新戊二醇（NPG），白色結(jié)晶固體，無味，吸濕。主要用于生產(chǎn)不飽和樹脂，無油醇酸樹脂，聚氨酯泡沫塑料和增塑劑，表面活性劑，絕緣材料，印刷油墨，阻聚劑，合成航空潤滑油添加劑等。下面氫氧化鉀廠家為您講解下新戊二醇的合成及注意事項。

Neopentyl glycol (NPG), white crystalline solid, odorless, hygroscopic. It is mainly used to produce unsaturated resin, oil-free alkyd resin, polyurethane foam and plasticizer, surfactant, insulating material, printing ink, polymerization inhibitor, synthetic aviation lubricant additive, etc. Below, the potassium hydroxide manufacturer will explain to you the synthesis and precautions of neopentyl glycol.

新戊二醇合成法：

Synthesis method of neopentyl glycol:

1.甲酸鈉法將異丁醛和甲醛在30-35℃，pH值為9-11的條件下在堿性催化劑存在下縮合形成羥基-叔丁醛和過量的甲醛。被氧化并與堿反應(yīng)形成甲酸鈉。用甲酸中和反應(yīng)溶液，并在減壓下蒸餾和脫水。將濃縮的溶液進行分層萃取以去除甲酸鈉，然后冷卻，結(jié)晶并分離以獲得終產(chǎn)物。

1. The sodium formate method condenses isobutyraldehyde and formaldehyde at 30-35 ℃ and pH 9-11 in the presence of an alkaline catalyst to form hydroxy-tert-butyraldehyde and excess formaldehyde. It is oxidized and reacts with alkali to form sodium formate. Neutralize the reaction solution with formic acid, and distill and dehydrate under reduced pressure. The concentrated solution is subjected to layered extraction to remove sodium formate, followed by cooling, crystallization, and separation to obtain the final product.

2.加氫方法：將異丁醛和甲醛縮合，得到羥基新戊醛，其通過加氫還原而獲得。

2. Hydrogenation method: Condensate isobutyraldehyde with formaldehyde to obtain hydroxy neoglutaraldehyde, which is obtained through hydrogenation reduction.

新戊二醇注意事項：

Precautions for Neopentyl Glycol:

1.存放期間保持包裝完好。應(yīng)與氧化劑和食用化學(xué)品分開存放。使用防爆照明和通風(fēng)設(shè)施。禁止使用易產(chǎn)生火花的機械和工具。儲存區(qū)域應(yīng)配備泄漏應(yīng)急處理設(shè)備和合適的容納材料。請勿將其暴露于明火中。應(yīng)保持通風(fēng)干燥，以防日曬。儲存溫度為-50℃45℃。

1. Keep the packaging intact during storage. It should be stored separately from oxidants and edible chemicals. Use explosion-proof lighting and ventilation facilities. Prohibit the use of machinery and tools that are prone to sparks. The storage area should be equipped with leakage emergency response equipment and suitable containment materials. Do not expose it to open flames. Ventilation and dryness should be maintained to prevent sun exposure. The storage temperature is -50 ℃ and 45 ℃.

2.在運行過程中，要進行密閉操作以增強通風(fēng)。

2. During operation, enclosed operations should be carried out to enhance ventilation.

操作員戴上化學(xué)防護眼鏡，穿上防毒滲透工作服，并戴上橡膠耐油手套。在工作場所遠離火源，熱源和吸煙。使用防爆通風(fēng)系統(tǒng)和設(shè)備。防止蒸氣泄漏到工作場所的空氣中。避免與氧化劑接觸。包裝時，注意防止靜電積聚，并有接地裝置。處理時請小心處理，以免損壞包裝。配備了相應(yīng)品種和數(shù)量的消防設(shè)備和泄漏應(yīng)急處理設(shè)備。

The operator should wear chemical safety goggles, gas permeation resistant work clothes, and rubber oil resistant gloves. Stay away from sources of ignition, heat, and smoking in the workplace. Use explosion-proof ventilation systems and equipment. Prevent vapor leakage into the air of the workplace. Avoid contact with oxidants. When packaging, pay attention to preventing the accumulation of static electricity and have a grounding device. Please handle with caution to avoid damaging the packaging. Equipped with corresponding types and quantities of firefighting equipment and leakage emergency response equipment.

同時，新戊二醇也是一種非常好的溶劑，可用于芳香烴和環(huán)烷基烴的選擇性分離。氨基烤漆具有良好的保光性，不會發(fā)黃；它也可以用作生產(chǎn)穩(wěn)定劑和殺蟲劑的原料。您有需求就來我們網(wǎng)站http://www.laiyanglicheng.com咨詢吧！

Meanwhile, neopentyl glycol is also a very good solvent that can be used for selective separation of aromatic hydrocarbons and cycloalkanes. Amino baking paint has good light retention and will not turn yellow; It can also be used as a raw material for producing stabilizers and insecticides. Come to our website if you have any needs http://www.laiyanglicheng.com Consult!