硅酸钠

Crystalline layered sodium disilicate was prepared with wastes of zirconium oxychloride.

以氯氧化锆生产中排放的废弃物碱性废水和酸性硅渣为主要原料制备了层状硅酸钠。

Layered sodium disilicate s (Na_2Si_2O_5) have good ion binding capacity, provide appropriate water alkalinity; and may cooperate with other composition in good method, They were considered as excellent non-phosphate detergent builder and have good prospect for substitut.

层状二硅酸钠由于具有优良的阳离子脱除能力、碱性适中、与洗涤剂其它成分配伍性能好被认为是优良的无磷洗涤剂助剂，具有良好的工业前景。

Process technology for manufacture of δ-layered crystalline sodium disilicate using dilute alkali liquor and acidic silica residue ,which are waste effluents from zirconium oxychloride production,with supplement of a small amount of quartz sand was studied.

利用氯氧化锆生产过程中排放的稀碱液、酸性硅渣辅加少量石英砂，研究了δ-层状结晶二硅酸钠的制备工艺，得到较佳合成工艺条件为：反应液配比M=n(S iO2)/n(Na2O)=2。

Phosphate-free detergent builder ; sodium disilicate ; composite detergent buil

无磷洗涤助剂；二硅酸钠；复合洗涤助剂

The process is carried out by rubbing into filament raw materials, digesting in plasticizing liquid of sodium hydrate and sodium silicate at 100-130degree for 1-2hrs to obtain plasticized raw material, high-speed agitating plasticized raw materials with non-metallic minerals, octadecanoic acid and silicon oil at 100-130degree for 15-45hrs, coating and drying to obtain the final product.

先用农用搓揉机直接搓揉成丝状物料，然后丝状物质在含氢氧化钠和硅酸钠的塑化液中于100～130℃下蒸煮1～2小时，得到塑化物料，最后将塑化物料同改性非金属矿粉、硬脂酸和硅油在100～130℃下高速搅拌15～45分钟进行包覆处理，干燥后便得到目标产物。

By experiment, we can concluded that stabilizers, chelatingagents, activators are necessary. 2.5%～5% sodium silicate,0.25%～1% magnesium sulfate,1%～2.5% citric acid,1.5%～2% OOBS are appropriate for peroxy bleaching.

通过实验证实，在过氧漂白中，稳定剂、漂白活化剂、螯合剂是必不可少的添加剂。2.5%～5%的硅酸钠、0.25%～1%的硫酸镁、1%～2.5%的柠檬酸、1.5%～2.5%的OOBS对于过氧化氢开释活性氧起到稳定或活化的作用，达到较好的漂白效果。

By orthogonal experimental design method, the optimized degumming parameters have been confirmed: preacid processing, the concentration of sulfuric acid 2 g/L, treatment time 120 min, treatment temperature 60℃, bath ratio 1:15; alkali treatment, the alkaline concentration of one-pot 7.5 g/L, that of two-pot 9 g/L, treatment time of one-pot 3.5h, that of two-pot 2h, treatment temperature 100℃, bath ratio 1:20, each concentration of the Sodium Silicate, carbamide, and JFC 2%.

预酸处理，硫酸溶液质量浓度2 g/L，处理时间120 min，处理温度60℃，浴比1：15；碱处理，一煮碱溶液质量浓度7.5 g/L，二煮碱溶液质量浓度9 g/L，一煮处理时间3.5 h，二煮处理时间2 h，处理温度100℃，浴比1：20，其中一煮与二煮中添加2%的硅酸钠、尿素和JFC。

In this paper,mechanism and influential factors of sodium silicofluoride caking were analyzed in detail.

随着时间的推移，这些晶体之间形成晶桥，使氟硅酸钠粘结在一起，逐渐形成团块

The results indicate that aluminum fluoride product will be returned about 140 t,sodium silicofluoride and cryolite are 238 t and 206 t,and neutralization residue is 375 t,if the mother liquor output of aluminum fluoride product is 4000 t per year.The annual economic benefit will reach 1,400,000 yuan RMB.

半工业化实验结果表明：计算年产4 000 t氟化铝产品的母液，企业可回收产品氟化铝140 t，生产副产品氟硅酸钠238 t、冰晶石206 t、中和残渣375 t，每年可获效益140万元人民币。

The invention employs waste glass power and sludge as main raw materials in the ceramsite formula, and one of sodium silicofluoride and borax as auxiliary raw material, then super lightweight ceramsite of baking sludge glass is baked at low temperature, the invention has the advantage of energy conservation.

本发明陶粒配方以废玻璃粉和污泥为主要原料，以氟硅酸钠和硼砂之一为辅助原料，低温烧成污泥玻璃超轻陶粒，具有节能的优点。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。