Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Straw raw material pretreatment and sulfonation-hydroxymethylation modification method for straw-based water reducing agent
The invention discloses a straw raw material pretreatment and sulfonation-hydroxymethylation modification method for a straw-based water reducing agent. A precursor straw lignocellulose pretreatment and sulfonation-hydroxymethylation modification material meeting the requirements of the straw-based water reducing agent is prepared. The method comprises the following steps: 1) primary crushing: crushing into straw sections of about 1-3cm; 2) cleaning: cleaning impurities such as mud and sand; 3) drying: drying to enable the moisture content to be below 10%; 4) secondary crushing: crushing the straw into straw sections of 1-10 mm; 5) micro-crushing: enabling the discharging granularity to be below 400 microns through a ball mill; 6) hydrolyzing: adding a lubricating additive, a main catalytic acid and a co-catalytic acid into the extruder for hydrolysis, 7) oxidizing: adding an oxidant into the extruder for an oxidation chain-breaking reaction, 8) sulfonating: adding a sulfonating agentinto the extruder for a reaction, 9) alkalizing: adding an alkali liquor into the extruder for a reaction, and 10) hydroxymethylating: adding a hydroxymethylation reagent into the extruder for a reaction.
本发明公开了一种秸秆基减水剂秸秆原料预处理及磺化‑羟甲基化改性的方法，制备出符合秸秆基减水剂所需的前驱体秸秆木质纤维素预处理和磺化‑羟甲基化改性物料。包括如下步骤：1)初碎：粉碎成1‑3cm左右的秸秆段；2)清洗：把泥砂等杂质清洗干净；3)干燥：进行烘干，使其含水率在10％以下；4)二次粉碎：粉碎成1‑10mm的秸秆段；5)微碎：通过球磨机使得出料粒度400μm以下；6)水解：在挤出机中加入润滑添加剂、主催化酸和助催化酸进行水解；7)氧化：在挤出机加入氧化剂进行氧化断链反应；8)磺化：在挤出机中加入磺化剂反应；9)碱化在挤出机中加入碱液反应；10)羟甲基化。在挤出机中加入羟甲基化试剂反应。
Straw raw material pretreatment and sulfonation-hydroxymethylation modification method for straw-based water reducing agent
The invention discloses a straw raw material pretreatment and sulfonation-hydroxymethylation modification method for a straw-based water reducing agent. A precursor straw lignocellulose pretreatment and sulfonation-hydroxymethylation modification material meeting the requirements of the straw-based water reducing agent is prepared. The method comprises the following steps: 1) primary crushing: crushing into straw sections of about 1-3cm; 2) cleaning: cleaning impurities such as mud and sand; 3) drying: drying to enable the moisture content to be below 10%; 4) secondary crushing: crushing the straw into straw sections of 1-10 mm; 5) micro-crushing: enabling the discharging granularity to be below 400 microns through a ball mill; 6) hydrolyzing: adding a lubricating additive, a main catalytic acid and a co-catalytic acid into the extruder for hydrolysis, 7) oxidizing: adding an oxidant into the extruder for an oxidation chain-breaking reaction, 8) sulfonating: adding a sulfonating agentinto the extruder for a reaction, 9) alkalizing: adding an alkali liquor into the extruder for a reaction, and 10) hydroxymethylating: adding a hydroxymethylation reagent into the extruder for a reaction.
本发明公开了一种秸秆基减水剂秸秆原料预处理及磺化‑羟甲基化改性的方法，制备出符合秸秆基减水剂所需的前驱体秸秆木质纤维素预处理和磺化‑羟甲基化改性物料。包括如下步骤：1)初碎：粉碎成1‑3cm左右的秸秆段；2)清洗：把泥砂等杂质清洗干净；3)干燥：进行烘干，使其含水率在10％以下；4)二次粉碎：粉碎成1‑10mm的秸秆段；5)微碎：通过球磨机使得出料粒度400μm以下；6)水解：在挤出机中加入润滑添加剂、主催化酸和助催化酸进行水解；7)氧化：在挤出机加入氧化剂进行氧化断链反应；8)磺化：在挤出机中加入磺化剂反应；9)碱化在挤出机中加入碱液反应；10)羟甲基化。在挤出机中加入羟甲基化试剂反应。
Straw raw material pretreatment and sulfonation-hydroxymethylation modification method for straw-based water reducing agent
一种秸秆基减水剂秸秆原料预处理及磺化-羟甲基化改性的方法
ZHANG DEYU (Autor:in) / ZHANG HUIQIN (Autor:in) / ZHANG JIANBIN (Autor:in) / ZHU YUANCHENG (Autor:in) / TANG HUI'AN (Autor:in) / WANG PENG (Autor:in) / LIU KUI (Autor:in) / SI CHANGDAI (Autor:in) / WANG XIAOFANG (Autor:in) / LIU XINWEN (Autor:in)
28.08.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
C08H
DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
,
Derivate von natürlichen makromolekularen Verbindungen
/
D01C
CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING
,
Chemische oder biologische Behandlung von natürlichem fadenförmigen oder faserigen Material zur Gewinnung von Fäden oder Fasern zum Verspinnen
/
D21B
Faserige Rohstoffe oder ihre mechanische Behandlung
,
FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
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