湿法磷酸原位酸解废弃羽毛制备含氨基酸磷酸一铵

doi:10.19964/j.issn.1006-4990.2022-0707

Abstract

Abstract:

The organization of inorganic fertilizer is the development trend of fertilizer industry in our country.A new idea of preparation of monoammonium phosphate containing amino acid from feather protein by wet process phosphoric acid in situ acid hydrolysis was put forward.Feather protein was transformed into amino acid by wet process phosphoric acid in situ acid hydrolysis，then a new type of fertilizer containing monoammonium phosphate was prepared by neutralization and spray drying.The effects of different mass/volume ratio of feather and wet phosphoric acid and different acid hydrolysis time on the physical properties of monoammonium phosphate were explored.The results showed that monoammonium phosphate prepared under the condition of mass/volume ratio（g/L） of 150 and acid hydrolysis time of 16 h had the best performance，and the amino acid content was up to 6.43%.Compared with monoammonium phosphate，the ratio of water-soluble phosphorus to available phosphorus of monoammonium phosphate containing amino acid was increased by 14.5%，and the content of water-insoluble substances was decreased by 20.73%.The analysis showed that the main reason for the change of water insoluble content was that the formation of NH₄MgPO₄·H₂O in monoammonium phosphate was inhibited.

Key words: feathers, amino acid, wet process of phosphoric acid, monoammonium phosphate, phosphorus utilization rate

CLC Number:

TQ126.35

HE Fuduo, YUAN Yifan, ZHOU Xiaohou, XU Lu, SUN Chongqing, WANG Xinlong, XU Dehua. Preparation of monoammonium phosphate containing amino acid from waste feathers by in situ acid hydrolysis of wet process of phosphoric acid[J]. Inorganic Chemicals Industry, 2023, 55(10): 100-105.

Figures/Tables 12

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References 15

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羽毛与磷酸质量体积比	质量分数/%
羽毛与磷酸质量体积比	P₂O₅	Fe₂O₃	Al₂O₃	MgO	CaO
0	47.81	2.63	1.69	2.02	0.025
20	47.13	2.70	1.69	1.99	0.024
50	46.08	2.65	1.68	1.93	0.034
150	42.87	2.60	1.63	1.84	0.056

羽毛与磷酸质量体积比	质量分数/%
羽毛与磷酸质量体积比	P₂O₅	C	N	Fe₂O₃	Al₂O₃	MgO
0	56.81	0.03	11.11	2.73	1.45	1.79
20	56.60	0.68	11.56	2.91	1.60	2.06
50	55.03	1.80	12.01	2.89	1.81	2.14
150	50.11	4.80	12.94	2.71	1.59	1.81

酸解时间/ h	游离氨基酸质量分数/%
酸解时间/ h	质量体积比为20	质量体积比为50	质量体积比为150
3	0.66	1.51	4.36
6	0.79	1.89	4.90
9	0.94	2.20	5.37
16	0.95	2.25	5.98

酸解时间/ h	游离氨基酸质量分数/%
酸解时间/ h	质量体积比为20	质量体积比为50	质量体积比为150
3	0.76	2.06	4.62
6	0.92	2.43	5.23
9	1.04	2.62	6.15
16	1.11	2.72	6.43
完全消解	1.37	2.93	7.96

酸解时间/ h	质量体积比为20		质量体积比为50		质量体积比为150
酸解时间/ h	酸解度/%	保存度/%	酸解度/%	保存度/%	酸解度/%	保存度/%
3	55.5	95.6	70.3	111.8	58.0	88.9
6	67.2	96.8	82.9	105.6	65.7	89.6
9	75.9	92.3	89.4	97.9	77.3	96.2
16	81.0	97.1	92.8	99.8	80.8	90.3
完全消解	100.0		100.0		100.0

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Preparation of monoammonium phosphate containing amino acid from waste feathers by in situ acid hydrolysis of wet process of phosphoric acid

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酸解时间/h	水不溶物质量分数/%
酸解时间/h	质量体积比为20	质量体积比为50	质量体积普通比为150 磷铵
3	16.14	16.23	16.34	16.16
6	16.12	15.73	14.78
9	16.07	15.38	13.78
16	15.89	13.19	12.81

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