In this process, the electrolylic bath with cationic exchange membrance and leas electrode is used. The cathode liquor is oxalic acid, the anode liquor is diluted sulfuric acid. The process above has following advantages with high yield, top quality, lower cost, no "three wastes" pollution, and no oxalic aldehyde in the product. It is a cleaner and environment-friend technology, and is a development trend for production of glyoxalic acid. Complete analytical process for raw materials, intermediate and final products were established.

本論文通過對乙醛酸合成路線的研究黄色三级毛片操逼小视频基地，確定了草酸電解法制乙醛酸的工藝路線中国一级毛片录像免费看，此法采用裝有陽離子交換隔膜和鉛電極的電解槽，陰極電解液為草酸溶液自拍偷拍深夜精品福利，陽極電解液為稀硫酸国产日本欧美黄色网站在线观看，該工藝具有產(chǎn)品收率高、質(zhì)量好91美国黄色視頻、成本低国产精品吹潮视频、無三廢污染、產(chǎn)品中無乙二醛等特點级特大黄片视频影院国产，是一條清潔人人搞人人操人人叉一、綠色工藝，是生產(chǎn)乙醛酸的主要發(fā)展方向在欧美特级方面,想看欧美特级黄片。

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%.

預酸處理男女激情猛烈无遮挡在线观看，硫酸溶液質(zhì)量濃度2 g/L，處理時間120 min久久黄色a级，處理溫度60℃黄色视频三级片真人，浴比1：15；堿處理免费看av的在线网站，一煮堿溶液質(zhì)量濃度7.5 g/L天天狠天天透天干天天xa55，二煮堿溶液質(zhì)量濃度9 g/L，一煮處理時間3.5 h，二煮處理時間2 h成年人AV网站，處理溫度100℃日韩激情中文字幕视频在线，浴比1：20，其中一煮與二煮中添加2%的硅酸鈉a片免費大全、尿素和JFC91日韩在线视频免费观看。

It was thought that he disposed of the corpse in an acid bath.

據(jù)猜想他在酸浴槽里銷毀了尸體。

The trouble is the sea then becomes an acid bath. Even so, some people think it can still help.

這樣做將會使海洋變成一個酸浴求一级黄色网站，但是即使如此欧美湿身诱惑超碰在线，依然有人認為這種做法是可行的。

The trouble is the sea then becomes an acid bath.

問題是那時海洋將變成了一個酸液池2019偷拍黄色视频精品。

An acid bath used to stop the action of a developer.

用于停止顯影劑反應的酸性溶液色哟哟精品入口。

It turns out that some fossils can be extracted from these sediments by putting the rocks in an acid bath.

結(jié)果表明，將巖石放在一些盛有酸的容器里1024国产视频精品欧美一区，一些化石就能從這些沉淀物中離析出來国产绿帽精品一级视频。

It is produced by passing a paper web through a sulfuric acid bath that fuses its fibers into a homogeneous mass.

中義一種抗油紙，在生產(chǎn)過程中將紙浸到硫酸池中使纖維融為一體国产午夜一级福利毛片视频6，增加強度午夜小电影日本欧美。

Never seen acid bath photo-resist metal etch manipulation before?

&從未見過酸浴的照片-抵制金屬蝕刻操縱前&？

Strictly enforce the ISO9001:2000 quality management to Q/3201 ZZZL 01-2006 (higher than the current national quality indexes in general) for testing production quality control standards, the National Academy of Science and dozens of businesses to supply castor oil acid bath products and standards. counterparts in the leading position.

嚴格執(zhí)行ISO9001：2000質(zhì)量管理射欧美综合，以Q/3201 ZZZL 01-2006(高于現(xiàn)行企業(yè)普遍采用的國家質(zhì)量檢測指標)為質(zhì)量檢測生產(chǎn)控制標準激情五月天综合网，為中國科學院和全國數(shù)十家企業(yè)供應蓖麻油酸系列產(chǎn)品和標準小樣，在同行中處于領(lǐng)先地位欧美性天堂2019。