Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing chelating agent in construction industry
The invention discloses a method for preparing a chelating agent in the construction industry. The method comprises the following steps: adding 50-60 parts by weight of water into a first reaction kettle, then carrying out stirring by using a first stirrer, heating inlet water by utilizing a heater at the same time, after the inlet water is heated, adding 1-15 parts by weight of diphenyl thioureaunder the condition that the water in the first reaction kettle is in a stirring state, carrying out sufficient and uniform stirring, slowly adding 5-15 parts by weight of hydroxyethanediphosphonic acid sodium salt, carrying out a sufficient reaction, and after completion of the reaction, carrying out standing so as to obtain an intermediate product A. The method provided by the invention has thefollowing beneficial effects: the method is applicable to manufacturing building plates by utilizing solid wastes; different kinds of metal chelating agents in plate raw materials can be combined andcompounded to obtain a product with an highly-efficient heavy metal removal rate effect; the method is low in treatment cost, friendly to the environment, safe and non-toxic; a product is applicable to large-area use in a plurality of fields; the activation state of the product is converted into a stable state through the chelating effect of heavy metal; and the long-term stability of a stabilizedproduct is improved.
本发明公开了一种建筑行业用于制备螯合剂的方法，包括将第一反应釜中加入50‑60重量份的水，然后利用第一搅拌器进行搅拌，同时利用加热器进水水加热，完成后，使第一反应釜的水在搅拌的状态下，加入1‑15重量份的二苯基硫脲，充分搅拌均匀后缓慢加入5‑15重量份的羟基乙叉二膦酸钠，充分进行反应，反应完全后，静置，得到中间产物A，本发明的有益效果是该种方法，适用于利用固体废弃物制作建筑板材时使用，可以将板材原料中不同种类的金属螯合剂相结合复配，得到高效的重金属去除率效果的产品，处理成本低、环保安全无毒，适合于多领域大面积使用，用重金属的螯合作用，使其由活化态转变成稳定态，进而提高稳定化产物的长期稳定性。
Method for preparing chelating agent in construction industry
The invention discloses a method for preparing a chelating agent in the construction industry. The method comprises the following steps: adding 50-60 parts by weight of water into a first reaction kettle, then carrying out stirring by using a first stirrer, heating inlet water by utilizing a heater at the same time, after the inlet water is heated, adding 1-15 parts by weight of diphenyl thioureaunder the condition that the water in the first reaction kettle is in a stirring state, carrying out sufficient and uniform stirring, slowly adding 5-15 parts by weight of hydroxyethanediphosphonic acid sodium salt, carrying out a sufficient reaction, and after completion of the reaction, carrying out standing so as to obtain an intermediate product A. The method provided by the invention has thefollowing beneficial effects: the method is applicable to manufacturing building plates by utilizing solid wastes; different kinds of metal chelating agents in plate raw materials can be combined andcompounded to obtain a product with an highly-efficient heavy metal removal rate effect; the method is low in treatment cost, friendly to the environment, safe and non-toxic; a product is applicable to large-area use in a plurality of fields; the activation state of the product is converted into a stable state through the chelating effect of heavy metal; and the long-term stability of a stabilizedproduct is improved.
本发明公开了一种建筑行业用于制备螯合剂的方法，包括将第一反应釜中加入50‑60重量份的水，然后利用第一搅拌器进行搅拌，同时利用加热器进水水加热，完成后，使第一反应釜的水在搅拌的状态下，加入1‑15重量份的二苯基硫脲，充分搅拌均匀后缓慢加入5‑15重量份的羟基乙叉二膦酸钠，充分进行反应，反应完全后，静置，得到中间产物A，本发明的有益效果是该种方法，适用于利用固体废弃物制作建筑板材时使用，可以将板材原料中不同种类的金属螯合剂相结合复配，得到高效的重金属去除率效果的产品，处理成本低、环保安全无毒，适合于多领域大面积使用，用重金属的螯合作用，使其由活化态转变成稳定态，进而提高稳定化产物的长期稳定性。
Method for preparing chelating agent in construction industry
一种建筑行业用于制备螯合剂的方法
WANG QUNLI (Autor:in) / WANG JIANG (Autor:in) / WANG PING (Autor:in) / YU ZUYING (Autor:in) / WANG HONGJIE (Autor:in) / ZHANG WEI (Autor:in) / WANG HONGGANG (Autor:in)
12.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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