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磷石膏配料碳热熔融还原硫逸出及熔渣物相分析

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无机盐工业 2024年第2期56卷 86-94页

作者：王艳语谷守玉侯翠红井红权关红玲张晖郑州大学化工学院国家钙镁磷复合肥技术研究推广中心河南郑州450001 云南云天化环保科技有限公司云南昆明650000

基于配料计算在磷石膏中添加硅、铝、镁等,使其渣系满足矿渣棉生产对酸度系数、氢离子指数、黏度系数的要求。通过热重分析、熔融特性的测定及高温还原焙烧/熔融实验,探究了磷石膏配料在高温还原过程中硫逸出及熔渣的物相结构。结果表明... 详细信息

基于配料计算在磷石膏中添加硅、铝、镁等,使其渣系满足矿渣棉生产对酸度系数、氢离子指数、黏度系数的要求。通过热重分析、熔融特性的测定及高温还原焙烧/熔融实验,探究了磷石膏配料在高温还原过程中硫逸出及熔渣的物相结构。结果表明:碳的加入可以促进磷石膏分解,加入量以n(C)/n(S)=0.5为宜;还原剂(石墨、无烟煤、焦炭)及配料的加入均可以降低磷石膏体系的熔融特征温度,CaO-MgO-SiO_(2)-Al2O_(3)四元相图计算表明配料体系在1255.73℃时形成最低共熔点。磷石膏及其配料在高温焙烧过程中的物相演变规律表明,CaS为CaSO_(4)还原过程的中间产物,配料中加入的SiO_(2)可结合更多的CaO促进CaS和CaSO_(4)反应的进行。还原熔融实验表明,n(C)/n(S)对熔渣硫含量及体系脱硫率影响较大。以焦炭为还原剂,磷石膏配料的酸度系数Mk=1.4、pH=4.85、n(C)/n(S)为0.5时,采用刚玉坩埚在1450℃下高温熔融20min后,脱硫率可达99.05%,硫高效逸出的同时形成的熔渣呈非晶态,具有良好的玻璃相结构。

关键词：磷石膏配料热分析脱硫率物相演变

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pH响应材料及其在智能肥料中的应用

化工进展 2024年第8期43卷 4477-4489页

作者：王洋张苗苗吕阳侯翠红危常州马文奇张福锁申建波养分资源高效利用全国重点实验室绿色智能肥料创新农业农村部重点实验室植物-土壤相互作用教育部重点实验室中国农业大学资源与环境学院国家农业绿色发展研究院北京100193 国家钙镁磷复合肥技术研究推广中心教育部先进功能材料制造工程研究中心郑州大学化工学院河南郑州450001 石河子大学农学院新疆石河子832003 河北农业大学资源与环境科学学院河北保定071001

肥料行业的发展正从传统化肥向新型肥料转变。肥料使用在保障粮食安全方面发挥了重大作用,但传统肥料利用率低、养分损失大、环境风险加剧,大多数肥料产品不能按照作物的营养需求规律实现养分精准供应。而智能肥料的研发与创新为解决该... 详细信息

肥料行业的发展正从传统化肥向新型肥料转变。肥料使用在保障粮食安全方面发挥了重大作用,但传统肥料利用率低、养分损失大、环境风险加剧,大多数肥料产品不能按照作物的营养需求规律实现养分精准供应。而智能肥料的研发与创新为解决该问题提供了有效途径,在时空上更精准匹配作物对养分的需求。本文系统综述了pH响应材料的类型、来源及响应机理,探讨pH响应材料的化学结构对pH响应行为的影响,提出pH响应材料促进根肥互馈的观点,剖析pH响应材料在智能肥料中的应用前景,进一步明确pH响应材料在绿色智能肥料创制领域的应用潜力、未来的研究方向及面临的挑战。文章以根肥互馈理念为核心,综合考虑pH响应材料与作物根际酸化效应,设计并利用pH响应材料把根分泌物与智能肥料有机连接,提出开发pH响应肥料的创新思路,指出根肥互馈是协同肥料养分释放和作物养分吸收的关键,提出基于根肥互馈原理匹配作物养分需求规律且具有环境友好性的绿色智能肥料将成为新型肥料的发展趋势。

关键词： pH响应材料聚合物化学过程凝胶 pH响应肥料根肥互馈

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磷矿资源绿色全量利用技术研究现状及突破思路

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化学与生物工程 2024年第5期41卷 1-8页

作者：苗俊艳齐帅亮侯翠红马航谷守玉周凌翔普正仙屈凌波郑州大学化工学院国家钙镁磷复合肥技术研究推广中心河南郑州450001 云南云天化股份有限公司云南昆明650228

磷矿是一种战略性、不可再生的矿产资源。介绍了世界及我国磷矿资源的概况,指出了我国磷矿资源利用中存在的主要问题;从磷矿加工技术、磷矿加工副产物资源(如黄磷渣、磷尾矿、萃余酸、淤渣酸、磷石膏)的高效利用、磷矿伴生资源综合利用... 详细信息

磷矿是一种战略性、不可再生的矿产资源。介绍了世界及我国磷矿资源的概况,指出了我国磷矿资源利用中存在的主要问题;从磷矿加工技术、磷矿加工副产物资源(如黄磷渣、磷尾矿、萃余酸、淤渣酸、磷石膏)的高效利用、磷矿伴生资源综合利用等3方面阐述了磷矿资源绿色全量利用技术的研究现状,并提出了磷矿资源绿色全量利用的突破思路。

关键词：磷矿资源绿色全量利用黄磷渣磷尾矿磷矿伴生资源

Genetic variants in patients with LVNC and ventricular tachyarrhythmias

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中国循环杂志 2016年第Z1期31卷 -页

作者： Nana Liu Huaibing Cheng cuihong hou Jielin Pu Shu Zhang State Key Laboratory of Cardiovascular Diseases FuwaiHospital NationalCenter for Cardiovascular Diseases Chinese Academy of Medical Sciences and Peking Union MedicalColege Beijing China

Objective Left ventricular noncompaction of the myocardium (LVNC) has been recognized as a genetically heterogeneous cardiomyopathy. This study was aimed to investigate the gene mutations in a Chinese population with ... 详细信息

关键词：基因人口心肌亚洲大陆世系人群

Magnesium-fortified phosphate fertilizers improve nutrient uptake and plant growth without reducing phosphorus availability

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Pedosphere 2022年第5期32卷 744-751页

作者： Zhenya LU Yanyan WANG Fien DEGRYSE Chengdong HUANG cuihong hou Liangquan WU Rongfeng JIANG Michael J.MCLAUGHLIN Fusuo ZHANG College of Resources and Environmental Sciences National Academy of Agriculture Green DevelopmentKey Laboratory of Plant-Soil InteractionsMinistry of EducationChina Agricultural UniversityBeijing 100193(China) Department of Pomology College of HorticultureChina Agricultural UniversityBeijing 100193(China) Fertilizer Technology Research Centre School of AgricultureFood and WineUniversity of AdelaidePMB 1Glen Osmond SA 5064(Australia) School of Chemical Engineering Zhengzhou UniversityZhengzhou 450001(China) International Magnesium Institute Fujian Agriculture and Forestry UniversityFuzhou 350002(China)

Magnesium(Mg)deficiency can significantly limit crop yield and *** application of straight Mg fertilizer is unattractive because of additional labor ***,bulk blending Mg with other macronutrient fertilizers is also a suboptimal solution because bulk blended fertilizers often yield poor nutrient *** rapid and economical alternative to alleviating Mg deficiency is to co-granulate macronutrient fertilizers with ***,few commercial products have implemented this *** of the barriers hindering the production of Mg-fortified phosphorus(P)fertilizers is the assumption that precipitation of P with Mg will reduce P *** this study,four Mg compounds,anhydrous magnesium sulfate(MgSO_(4)),magnesium oxide(MgO),anhydrous magnesium chloride(MgCl_(2)),and dolomite(CaMg(CO_(3))_(2)),were co-granulated with mono-ammonium phosphate(MAP),and their granule strength,Mg and P availabilities,and agronomic effectiveness were *** showed that there were no significant differences in P solubility between Mg-fortified MAP and MAP treatments.X-ray diffraction(XRD)indicated that the Mg species after co-granulation were boussingaultite(Mg(NH_(4))_(2)(SO_(4))_(2)·6H_(2)O),schertelite(Mg(NH_(4))_(2)H_(2)(PO_(4))_(2)·4H_(2)O),magnesium hydrogen phosphate(Mg(H_(2)PO_(4))_(2)),and dolomite(CaMg(CO_(3))_(2)).A pot experiment using an acidic soil demonstrated an average 9.6-fold increase in shoot Mg uptake,3.0-fold increase in shoot P uptake,and 3.2-fold increase in soybean shoot dry matter in Mg-fortified MAP treatments,compared to those in MAP *** current study provides a simple,effective,and low-cost approach for the addition of Mg to macronutrient fertilizers,to minimize Mg deficiency.

关键词： agronomic effectiveness crop growth magnesium deficiency mono-ammonium phosphate macronutrient fertilizer P solubility X-ray diffraction(XRD)

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河南省化工产业集聚区绿色发展研究

河南化工 2024年第4期41卷 14-16,28页

作者：苗俊艳侯翠红李涛谷守玉关红玲赵玉芬屈凌波郑州大学化工学院国家钙镁磷复合肥技术研究推广中心河南郑州450001

结合河南省现代化工产业发展现状以及“十四五”期间国家和河南省对化工行业发展所提出的要求,对河南省濮阳、济源、焦作、沁阳、鹤壁宝山、永城6个现代化工产业集聚区进行调研。分析了“双碳”目标下河南化工产业集聚区绿色发展存在的... 详细信息

结合河南省现代化工产业发展现状以及“十四五”期间国家和河南省对化工行业发展所提出的要求,对河南省濮阳、济源、焦作、沁阳、鹤壁宝山、永城6个现代化工产业集聚区进行调研。分析了“双碳”目标下河南化工产业集聚区绿色发展存在的问题及对策,并提出了发展建议。以市场需求和国家产业政策为导向,结构调整和产业升级为主线,科技创新为动力,技术改造为手段,推动化工产业集聚区绿色高质量发展。

关键词：化工产业集聚区绿色发展

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食用菌菌渣基质化利用研究进展

河南化工 2024年第10期41卷 23-26页

作者：谷守玉唐雪王柯雯张钟灿荆思雨关红玲侯翠红郑州大学化工学院河南郑州450001

菌渣具有独特的理化性质和丰富的养分,基质化再利用的潜力显著。与此同时,我国食用菌产业产生的菌渣数量庞大,对于基质材料的市场需求也相当旺盛。随着人们对生态环境保护和可持续发展的日益重视,菌渣的基质化利用显得尤为重要。综述了... 详细信息

菌渣具有独特的理化性质和丰富的养分,基质化再利用的潜力显著。与此同时,我国食用菌产业产生的菌渣数量庞大,对于基质材料的市场需求也相当旺盛。随着人们对生态环境保护和可持续发展的日益重视,菌渣的基质化利用显得尤为重要。综述了菌渣的基本理化性质,列举了菌渣在基质化方面的几种应用以及当前菌渣基质化利用中所面临的若干问题。

关键词：菌渣食用菌基质化理化性质

Study on Preparation Technology and Properties of Manganese Ammonium Phosphate

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Study on Preparation Technology and Properties of Manganese ...

Study on acid decomposing low grade phosphate rock resources process

河南省化学会2016年学术年会

作者： Wang Yan Ji Tingting Du Ruimin hou cuihong School of Chemical Engineering and Energy Zhengzhou University

Manganese ammonium phosphate is a slow-release compound having a divalent metal including manganese forms ammonium phosphate. It is very slightly soluble in water(25℃,0.0038g/100 m L water) which includes effective sources of nitrogen, phosphorus, and a trace element manganese, and can be used as Micronutrient fertilizer. It can be mixed with instant fertilizer by a certain percentage and provides fertilizer for seedling and plants throughout the growing season, to ensure that agricultural production, quality, and improve the economic efficiency of agriculture. Currently, at home and abroad, although manganese ammonium phosphate has been synthesized by solid-phase and liquid-phase reaction, specific conditions of production process have been not *** acid, manganese sulfate and ammonium sulfate were taken as raw materials to synthetize manganese ammonium phosphate by liquid-phase reaction. With orthogonal experiment, the influences of nitrogen-manganese ratio, phosphorus- manganese ratio, the p H value, the reaction temperature, the stirring speed and the reaction time on the purity and yield of the product were investigated. Nitrogen content of solid products and the repeated experiments were designed. The results indicated that, the optimal operation condition was as follows: the reaction temperature was 40℃, the p H value was 6.5, the stirring speed was300r/min, the reaction time was 60 min and the n(P):n(N):n(Mn) was 1.2:3.0:1. Under these conditions, the yield of manganese ammonnium phosphate was more than 97% and the purity of magnesium ammonium phosphate was greater than 98%. A recycling process was carried out to save cost and protect the environment in which the concentration of ammonia was changed and the mother liquor of each reaction as a raw material for the next reaction. With circulating, the consumption of ammonia was gradually reduced, and a relatively high purity of the *** solubility, the bulk density, the p H value and the ang

关键词： ammonium manganese phosphate preparation process nitrogen content thermal decomposition kinetics solubility

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Study on acid decomposing low grade phosphate rock resources...