铜的制备方法,其特征在于:所述含铜化合物包括氧化铜、氢氧化铜和所述普通碱式碳酸铜的一种或多种。
- 根据权利要求1所述的一种高纯度碱式碳酸铜的制备方法,其特征在于:所述碳酸铵溶液与所述含铜化合物的物质的量之比为1.1:1~4.5:1。
- 根据权利要求1所述的一种高纯度碱式碳酸铜的制备方法,其特征在于:所述水浴温度为10~70℃。
- 根据权利要求1所述的一种高纯度碱式碳酸铜的制备方法,其特征在于:所述水浴搅拌速率为100~600r/min,搅拌时间为15~300min。
- 根据权利要求1所述的一种高纯度碱式碳酸铜的制备方法,其特征在于:水与所述铜基前驱体的重量比为2:1~10:1。
- 根据权利要求1所述的一种高纯度碱式碳酸铜的制备方法,其特征在于:所述S3与S4的负压压强均为-0.001~-0.1MPa。
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US4659555A (en) * | 1984-05-12 | 1987-04-21 | Th. Goldschmidt Ag 03 | Process for the preparation of basic copper carbonate |
KR20090120768A (ko) * | 2008-05-20 | 2009-11-25 | 주식회사 태원 | 염화구리 폐액을 이용한 염기성 탄산구리 제조방법 |
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