CN102115049B - Method for preparing barium phosphate and co-producing ammonium chloride by using barium chloride waste residues - Google Patents
Method for preparing barium phosphate and co-producing ammonium chloride by using barium chloride waste residues Download PDFInfo
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- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 title claims abstract description 67
- 229910001626 barium chloride Inorganic materials 0.000 title claims abstract description 66
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 239000002699 waste material Substances 0.000 title claims abstract description 38
- 235000019270 ammonium chloride Nutrition 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 19
- WAKZZMMCDILMEF-UHFFFAOYSA-H barium(2+);diphosphate Chemical compound [Ba+2].[Ba+2].[Ba+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O WAKZZMMCDILMEF-UHFFFAOYSA-H 0.000 title abstract description 22
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 45
- CJDPJFRMHVXWPT-UHFFFAOYSA-N barium sulfide Chemical compound [S-2].[Ba+2] CJDPJFRMHVXWPT-UHFFFAOYSA-N 0.000 claims abstract description 36
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000004254 Ammonium phosphate Substances 0.000 claims abstract description 16
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims abstract description 16
- 235000019289 ammonium phosphates Nutrition 0.000 claims abstract description 16
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 239000012065 filter cake Substances 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 239000000047 product Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 15
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 5
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 2
- 229940045511 barium chloride Drugs 0.000 claims 10
- QRWOYKNKEPUYJG-UHFFFAOYSA-D barium(2+);[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Ba+2].[Ba+2].[Ba+2].[Ba+2].[Ba+2].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O.[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O QRWOYKNKEPUYJG-UHFFFAOYSA-D 0.000 claims 5
- 239000013078 crystal Substances 0.000 claims 1
- 238000004821 distillation Methods 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 238000010298 pulverizing process Methods 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 11
- 239000000126 substance Substances 0.000 abstract description 3
- 239000002893 slag Substances 0.000 description 12
- 239000007789 gas Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 4
- -1 barium sulfide Hydrogen Chemical class 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- MVXMNHYVCLMLDD-UHFFFAOYSA-N 4-methoxynaphthalene-1-carbaldehyde Chemical compound C1=CC=C2C(OC)=CC=C(C=O)C2=C1 MVXMNHYVCLMLDD-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- LHQWDZSUXOBDOJ-UHFFFAOYSA-N calcium;cyanamide Chemical compound [Ca].NC#N LHQWDZSUXOBDOJ-UHFFFAOYSA-N 0.000 description 1
- LBVNUQQORDPZCR-UHFFFAOYSA-N calcium;sulfane Chemical compound S.[Ca] LBVNUQQORDPZCR-UHFFFAOYSA-N 0.000 description 1
- YAECNLICDQSIKA-UHFFFAOYSA-L calcium;sulfanide Chemical compound [SH-].[SH-].[Ca+2] YAECNLICDQSIKA-UHFFFAOYSA-L 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- KIUSKNGNTPKJQE-UHFFFAOYSA-N diazanium dihydrogen phosphate chloride Chemical compound [NH4+].[NH4+].[Cl-].OP(O)([O-])=O KIUSKNGNTPKJQE-UHFFFAOYSA-N 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
本发明提供了用氯化钡废渣制备磷酸钡联产氯化氨的方法，所述氯化钡废渣为盐酸与硫化钡反应制备硫脲所得的废渣，将氯化钡废渣充分溶解于水，与盐酸混合反应，得到含氯化钡的溶液；含氯化钡的溶液与磷酸氨混合反应，得到生成磷酸钡和氯化氨；经过滤，得到磷酸钡滤饼和含氯化氨的溶液；将磷酸钡滤饼洗涤、粉碎和干燥后，得到磷酸钡产品；所得的含氯化氨的溶液蒸馏为氯化氨过饱和溶液，使氯化氨结晶析出，得到氯化氨产品。该方法操作简单，设备投资少，并将硫化钡废渣中的有效成分转化为工业上可以利用的物质，是一个经济适用的方法。The present invention provides a method for preparing barium phosphate and co-producing ammonium chloride using barium chloride waste residue, wherein the barium chloride waste residue is the waste residue obtained by reacting hydrochloric acid with barium sulfide to prepare thiourea, the barium chloride waste residue is fully dissolved in water, mixed with hydrochloric acid for reaction, and a solution containing barium chloride is obtained; the solution containing barium chloride is mixed with ammonium phosphate for reaction, and barium phosphate and ammonium chloride are generated; after filtration, a barium phosphate filter cake and an ammonium chloride-containing solution are obtained; the barium phosphate filter cake is washed, crushed and dried to obtain a barium phosphate product; the obtained ammonium chloride-containing solution is distilled into an ammonium chloride supersaturated solution, and the ammonium chloride is crystallized and precipitated to obtain an ammonium chloride product. The method is simple to operate, requires little equipment investment, and converts the effective components in the barium sulfide waste residue into substances that can be used industrially, and is an economical and applicable method.
Description
技术领域 technical field
本发明涉及无机化工硫脲制造的三废治理和利用技术领域，尤其是用氯化钡废渣制备磷酸钡联产氯化氨的方法, 所述用氯化钡废渣为盐酸与硫化钡反应制备硫脲所得的废渣。 The present invention relates to the technical field of the treatment and utilization of the three wastes in the manufacture of inorganic chemical thiourea, especially the method for preparing barium phosphate to co-produce ammonium chloride by using barium chloride waste residue. The resulting waste residue.
背景技术 Background technique
硫脲的生产方法很多，其中最传统方法是利用硫化钡与盐酸反应生成硫化氢气体和氯化钡沉淀，硫化氢气体经石灰乳负压吸收制得硫化氢钙溶液，而后再与氰氨化钙反应，硫氢化钙与氰氨化钙的摩尔比为1∶5，在不断搅拌下，反应温度为(80±5)℃，反应时间为3h，经负压过滤，即可生成硫脲液体，再经蒸发、过滤、冷却、结晶，即得晶体硫脲，离心脱水干燥即得成品。反应方程式如下： There are many production methods of thiourea, the most traditional method is to use barium sulfide and hydrochloric acid to react to generate hydrogen sulfide gas and barium chloride precipitation, hydrogen sulfide gas is absorbed by lime milk under negative pressure to prepare calcium hydrogen sulfide solution, and then react with cyanamide Calcium reaction, the molar ratio of calcium hydrosulfide to calcium cyanamide is 1:5, under constant stirring, the reaction temperature is (80±5)°C, the reaction time is 3h, and the thiourea liquid can be generated by negative pressure filtration , and then evaporated, filtered, cooled, and crystallized to obtain crystalline thiourea, which was then dried by centrifugal dehydration to obtain the finished product. The reaction equation is as follows:
BaS+2HCl→BaC12+H2S↑ BaS+2HCl→BaC12+H2S↑
CaO+H2O→Ca(OH)2 CaO+H2O→Ca(OH)2
2H2S+Ca(OH)2→Ca(SH)2+2H2O 2H 2 S+Ca(OH) 2 →Ca(SH) 2 +2H 2 O
2CaCN2+Ca(SH2)2+6H2O→2(NH2)2CS+3Ca(OH)2 2CaCN 2 +Ca(SH 2 ) 2 +6H 2 O→2(NH 2 ) 2 CS+3Ca(OH) 2
上述方法生产硫脲，其主要的工业废渣就是氯化钡废渣，据分析，氯化钡废渣中还含有大量的硫化钡。 Said method produces thiourea, and its main industrial waste residue is exactly barium chloride waste residue, and according to analysis, also contains a large amount of barium sulfide in the barium chloride waste residue.
发明内容 Contents of the invention
盐酸与硫化钡反应制备硫脲所得的废渣即为本发明所述氯化钡废渣，其主要成分为氯化钡，也含有大量的硫化钡，本发明提供用上述氯化钡废渣制备普通磷酸钡和氯化氨的方法。该方法操作简单，设备投资少，并将氯化钡废渣中的有效成分转化为工业上可以利用的物质，是一个经济适用的方法。 The waste residue that hydrochloric acid reacts with barium sulfide to prepare thiourea gained is barium chloride waste residue described in the present invention, and its main component is barium chloride, also contains a large amount of barium sulfide, and the present invention provides and prepares common barium phosphate with above-mentioned barium chloride waste residue and ammonium chloride method. The method is simple in operation, less in equipment investment, and is an economical and applicable method for converting the active components in the barium chloride waste residue into industrially utilizable substances.
本发明的技术方案如下：用氯化钡废渣制备磷酸钡联产氯化氨的方法，所述用氯化钡废渣为盐酸与硫化钡反应制备硫脲所得的废渣，包括如下具体步骤: Technical scheme of the present invention is as follows: prepare the method for barium phosphate co-production ammonium chloride with barium chloride waste residue, described use barium chloride waste residue to prepare the waste residue of thiourea gained for hydrochloric acid and barium sulfide reaction, comprise following concrete steps:
步骤A:将氯化钡废渣充分溶解于水，得到主要含氯化钡和硫化钡的溶液，折算其中硫化钡的摩尔含量； Step A: the barium chloride waste residue is fully dissolved in water to obtain a solution mainly containing barium chloride and barium sulfide, and convert the molar content of barium sulfide wherein;
步骤B:将步骤A所得的主要含氯化钡和硫化钡溶液与过量盐酸混合，使硫化钡的摩尔含量与氯化氢的摩尔含量之比为1:1.6-2.4，盐酸与硫化钡反应生成氯化钡和硫化氢，硫化氢气体从溶液中逸出后，得到含氯化钡的溶液，逸出硫化氢气体通入氢氧化钠溶液中吸收，以免污染环境； Step B: the main solution containing barium chloride and barium sulfide obtained in step A is mixed with excess hydrochloric acid, so that the ratio of the molar content of barium sulfide to the molar content of hydrogen chloride is 1:1.6-2.4, and hydrochloric acid reacts with barium sulfide to generate chloride Barium and hydrogen sulfide, after the hydrogen sulfide gas escapes from the solution, a solution containing barium chloride is obtained, and the escaped hydrogen sulfide gas is passed into the sodium hydroxide solution for absorption, so as not to pollute the environment;
步骤C:将步骤B所得的含氯化钡和少量盐酸的溶液与磷酸氨混合，使氯化钡与磷酸氨的物质的摩尔含量之比为3:1.6-2.4；磷酸氨与氯化钡反应，生成磷酸钡和氯化氨；经过滤，得到磷酸钡滤饼和含氯化氨的溶液； Step C: the solution containing barium chloride and a small amount of hydrochloric acid obtained in step B is mixed with ammonium phosphate, so that the ratio of the molar content of barium chloride and ammonium phosphate is 3:1.6-2.4; ammonium phosphate reacts with barium chloride , generate barium phosphate and ammonium chloride; through filtration, obtain barium phosphate filter cake and the solution containing ammonium chloride;
步骤D:将磷酸钡滤饼洗涤、粉碎和干燥后，得到磷酸钡产品； Step D: After the barium phosphate filter cake is washed, pulverized and dried, the barium phosphate product is obtained;
步骤E：将步骤C所得的含氯化氨的溶液蒸馏为氯化氨过饱和溶液，使氯化氨结晶析出，得到氯化氨产品。 Step E: distilling the ammonium chloride-containing solution obtained in step C into a supersaturated ammonium chloride solution to precipitate ammonium chloride crystals to obtain an ammonium chloride product.
本发明所述用氯化钡废渣制备磷酸钡联产氯化氨的方法，所涉及的化学反应原理为： The method for preparing barium phosphate co-production ammonium chloride with barium chloride waste slag of the present invention, involved chemical reaction principle is:
BaS+2HCl=====BaCl2+H2S； BaS+2HCl=====BaCl 2 +H 2 S;
3BaCl2+2(NH4)3PO4=====Ba3( PO4)2↓+6 NH4Cl。 3BaCl 2 +2(NH4) 3 PO 4 =====Ba3( PO 4 ) 2↓ +6 NH4Cl.
本发明的有益效果为：本发明所述用氯化钡废渣制备磷酸钡联产氯化氨的方法，该方法操作简单，设备投资少，并将氯化钡废渣中的有效成分转化为工业上可以利用的物质，是一个经济适用的方法。 The beneficial effects of the present invention are: the method for preparing barium phosphate to co-produce ammonium chloride with barium chloride waste slag described in the present invention has simple operation, less equipment investment, and can convert the active ingredients in barium chloride waste slag into industrial available material, is an economical and applicable method.
具体实施方式 Detailed ways
实施例1： Example 1:
用氯化钡废渣制备磷酸钡联产氯化氨的方法，所述用氯化钡废渣为盐酸与硫化钡反应制备硫脲所得的废渣，包括如下具体步骤: Prepare the method for barium phosphate co-production ammonium chloride with barium chloride waste slag, described use barium chloride waste slag to prepare the waste slag of thiourea gained by reacting hydrochloric acid and barium sulfide, comprise following specific steps:
步骤A:将500kg氯化钡废渣充分溶解于水，得到主要含氯化钡和硫化钡的溶液，折算其中硫化钡的摩尔含量； Step A: 500kg barium chloride waste residue is fully dissolved in water, obtains the solution that mainly contains barium chloride and barium sulfide, converts the molar content of wherein barium sulfide;
步骤B:将步骤A所得的主要含氯化钡和硫化钡溶液与盐酸混合，使硫化钡的摩尔含量与氯化氢的摩尔含量之比为1:1.6，盐酸与硫化钡反应生成氯化钡和硫化氢，硫化氢气体从溶液中逸出后，得到含氯化钡的溶液，逸出硫化氢气体通入氢氧化钠溶液中吸收，以免污染环境； Step B: the main solution containing barium chloride and barium sulfide obtained in step A is mixed with hydrochloric acid, so that the ratio of the molar content of barium sulfide to the molar content of hydrogen chloride is 1:1.6, and hydrochloric acid reacts with barium sulfide to generate barium chloride and barium sulfide Hydrogen, after the hydrogen sulfide gas escapes from the solution, a solution containing barium chloride is obtained, and the escaped hydrogen sulfide gas is passed into the sodium hydroxide solution for absorption, so as not to pollute the environment;
步骤C:将步骤B所得的含氯化钡的溶液与磷酸氨混合，使氯化钡与磷酸氨的物质的摩尔含量之比为3:1.6；磷酸氨与氯化钡反应，生成磷酸钡和氯化氨；经过滤，得到磷酸钡滤饼和含氯化氨的溶液； Step C: the barium chloride-containing solution obtained in step B is mixed with ammonium phosphate, so that the ratio of the molar content of barium chloride and ammonium phosphate is 3:1.6; ammonium phosphate reacts with barium chloride to generate barium phosphate and Ammonium chloride; after filtration, obtain barium phosphate filter cake and the solution containing ammonium chloride;
步骤D:将磷酸钡滤饼洗涤、粉碎和干燥后，得到磷酸钡产品； Step D: After the barium phosphate filter cake is washed, pulverized and dried, the barium phosphate product is obtained;
步骤E：将步骤C所得的含氯化氨的溶液蒸馏为氯化氨过饱和溶液，使氯化氨结晶析出，得到氯化氨产品。 Step E: distilling the ammonium chloride-containing solution obtained in step C into a supersaturated ammonium chloride solution to precipitate ammonium chloride crystals to obtain an ammonium chloride product.
实施例2： Example 2:
用氯化钡废渣制备磷酸钡联产氯化氨的方法，所述用氯化钡废渣为盐酸与硫化钡反应制备硫脲所得的废渣，包括如下具体步骤: Prepare the method for barium phosphate co-production ammonium chloride with barium chloride waste slag, described use barium chloride waste slag to prepare the waste slag of thiourea gained by reacting hydrochloric acid and barium sulfide, comprise following specific steps:
步骤A:将500kg氯化钡废渣充分溶解于水，得到主要含氯化钡和硫化钡的溶液，折算其中硫化钡的摩尔含量； Step A: 500kg barium chloride waste residue is fully dissolved in water, obtains the solution that mainly contains barium chloride and barium sulfide, converts the molar content of wherein barium sulfide;
步骤B:将步骤A所得的主要含氯化钡和硫化钡溶液与盐酸混合，使硫化钡的摩尔含量与氯化氢的摩尔含量之比为1:2，盐酸与硫化钡反应生成氯化钡和硫化氢，硫化氢气体从溶液中逸出后，得到含氯化钡的溶液，逸出硫化氢气体通入氢氧化钠溶液中吸收，以免污染环境； Step B: the main solution containing barium chloride and barium sulfide obtained in step A is mixed with hydrochloric acid, so that the ratio of the molar content of barium sulfide to the molar content of hydrogen chloride is 1:2, and hydrochloric acid reacts with barium sulfide to generate barium chloride and barium sulfide Hydrogen, after the hydrogen sulfide gas escapes from the solution, a solution containing barium chloride is obtained, and the escaped hydrogen sulfide gas is passed into the sodium hydroxide solution for absorption, so as not to pollute the environment;
步骤C:将步骤B所得的含氯化钡的溶液与磷酸氨混合，使氯化钡与磷酸氨的物质的摩尔含量之比为3:2；磷酸氨与氯化钡反应，生成磷酸钡和氯化氨；经过滤，得到磷酸钡滤饼和含氯化氨的溶液； Step C: the barium chloride-containing solution obtained in step B is mixed with ammonium phosphate, so that the ratio of the molar content of barium chloride to ammonium phosphate is 3:2; ammonium phosphate reacts with barium chloride to generate barium phosphate and Ammonium chloride; after filtration, obtain barium phosphate filter cake and the solution containing ammonium chloride;
步骤D:将磷酸钡滤饼洗涤、粉碎和干燥后，得到磷酸钡产品； Step D: After the barium phosphate filter cake is washed, pulverized and dried, the barium phosphate product is obtained;
步骤E：将步骤C所得的含氯化氨的溶液蒸馏为氯化氨过饱和溶液，使氯化氨结晶析出，得到氯化氨产品。 Step E: distilling the ammonium chloride-containing solution obtained in step C into a supersaturated ammonium chloride solution to precipitate ammonium chloride crystals to obtain an ammonium chloride product.
实施例3： Example 3:
用500kg氯化钡废渣制备磷酸钡联产氯化氨的方法，所述用氯化钡废渣为盐酸与硫化钡反应制备硫脲所得的废渣，包括如下具体步骤: Prepare the method for barium phosphate co-production ammonium chloride with 500kg barium chloride waste slag, described use barium chloride waste slag to prepare the waste slag of thiourea gained for hydrochloric acid and barium sulfide reaction, comprise following specific steps:
步骤A:将氯化钡废渣充分溶解于水，得到主要含氯化钡和硫化钡的溶液，折算其中硫化钡的摩尔含量； Step A: the barium chloride waste residue is fully dissolved in water to obtain a solution mainly containing barium chloride and barium sulfide, and convert the molar content of barium sulfide wherein;
步骤B:将步骤A所得的主要含氯化钡和硫化钡溶液与盐酸混合，使硫化钡的摩尔含量与氯化氢的摩尔含量之比为1: 2.4，盐酸与硫化钡反应生成氯化钡和硫化氢，硫化氢气体从溶液中逸出后，得到含氯化钡的溶液，逸出硫化氢气体通入氢氧化钠溶液中吸收，以免污染环境； Step B: the main solution containing barium chloride and barium sulfide obtained in step A is mixed with hydrochloric acid, so that the ratio of the molar content of barium sulfide to the molar content of hydrogen chloride is 1: 2.4, and hydrochloric acid reacts with barium sulfide to generate barium chloride and barium sulfide Hydrogen, after the hydrogen sulfide gas escapes from the solution, a solution containing barium chloride is obtained, and the escaped hydrogen sulfide gas is passed into the sodium hydroxide solution for absorption, so as not to pollute the environment;
步骤C:将步骤B所得的含氯化钡的溶液与磷酸氨混合，使氯化钡与磷酸氨的物质的摩尔含量之比为3: 2.4；磷酸氨与氯化钡反应，生成磷酸钡和氯化氨；经过滤，得到磷酸钡滤饼和含氯化氨的溶液； Step C: the barium chloride-containing solution obtained in step B is mixed with ammonium phosphate, so that the ratio of the molar content of barium chloride and ammonium phosphate is 3: 2.4; ammonium phosphate reacts with barium chloride to generate barium phosphate and ammonium phosphate Ammonium chloride; after filtration, obtain barium phosphate filter cake and the solution containing ammonium chloride;
步骤D:将磷酸钡滤饼洗涤、粉碎和干燥后，得到磷酸钡产品； Step D: After the barium phosphate filter cake is washed, pulverized and dried, the barium phosphate product is obtained;
步骤E：将步骤C所得的含氯化氨的溶液蒸馏为氯化氨过饱和溶液，使氯化氨结晶析出，得到氯化氨产品。 Step E: distilling the ammonium chloride-containing solution obtained in step C into a supersaturated ammonium chloride solution to precipitate ammonium chloride crystals to obtain an ammonium chloride product.
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，其架构形式能够灵活多变，可以派生系列产品。只是做出若干简单推演或替换，都应当视为属于本发明由所提交的权利要求书确定的专利保护范围。 The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, its architecture can be flexible and changeable, and series of products can be derived. Just making some simple deductions or replacements should be deemed to belong to the patent protection scope of the present invention determined by the submitted claims.
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| CN85107743A (en) * | 1985-10-18 | 1986-10-15 | 太原工业大学 | Co-producing sulfuric acid barium and magnesian hydrochloric acid cyclic method |
| CN87104108A (en) * | 1987-06-05 | 1988-12-14 | 福建省化学工业科学技术研究所 | Method for producing barium carbonate |
| CN1062886A (en) * | 1990-12-27 | 1992-07-22 | 天津市无机化学工业研究所 | Hydrated barta and barium carbonate associating manufacture method |
| CN101823755A (en) * | 2009-04-13 | 2010-09-08 | 王嘉兴 | Method for preparing precipitated barium sulfate and co-producing hydrochloric acid by using barium slag |
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| CN85107743A (en) * | 1985-10-18 | 1986-10-15 | 太原工业大学 | Co-producing sulfuric acid barium and magnesian hydrochloric acid cyclic method |
| CN87104108A (en) * | 1987-06-05 | 1988-12-14 | 福建省化学工业科学技术研究所 | Method for producing barium carbonate |
| CN1062886A (en) * | 1990-12-27 | 1992-07-22 | 天津市无机化学工业研究所 | Hydrated barta and barium carbonate associating manufacture method |
| CN101823755A (en) * | 2009-04-13 | 2010-09-08 | 王嘉兴 | Method for preparing precipitated barium sulfate and co-producing hydrochloric acid by using barium slag |
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