Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Petroleum coumarone water reducing agent and preparation method thereof
The invention relates to a petroleum coumarone water reducing agent and a preparation method thereof. The preparation method comprises the following steps: 1) crushing petroleum coumarone; 2) adding 2-4 parts by weight of concentrated sulfuric acid into a reaction kettle, raising the temperature to 90-95 DEG C, simultaneously starting stirring, and slowly adding 1-2 parts by weight of the crushed petroleum coumarone into the reaction kettle for 0.5-1 hour; 3) after the addition is finished, continuously reacting at 100 DEG C for 0.5-1 hour, and finishing sulfonation reaction to obtain a reactant; and 4) after the sulfonation reaction is completed, discharging reactants into a neutralization kettle, and adding a sodium hydroxide aqueous solution with the concentration of 50% into the neutralization kettle until the reactants are neutral, thereby obtaining the petroleum coumarone water reducing agent. The water-reducing agent is prepared from by-products of the petroleum industry, so that the water-reducing agent is low in cost and high in water-reducing rate and has an early strength effect.
本发明涉及一种石油古马隆减水剂及其制备方法，所述制备方法包括以下步骤：1)、将石油古马隆粉碎；2)、在反应釜中加入2－4重量份的浓硫酸并升温至90‑95℃，同时开动搅拌，并将粉碎后的所述石油古马隆1－2重量份慢慢加入到所述反应釜中，其中，加入时间为0.5－1小时；3)、加入完毕后在100℃下继续反应0.5－1小时，完成磺化反应得到反应物；4)、完成磺化反应后将反应物放料至中和釜中，并往所述中和釜中加入浓度为50％的氢氧化钠水溶液，至反应物呈中性，即得到石油古马隆减水剂。其利用石油工业的副产物制备而成，因此，成本低廉，且减水率高，具早强作用。
Petroleum coumarone water reducing agent and preparation method thereof
The invention relates to a petroleum coumarone water reducing agent and a preparation method thereof. The preparation method comprises the following steps: 1) crushing petroleum coumarone; 2) adding 2-4 parts by weight of concentrated sulfuric acid into a reaction kettle, raising the temperature to 90-95 DEG C, simultaneously starting stirring, and slowly adding 1-2 parts by weight of the crushed petroleum coumarone into the reaction kettle for 0.5-1 hour; 3) after the addition is finished, continuously reacting at 100 DEG C for 0.5-1 hour, and finishing sulfonation reaction to obtain a reactant; and 4) after the sulfonation reaction is completed, discharging reactants into a neutralization kettle, and adding a sodium hydroxide aqueous solution with the concentration of 50% into the neutralization kettle until the reactants are neutral, thereby obtaining the petroleum coumarone water reducing agent. The water-reducing agent is prepared from by-products of the petroleum industry, so that the water-reducing agent is low in cost and high in water-reducing rate and has an early strength effect.
本发明涉及一种石油古马隆减水剂及其制备方法，所述制备方法包括以下步骤：1)、将石油古马隆粉碎；2)、在反应釜中加入2－4重量份的浓硫酸并升温至90‑95℃，同时开动搅拌，并将粉碎后的所述石油古马隆1－2重量份慢慢加入到所述反应釜中，其中，加入时间为0.5－1小时；3)、加入完毕后在100℃下继续反应0.5－1小时，完成磺化反应得到反应物；4)、完成磺化反应后将反应物放料至中和釜中，并往所述中和釜中加入浓度为50％的氢氧化钠水溶液，至反应物呈中性，即得到石油古马隆减水剂。其利用石油工业的副产物制备而成，因此，成本低廉，且减水率高，具早强作用。
Petroleum coumarone water reducing agent and preparation method thereof
一种石油古马隆减水剂及其制备方法
ZHOU DUNBAI (Autor:in) / YOU QI (Autor:in) / YU HONG (Autor:in) / DENG LING (Autor:in) / HUANG HU (Autor:in) / ZHAO JIANGNAN (Autor:in) / HUANG CHENG (Autor:in) / PENG LING (Autor:in) / LIN SHUNYAN (Autor:in) / YE JINQIAO (Autor:in)
29.11.2022
Patent
Elektronische Ressource
Chinesisch
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