1、 Price trend

Isopropanol prices fell this week, according to commodity data monitoring. At the beginning of the week, the average price of isopropanol in China was 12666.67 yuan / ton, while at the end of the week, the average price was 12275 yuan / ton, and the price fell within the week by 3.09%.

2、 Market analysis

Domestic isopropanol prices continued to fall this week. In the international market, the isopropanol market in the U.S. continued to decline, while the isopropanol market in Europe closed down sharply. The demand for isopropanol in the overseas disinfectant Market decreased, the overseas orders decreased, the operating rate of isopropanol factories decreased, and the price decreased. There are many domestic trade enquiries, mainly waiting and taking care of the goods. Up to now, Shandong isopropanol negotiation range is about 11500-11900 yuan / ton, and Jiangsu isopropanol negotiation range is 11800-12500 yuan / ton. The negotiation range of isopropanol in South China is 12600-12700 yuan / ton. Recently, export orders decreased, and isopropanol benefits slowed down.

In terms of raw materials, the acetone market returned to a rational space this week, with prices gradually reduced. Currently, the mainstream market has fallen below 10000 yuan, and the short-term negotiation range in East China may be 9600-9900 yuan / ton. The price of isopropanol by acetone method has also been adjusted accordingly, and the price is inclined downward, and the range is not small. In terms of propylene, the market price of propylene in Shandong fell slightly. It began to fall on the 22nd. Today, it still falls by about 100 yuan / ton. Now it has fallen by about 200 yuan / ton. Now, the market turnover is between 6600-6950 yuan / ton, and the mainstream price is about 6650 yuan / ton. The price of isopropanol from propylene process is also reduced accordingly.

3、 Future forecast

Isopropanol analysts from the chemical branch of business society think: the prices of raw materials acetone and propylene both fell, and the cost support was weak. In terms of demand, the favorable foreign trade slowed down, export orders were significantly reduced, domestic trade enquiries were more frequent, wait-and-see was the main thing, and taking goods was very cautious. On the whole, in the short term, the price of isopropanol is likely to continue to decline, and follow-up attention will be paid to the change of news.

According to the monitoring data of the business agency, the price of ethylene in the external market has been on the rise recently. The average price of ethylene on the 21st day was $715.50/ton, and the price on the 22nd day was $728.80/ton, up 1.75%. The current price is 37.10% higher than the previous year, and the current price is 21.66% lower than the previous year.

In the near future, ethylene is on the rise as a whole. Asian ethylene market prices remained stable. As of the 22nd, CFR Northeast Asia closed at US $835-845 / ton, and CFR Southeast Asia closed at US $785-795 / ton. The price of European ethylene market rose. As of the 22nd, the price of European ethylene market was FD, northwest Europe closed at US $656-666 / ton, and CIF northwest Europe closed at US $617-625 / ton. The price of ethylene in the U.S. region is stable. As of the 22nd, the price is US $215-231 / ton. Generally speaking, the market of ethylene in Europe and America has been rising steadily in the near future. The trading atmosphere of the whole ethylene market is good, and the market has been rising in stages, which is also related to the large drop in the early ethylene market.

International: on June 22, the recovery of global oil demand accelerated, and the price of WTI crude oil futures market in the United States rose. The settlement price of major contracts was $40.46/barrel, or $0.71. Brent crude oil futures market price rose, the settlement price of main contracts was $43.08/barrel, up $0.89, and the international oil price rose for three consecutive trading days, supporting the cost of ethylene.

The price of downstream styrene rose slightly. The average price of ethylene on the 21st day was USD 5483.00/t, and the price on the 22nd day was USD 5548.00/t, up 1.19%, which is good for supporting the upward price of ethylene.

According to ethylene analyst of business Chemical Branch, at present, in terms of crude oil, market demand shows signs of recovery, and prices continue to rise, forming a cost support for ethylene. Therefore, data analyst of business club expects that ethylene prices will mainly rise next.

According to the data monitoring of business agency, the price of plasticizer DOP rose in shock this week, and the market of DOP rose slowly. As of June 22, the price of DOP in East China was 7300.00 yuan / ton, up 2.34% from 7133.33 yuan / ton at the beginning of last week, up 4.29% year-on-year.

Cost factor

It can be seen from the trend chart of raw material phthalic anhydride that the price of DOP raw material phthalic anhydride fluctuated and remained stable this week. DOP raw material price is stable temporarily, DOP cost is stable, phthalic anhydride market is stable, DOP market growth momentum is weakened.

From the trend chart of octanol price, we can see that the price of DOP raw material octanol rose in shock this week. DOP raw material prices rose, DOP costs rose, DOP increased momentum.

Industrial chain factors

From the PVC price trend chart, we can see that this week PVC prices fell, PVC market fell. DOP demand is mainly rigid demand, PVC market fell, increasing downward pressure on DOP.

Market overview and future expectation

According to Bai Jiaxin, data analyst of DOP of business agency, the price of raw materials phthalic anhydride and octanol of plasticizer DOP rose sharply this week, which was good for DOP market. The driving force for DOP to rise increased and DOP price rose. Downstream customers, PVC market weakened, DOP just need to reduce, DOP up momentum weakened. Generally speaking, DOP market is rising slowly, and the momentum of future DOP market is general, and DOP market is strong and stable.

At the beginning of this week, the price of activated carbon is 11016 yuan / ton, and at the end of this week, the price of activated carbon is 11016 yuan / ton, which is stable.

At present, the price of domestic activated carbon is stable, and the ex factory price of East China coconut shell water purification activated carbon is about 7000-12000 yuan / ton; the domestic activated carbon market is mostly on the sidelines, the price is temporarily stable, the mentality of traders is general, the operation is mainly accompanied, the terminal demand is not improved, and the firm deal is negotiated.

The cost pressure of coconut shell, fruit shell, charcoal and other main raw materials in the upper reaches of activated carbon supports the demand, while the cost support of coal-based carbon raw materials is weak. The downstream power, medicine and other demand industries collect goods according to the single order, the purchase market of activated carbon for air purification and water purification is favorable, the environmental protection policies boost the activated carbon market, and the performance of the activated carbon market is stable.

Forecast: it is difficult to mobilize the enthusiasm of the downstream plant of activated carbon. The basic small order purchase is to meet the normal production, and the delivery and investment atmosphere continues to be flat.

Effect of sodium chloride on dyeing

As an electrolyte, sodium hydroxide can promote the dyeing of cotton with reactive turquoise blue. It can change the dyeing speed and dyeing rate, with a small amount of addition and a low utilization rate of dye. With a large amount of addition, it can shorten the dyeing time, but it is not easy to dye evenly, thoroughly and easily produce color flowers. Reactive turquoise blue is less sensitive to electrolytes (compared with other reactive dyes). When the content of sodium hydroxide in the dye solution is less than 30g / L, the dyeing promotion is more obvious, the content increases, and the dyeing promotion effect is weak. When the local content of sodium hydroxide reaches 250G / L, the dye will agglomerate and salting out. In actual operation, the method of pre adding sodium hydroxide and soda ash (or bicarbonate soda) can be used, that is to say, first 1-5g / L of sodium hydroxide and 0.5g-1g/l of sodium carbonate are added into the auxiliary cylinder to fully dissolve and then put into the main cylinder. After ten minutes of operation, the dye is added. This method can improve the dye uptake of reactive turquoise blue (a small amount of alkali agent will improve the conversion of Hydroxyl Anion on cellulose) and the utilization of the dye.

When dyeing dark turquoise blue, if you need to add more sodium hydroxide or sodium hydroxide, pay special attention to the phenomenon of agglomeration and salting out when the content is too high.

Effect of soda on dyeing

Reactive dyes react with cellulose fibers in alkaline condition, that is, fixation reaction. In factory production, sodium carbonate can be added in several times according to the color depth, so that the pH value of the dye solution rises slowly. When the pH value is greater than 10, reactive turquoise blue is very sensitive, and attention should be paid at all times during dyeing operation.

When soda ash is added, it should also be added in several times: add 10% for the first time, use the refluxing dye solution to compare the dilution with the big bath, use a certain amount of clear water for the second and the third time, first beat it into pulp, then dilute it with hot water (60-80 ℃), and then beat it from the auxiliary cylinder to the main cylinder. The amount of soda added should be determined according to the amount of dye. If the dye is too low, the dyeing is not thorough, the amount of added is too large, and the reaction is too fast, although the amount of dye is increased to a certain extent, But it is easy to produce color flower, color difference and dye agglomeration. At the same time, the hydrolysis of dye is also accelerated. It is not easy to use the pre alkali method in the color matching of turquoise blue and light yellow, because the light yellow is sensitive to alkali, fast dye and easy to appear the problem of color and flower.