碳酸氢铵除油、除添加剂和提纯的工业技术

doi:10.11962/1006-4990.2019-0456

Abstract

Abstract:

To solve or reduce the caking problem of ammonium bicarbonate,sulfonates and other substances were added in the production of ammonium bicarbonate to promote nucleation,improve the crystalline form of ammonium bicarbonate,and improve the separation of ammonium bicarbonate crystals and mother liquor.However,these additional additives will affect the subsequent industrial usage,and restrict the applying field.Ammonium bicarbonate that meets food additive requirements was obtained using combined technologies,such as pulping and washing,centrifugal separation,air drying,mother liquor deoiling and additive removal etc..The technology has been successfully applied in industrial production to solve the shortage of high purity ammonium bicarbonate and improve the economic benefit of ammonium bicarbonate production enterprises.

Key words: ammonium bicarbonate, food additives, anti-caking agent, sulfonate

CLC Number:

TQ127.13

Wang Guoping,Wang Lijia,Li Gang,Wang Ying,Han Guoying. Industrial technology for removing oil and additives,and purification of ammonium bicarbonate[J]. Inorganic Chemicals Industry, 2020, 52(7): 59-61.

项目	总碱量 w（NH₄HCO₃）/%	w[氯化物（以Cl计）]/%	w[硫的化合物（以SO₄计）]/%	w（不挥发物）/%	w（As）/ %	w[重金属（以 Pb计）]/%	磺酸类防结块剂的定性鉴定	w[亚硝酸盐（以NO₂计）]/%	w[氰化物（以 CN计）]/%
国家标准	99.2~100.5	≤0.003	≤0.007	≤0.05	≤0.000 2	≤0.000 5	阴性	≤0.001	≤0.000 2
提纯前	96.7	0.008	0.012	0.087	0.000 3	0.001	阳性	0.005	0.000 5
提纯后	99.8	<0.001	<0.004	<0.005	<0.000 1	<0.000 1	阴性	<0.001	未检出

序号	项目	单耗	单价	费用/元
一	生产成本
1	碳酸氢铵单耗	1.12 t/t	800元/t	896
2	电耗	55 kW·h/t	0.72元/（kW·h）	39.6
3	蒸汽	0.25 t/t	150元/t	37.5
4	设备折旧			50
5	人工成本			90
6	除杂费用			15
7	包装费	40只/t	2.5元/只	100
8	成本合计			1 228.1
二	销售收入
9	碳酸氢铵	1 t/t	1 800元/t	1 800
10	母液	0.28 m³/t	150元/m³	42
11	收入合计			1 842
三	毛利润
12	销售收入-生产成本			613.9

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Inorganic Acid-Base-Salt Committee of CIESC

Industrial technology for removing oil and additives,and purification of ammonium bicarbonate

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